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Title: Agency in Thoughts Versus Action Tags: Well-Being Type: Reference Reference: Soon CS, Brass M, Heinze HJ, Haynes JD. Unconscious determinants of free decisions in the human brain, Nat Neurosci. 2008 May
While neural precursors of some decisions precede awareness, agency may lie less in when a decision starts and more in our ability to evaluate and override it. Neural preparation doesn’t equal destiny.
Spontaneous motor decisions show neural patterns that predict outcomes seconds before conscious awareness. In the 2008 work on unconscious determinants, analysis using fMRI found predictive signals in the frontopolar cortex and precuneusup to several seconds before a left vs. right button press entered reported awareness. The effect was probabilistic and constrained to consequence-free binary choices. Awareness can still veto or revise impulses after they begin, preserving functional agency even if initiation timing feels unconscious.