Archive for April 1st, 2015

April 1, 2015

Perceptual Learning

ultimeyes

Perceptual learning is the process of learning improved skills of perception from simple sensory discriminations (e.g., distinguishing two musical tones from one another) to complex categorizations of spatial and temporal patterns relevant to real-world expertise (e.g., reading, seeing relations among chess pieces, knowing whether or not an X-ray image shows a tumor). Perceptual learning forms important foundations of complex cognitive processes (i.e., language).

In visual Vernier acuity tasks, observers judge whether one line is displaced above or below a second line. Untrained observers are often already very good with this task, but after training, observers’ threshold has been shown to improve as much as six fold. Similar improvements have been found for visual motion discrimination and orientation sensitivity.

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