Figure 5.

Temporal relations between tic-related activity in the putamen and M1. Timing of the earliest tic-related activity in pairs of simultaneously recorded neurons from M1 and the putamen. The x- and y-axes are the timing of the earliest tic-related activity in the neurons recorded from M1 and the putamen in each pair, respectively. The timing is given as the offset (s) from tic-onset time. The dashed line is the equality line: equal offsets for neurons in M1 and the putamen. The area above the equality line includes pairs in which tic-related activity of the M1 neuron preceded the activity in the putamen, and the area below the line includes pairs in which M1 tic-related activity was later than the putamen. Circles and triangles indicate pairs in which the putamen neuron was a PAN or TAN, respectively. Filled and open icons indicate pairs in which the tic-related activity of the cortical neuron was before or after tic-onset time, respectively.