Figure 5. Relationship between contrast gain control and shifts in preferred speed following adaptation.

Scatter plots showing speed-shift (ordinate) as a function of contrast-shift (abscissa) following low (A) and high (B) speed adaptation for each cell. Points to the right of the vertical line indicate an increase in C₅₀ following adaptation (contrast gain control). Points below the horizontal line indicate a reduction in the peak speed of the cell following adaptation.