POEM: Humpty’s Mechanics

the best minds of my time
were bottled by assembly line
and all the world paid the price
when we popped the top and took a slice

 

 

they put the sections under the scope
but found nothing to give them hope
brain of greatness, brain of shame
microscopically, they all look the same

 

 

we knew the greatness by its absence
the wise don’t set foot in a lab since
but then, of course, there were the quacks
who tried to glue brain slices back

 

 

sadly they couldn’t see their flaw
unacquainted with the Second Law
they thought it was mere devilry
while thwarted by rising entropy

BOOK REVIEW: The Discourse Summaries by S.N. Goenka

Discourse SummariesDiscourse Summaries by S.N. Goenka
My rating: 4 of 5 stars

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I began reading the summaries before I attended the Vipassana meditation 10-day course. While most of one’s days are spent in meditation, each evening they play video-taped discourses by S.N. Goenka, with each running for an hour to an hour-and-a-half. As the title suggests, this book consists of edited transcripts of those talks. As the course is known for being challenging (approximately 10 hours/day in meditation, noble silence [no talking–or even acknowledging–anyone but the teacher and staff], and no distractions [no phones, no books, no journals, no i-Pods, etc.]), reading the discourses was a way to mentally prepare for the course. (Though I’d already read a book call “Equanimous Mind” by an individual who’d completed the course.)

Let me provide background for those unfamiliar with Vipassana meditation. It’s nominally a Theravadan Buddhist practice, but its religiosity is stripped to a minimum and it’s presented in a largely secular manner. That doesn’t mean that a scientifically-minded skeptic such as myself isn’t occasionally left scratching his head and thinking “that’s not right.” However, it’s repeatedly emphasized that one should take what is of value to oneself and leave the rest behind, and so while there are a few notions mentioned during the discourses that aren’t supported by evidence, one needn’t believe anything controversial to benefit from the practice. (e.g. Karma and reincarnation are mentioned, but if one doesn’t believe those are likely realities, it doesn’t change the effectiveness of the meditation.)

Moving on, Theravadan Buddhism is the branch that is most commonly practiced in Southeast Asia. (It’s sometimes called Hinayana, but—as I learned during a discourse—that’s considered a derogatory term by many Theravadans. “Hinayana” means “lesser vehicle” in contrast to Mahayana’s “greater vehicle,” and the implication is that it’s a path by which only a more select group can achieve enlightenment. One can readily see why this would be objectionable to Vipassana practitioners as they emphasize that the practice is available to everybody [one need not even identify as Buddhist] and that the practice is the heart of the path to enlightenment.) Vipassana meditation involves systematically scanning one’s body for sensations and acknowledging them without attaching positive or negative thoughts and labels to them. The idea is to train oneself to not mindlessly react to sensations, nor to mindlessly attach values to them.

There are eleven discourses, corresponding to the days over which one is at meditation center. However, the new information is mostly in the discourses from days one through nine. The last two discourses consist of a review and a discussion of to how to keep one’s practice going—should one choose to do so.

The discourses present two types of information. On one hand, they provide a primer on Buddhist philosophy regarding the path to enlightenment. For example, Goenka explains the Four Noble Truths and the Eight-fold Path. The Four Noble Truths describe human suffering, its causes, and the path to moving beyond this suffering. That path brings one to the Eight-fold Path which describes eight areas in which one must properly align one’s approach in order to eliminate said suffering.

On the other hand, the discourses provide information about the meditational practices and the logic that informs them. During the first few days of the course, one focuses on respiration and related sensations over a progressively smaller area around and on the nose. Then, on the fourth day, one gets into the Vipassana practice as mentioned above (scanning the body for sensation), but one practices several variations of this over the last few days of the course. It seems that one practices these different ways both because one becomes capable of more challenging approaches and because not everybody experiences the same types of sensations, and so some methods work better for some types of sensations than others. To give an example, on day one might scan one arm at a time, but then one shifts to scanning both arms simultaneously.

There are no graphics and the only ancillary matter consists of a list of Pali quotations as well as a Pali term glossary. (Pali is the language in which the Buddhist scriptures were originally written.) However, there was really no need for either graphics or notations.

I found these summaries were worth reading even having gone through the course and heard the discourses at the center. For one thing, there’s a good amount of information packed into the lectures. While it’s not hard to understand, there’s a high density of information content. For another, Goenka was a charming and humorous individual, so it’s not boring to watch the taped discourses even if one has previously read them.

I would definitely recommend reading the Discourse Summaries if one is considering taking the Vipassana course.

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BOOK REVIEW: Subliminal by Leonard Mlodinow

Subliminal: How Your Unconscious Mind Rules Your BehaviorSubliminal: How Your Unconscious Mind Rules Your Behavior by Leonard Mlodinow
My rating: 4 of 5 stars

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If one tries to detect lies using conscious analysis, one stinks—wrong as often as right. However, if one distracts the conscious mind so as to produce what is often called a hunch, one performs much better. This is because not only is there is another mind below one’s conscious mind, but it’s better at many tasks than is our conscious mind. This will be hard news for many readers to take because they are reading and comprehending it with their conscious minds—a conscious mind that thinks it’s better than sliced bread when it comes to things that are awesome. Mlodinow’s book is about the many aspects of this mind that we generally don’t have access to (unless one is skilled in lucid dreaming or is conscientious in the hypnagogic state [on the edge of falling into sleep]—topics the author doesn’t get into.) It’s about why humans evolved to have subliminal mental operations, how they benefit us, and how they sometimes fail us.

Ideas about what the unconscious mind is have varied over the ages, though its existence has long been recognized. Ancient traditions often attributed the unconscious to the supernatural causes like a collective consciousness. Mlodinow begins his book with a chapter entitled “The New Unconscious,” presumably to distinguish it from Freud’s conception and to emphasize the wellspring of results that have come about during the last couple decades of brain research.

