This all appears to be a straightforward instance of scientists taking as the whole of reality that part of it their methods can report. These methods are as much a matter of vocabulary as of technology, though the two interact and reinforce each other. Here is an example. Neuroscientists seem predisposed to the conclusion that there is no “self.” This would account for indifference to the modifying effects of individual history and experience, and to the quirks of the organism that arise from heredity, environment, interactions within the soma as a whole, and so on. What can the word “self” mean to those who wish to deny its reality? It can only signify an illusion we all participate in, as individuals, societies, and civilizations. So it must also be an important function of the brain, the brain aware of itself as it is modified by the infinite particulars of circumstance, that is, as it is not like others. But this would mean the self is not an illusion at all but a product of the mind at other work than the neuroscientists are inclined to acknowledge. Of course the physical brain is subject to every sort of impairment, the areas that light up during imaging as surely as any others. Impairments that seem to compromise the sense of self may be taken to demonstrate that it is rooted in the physical brain, that same fleshly monument to provident evolution the neuroscientists admire, selectively. If the physical disruption of the sense of self is taken to prove that the self is an experience created by the physical brain, then there are no better grounds to call its existence into question than there would be to question equilibrium or depth perception. Obviously there is a conceptual problem here — equilibrium does not “exist” except in the moment-to-moment orientation of an organism to its environment. Say as much of the self, mutatis mutandis, and it is granted the same kind of reality.
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But to take a step back. It is absurd for scientists who insist on the category “physical,” and who argue that outside this category nothing exists, to dismiss the reality of the self on the grounds that its vulnerabilities can be said to place it solidly within this category. How can so basic an error of logic survive and flourish? There is a certain Prometheanism in this branch of science that would rescue us mortals from entrenched error — for so they see the problem of making their view of things persuasive. For this reason — because questions might seem a betrayal of science as rescuer — its tenets enjoy a singular immunity from the criticism of peers. And their proponents feel confirmed by doubt and objection on the same grounds, that their origins and motives can be taken to lie in a hostility to science. On scrutiny the physical is as elusive as anything to which a name can be given. The physical as we have come to know it frays away into dark matter, antimatter, and by implication on beyond them and beyond our present powers of inference. But for these scientists it is a business of nuts and bolts, a mechanics of signals and receptors of which no more need be known. Their assertions are immune to objection and proof against information. One they dismiss and the other they ignore.
The real assertion being made in all this (neuroscience is remarkable among sciences for its tendency to bypass hypothesis and even theory and to go directly to assertion) is that there is no soul. Only the soul is ever claimed to be nonphysical, therefore immortal, therefore sacred and sanctifying as an aspect of human being. It is the self but stands apart from the self. It suffers injuries of a moral kind, when the self it is and is not lies or steals or murders, but it is untouched by the accidents that maim the self or kill it. Obviously this intuition — it is much richer and deeper than anything conveyed by the word “belief”—cannot be dispelled by proving the soul’s physicality, from which it is aloof by definition. And on these same grounds its nonphysicality is no proof of its nonexistence. This might seem a clever evasion of skepticism if the character of the soul were not established in remote antiquity, in many places and cultures, long before such a thing as science was brought to bear on the question.
I find the soul a valuable concept, a statement of the dignity of a human life and of the unutterable gravity of human action and experience. I would add that I find my own soul interesting company, if this did not seem to cast doubt on my impeccable objectivity. This is not entirely a joke. I am not prepared to concede objectivity to the arbitrarily reductionist model of reality that has so long claimed, and been granted, this virtue. The new cosmologies open so many ways of reconceiving the universe(s) that all sorts of speculations are respectable now. We might have any number of other selves. If most or all these speculations are only flaunting new definitions of the possible, the exercise is valuable and necessary. Possibility has been captive to a narrow definition for a very long time, ourselves with it, and we must expect to blink in the light. These new cosmologies preclude almost nothing, except “the physical” as a special category. The physicality enshrined by the neuroscientists as the measure of all things is not objectivity but instead a pure artifact of the scale at which and the means by which we and our devices perceive. So to invoke it as the test and standard of reality is quintessentially anthropocentric.
I am content to place humankind at the center of Creation. We are complex enough, interesting enough. What we have learned, limited as we must assume it to be, is wonderful even in the fact of its limitations. This is no proof, of course. Be that as it may. It is not anthropocentricity that is a problem here, but the fact that it is unacknowledged and misapplied, and all the while imputed to the other side of the controversy, as if it were, eo ipso , a flagrant error. The objectivity claimed by neuroscience implies that it is free of this bias. Yet there could be no more naive anthropocentricity than is reflected in the certainty and insistence that what we can know about the nature of things at this moment makes us capable of definitive judgments about much of anything. That we have come to this place is not a failure of science but a glorious achievement, the continuous opening of insights science itself could never have anticipated. Nothing can account for the reductionist tendencies among neuroscientists except a lack of rigor and consistency, a loyalty to conclusions that are prior to evidence and argument, and an indifference to science as a whole.
This kind of criticism is conventionally made of religion. I am not attempting some sort of rhetorical tae kwon do, to turn the attack against the attacker. My point is simply that neuroscience, at least in its dominant forms, greatly overreaches the implications of its evidence and is tendentious. Its tendency is to insist on the necessity of a transformation of our conception of human nature — to make it consistent with a view of reality that it considers clear-eyed and tough-minded, therefore rational and true. Its ultimate argument seems to be that we all really know better than to subscribe to the mythic foolery that sustains us in a lofty estimation of ourselves and our kind. The evidence they offer is secondary to this conclusion and inadequate to it because it is based in a simplistic materialism that is by now a nostalgia. The profound complexity of the brain is an established fact. The depiction of a certain traffic of activation in it can only understate its complexity. One might reasonably suspect that the large and costly machines that do the imaging are very crude tools whose main virtue is that they provide the kind of data their users desire and no more.
Is it fair to say that this school of thought is directed against humanism? This seems on its face to be true. The old humanists took the works of the human mind — literature, music, philosophy, art, and languages — as proof of what the mind is and might be. Out of this has come the great aura of brilliance and exceptionalism around our species that neuroscience would dispel. If Shakespeare had undergone an MRI there is no reason to believe there would be any more evidence of extraordinary brilliance in him than there would be of a self or a soul. He left a formidable body of evidence that he was both brilliant and singular, but it has fallen under the rubric of Renaissance drama and is somehow not germane, perhaps because this places the mind so squarely at the center of the humanities. From the neuroscientific point of view, this only obscures the question. After all, where did our high sense of ourselves come from? From what we have done and what we do. And where is this awareness preserved and enhanced? In the arts and the humane disciplines. I am sure there are any number of neuroscientists who know and love Mozart better than I do, and who find his music uplifting. The inconsistency is for them to explain.
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