Fig. 3 |. ACC ramping activity around the time of the choice response.

a, Mean posterior probability when decoding the chosen direction from ACC or OFC neuronal firing rates. Decoding performance gradually increased and was much stronger in ACC than OFC, peaking shortly before the lever movement. The red rectangle indicates the period where we tested the influence of value signals on the ACC choice response. Error bars denote the s.e.m. b, Activity of direction-selective neurons around the time of the choice response, showing z-scored firing rates for when the subject makes a choice in either the contralateral or ipsilateral direction, defined relative to the hemisphere from which the neurons were recorded. Neurons are sorted according to the onset of the contralateral (top row) or ipsilateral (bottom row) choice response to illustrate similarity in the dynamics of the single-neuron responses across the two different choice directions. c, The single-neuron dynamics of the choice response, as measured by the time of the onset and peak of firing, are correlated across the two different choice directions. The magnitude of the response is not correlated.