The second chapter deals with our sensory experience and the role that unconscious elements play in shaping it. People tend to overestimate the extent to which they experience a high-fidelity and high-resolution display of the world, and underestimate the degree to which the brain fudges to make it seem so. Facial recognition, which is one of the most fundamental of human skills, is a centerpiece of the discussion.

The third chapter discusses memory. Again, the underlying theme is how the brain can make mistakes as it tries to cobble together a story with a combination of information we have, blank spots, and guesses. One may be surprised to discover how poorly one is able to describe the details of things that one sees—if not every day—at least thousands of times in a lifetime.

The next chapter examines how our unconscious plays into our social life. The concept of a “theory of the mind” is at the center of this discussion—and it may not be what you think. Theory of the mind is the ability to figuratively see the world through the eyes of others, to understand justifications for what others have done, and to anticipate what they will do in the future. We also learn about oxytocin and vasopressin, the so-called “love hormones,” whose presence corresponds to our fond feelings for others.

Chapter five continues the discussion of the previous chapter along a specific line of discussion—that of reading people. We are wired to make sense of the facial expressions and non-verbal behavior of other people and this chapter explores that ability as well as its limits. Chapter six describes how we draw quick and unconscious conclusions about people on the basis of how they look, feel, and smell. By way of example, I’ll offer a case from another book I read recently (I don’t believe Mlodinow refers to this particular study, but I may be mistaken) in which a mock interview was set up. Right before their interview meetings, some of the individuals were asked to hold either a hot or cold coffee (or nothing.) It turned out that whether a subject had held a beverage (and what kind) had a profound influence on the interviewers’ feelings about that subject (i.e. the degree to which an interview subject was seen as a cold or warm person had as much to do with an unconscious evaluation of a handshake as it did the conscious interpretation of the individual’s personality.)

The next couple chapters (7 and 8) explain the crucial role of the unconscious mind in categorizing things and people, how that skill has been essential to our survival, and how this sometimes gets us in trouble (e.g. racism.) Chapter 9 delves into the role of emotions, and what the author calls “emotional illusions.” Sometimes we make a decision because we have an emotional experience associated with the decision scenario, but being in an emotional state that is unrelated to the decision still affects the decision.

The last chapter is about how our attachment to self can influence decisions. You’ve probably read about studies showing 90+ percent of the population think they are better than average at something. Also, you may remember from Psychology class a discussion of the self-serving bias (attributing positive outcomes to one’s awesomeness, while blaming external forces for negative outcomes.) This chapter deals in these types of phenomena.

The book has a few relevant black-and-white graphics as well as annotations / citations.

I found this book to be interesting, but not unlike many books that are presently available. I thought it could have ventured into more novel and interesting territory. There are actually a number of books that focus on how we are wired, and the glitches that result. Sometimes our evolutionary programming served us well under hunter-gatherer conditions, and sometimes it still serves us most of the time–but fails us on occasion. There are a number of books that discuss this–often using the same or similar examples as Mlodinow (e.g. consider Eagleman’s “Incognito.”) However, the ways in which the unconscious mind can be interacted with, such as lucid dreaming, are now being scientifically studied, and so there exists a capacity to move beyond the blooper reels of the mind—though that topic is certainly a popular subject, both of scholarly study and pop science books such as this one.

If you are looking for a book on how the unconscious mind both benefits and deceives us, this is a good choice. Mlodinow has a sense of humor and writes complex subjects in an easy to comprehend fashion. However, if you’ve read up on the subject, you might not find much new here.

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BOOK REVIEW: Inside Jokes by Matthew M. Hurley, et. al.

Inside Jokes: Using Humor to Reverse-Engineer the MindInside Jokes: Using Humor to Reverse-Engineer the Mind by Matthew M. Hurley
My rating: 4 of 5 stars

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This book examines the science of why we find funny what we find funny. Most people probably feel about this as did E.B. White who said, “Analyzing humor is like dissecting a frog. Few people are interested and the frog dies of it.” Still, while analyzing humor may not be as fun as reveling in it, it’s fascinating to scientifically inquiring minds.

Humor is universal (not the humor of a specific joke, but the experience of somethings being humorous.) A skilled science fiction writer might conjure up an alien race that is credibly humorless. But it defies credulity that even the remotest of aboriginal Earthling wouldn’t giggle or guffaw at the sight of an off-course ball careening into an unsuspecting man’s crotch. Humor’s universality begs certain questions. First and foremost, one expects there to be some evolutionary advantage to a sense of humor. That evolutionary mechanism is precisely what Hurley, Dennett, and Adams attempt to demonstrate in this book. The authors suggest that the pleasure associated with humor is a reward for recognizing an incongruity, and they go into great deal to fill in the details needed to explain the panoply of things people find funny, while suggesting why alternate explanations are inferior.

While there’s a lot of frog-killing academic analytics and needlessly messy scholarly language, this book does offer a vast collection of examples of humor to support and clarify the authors’ points. So, unlike many books on evolutionary and cognitive science, this book does have a built-in light side. WARNING: there’s also a discussion of why some attempts at humor fail. This means one is also subjected to a number of puns, elementary school jokes, and comedic misfires that show the reader why sometimes humor implodes.

The book starts by building a common understanding of what humor is. It turns out that this isn’t simple because people find many different kinds of things funny–from caricatures to wordplay. (And, whatever the initial evolutionary purpose of humor, our species has run with that reward system to places that couldn’t have been readily anticipated.) Next, the authors discuss the many varieties of theories of humor that have been raised. This subject has been studied for some time, and thinkers have suggested that humor’s pleasure derives from a number of different causes from feeling superior to recognizing surprise–just to name a couple. After considering the competition, Hurley et. al. start laying out the basis of a cognitive / evolutionary explanation. In chapter five they describe 20 questions they think must be dealt with, and–in the last chapter (13)–they give their responses as a summation of the book’s main points. Along the way, the authors take on important related questions such as why humor sometimes fails, what others will see as the weakness of their argument, whether a robot could be humorous, and why we laugh. The last point opens another can of worms. Even if one concludes–as the authors have–that humor is a reward system for recognizing incongruities, the question of why there is an advantage to spontaneously announcing that recognition still arises.

