Cell selectivity to the sequential order and task phase during the SCT. A, Normalized activity for a population of neurons with significant effects on sequence (Seq; ANOVA) that were classified as sequence selective to one, two, or three consecutive elements of the SCT using K-means clustering. Each row corresponds to one cell, and each column corresponds to one element of the SCT sequence. The letters with the arrows correspond to the raster of the cells below. B, Responses of a cell with a preferred sequence order to the second continuation interval. This cell is also tuned to longer intervals. The raster histogram is aligned (gray line) to the first tap of the continuation phase. Black dots correspond to tapping times. The associated spike-density functions are shown to the right. C, Cell that shows a selective response for the first and second intervals of the continuation phase, which also shows a preference for short intervals. The raster histogram is aligned to the first tap of the continuation phase. D, Responses of a cell with selective activity during the synchronization phase of the SCT. The raster histogram is aligned to the last tap of the synchronization phase.