Figure 11.

Representative examples and mean responses of POm neurons to electrical stimulation of the superior colliculus. A, B, PSTHs indicate the changes in activity of two neurons in POm that displayed prolonged inhibition (A) or oscillations (B) in response to electrical stimulation of the superior colliculus (arrows). Dashed lines indicate 99% confidence limits. Mean waveform scales: 1 ms, 100 μV. C, Mean normalized response of 24 POm neurons. Individual neuronal activity was expressed as a proportion of the mean spontaneous rate before collicular activation, and then the sum of these normalized responses was averaged. Binwidths, 5 ms.