There’re are a few graphics in the book, mostly these are cartoons and humorous photos that serve as examples. The book is published by MIT Press, so all the usual scholarly features of notes and citations apply.

I found this book to be thought-provoking, and the plentiful examples of jokes made it enjoyable to read as well. I’d recommend it for those interested in the science of the mind. It’s a bit dry in places for readers looking for light reading about humor.

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BOOK REVIEW: Sleeping, Dreaming, and Dying ed. by Francisco J. Varela

Sleeping, Dreaming, and Dying: An Exploration of ConsciousnessSleeping, Dreaming, and Dying: An Exploration of Consciousness by Dalai Lama XIV
My rating: 4 of 5 stars

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This book is a product of the 4th Mind & Life Institute Conference that took place over five days in October of 1992 in Dharamsala, India. It reads as a narrated description / transcription of the event. The Mind & Life Institute was established as a dialogue between science and Tibetan Buddhism, and is actively supported by His Holiness the Dalai Lama—who is an important figure in the book, both asking questions of the presenters and offering clarification on Tibetan Buddhist thinking on various points. The exact subject of each conference is different, but the mind is a recurring theme. Which makes sense as Tibetan Buddhist practices of the mind are as advanced as any, and it would be of great benefit to understand them better from a scientific perspective.

As the title suggests, this conference (and the book) deal with three topics: sleeping, dreaming, and dying. This may seem like a case of “one of these things doesn’t belong,” but from the Buddhist perspective on consciousness it’s a sensible enough grouping. One can think of it this way, sleeping and dying are points at which consciousness goes bye-bye. [Although, lucid dreamers retain consciousness in REM sleep, and there are unsubstantiated claims of the ability to maintain consciousness in sleep by extremely advanced practitioners.]

There is some front matter (a forward by the Dalai Lama and an editor’s Introduction) and then eight chapters. The first chapter discusses both the Western and Tibetan perspectives on “the self,” what it is, and whether it is [real or illusory.] This topic seems unrelated to the book’s theme, but it’s a way to develop a common understanding for the rest of the discussion. If participants have different views on what a person is, mentally speaking, and what consciousness is, then it’s easy to talk past each other without even realizing it. The second chapter is an overview of what was known about sleep, principally from the perspective of neuroscience (it should be noted that neuroscience was a fairly fledgling term at that time.) The next three chapters (ch. 3, 4, and 5) are about dreaming. The third chapter is a bit unique. The general approach throughout the book is to give the understanding of science and then to compare and contrast that with Buddhist thinking. However, chapter three’s discussion is led by a proponent of psychoanalysis (i.e. the Freudian approach,) which isn’t so scientific, but is a Western philosophical approach. [Chapter one is also heavily philosophical.]

Chapters four and five delve into the subject of lucid dreaming, which is referred to as dream yoga in the Tibetan Buddhist tradition. For me this was the meat of the subject, and it was the reason that I bought the book. Tibetan practices on lucid dreaming are incomparable, and at this point science’s understanding was beginning to blossoming as well.

The last three chapters are on death, and each offers a different character. The first two emphasize Western views, but in different ways. Chapter six outlines the Christian position on death—a theological rather than scientific understanding. Chapter seven explains the medical community’s view of death. This sounds straight forward, but it’s a much more technical subject than one might imagine. What organ has to stop functioning and for how long before one is actually dead. Besides all the coma patient stories, one may be aware of cases historically in which people were discovered to have been buried alive accidentally due to bad calls by doctors. The last chapter is about near-death experiences. This is an area in which there is a great potential for differing views. While science doesn’t deny that people have all sorts of fascinating experiences such as seeing bright lights at the end of “tunnels” and out-of-body experiences, scientists tend to attribute such events to material causes. [Neuroscientists can now induce out-of-body experiences by zapping a specific part of the brain.]

There are graphics in the form of diagrams and tables in the chapters that are most technical (e.g. chapter two and chapter seven,) but they are used sparingly. There’s an appendix that describes the Mind & Life Institute, as well as a glossary that explains both Tibetan and scientific terms. There are also a few pages of end notes that will help one find related material.

The weakness of this book is clearly its age. The Buddhism probably hasn’t changed much, but the science has changed a lot. Since 1992 there has been a revolution in understanding of the brain due to advances in functional Magnetic Resonance Imaging (fMRI) and other technologies.

However, despite the book’s age, there’s a lot of thought-provoking discussion, which offers plenty of room for both scientists and Buddhists to gain a better understanding of the mind and consciousness. I’d recommend this book for anyone interested in dream yoga / lucid dreaming, or—for that matter—death.

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BOOK REVIEW: Hallucinations by Oliver Sacks

HallucinationsHallucinations by Oliver Sacks
My rating: 5 of 5 stars

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Hallucinations are among the most captivating, yet misunderstood, phenomena of the mind. In the popular imagination, they are synonymous with losing one’s grip on reality and are considered evidence of a full-blown psychosis. However, there are a great variety of causes and forms of hallucination, many of which occur among the sane. What Sacks provides in this book is a survey of the forms of hallucination through exploration of cases and anecdotes. To emphasize the point that hallucinations aren’t just for the insane, Sacks doesn’t arrange the book around the idea sanity and insanity. Cases of mental illness are peppered throughout, but there are even more cases of people who fully realize that their hallucinated sensory experiences aren’t real. In fact, he starts with Charles Bonnet Syndrome, hallucinations among blind individuals who are often scared to discuss the phenomena for fear they will be labeled insane even though they know they aren’t really seeing anything. (The brain’s abhorrence of under-stimulation is a recurring theme in the book.)

