Performance of even the simplest visual discrimination tasks involves orchestration of
neuronal processes at multiple levels, beginning with visual responses at the retina and …

Much of our flexible behavior is dependent on responding efficiently to relevant information
while discarding irrelevant information. Little is known, however, about how neural pathways …

We recently showed that improved perceptual performance on a visual motion direction–
discrimination task corresponds to changes in how an unmodified sensory representation in …

What are the neural mechanisms underlying improvement in perceptual performance due to
learning? A recent study using motion-direction discrimination suggested that perceptual …

Direction-selective neurons in the middle temporal visual area (MT) are crucially involved in
motion perception, although it is not known exactly how the activity of these neurons is …

Psychophysical and neurophysiological studies of responses to visual motion have
converged on a consistent set of general principles that characterize visual processing of …

Physiological and behavioral evidence suggests that the activity of direction selective
neurons in visual cortex underlies the perception of moving visual stimuli. We tested this …

Correlates of sensory stimuli and motor actions are found in multiple cortical areas, but such
correlates do not indicate whether these areas are causally relevant to task performance …

The ventral visual pathway implements object recognition and categorization in a hierarchy
of processing areas with neuronal selectivities of increasing complexity. The presence of …

Behavioral performance depends on the activity of neurons in sensory cortex, but little is
known about the brain's capacity to access specific neuronal signals to guide behavior …