Extensive training on simple tasks such as fine orientation discrimination results in large
improvements in performance, a form of learning known as perceptual learning. Previous …

Practice effects were examined in a masked letter discrimination task and a masked
brightness discrimination task for college-age and 60-to 75-year-old subjects. The diffusion …

An emerging hypothesis postulates that internal noise is a key factor influencing perceptual
abilities in autism spectrum disorder (ASD). Given fundamental and inescapable effects of …

The incidence of cortically induced blindness is increasing as our population ages. The
major cause of cortically induced blindness is stroke affecting the primary visual cortex …

Individuals improve with practice on a variety of perceptual tasks, presumably reflecting
plasticity in underlying neural mechanisms. We trained observers to discriminate biological …

When a new perceptual task is learned, plasticity occurs in the brain to mediate
improvements in performance with training. How do these changes affect the neural …

Visual position discrimination improves with practice; however, the mechanism (s)
underlying this improvement are not yet known. We used positional noise to explore the …

Perceptual learning, improvement in discriminative ability as a consequence of training, is
one of the forms of sensory system plasticity that has driven profound changes in our …

Perceptual learning of orientation discrimination is reported to be precisely specific to the
trained retinal location. This specificity is often taken as evidence for localizing the site of …

During the past two decades growing evidence indicates that brain oscillations in the alpha
band (~ 10 Hz) not only reflect an “idle” state of cortical activity, but also take a more active …