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Prism adaptation overcomes pseudoneglect for the greyscales task

journal contribution
posted on 01.01.2009, 00:00 authored by A M Loftus, Nandi VijayakumarNandi Vijayakumar, M E R Nicholls
Visuomotor adaptation to left-shifting prisms can affect performance for a variety of tasks in neurologically intact (normal) participants. This study examined whether visuomotor adaptation affects performance on the greyscales task in normal participants. Forty-two normal participants completed a greyscales task before and after adaptation to either: left-shifting prisms, right-shifting prisms or control spectacles that did not shift the visual scene. Participants demonstrated a leftward bias (i.e., selected the stimulus that was darker on the left as being darker overall) that was reversed by a short period of visuomotor adaptation to left-shifting prisms. In contrast, this bias was unaffected by adaptation to right-shifting prisms and control spectacles. The findings demonstrate that a simple visuomotor task can alter the distribution of spatial attention for the greyscales task in normal participants. © 2008 Elsevier Srl. All rights reserved.

History

Journal

Cortex

Volume

45

Issue

4

Pagination

537 - 543

Publisher

Elsevier

Location

The Netherlands

ISSN

0010-9452

eISSN

0010-9452

Publication classification

C1.1 Refereed article in a scholarly journal