Fig. 3
From: Neural sensitization improves encoding fidelity in the primate retina
Time course of contrast sensitization and adaptation. a Change in spike rate for the adapted condition relative to unadapted control for adaptation periods (contrast, ±0.25–0.5; delay 0.05 s). Adaptation period was varied between 0.25 and 1.25 s (x-axis). The adapting stimulus produced a significant increase in spiking for each of the durations tested (p < 4.0 × 10–3; n = 9 cells). b Duration of contrast sensitization in midget ganglion cells. Test flashes (contrast, ±0.25–0.5) were presented at different delays (x-axis) following the offset of an adapting stimulus. Percent change in spike rate for the adapted condition relative to the unadapted condition is shown on the y-axis. Increase in spiking was statistically significant for delays ≤0.4 s (p < 7.0 × 10–3; n = 11 cells). c Same as (b) for parasol ganglion cells. The adapting stimulus significantly reduced spiking at delays ≤0.8 s (p < 7.0 × 10–3; n = 10 cells). Error bars indicate mean ± SEM. Statistical analyses were paired and significance was calculated using the Wilcoxon signed rank test
