Figure 2

Response kinetics of superior colliculus neurons. A-C: PSTHs of representative responses constructed with 1 msec bins. Collicular responses to air-puffs (A) or piezoelectric (B, piezo) vibrissa deflections. C-F: Boxplots depict median (solid line), mean (dotted line) and 1^st and 3^rd quartiles (box). Whiskers represent data within 1.5 times the range from the 1^st to the 3^rd quartile. Squares represent outliers (data outside 1.5 times the range from the 1^st to the 3^rd quartile). C: Neurons in the superior colliculus have low or no spontaneous activity. D: Response latencies evoked by air-puff deflections were not significantly different than those evoked by piezoelectric deflections (P = 0.2). E: Response magnitude was unaffected by stimulus type (P = 0.7). F: Response durations were short and unaffected by stimulus type (P = 0.07). All statistical comparisons use the Kolmogorov-Smirnov test.