As mentioned, the approach of the book is to discuss cases of hallucination, and not so much to delve into the research on causes and treatments. This anecdotal approach makes the book readable and offers a unique and intimate insight into hallucination, but it doesn’t drill down into the brain science as much as some might like. This will no doubt be a positive for many, and a negative for others. The author describes several of his own hallucinatory experiences related to drug use, drug withdrawal, and migraine headaches. As I understand it, that level of candor was par for the course for Sacks (though this is the first of his books that I’ve read.) At any rate, his personal experience offers a particularly vivid portrait, and moves the book beyond the sterile feel often found in scientific works.

The book consists of 15 chapters, organized by types / causes of hallucination. After an introduction and the aforementioned chapter on Charles Bonnet Syndrome, there’s a chapter on sensory deprivation hallucinations that’s aptly entitled “the prisoner’s cinema.” Chapters three and four are on olfactory and auditory hallucinations, respectively. The fifth chapter focuses on cases of hallucination experienced by those with Parkinson’s Disease. Chapter six is entitled “Altered States,” but it deals largely with drug-induced hallucinations (it should be pointed out other “altered states” of consciousness, notably sleep, are dealt with in other places), and it’s where Sacks’ personal story begins to be detailed. The next chapter deals with migraine headache related phenomena, and—as the author suffered from such headaches—his story is also imprinted on this chapter.

Chapter eight deals with epilepsy, and, like the Sam Kean book that I reviewed yesterday, is entitled “The Sacred Disease.” That name derives from the fact that those who develop temporal lobe epilepsy are sometimes known to become spontaneously hyper-spiritual in the process. In fact, many scientists now believe that Joan of Arc, Saint Paul (the Apostle), and [for my Indian readers] Ramakrishna were afflicted by this ailment. (Not based on their high degree of spirituality, but rather on accounts of sensory phenomena they were said to have experienced.)

Chapter nine examines cases related to hemianopia—a situation in which one occipital lobe is damaged resulting in a kind of “blindness” in half one’s visual field. While people think of blindness as being a problem with the eyes, it’s possible to have perfectly good eyes and optic nerves and be blind (on a conscious level) due to brain’s incapacity to process the input it is receiving. (Incidentally, in his book “Subliminal” Leonard Mlodinow describes engrossing cases of people who were blind due to brain damage, but–owing to a redundant subconscious systems–they could walk around without running into obstacles.)

Chapter ten describes cases associated with delirium, a common cause of hallucinations that can be the side-effect of any number of physical problems including fever, blood sugar imbalance, and liver failure.

The next two chapters are about sleep-related sensory imaginings. Chapter eleven details cases of hypnagogic and hypnopompic imagery, which are what we see as we are on the edge of falling asleep or awaking, respectively. Hypnagogic hallucinations may be as simple as shifting shapes, or more elaborate. If you’ve gotten this far in the book without any experience that corresponds to what Sack’s is describing, you’ll almost certainly have some experience with hypnagogic images. If not, you should stop consciously counting sheep (or whatever other daydreaming you do as you fall asleep) and just watch what your mind projects. You’ll know it when you see it because you won’t be able to control the imagery (though you can distract over it with conscious thought) and—as in dreams—it probably won’t make a lick of sense. Hypnopompic images are quite different, less widely experienced, and often more disconcerting. Chapter twelve presents cases dealing with narcolepsy (random spontaneous falling asleep) and sleep paralysis, a common experience on the trailing edge of sleep in which one can’t move and which often comes with imagined sensations of a more nefarious variety—hence the widespread lore of night hags and the like.

Chapter thirteen scrutinizes cases that are associated with traumatic events from one’s past. These can involve sightings of ghosts of departed loved ones or replays (flashbacks) of the traumatizing event. This chapter, in a discussion of dissociation, also foreshadows the phenomena of out-of-body (OOB) experience that’s dealt with in more detail in chapter 14. The theme of that penultimate chapter is seeing oneself. Beyond OOB, it deals with a variety of hallucinations of oneself, including those in which one’s body appears distorted (i.e. so-called “Alice in Wonderland” Syndrome.)

The last chapter discusses hallucinations in the tactile domain, and, specifically, the most widely investigated form of these phenomena—the phantom limb. Phantom limb syndrome is experienced by amputees, many of whom can still feel the lost limb. This has resulted in nightmarish scenarios in which an awaking patient complains of an itch on the sole of his or her foot only to be shown that they have no legs from the knee down.

There are no graphics in the book, but, because it’s based around cases, it doesn’t need them for clarification of complex ideas. There are footnotes, as well as a bibliography.

I found this book to be absorbing, and I learned a great deal from it. I’d recommend it for anyone who seeks greater insight into hallucinations or unusual mental phenomena more generally.

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BOOK REVIEW: Remember When by Scientific American

Remember When?Remember When? by Scientific American
My rating: 3 of 5 stars

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This book is part of a series put out by Scientific American magazine that collects articles on a specific topic of interest, in this case memory.

I’ll get straight to the point:

Pros: The style is readable and concise, and the book is well-organized and full of fascinating tidbits [Note: when I say “well-organized,” it’s clearly a collection of past articles of various types, and so there are a mix of short pieces, long-ish pieces, and an interview or two. However, these inconsistent “chapters” are placed in sections in a logical fashion. Furthermore, I expected much more repetitiveness from this type of collection than there was.]

Cons: First, the Kindle version that I read had lots of typos, and they were systematic typos. [Fun fact, considering this is a book on memory. My memory was that this book had typos throughout, but when I looked back through to review it, I noticed it was only some chapters, but—influentially—including the last.] By “systematic typos” I mean the same characters were replaced throughout with the wrong character(s.) While this isn’t the kind of typo that leads to confusion, it’s the kind that makes one say, “Did you really not have anyone look this over after it was machine-converted, you lazy …?” Second, because it’s a collection of magazine articles, one might see a piece from recent years right next to one from the 1990’s. This wouldn’t necessarily be anything to concern one, and might even be a positive. However, once one has seen the aforementioned laziness, it makes one wonder whether half the information isn’t outdated.

