To evaluate residual spatial vision deficits in treated amblyopia, we recruited five clinically
treated amblyopes (mean age= 10.6 years). Contrast sensitivity functions (CSF) in both the …

The functional form of performance improvements has been extensively studied in speeded
cognitive and motor tasks; in such tasks, reductions in response times have been …

Attentional cues may increase the detectability of a stimulus by increasing its signal-to-noise
ratio (signal enhancement) or by increasing the efficiency of the observer's decision making …

Perceptual learning is a training induced improvement in performance. Mechanisms
underlying the perceptual learning of depth discrimination in dynamic random dot …

Visual perception is limited by both the strength of the neural signals, and by the noise in the
visual nervous system. Here we use one-dimensional white noise as input, to study the …

Visual performance improves with practice (perceptual learning). In this study, we sought to
determine whether or not adult monkeys reared with early abnormal visual experience …

This study represents the first use of noise masking and signal detection theory to examine
mechanisms of visual loss after lesions of visual cortex. Noise-masked contrast thresholds …

Perceptual learning on simple perceptual tasks is interpreted as plasticity of neuronal
populations in the sensory cortex (M. Fahle & T. Poggio, 2002). The authors examined …

We investigated practice effects on contrast thresholds for target patterns. Results showed
that practice decreased contrast thresholds when targets were presented on maskers …

观察了猫对光栅方位辨别的知觉学习. 两只成年猫(cat1 和cat2) 先单眼辨别方位差为30
度角的两个正弦光栅以获得食物奖赏. 当辨别正确率达80% 以上后, 猫开始学习用单眼辨别夹角 …