Figure 5.

The alert response to motion onset is unaffected by L-AP4. A–D, Peak firing rate for ganglion cells responding to bar appearance (A), motion onset of the leading edge (grow, B), motion onset of the trailing edge (shrink, C), and full motion onset (D). Colors show response in control conditions (brown), after application of L-AP4 (burgundy; 50 μm), and after drug washout (beige). Responses in each condition were averaged over n = 11 cells and separately normalized by the peak firing rate following the appearance of the dark bar. Error bars indicate SEM confidence intervals.