Prism adaptation overcomes pseudoneglect for the greyscales task

Andrea Loftus, N. Vijayakumar, M-E.R. Nicholls

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)537-543
JournalCortex
Volume45
Issue number4
DOIs
Publication statusPublished - 2009

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