Systematic measurements of perceptual learning were performed in the presence of
external or stimulus noise. In the new external noise method (Dosher, B, & Lu, Z.-L.(1997) …

To investigate the nature of plasticity in the adult visual system, perceptual learning was
measured in a peripheral orientation discrimination task with systematically varying amounts …

What is learned during perceptual learning? We address this question by analyzing how
perceptual inefficiencies improve over the course of perceptual learning (Dosher & Lu …

Performance in perceptual tasks often improves with practice. This effect is known as
'perceptual learning,'and it has been the source of a great deal of interest and debate over …

Human operators develop expertise in perceptual tasks by practice or perceptual learning.
For noisy displays, practice improves performance by learned external-noise filtering. For …

The role of feedback in perceptual learning is probed in an orientation discrimination
experiment under destabilizing non-stationary conditions, and explored in a neural-network …

Magazine R47 since that time, with many studies designed to reveal the nature of the
underlying neural changes. Our understanding of the neural changes responsible for …

We compared perceptual learning in 16 psychophysical studies, ranging from low-level
spatial frequency and orientation discrimination tasks to high-level object and face …

Reports published in Vision Research during the late years of the 20th century described
surprising effects of long-term sensitivity improvement with some basic visual tasks as a …

Three stages of visual processing determine how internal noise appears to an external
observer: light adaptation, contrast gain control and a postsensory/decision stage. Dark …