Figure 1.

Illustration of gain change during saccade adaptation. A typical intrasaccadic step (ISS)-adaptation session. Saccade gain is slightly bellow 1 in the baseline-phase, where there are no ISSs. In the adapt-phase, gain decreases progressively to an asymptote. Note that adaptation is incomplete. In the post-phase, where there are again no ISSs, gain progressively increases toward the baseline level.