The 30 pieces that make up this collection are divided among seven sections to provide a logical organization and progression of the material.

Section 1 explains what memory is and why it seems to work so well in some cases but so poorly in others.

The second section explores the neuroscience of memory and how the brain turns experiences into memories.

Section 3 offers insight into the connection between learning and memory. This describes some fascinating discoveries on the importance of white matter (not the cells that store the memories, but the ones that connect those that do) and the role of sleep.

Section 4 is where it really gets interesting. This section investigates amnesia, hypnosis, and déjà vu.

The fifth section considers a few of the many ways that memory can fail. Besides discussing how false memories are created and attempts to erase traumatic memories, the section also explores the connection between emotion and memory.

Section 6 answers why memory gets worse with age, with discussion of a few of the methods for reducing this tendency.

The last section describes some of the methods used to improve memory. Here, I will offer the same warning as I did for the last review I did on a book of this topic (i.e. “Memory: A Very Short Introduction”), which is to say that if this is your primary purpose for buying the book, you probably want to look for a more specialized book. (Where the AVSI book was a cursory summation of proven techniques, this one focuses on the science of the moment [e.g. experimental medicines and blueberries] and not well-established techniques.)

The graphics are those from the magazine, and, therefore, tend to be detailed and “slick.” This can be a disadvantage when reading on a base model Kindle, such as mine. Even with the graphics expanded, the font is tiny and hard to read. Also, the color graphics on a black-and-white device would likely be clearer as simple line diagrams rather than complex computer renderings. However, most of the articles have little to no graphics, and so it’s not a problem that comes up with great frequency.

I’ll compare this book with the Oxford University Press “A Very Short Introduction” on the same topic that I just reviewed because they are clear competitors. This book covers a broader range of topics, including some intriguing ones such as: hypnosis and memory, déjà vu, the role of fitness on memory, and more detailed information about the connection between sleep and memory. In other words, this book is full of the latest (at the time) research of a nature intended to attract popular science magazine readers. However, the AVSI book is more concisely arranged to get a neophyte up to speed on memory without offering extraneous information. I suspect the AVSI book will age better. The Scientific American book has a fair amount of current events reporting that may be overturned (if some of it hasn’t already been) by subsequent research. The AVSI book was much more easily readable on my Kindle.

I found this book to be interesting and informative—though not without significant flaws. Overall, I’d recommend it for those wanting to learn about the research of recent decades on memory.

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BOOK REVIEW: Memory: A Very Short Introduction by Jonathan K. Foster

Memory: A Very Short IntroductionMemory: A Very Short Introduction by Jonathan K. Foster
My rating: 4 of 5 stars

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Everything we think, do, or say relies upon–or is influenced by–memory, and yet our memories offer a much lower fidelity and more highly corruptible recording than we tend to think. Even those events that lead to “flashbulb” memory (i.e. JFK’s assassination, 9-11 terror attacks, or the 3-11 tsunami in Japan) aren’t remembered particularly well. You may remember where you were and what you were doing in broad brushstrokes, but you probably wouldn’t test well on the actual details of the event. Old memories are constantly over-lain with a corresponding loss of accuracy. This brief introduction explains the basics of how memory works, and—as importantly—how it doesn’t.

The book is part of Oxford University Press’s “A Very Short Introduction” [AVSI] series, and it follows that approach. It’s under 150 pages, and written for someone looking for a “ground-up” explanation of the subject. It has minimal ancillary material, just a couple of pages of “Further Reading” after the book’s seven chapters. There are a few black-and-white graphics throughout the book, a combination of photos and diagrams.

Chapter 1 introduces the reader to what memory is and what it isn’t. One learns about the three-part process of memory (encoding, storage, and retrieval), an idea which will be important throughout the rest of the book because these stages mirror the structure of memory failures and the means to build a better memory.

Chapter 2 explores the landscape of memory, which is a great deal more complex than the short-term v long-term dichotomy that we all learned in school. There’s working memory, procedural memory, semantic memory, and episodic memory.

In chapter 3, the reader learns about how memories are retrieved or recalled and the immense power of context in the process.

Chapter 4 explains the many ways in which memory fails us from simple forgetting to false or corrupted memories. We learn how being knowledgeable improves our memory, but also how it can lead us into error.

The next chapter advances the same theme by looking at amnesia. While amnesia is one of Hollywood’s favorite plot devices, the subject is generally poorly understood because of the simplified and myth-filled nature of the entertainment form of the affliction. Here you’ll learn what one isn’t seeing in the soap operas.

Chapter 6 is entitled the “The Seven Ages of Man” and it looks at memory over the lifespan, with particular attention to the ends of the spectrum. On one end, why do most of us remember nothing from our first few years—and what we do remember is often quiet suspect (false memories from hearing stories about one’s infancy?) At the other end of the spectrum, we are all well aware of how memory degrades with age—particularly those of us buying and reading books on memory. However, one learns that it’s a great oversimplification. While our episodic (event) memory degrades, some elements of memory are quite robust to aging.

The last chapter discusses what does (and to a small degree, what doesn’t) work with respect to improving one’s memory. As it’s a short chapter in a short book, this should be taken as an outline of the subject. If this is one’s main purpose for seeking out a book on memory, one may want to keep looking.

At this point, I’ve read and reviewed many books in the AVSI series, and I found this one to be typical. It’s not among the most engaging of the titles in the series, but it gets the central concepts across in a way that is readable and soundly organized. Because there’s a lot of definitional and conceptual material to cover, there’s not a lot of room for the narrative approach, which isn’t to say that there aren’t brief descriptions of key cases here and there.

I’d recommend this book for someone wanting an overview of the subject of memory.

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My Vipassana 10-Day Experience: No Solidified Gross Sensations, No Gain

woman-pointing-at-herself6

It’s 4:45 in the morning and I’ve been sitting on my cushion at the Dhamma Setu Vipassana Meditation Center in Chennai, India for a quarter-hour. It’s day one, and I’m observing my breath as it comes in and out through my nostrils—at least for seconds to minutes at a time before I have to coral my mind back from some random tangent. This breath exercise (ānāpāna-sati), I will soon learn, is a preparatory exercise used to reign in the mind enough so that actual Vipassana meditation can be introduced on the middle of the fourth day. In eleven days, I’ll be in the closing session of the course.

