Showing posts with label consciousness. Show all posts
Showing posts with label consciousness. Show all posts

Sunday, September 5, 2010

Brains! Part 1

*these ideas are not my own, except the part about the zombies

Every idea I've ever had belonged to someone else first.
                                                    -James T. Hellcat

In his book How the Mind Works, Steven Pinker wrote, "...the mind is a naturally selected computer." I like this metaphor. For one, I'm a Darwinist/Dawkinsist, so the idea that the brain has evolved to be the crazy thinking machine it is is not so surprising/terrifying, & for another, the brain as data processor seems to me completely plausible given its nature.

What do I mean by its nature? Well, the brain has several data processing functions. It is a counting machine, a language processor, it has an expandable memory, and it is capable of crashing, to name a few. For more on the brain: http://pinker.wjh.harvard.edu/articles/media/1997_09_naturalhistory.html

But it's the misfirings of the brain that I really want to talk about. The other day I experienced a classic blunder (in Statistics, a Type 1 error/false positive). I was sitting on my couch enjoying a visit with a friend, when I looked to my left & noticed my cat hunkered down beside the couch, no doubt stalking a fly or spider or a bit of fluff. I then looked up & saw that the cat was sprawled out on the dining table. A quick double-take back to 'the cat' next to the couch & I realized that it was actually a black bag I had earlier set on the floor. Duh!

Called pareidolia or simulacra, this 'uncanny' phenomenon occurs when the brain fills in false information & recognizes a vague image as a specific one. Sort of like the mind's auto-complete, if you will. Human self-delusion is fascinating, don't you think?! Pareidolia (not aliens, God, ghosts, etc.) is also to blame when we insist that we 'recognize' a familiar face, only to realize upon looking closer that it is not at all the person we had thought, & it is what causes us to see faces on random objects such as the moon or a slice of toast. It also makes us susceptible to the power of illusion/magic.

Traditionally (& still today?!), these misperceptions have most often been attributed to supernatural beings/occurrences. But it's just your mind playing tricks on you ... literally! So why do we insist on perpetuating these supernatural myths? Evolution, baby. Our minds have evolved to take on some pretty herculean tasks, so it makes sense that the brain would try to make things easier on itself, say perhaps by switching off/turning down consciousness when it is not directly necessary in order to accomplish the task at hand. ie. making sense of the black lump protruding from behind the couch. That black lump could have been almost anything, so in order to save time & costly cell activity, my brain made a guess based on a number of things (previous experience/memory, what I imagine it to be, & what I hope it is). So why DID I see my cat & not a dog, or a sweater, or a panther, or a black hole, or the black bag that it really was? 

I'll quote Mr. Pinker again, if only because he says things so much more learnedly & eloquently than I (he's the Psychologist, Cognitive Scientist, Linguist, & I'm the English major): "...the mind is a system of organs of computation that enabled our ancestors to survive and reproduce in the physical and social worlds in which our species spent most of its evolutionary history" (Pinker 2005).

1. Our brains are still evolving & are, therefore, not without imperfections.
2. Our social & physical worlds have evolved much faster than our brain's have.

While the costs of making a mistake in perception may be different (but not less) in the contemporary social & physical worlds, our brains are still hardwired to be on the lookout for both the things we know that are safe & the things we don't that are potential dangers. It may be nothing more than a perceptual error when we misinterpret vague images, but it pays in the long run. The brain's auto-complete function enables us to quickly locate our mates/family in a jungle of faces, locate food & shelter sources & avoid danger. Only sometimes, the brain gets it wrong (like Google?!). I am familiar with the sight of my cat (I've had her for about 6 months now), I do not own a dog, the particular shape & colour of the bag was consistent with that of my cat's (rather large) posterior, I completely forgot that I had set the bag there myself a few hours earlier, & there are no panthers or black holes (that I know of) in my home, so it makes sense that I would infer that the shape I saw was my cat, Vampira. Human perception is a subjective approximation/guesstimation rather than a fundamental, objective truth.  

Everything is a lie.

...

