Friday, October 20, 2006

On Consciousness

Surreal pencil drawing, 'Dawn of Consciousness' by Dan Purcell http://www.arthit.ru/0013-abstract.htmlThere is a nice overview on where science and philosophical thought are on the subject of what consciousness is and how it functions, in the current issue of U.S. News and World Report. Ignore the terrible title of the cover story, “Is There Room for the Soul?” It’s not a soul search that drives the article, but an understanding of consciousness. By the end of the piece, in this nominally conservative publication, Buddhism stands triumphant.

Indeed, let me turn to the third-to-the-last paragraph in the long article of six tightly-packed pages of text to start things off here:

Where is the self or identity on which even a broadminded religious believer might base his notion of the soul? Here Christians and others might turn to the wisdom of Buddhism, in which the self is correctly understood not as an entity or substance but as a dynamic process. As [University of California, San Francisco, neuropsychiatrist David] Galin writes in a collection of essays on Buddhism and science [Buddhism and Science (2003), edited by B. Alan Wallace], this process is “a shifting web of relations among evanescent aspects of the person such as perceptions, ideas, and desires. The Self is only misperceived as a fixed entity because of the distortions of the human point of view.” The Buddhist concept of anatman does not suggest that the self is nonexistent but rather asserts that it cannot be reduced to an essence.
The article lauches a survey of thinking on consciousness, that traces back to Plato’s and Descartes’ ideas of the separation of body and mind. Both influenced – distorted, really – Christian belief: Plato believing that soul or psyche was separate from the material body and that our reasoning self was immortal. Descartes had his “ghost in the machine” where reality consists of two substances, material substance and thinking substance – res extensa and res cogitans.

Most of the article deals with the disturbing variety of beliefs of today’s physicalist scientists. For the most hardened of them, consciousness is the after-vapor of the cold biochemical mechanisms within our skulls. We are somehow deluded into thinking we are actors on the stage of life. “Consciousness explains things that have already been decided for you,” explains Terry Sejnowski, Director of Salk’s Computational Neurobiology Labroatory. “The dopamine neurons are responsible for telling the rest of the brain what stimuli to pay attention to.” Sets of cells fire in our head and somehow create a scene [which researchers call a quale] that we are made aware of. This is all that primary consciousness is.

Some of these physicalists, such as writer and researcher Christof Koch of the Cal Institute of Technology, insist that research is on its way toward identifying sets of neuron firings with specific conscious experience, solidifying the physicalist claim of wholly understanding the delusion of consciousness.

Physical Reductionist Daniel Dennett, a philosopher at Tufts and a controversial writer, argues that consciousness is about “fame in the brain.” Neuronal assemblies vie for the spotlight in our head, competing for attention [or for being the attention], with the winners surviving, a la Darwinism.

But others’ ideas suggest that the experience of consciousness indicates something more is going on. Australian National University professor David Chalmers is known for tackling this so-called hard problem. “There is something it is like to be in an experience of consciousness. How does subjectivity arise out of matter?”

Oxford's Susan Greenfield fuzzes the physicalists set ideas with her insistence that there are varying degrees of consciousness and that emotions are basic.

David Galin objects that researchers are treating consciousness as a ‘thing’ or as the system that generates the qualia or as the central mechanism that directs how it is employed – but those are all different. They don't get at the experience itself.

Physicist Henry Sapp challenges the physicalists directly, theorizing that “conscious experience is not a mere product of underlying brain activity but an interactive event in which the attention and intentions of the observing mind also have effects on the brain.” Thus, he finds a basis for free will. This is a “Top Down Effect” which the physicalists dismiss.

Philip Clayton, a Claremont Graduate university professor, has his own Top Down notions, finding “Mind is more than the underlying physical factors that subserve it. Mind is involved in creating meaning, largely if not entirely through its ability to assert the existence of things through language.”

I find this whole topic fascinating. It gets at the innermost core of us. Not "Who are we?," but "What are we?" And, is our consciousness just meaningless froth? something we could do without as easily as we might do without a pimple on our butt?

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4 comments:

Nagarjuna said...

Tom--
Thanks for calling this article to our attention and for sharing some of its highlights with us. I now plan to read all of the article to learn even more about how scientists and philosophers currently understand consciousness and the relation between body and mind.

Ken Wilber calls the reduction of consciousness to neurobiological processes "flatland" or "narrow science," and I agree. It's always seemed to me that minds and brains somehow cause each other to do what they do. Granted, there would probably be no thoughts, emotions, and other mental phenomena without a functioning brain of some kind. On the other hand, one cannot explain mental phenomena such as the thoughts giving rise to these words merely by explaining how the neurons and neurotransmitters in my brain work, just as one cannot explain a computer's chess moves simply by explaining its hardware. Or, to follow the intent of this blog and talk politics for a moment, one cannot understand the differences between Democrats and Republicans solely by understanding the differences between their brains.

However, I will say in passing that this doesn't necessarily establish that physicist Sapp is correct when he alleges that conscious causation demonstrates the existence of free will, because both conscious processes in the mind and physical processes in the brain and their resulting volitions may turn out precisely the way they have to turn out under the circumstances in which they occur and could not turn out otherwise under those same circumstances. To my way of thinking, this means that these processes and their resulting volitions are not "free" in the sense of being "free" to be other than what they are.
--Steve

Tom said...

Thanks for your comment, Steve.

Wonderful words that you write. I am embarrassed to say that I imposed on Sapp's view that "something more" was added to flatland, creating an entryway for free will.

I do hope that you and others read the article and not go by my "synopsis with a booster shot." I tried to organized the post on the Light Rail and may have gotten things a little scrambled. I'm not now sure if some of the quotes are from the philosopher/scientist, the article, or from me in my notes.

I should vet the post and give it a scrubbing.

garnet david said...

Hello. I am David form Glittering Muse.

Thank you for the summary of this article. It's amazing how useful Buddhist thinking is at getting to the truth of a problem we have barely begun to understand through our modern sciences. The idea of process rather than some objective form to describe consciousness or spirit is being validated more and more. I am reading the book "Flow" by Csikszentmihalyi, which approaches seeking happiness in the same way.

Please consider looking into the ideas of F. M. Alexander, who came up with his own solid theories of how we live, act and function. I find the Alexander Technique to be a very helpful tool for linking Buddhist ideas with Western culture. Not only is it a method for balancing the body, but also approaches the mind and body as inextricably linked.

Kalsang Dorje said...

Anybody study The Heart Sutra recently? There seems to be some direct correlation between this Sutra and what is being discussed here. My interpretation is that because we are an ever changing flux with no inside or outside there we can conceptualize a consciousness and we experience it, but ultimately, the coldest scientists are right. Oddly enough, so are the folks debating the Top Down approach. Both are completely valid. Both are completely invalid. It can be one or the other.

Sorry for the empty analysis :)