Figure 12.

Different patterns of adaptation and the assumed underlying physiology. a, Directional selectivity, as measured by a release from adaptation that is proportional to the angular difference between adaptation and test direction, for the adapted motor act (red curve), and no directional selectivity for the non-adapted motor act (blue curve) indicates that the neural response is selective for the direction of the adapted motor act, suggesting that this region contains populations of directionally selective neurons specific for the type of motor act. b, Directional selectivity both for adapted and non-adapted motor act test trials suggests that this region contains populations of directionally selective neurons sensitive to both types of motor act.