Figure 5.

Effects of brief and prolonged adaptation on different response epochs. A, Effect of 0.4 s adaptation on the peak response ratio of preferred adapted neurons, measured 50–100, 100–200, or 200–400 ms after stimulus onset. Data for small gratings are shown in black bars and for large gratings in open bars. Number in/above each bar indicates the number of neurons in each condition. B, Effect of 40 s adaptation on the peak response ratio. C, Effect of 0.4 s adaptation on the orientation preference of flank-adapted neurons. Because flank-adapted neurons spanned a large range of offsets from the adapter (15–75°), there was a greater number of units for analyzing the shifts in preference than the peak response ratio. D, Effect of 40 s adaptation on the orientation preference of flank-adapted neurons. Error bars indicate 95% confidence intervals.