We used one-dimensional sparse noise stimuli to generate first-order spatiotemporal maps
and second-order two-bar interaction maps for 65 simple and 124 complex direction …

Lesions of striate cortex [primary visual cortex (V1)] in adult primates result in blindness. In
contrast, V1 lesions in neonates typically allow much greater preservation of vision …

Neuronal receptive fields (RFs) provide the foundation for understanding systems-level
sensory processing. In early visual areas, investigators have mapped RFs in detail using …

We recorded responses to apparent motion from directionally selective neurons in primary
visual cortex (V1) of anesthetized monkeys and middle temporal area (MT) of awake …

Inhibitory mechanisms contribute to directional tuning in primary visual cortex, and it has
been suggested that, in the primate brain, the middle temporal area (MT) inherits most of its …

We introduce the motion reverse correlation method (MRC), a novel stimulus paradigm
based on a random sequence of motion impulses. The method is tailored to investigate the …

Common situations that result in different perceptions of grouping and border ownership,
such as shadows and occlusion, have distinct sign-of-contrast relationships at their edge …

Expectations, especially those formed on the basis of extensive training, can substantially
enhance visual performance. However, it is not clear that the physiological mechanisms …

Reverse-phi motion is the illusory reversal of perceived direction of movement when the
stimulus contrast is reversed in successive frames. Livingstone, Tsao, and Conway (2000) …