 

There are several approaches to Vipassana meditation taught throughout the balance of the course, but the gist is the same for all of them. One rotates one’s awareness throughout the body systematically observing sensations. As one does this, one works toward equanimity, a calm and quiet state of mind in which one neither covets pleasurable sensations nor shuns unpleasant sensations. The idea is to train the deepest level of the mind to not habitually lunge one toward pleasure or away from displeasure.  (FYI: displeasure = pain.  At least for a novice, such as myself, there is a fair amount of pain involved in sitting still for such long periods. It’s generally referred to a solidified gross sensation to differentiate it from the uniform and subtle sensations that one may feel in the parts of the body that aren’t in agony. I joke about it here, but there’s good reason to train oneself to not think in terms of pain, and the negative connotation the word evokes.)

 

At that course’s beginning, I knew a little about Vipassana from research, including reading the book “Equanimous Mind,” one man’s account of his experience in the course. For example, I knew that most people who quit, leave either on day two or day six. At the time, I didn’t know why, but would learn soon enough. It’s nothing about those two days, but rather the days that precede them. Day 1 seems to last forever, and it’s easy enough to discern why it might give students trouble. When one gets through day 1, an optimist says “yeah, I can do this because I’m through the first day” but a pessimist says, “I just barely made it, I can’t do this.” Day 5 is when the strong commitment (adhiţţhāna) is added, which means that one has three one hour sessions during which one is to commit to not changing one’s posture for the whole session. No opening eyes, but—more challengingly—no unfolding /refolding one’s legs.  This commitment to not changing posture steps up the difficulty of the course to another level.

 

It should be noted that one can opt to sit in a chair. However, that introduces an entirely new challenge—drowsiness. During the long sessions, when I’d get up to walk the lymphatic fluid out of my legs, there were usually two people in a straight-spined meditative position and six to eight who looked to be sound asleep.  (Drowsiness was one reason that I didn’t sit in a chair. I’m prone to get sleepy enough during meditation, especially in a complete absence of caffeine. The other reason was that I’ve not found chairs to be more comfortable for long-sits of meditation. Once your bony parts start pressing into the chair, one begins to wish one was cross-legged on a cushion. One can make the chair more comfortable by placing padding wherever it’s uncomfortable, but eventually one has a virtual La-Z-boy and the drowsiness factor becomes all the more problematic.)

 

With respect to these strong commitment (adhiţţhāna) sessions, I didn’t make it the full hour without moving on the fifth day–or any day until day 10, in fact. However, I don’t count this as a failure, because I did give it my all. I say that based on the endorphin-induced euphoria, simple hallucinations, and a proprioceptive form of Alice-in-Wonderland Syndrome that I experienced from toughing it out past mere discomfort. I’ll get to what that all means, but for now suffice it to say these happenings were symptomatic of sitting still through the period in which the pain came, grew, and then started to numb out.

 

In fact, these trippy experiences may, sadly, have been one reason why it never occurred to me to want to leave around day six. While I tried not to get caught up in them, these experiences were fascinating. I could see why day 2 presents a challenge to so many, but day 6 was a hoot, relatively speaking. The second most challenging day for me was day 8, because I’d reached a plateau but I didn’t yet feel myself in the homestretch. But by day 8, who’s going to leave? You’ve gutted it out that long, and are almost done. For those concerned about whether they can make it to the end, I can honestly say that I never seriously considered quitting. It’s not that hard to get through the 10 days, as long as one isn’t too addicted to comfort and communication.  That said, I wouldn’t offer a wholesale recommendation of the course as many do, but rather recommend it on a case-by-case basis. If you’ve done no meditation whatsoever, this is the meditative equivalent of going from couch-sitting to training for an ultra-marathon overnight. If you think you can’t get through nine days of silence–without no phones or books, maybe you can’t, and you should probably reevaluate your life.

 

I mentioned some of the unusual experiences that I witnessed during the course, and I’ll get into that a bit more. I should preface this by saying that one shouldn’t get caught up in these trippy happenings for reasons I’ll elaborate upon below, but they may happen so it’s worth being ready for them. Here’s a list of the unusual events I experienced:

 

-Extreme relaxation / lethargy: a little off topic, but between sessions on day 1, I noticed that I couldn’t be bothered to shoo away a fly that kept buzzing around my head with random touch downs. I don’t know how long I walked with the fly buzzing over me before it struck me that this was unusual. This was before Vipassana proper had been introduced, so it didn’t yet seem apropos.

 

-Olfactory hallucination / vivid scents: on day 2 I witnessed a distinct smell from my elementary school days (i.e. a mix of cleaning solution and milk cartons?) that theoretically could have originated at the Dhamma Setu, but which was quite probably an olfactory hallucination. It was short-lived and I never smelt it again. I did later experience an intense smell of flowers inside the meditation hall. This may well have been an actual scent as there were many blooming flowers there. These vivid scents were also short-lived.

 

-Endorphin-Induced Euphoria: on days 4 and 5, I experienced this as an almost intoxicated feeling. [Endorphins are the body’s indigenous pain-killers.] As drunks find unfunny things funny, so did I—including the pain in my legs and back. I wondered if anyone would be distracted by my occasional giggle-fits, but I think they were much more subdued than I suspected from my vantage point. Just like I’ve thought I was talking in my sleep in the past, only to be told that it sounded more like faint and indistinct whimpering. On day 6, I experienced a more sophisticated (not drunk-like) form of euphoria that expressed itself as a feeling of “oneness.” I’ve read about feelings of oneness being attributed to a form of transient hypo-frontality—i.e. a shutting down of the parts of the prefrontal cortex (PFC) that track the self / other distinction. There may have been more happening than endorphins (and other neurotransmitters) involved in that happening.

