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

Saturday, 2 July 2011

Dualism misfiled as science — just like intelligent design

Angus Menuge's contribution to Dembski & Licona's Evidence for God appears to have been misfiled. As Chapter 24 it's in the section titled The Question of Science, when it's clearly philosophy. Perhaps the editors were misled by the title, "The Role of Agency in Science" — it's got "Science" in the title, so if you hadn't read the essay you might put it in the science section by default. It's quite densely written, so a hurried perusal might give the wrong impression.

Menuge talks a lot about materialism and intentionality in his attempt to make the case that materialism doesn't explain agency, and — vice versa — agency refutes materialism. I don't buy it. He seems to be proposing some kind of dualism at the same time as arguing (like John Searle with his Chinese Room thought-experiment about intelligence and consciousness) that brain activity does not equate to free will, though he never uses the actual term free will. But to claim that humans have intentions and are capable of agency is to say that they have free will, and I think he's on dodgy and unproven ground implying all these are independent of the brain.
The transitions of neural activations are completely impersonal and in no way involve a point of view. But there is no doubt that there are subjects, individuals with distinct points of view. This has always been recognized by folk psychology since it seeks to provide personal reasons for an agent's actions. Jack does not (ultimately) open the fridge because Jill believes it contains a beer. Note that it will not help the eliminativist to claim that points of view are illusory, since only something with a point of view can be subject to an illusion. (p 121-2.)
I think he's making a mistake when he says that transitions of neural activations don't involve a point of view. He seems to be implying that they must be caused by a point of view that's separate from the brain, when to me it appears far more likely that the point of view, along with the experience of intentionality, free will and the rest, are manifestations of the neural activity rather than the cause of it.

The rest of the chapter appears to be claiming that materialism is self-refuting, but without the references to back up mere assertions, it's difficult to tell if there's anything to it. Menuge's dense prose isn't exactly helpful in this respect.

He mentions the work of Paul and Patricia Churchland. I've no idea if he's representing their views accurately when he disagrees with them, because he provides no references to them. The only reference he gives is to his own paper in which he claims to critique something Daniel Dennett has written. If he's so sure his thesis is correct, why isn't he citing his sources? He finishes with this:
Agency is the Achilles' heel of scientific materialism. If the materialist eliminates agency, he undermines the rationality of science. But agency also fails to reduce to materialistic categories. So, if we want to preserve the rationality of science and follow the evidence wherever it leads, we must conclude that agency is an irreducible causal category. And that is precisely the claim of Intelligent Design.
Yep, it's dualism.


4truth.net
http://www.4truth.net/fourtruthpbscience.aspx?pageid=8589952943

Monday, 24 May 2010

Subjective thoughts on the matter* of consciousness

Much of philosophy and theological or religious discussion seems to revolve around the idea of dualism — the mind/body problem. It's a debate that may shed some light on the true nature of consciousness.

I have an experience of my own self that it is something apart from my body, something separate, distinct from my flesh, bones and blood. It's more than likely, I feel, that my "self" is a psychological construct that my brain has created in order to process information in a way that it can perceive as a whole.

Where am I, in my body? Although I sense that I'm in my head, somewhere behind my eyes, I am also in my fingertips as they type on this keyboard. It seems that my brain has created an entire conceptual model of my essence — of "me" — that is at once the sum of all my parts, yet more. I have a concept of who and what I am, which is this entity — this identity — that I call "me", yet this is probably no more than the aggregation of a complex series of perceptual messages that are constantly being processed in my brain.

Back to the example of the keyboard: when I type, I move my fingers in a certain way to achieve the words that appear on screen. But do I, really, move my fingers? What I am in fact doing is flexing the muscles clustered around my wrists, and those muscles, being attached to the bones of my fingers (some distance away, anatomically speaking) cause my fingers to move. But am I doing even that? What causes the muscles around my wrists to flex? What I'm actually doing is sending nerve impulses from my brain to the nerves connected to those muscles.

So how far back must I go to find out where I actually reside in my body?

The answer, I suspect, is that the further back one goes, the more conceptual and abstract the process becomes. The "mental model" of the body that the brain creates — in order to operate the body — is probably just a complex synaptic relationship in some unspecific, diffuse area of the brain. This model is what gives us our sense of identity, of conscious self, when in fact there's nothing there.

No "me", no self, no soul.

I, myself, am an illusion.

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*Irony, ha!