The other day I wrote about my brain. Specifically, how superior I think it is. You may dismiss me as an egomaniac, and to a certain extent, you'd be right. I am genetically hardwired to be selfish (or rather, my genes are). But that does not make me a selfish (and therefore, according to some, bad) human being. As intelligent as I am, as you are, as anyone can ever be (and trust me that person would be a gazillion billion times smarter than me & you put together), there is so much that we don't know, it makes what we do know seem infinitesimal. I may be gifted according to some subjective standardized test, but I am far from being a know-it-all. I am no better (or worse) than the lot of humankind.

In essence, when it comes to the human brain, degrees of intelligence are irrelevant. We're all pretty damn smart (in comparison to protozoa, say) or stupid (compared to superhuman robots, which thankfully, don't exist). Think about it. From an evolutionary perspective, we aren't that much more evolved than primitive man/woman (which explains a lot about our current disordered world!). I may be an intelligent being, but most of the time I find myself shambling about like some ravenous, slobbering zombie. 

And like I always say, I am a self-portrait of you.

...

The human brain, with all of its capabilities, its imperfections, & its limitations, truly amazes & confounds me. It is not only the source of, but quite possibly, the best example of the 'uncanny' there is.

Which brings me to zombies. The words 'uncanny' & 'zombie' are practically synonymous in my world.

I really like zombies. They are my favourite monsters, despite my theory that zombies, vampires, werewolves, Frankenstein, golem, ghosts, demons, mythological monsters such as Medusa & Hydra, succubi, human monsters--serial killers/cannibalists/necrophiliacs etc.--even the Devil himself, are all incarnations of the same thing: the inherent darkness within the human brain. Zombies aren't real, but they are useful as a metaphor for the things we don't understand/like/are afraid of about ourselves. It is much easier to create an 'other' to bear the weight of our troubles, one who is capable of acting out all of the nastiness we can imagine, than it is to accept that we ourselves ARE monsters. Lest you think I am being incontrovertibly pessimistic about humankind (and truthfully, most of the time I am), I also believe that our brains have advanced far enough for us to accept this & move on. We are not merely devils, we are angels, too.

And, although logically impossible, zombies are, nonetheless, quite frightening to anyone with a brain.

...

Welcome to the Age of the Zombie.

...mmmmm brains!

...

The Computation
John Donne

For my first twenty years, since yesterday,
I scarce believed thou couldst be gone away;
For forty more I fed on favours past, 
And forty on hopes that thou wouldst they might last;
Tears drown'd one hundred, and sighs blew out two;
A thousand, I did neither think nor do,
Or not divide, all being one thought of you;
Or in a thousand more, forgot that too.
Yet call not this long life ; but think that I
Am, by being dead, immortal; can ghosts die ? 

...


Sources


Carroll, Robert T. http://www.skepdic.com/pareidol.html
Chalmers, David. http://consc.net/zombies.html
Dennett, Daniel C. http://ase.tufts.edu/cogstud/papers/unzombie.htm
Pinker, Steven. http://pinker.wjh.harvard.edu/articles/papers/So_How_Does_The_Mind_Work.pdf
___________. http://pinker.wjh.harvard.edu/articles/media/1997_09_naturalhistory.html

Monday, August 2, 2010

Don't let them bury me, I'm not dead!

Today is Wes Craven's 71st birthday. And what better way to celebrate than with spiders, snakes, psychotropic drugs, Haitian voodoo, premature burial ...


& zombies?!

One of my favourites from the 80's--a sleek, subtle(r), underrated thriller courtesy of the gore-master himself--I can't even count how many times I've seen this movie:

Loosely based on ethnobotanist Wade Davis's non-fiction account of his investigations into Haitian zombification, The Serpent and the Rainbow (1988) stars Bill Pullman as the ethnobotanist/anthropologist Dr. Dennis Alan, and also features Cathy Tyson, Zakes Mokae, Paul Winfield & a pre-CSI Paul Guilfoyle (he's so young & cute!).

For those of you who enjoy this sort of thing, here is the American trailer:


...

Well shot & decently acted, this movie practically screams das Unheimliche. Pullman is quite believable as the relentless doctor, however, south-afrikaner Zakes Mokae steals the show for me as creepy witch doctor/bokor Dargent Peytraud.

Just look at this face:


...