 

-Lifting sensation: This was the single most awe-inspiring experience that I was party to. For those unfamiliar with seated meditation, one of one’s chief enemies in long meditation sessions is a proclivity to slump. Slumping translates into agonizing back pain and labored breathing. So whenever one catches oneself slumping, one has to straighten one’s back. [If you wonder why a meditator would pretzel up his or her legs in full lotus (padmasana), the alignment of one’s legs helps one maintain a straight spine.] At any rate, on day 6 I experienced the feeling that I was being lifted up straight and it became effortless to maintain a straight back for the rest of that session—as if an outside force were doing the work. This lifting sensation wasn’t like being lifted by a person, but rather like the action of a “tractor beam” from the world of sci-fi. While I have some inkling of the causes of much of what I experienced based on the science of the human body, explanation of this “lift” is harder to come by. I did read an account in Oliver Sacks’ “Hallucinations” by a woman who suffered from migraine-induced hallucinations and Alice-in-Wonderland Syndrome that was a spot-on description of what I experienced as well.

 

-“Visual” [closed-eye] simple hallucinations: I didn’t experience anything even close to the what people usually think of as a hallucination—that is, there was nothing that could be confused with reality. I wouldn’t have even known to call these images hallucinations if I hadn’t been reading the aforementioned Oliver Sacks’ book. Mine were quite close to what are described as hypnogogic (falling asleep) hallucinations in the Sacks’ book. This makes sense. While I wasn’t drowsy at the time, my brain was probably in a pretty similar state of relaxation. Mostly, these were moving shapes that formed and dissipated in a field of black-fringed purple.  On day 7, there were more complete visuals—mostly of partial faces, usually with mouths wide open. I took this as my subconscious mind’s comment on the noble silence. (On the noble silence: from about 6pm on day 0 [orientation afternoon] until the morning of day 10, one isn’t allowed to talk or in any way interact with / acknowledge anyone except to direct questions to the teacher or staff. Whether one has questions or not, one will speak at least a few words to the teacher every day or two when he / she reviews one’s progress. For some, this may be the single biggest challenge of the course, but I’m a hardcore introvert and could do ten days of silence standing on my head.)

 

-Tactile Alice-in-Wonderland Syndrome: Alice in Wonderland Syndrome usually refers to a visual form of hallucination in which things appear a great deal taller, smaller, closer, or farther than they actually are. What I experienced was a great deal less whacky and traumatic than that. With eyes closed, I felt a distortion of the size and shape of my arms. Sometimes my arms felt like they were six-foot long from deltoid to fingertips, and sometimes the same points seemed to lie a foot and a half apart. Needless to say, those are both distortions of the actual length of my arms.

 

-Inexplicable Beatles’ Music: On day 8 my mind bombarded me with music from the Beatles for a little while. In particular I heard “Sgt Pepper’s Lonely Hearts Club Band”, “Lucy in the Sky with Diamonds”, and “All You Need is Love,” or parts thereof, in high fidelity. Now, while this is fine music, it’s not music that I’ve listened to recently nor have I listened to that album a great deal. When I was growing up, there was a copy of “Sgt Pepper’s…” at home, but I’ve only periodically heard these songs on the radio since. The experience was monotonous because only the parts that I knew the words to (i.e. the choruses) replayed on a loop, but the music and voices were crystal clear as if I were listening to the album.  Given the lack of personal relevance, I can only imagine that my subconscious thought this is the kind of music a person meditating would like to hear.

 

As I said, by about day 8 I’d hit a plateau. The aforementioned odd experiences were petering out, particularly when I did as I was supposed to do and gently returned my mind to the task at hand. Yet, the practice wasn’t getting any easier or smoother. I still had the same dead spots—areas that I could observe for extended periods without even the subtlest of sensations—and I still had growing pain zones in my back and legs—i.e. starting from isolated pains, the pain would become increasingly diffuse and of ill-defined boundaries—but often no less painful.

 

Now I’ll explain my comment about not allowing oneself to become captivated by the trippy experiences. If one seeks after these experiences, not only is one missing out on the value of the practice, one is actually moving in the wrong direction by coveting an experience while impulsive craving is what one is training oneself away from through Vipassana meditation. Beyond this, seeking out such experiences is likely to be frustrating because they are products of the subconscious mind and physiological processes that are beyond conscious control. They happen when they happen, on your body’s schedule. (Note: Some people think of these as spiritual phenomena. I don’t, but—for those who do—they still won’t happen on your schedule. Ostensibly, they’ll happen on some deity’s—presumably rather tight–schedule. And—divine as they may be—they are still a distraction from the objective of the practice—and that’s not my opinion, but according to the teachers of the tradition, starting with Gautama Buddha and through to S.N. Goenka.)

 

So when one experiences such phenomena, one should do the same as one always does in meditation, quietly and non-judgementally return one’s mind to the object of awareness—in this case, systematically witnessing the sensations on one’s body. I won’t say that this isn’t a challenge. It is, because your mind is presenting you with something fascinating and new, and you’re asking it to return to a task that has become rather mundane over hours and days of practice. It should be noted, I would broadly categorize the phenomena that I experienced into two slots, one of which is things the brain does to cope with a lack of external stimulation. (The other being, things the body does to cope with unrelenting pain.) So it takes some discipline, but one should remind oneself—as one is frequently reminded during the discourses—that you are there to give the Vipassana approach a fair trial, and as fascinating as these sideshows are they are a distraction from the practice.

