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, 11 (5), 543-5

Unconscious Determinants of Free Decisions in the Human Brain

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Unconscious Determinants of Free Decisions in the Human Brain

Chun Siong Soon et al. Nat Neurosci.

Abstract

There has been a long controversy as to whether subjectively 'free' decisions are determined by brain activity ahead of time. We found that the outcome of a decision can be encoded in brain activity of prefrontal and parietal cortex up to 10 s before it enters awareness. This delay presumably reflects the operation of a network of high-level control areas that begin to prepare an upcoming decision long before it enters awareness.

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