I first saw The Serpent and the Rainbow around the time it was released & not surprisingly, it still resonates with me today, some 20 odd years later! This is one of those movies that sticks with you.

The dream sequences in this heavily atmospheric & somewhat disjointed--but never too disjointed--film are quite literally nightmarish. The effects are realistic. The setting is haunting & lush. And the subject matter—zombification—well, everyone who knows me knows how I feel about zombies!

Good enough to eat ... you.
Of all the movie monsters out there--and there are so so many--the zombie is perhaps the most frightening. Why? A loaded question, but I think it stems from the fact that zombies are most like us. In fact, they are us. Only an us that is 'un'conscious, dead to the world.

While the zombies of our imagination are typically (thanks mostly to Romero) portrayed as flesh-eaters, real zombies prove to be much less opportunistic & dangerous. The zombie originated in Haitian folklore (something Craven definitely kept in mind). There have been hundreds of (mostly unsubstantiated) accounts of men & women returning from the grave after allegedly being poisoned by some kind of drug that rendered them 'lifeless,' yet years of research has only turned up a few toxic fish-based powders that mimic the effects of anaesthesia. When the powder wears off, these 'zombies' usually return to their homes to 'haunt' their families, or as is suggested in the movie, are dug up by some evil houngan's henchmen & put to work. Like Christophe (played by Conrad Roberts, who coincidentally had a part in an episode of CSI).

*Spoiler alert*

In our film, the powder is blown onto our hero's face and he soon finds himself paralyzed but completely conscious of his surroundings. Here's where things get tricky. While under the influence of this drug, he has all sorts of hallucinations, including visions of being buried alive! And the viewer has the pleasure/pain of experiencing it right alongside him through a series of clever POV shots. In this case, the shots are quite effective. (Another director who successfully uses a similar type of POV shot is Aldo Lado in La Corta Notte Delle Bambole di Vetro aka Short Night of Glass Dolls (1971)).

Forgive me for the seemingly unrelated intrusion, but if you have seen both movies you will know what I mean. And besides, it gives me the opportunity to show you the killer cover: 


Dig?

...

But now, back to the zombies.

Although they aren't dangerous in the same way modern brain-slurping gut-munching talking running thinking zombies are, traditional zombies aren't any less sinister. The ramifications of zombification are obvious: good ol' fashioned mind control. What better way to force someone to bend to your will than to remove all traces of (self)consciousness from his/her mind!

Sidebar: Governments have long used prescription drugs & alcohol to 'legally' exert mind control over their public (but that is a subject for another kind of blog!).

...

(It always comes back to mind control, doesn't it?)

If you like your zombie movies crunchy & bloody & not the least bit serious, don't bother with The Serpent and the Rainbow. Although there are plenty of scares, Craven is restrained here & so are his zombies. Which brings me to the point.

(Does there really have to be a point?)

No. But it's almost always where things start to get weird.

*Another Spoiler alert*

Dr. Alan enters a strange world when he arrives in Haiti. Everything about the place is contrary to what he knows/thinks he knows. He is arrested several times by the police, framed for murder, nearly castrated, beaten, sent home at gunpoint (but not without his prize) only to return to Haiti to be drugged & subsequently buried alive & unearthed/brought back from the dead (if only in his mind). And finally, after defeating the bad guy, our battered hero emerges from the battle triumphant. (Sounds like a story I once read ...)

...

Usually what appears to be uncanny turns out to be less than mysterious, nothing more than our minds playing tricks on us. But there are those rare instances where it turns out to be something more.

We could travel to Haiti in search of zombies, completely confident in the versimiltude of our own realities.

Like Dr. Alan.

We could be researchers looking for a specific kind of drug that creates these zombies. A drug certain companies would be very interested in acquiring.

Like Dr. Alan

We could be tourists simply looking for a tax break.

Like Dr.Alan.

And we could find nothing but civil unrest, corrupt city officials, & some hallucinogenic fish powder & the occasional strange custom.


Like Dr. Alan.

Or, we could find ourselves, like Dr. Alan, unable to wake from some terrific nightmare.



We could find ourselves


zombified.

...

From Towards Break of Day
W.B. Yeats

Was it the double of my dream
The woman that by me lay
Dreamed, or did we halve a dream
Under the first cold gleam of day?