Extended Data Fig. 5: Electrophysiology and trial-averaged spike rates for identified PT neurons.
From: Distinct descending motor cortex pathways and their roles in movement
a, PTupper neurons (n = 61). Left, inter-spike interval histograms; right: trial-averaged activity on lick right (blue) and lick left trials (red). Grey shaded area in inter-spike interval histograms represents the interval of −2.5 ms to 2.5 ms. b, PTlower neurons (n = 69). Boxed region indicates neurons recorded in the right ALM (ipsilateral to injection site in medulla). All other neurons were recorded in the left ALM (contralateral to injection site). c, Bursting cells (cells in which greater than 10% of inter-spike intervals were less than 5 ms) were rare in the PTupper population (3.3%) and more common in the PTlower population (18.8%; P = 0.006, Fisher’s exact test).
