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Means and standard errors of reaction times (A) and movement times (B), depending on current action mode (imagination or execution), previous action mode (pure blocks/same mode, mixed blocks/same mode, or mixed blocks/other mode), and movement sequence (complete repetition, hand repetition, or hand alternation). Letters in the figure denote the action mode sequence (I = imagination, E = execution). The first letter refers to the previous trial, the second letter to the current trial
