Mirror symmetrical transfer of perceptual learning by prism adaptation.

Full Abstract

Recent study of [Sugita, Y. (1996) Global plasticity in adult visual cortex following reversal of visual input. Nature, 380, 523-526.] demonstrated that prism adaptation to reversed retinal input generates the transfer of neuronal activities in monkey V1 to the opposite visual cortex. This raises the question if perceptual learning on one side of the visual field can transfer to the other side. We tested this in using the Gabor lateral masking paradigm. Before adaptation, long-range interaction was induced vertically on one side (i.e., the right) of the visual field with training (perceptual learning). Prism adaptation was achieved by wearing right-left reversing goggles. During adaptation period, perceptual learning transferred to a mirror symmetrical region across the vertical meridian. Results in the post adaptation period revealed that both learning and transfer persisted for over three months. These results provide direct evidence of transferred perceptual plasticity across the visual field, the underlying mechanism of which is supported by the mirror symmetrical connection between the right and left cortices.

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Author information

Author/s: Tanaka, Yasuto (Y); Miyauchi, Satoru (S); Misaki, Masaya (M); Tashiro, Takara (T);

Affiliation: Biological ICT Group, National Institute of Information and Communications Technology (NICT), 588-2 Iwaoka, Iwaoka-cho, Nishi-ku, Kobe-shi, Hyogo 651-2492, Japan. ytanaka(-atsign-)po.nict.go.jp

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Vision research (Vision Res), published in England. (Language: eng)

Reference: 2007-May; vol 47 (issue 10) : pp 1350-61

Dates: Created 2007/04/16; Completed 2007/06/29;

PMID: 17383707, status: MEDLINE (last retrieval date: 12/26/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adaptation, Ocular - physiology
Adult
Contrast Sensitivity - physiology
Discrimination Learning - physiology
Eyeglasses
Fixation, Ocular - physiology
Humans
Neuronal Plasticity - physiology

Neuronal Plasticity - physiology
Orientation - physiology
Pattern Recognition, Visual - physiology
Perceptual Masking - physiology
Photic Stimulation - methods
Transfer (Psychology) - physiology
Visual Fields - physiology
Visual Perception - physiology

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