Ever since Hubel and Wiesel described orientation selectivity in the visual cortex, the question
of how precise selectivity emerges has been marked by considerable debate. There are …

Orientation selectivity in the primary visual cortex (V1) is a receptive field property that is at
once simple enough to make it amenable to experimental and theoretical approaches and yet …

Neural responses are typically characterized by computing the mean firing rate, but response
variability can exist across trials. Many studies have examined the effect of a stimulus on …

The mechanisms underlying the emergence of orientation selectivity in the visual cortex have
been, and continue to be, the subjects of intense scrutiny. Orientation selectivity reflects a …

The origin of orientation selectivity in visual cortical responses is a central problem for
understanding cerebral cortical circuitry. In cats, many experiments suggest that orientation …

Tuning for speed is one key feature of motion-selective neurons in the middle temporal visual
area of the macaque cortex (MT, or V5). The present paper asks whether speed is coded in …

We recorded the responses of direction-selective simple and complex cells in the primary
visual cortex (V1) of anesthetized, paralyzed macaque monkeys. When studied with sine-wave …

The existence of two classes of cells, simple and complex, discovered by Hubel and Wiesel
in 1962, is one of the fundamental features of cat primary visual cortex. A quantitative …

Direction selectivity in simple cells of primary visual cortex, defined from their spike
responses, cannot be predicted using linear models. It has been suggested that the shunting …

Simple cells in primary visual cortex exhibit contrast-invariant orientation tuning, in seeming
contradiction to feed-forward models that rely on lateral geniculate nucleus (LGN) input …