 

That said, these things will happen and their unusual nature may make them points of concern or confusion, and so I’ll discuss them a bit more. I have a theory about the cause of the euphoric experiences, but it requires a little clarification and background. What makes Vipassana challenging for a new practitioner—at least for me— is that in systematically rotating one’s awareness to observe sensations, one has to ignore areas that are screaming with pain while carefully running one’s attention through areas that seem completely devoid of sensation. This requires quieting the mind and especially not feeding the anxiety about one’s pain and discomfort—hence, developing equanimity (steadiness of mind.) Sitting still for an hour at a time, lymphatic fluid piles up in your lower extremities (no pump in the lymphatic system but the one of movement), over time blood circulation may be inhibited, and this lack of circulation has ramifications for the cells not being adequately nourished. So your body notices this fluid build-up (a relatively minor concern, easily rectifiable, and which will take a while to be a serious problem for most people) and sends you some pain sensations to spur you to get up and move about. When you don’t get up and walk, it turns up the discomfort disproportionate to what’s happening with your body. You still ignore it. Eventually, your body starts to think maybe a boulder fell on your legs and you’re in shock (the conscious and unconscious minds don’t talk as much as you might think, and—even if they do—let’s face it, at least the conscious mind is a big, fat liar.) It’s at this point that your body starts to emit some feel-good chemicals. (I refer to “endorphin-induced euphoria,” but it’s more extensive than natural painkillers. In reading up on the subject, I noted references to serotonin and even melatonin (yes, the skin color chemical) in addition to beta-endorphins. I wouldn’t be surprised if there was some dopamine—a reward / feel good chemical—in the mix as well. Hence, the euphoria.

 

I don’t think it’s necessary to get into the hallucinations and other effects that the mind creates in order to cope with the lack of sensory input. This is a well-studied area, and there’s been a lot written on how the mind hates the dark and the quiet over extended periods. I would recommend the aforementioned book by Oliver Sacks on hallucinations as a case in point.

 

Saving the most crucial question for last, was it worth it? In his discourses, S.N. Goenka offers three criteria by which one might evaluate whether Vipassana is worth practicing. While all three are sound criteria, I’ll focus on just one of these, which is really the bottom-line, and that’s whether it makes an improvement in one’s life. That is, does one start to be less prone to impulsively react to craving and aversion and become more equanimous of mind?

 

On this, I’ll have to say that the jury is still out. Many come out of the 10-day course calling it life-changing. I’d say that it was beneficial because I learned a meditative technique that has a sound internal logic (even if one doesn’t believe every aspect of the mechanism by which it is said to work by Buddhists—which I don’t), an established track record of benefit for many, and the feel that it’s benefiting one. However, I’m still evaluating the approach. I’ve been doing Vipassana meditation twice a day with morning and evening affirmations. Let’s face it, 10-days isn’t a long time to overhaul one’s deeply ingrained modes of operation—even sitting in meditation for 10 hours a day. I’m optimistic, and the practice sure doesn’t hurt—except for those solidified gross sensations, they hurt.

 

BOOK REVIEW: Consciousness by Susan Blackmore

Consciousness: A Very Short IntroductionConsciousness: A Very Short Introduction by Susan Blackmore
My rating: 4 of 5 stars

Amazon page

 

Consciousness remains one of the least understood phenomena of our world. It’s also one of the most intriguing subjects, and fascination with it has spurred debate both between science and religion and within science. While science has been moving toward the belief that consciousness is rooted in the brain, there remain many important questions to be answered. Of course, historically, it wasn’t at all common to think of consciousness as arising from the action of a material object (e.g. the human brain), it was beyond humanity’s intellectual capacity to comprehend how something as grand as consciousness could arise from a 1.2kg (<3lb) organ. Consciousness was intertwined with ideas of “the soul”—a non-material self-ness.

So it is that Blackmore takes on a shadowy subject in which questions are as likely to lead to more questions as they are answers. She lays out the arguments between scholars of science and philosophy as to what exactly consciousness is, how it operates, and how important it is or isn’t.

The book consists of eight chapters. The first chapter attempts to define consciousness and discusses the degree to which there is a lack of consensus on the subject. In doing so, it outlines why consciousness is such an elusive subject.

Chapter two describes the attempt to find correlates of consciousness in the brain, and it describes some of the case of brain damage that support the notion that consciousness is a product of the brain. Many beliefs of duality (i.e. the idea that body and mind are separate) have been in decline because of cases in which brain damage is specifically linked to changes in consciousness. Consider life-long love being uprooted by a scalpel.

Chapter three deals with a number of topics related to time and space, such as whether consciousness lags behind reality. That sounds ridiculous. However, remember that we experience the world from inside the frame of reference of consciousness.

Chapter four examines a number of illusions to which our conscious minds are systematically subject. We have a number of blind spots, many of which result from the fact that a great deal of what the brain does, it does without letting the conscious mind in on events.

In the fifth chapter, the author presents the link between consciousness and perception of self. It has long been taken for granted by most of the world that there is some soul that exists beyond the body, and it’s in this chapter that the author reflects upon whether this is an illusion or not.

Chapter six covers a topic that is integrally linked to consciousness and the idea of self, and that is free will. Free will is another notion that humanity historically took for granted that is coming under fire in the face of our increasing understanding of the brain. Current scientific evidence suggests that free will as we perceive it (i.e. thinking things through consciously and then making a decision at a conscious level) is an illusion.

Chapter seven is about the many altered states of consciousness, including: dreaming, drug-induced effects, meditation, and some of the widely reported experiences that seem to involve separation of consciousness from body (e.g. out-of-body and near-death experiences.)

Chapter eight ponders the evolutionary advantage offered by consciousness (especially if a major part of what we think we use our conscious minds for is an illusion.) One thing is clear; evolution doesn’t hand out vast and complex advances in capability if they don’t serve to make one more likely to survive to procreate. However, could consciousness—majestic as it may seem—be a mere side-effect of a big brain developed to facilitate survival in a world in which we weren’t the strongest, fastest, or most athletic creatures by a long shot?

The book uses a wide variety of black-and-white graphics including cartoons, technical diagrams, and photographs. These graphics help to communicate important ideas and are more likely to do so with levity than technical complexity. The book is readable, considering the challenging topic.

I’d recommend this book for those interested in an overview of the state of understanding and debate about what consciousness is.

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