Task Precision at Transfer Determines Specificity of Perceptual Learning

Overview

Journal J Vis

Specialty Ophthalmology

Date 2009 Sep 18

PMID 19757940

Citations 96

Authors

Pamela E Jeter

Barbara Anne Dosher

alexander Petrov

Zhong-Lin Lu

Affiliations

Soon will be listed here.

Abstract

Perceptual learning, the improvement in performance with practice, reflects plasticity in the adult visual system. We challenge a standard claim that specificity of perceptual learning depends on task difficulty during training, instead showing that specificity, or conversely transfer, is primarily controlled by the precision demands (i.e., orientation difference) of the transfer task. Thus, for an orientation discrimination task, transfer of performance improvement is observed in low-precision transfer tasks, while specificity of performance improvement is observed in high-precision transfer tasks, regardless of the precision of initial training. The nature of specificity places important constraints on mechanisms of transfer in visual learning. These results contribute to understanding generalization of practiced improvements that may be key to the development of expertise and for applications in remediation.

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