Fig. 5.

The circular distance (angle) between preferred directions in short and long trials for all statistically significant EPs (denominator in heading) and selective (numerator in heading) in short and long trials. Each line represents the circular difference between short and long trials of one EP. Zero indicates no difference in preferred directions in short and long trials. Dashed lines indicate all EPs that are selective in short and long trials, whereas overlying solid lines indicate the subset (numbers in parentheses in heading) that are additionally significantly modulated by delay duration. M1 in black and PMd in gray (monkey M).