Orientation tuning of single neurons recorded in the injected hemisphere. A, Responses of a simple cell dominated by the left, nondeprived (non-depr.) eye (LE) recorded from the left hemisphere. The polar plot displays the response (in spikes/s) against the direction of drift of the grating stimulus (0° denotes a horizontal grating drifting up). Error bars represent SEM. This cell had a tuning half-width of 24°. B, Responses of a complex cell dominated by the right deprived (depr.) eye (RE) recorded from the left hemisphere. This cell had a tuning half-width of 29°. C, Responses of a binocular simple cell, recorded from the right hemisphere. Note that the responses through the left (nondeprived) eye (filled circles) were quite sharply tuned for orientation (half-width, 26°), while the responses through the right (deprived) eye (open circles) were nonselective.