There's alien hand syndrome in split-brain people, where the verbal hemisphere will invent its own confidently incorrect explanation of "why I just did that" wh

There's alien hand syndrome in split-brain people, where the verbal hemisphere will invent its own confidently incorrect explanation of "why I just did that" when the non-verbal hemisphere does something with the hand it controls. And there's Marvin Minsky's society of mind. But none of this undermines free will, it just means the will is a function of lots of components, only some of which are involved in contemplative thought (and not necessarily verbally).