Contents

01 January 1993
Vol 259, Issue 5091

About The Cover

Representation of the responses of a single macaque neuron in visual area V4 to polar gratings; responses ranged from vigorous (red) to none (dark blue). This cell was highly selective for a narrow range of spiral gratings. Such selectivity may reflect an intermediate stage of form analysis during visual information processing. See page 100. [Image: Jack L. Gallant]