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  3. In Second Nature, Nobel Prize-winning neuroscientist Gerald Edelman argues that the brain and mind are unified, but he has littl

In Second Nature, Nobel Prize-winning neuroscientist Gerald Edelman argues that the brain and mind are unified, but he has littl

admin2013-11-29  28
问题     In Second Nature, Nobel Prize-winning neuroscientist Gerald Edelman argues that the brain and mind are unified, but he has little patience with the claim that the brain is a computer. Fortunately for the general reader, his explanations of brain function are accessible, reinforced by concrete examples and metaphors.
    Edelman suggests that thanks to the recent development of instruments capable of measuring brain structure within millimeters and brain activity within milliseconds, perceptions, thoughts, memories, willed acts, and other mind matters traditionally considered private and impenetrable to scientific scrutiny now can be correlated with brain activity. Our consciousness ( a "first-person affair" displaying intentionality, reflecting beliefs and desires, etc. ), our creativity, even our value systems, have a basis in brain function.
    The author describes three unifying insights that correlate mind matters with brain activity. First, even distant neurons will establish meaningful connections (circuits) if their patterns are synchronized. Second, experience can either strengthen or weaken synapses (neuronal connections) . Finally, there is reentry, the continued signaling from one brain region to another and back again along massively parallel nerve fibers.
    Edelman concedes that neurological explanations for consciousness and other aspects of mind are not currently available, but he is confident that they will be soon. Meanwhile, he is comfortable hazarding a guess: "All of our mental life...is based on the structure and dynamics of our brain. " Despite this optimism about the explanatory powers of neuro-science, Edelman acknowledges the pitfalls in attempting to explain all aspects of the mind in neurological terms. Indeed, culture—not biology—is the primary determinant of the brain’s evolution, and has been since the emergence of language, he notes.
    However, I was surprised to learn that he considers Sigmund Freud as "the key expositor of the effects of unconscious processes on behavior. " Such a comment ignores how slightly Freud’s conception of the unconscious, with its emphasis on sexuality and aggression, resembles the cognitive unconscious studied by neuroscientists.
    Still, Second Nature is well worth reading. It serves as a bridge between the traditionally separate camps of "hard" science and the humanities. Readers without at least some familiarity with brain science will likely find the going difficult at certain points. Nonetheless, Edelman has achieved his goal of producing a provocative exploration of "how we come to know the world and ourselves. "
The author disagrees with the idea that the neuroscience-based cognitive unconscious can be______.
选项 A、studied irrelevantly to sexual behavior
B、affected by the language acquisition
C、clearly explained by Freud’s theory
D、examined under cultural backgrounds
答案C
解析 题目问：作者不赞同有关基于神经科学的认知潜意识的哪种观点。根据文中第五段的最后一句“Such a comment ignores how slightly Freud’s conception of the unconscious…resembles the cognitive unconscious studied by neuroscientists．”可知，就像神经学家对认知潜意识的研究那样，这种评论只强调了性倾向和侵略性，忽略了弗洛伊德对潜意识的见解多么微不足道。据此可以推知，作者认为弗洛伊德的理论不能明确地解释基于神经科学的认知潜意识，因此C项为正确答案。
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