Grasping at sticks: pseudoneglect for perception but not action

L E Hughes, T C Bates, A A Davies

Research output: Contribution to journalArticlepeer-review

Abstract

A current question in theories of visual cognition is whether distinct cognitive processes subserve perceptual judgments and perception for action. This paper examines bisection tasks which have previously been used to demonstrate a dissociation between perception and action in brain injured patients. Forty neurologically intact participants completed a standard line bisection task and a variant of this task-rod bisection. A typical leftwards bias was observed for line bisection but when asked to locate the centre of wooden rods using perceptual judgments, a distinct rightwards bias was shown. By contrast, when participants were asked to pick the rods up by the centre, their judgments showed no bias. The results are in line with theories suggesting that perception and action are independent; however, alternative explanations are also considered.

Original languageEnglish
Pages (from-to)397-402
Number of pages6
JournalExperimental Brain Research
Volume157
Issue number3
DOIs
Publication statusPublished - Aug 2004

Keywords

  • action
  • perception
  • pseudoneglect
  • visual illusion
  • TACTILE LINE BISECTION
  • SCANNING DIRECTION
  • PICTORIAL ILLUSION
  • VISUAL NEGLECT
  • PREHENSION
  • ATTENTION
  • HAND
  • DISSOCIATION
  • PERFORMANCE
  • ACTIVATION

Fingerprint

Dive into the research topics of 'Grasping at sticks: pseudoneglect for perception but not action'. Together they form a unique fingerprint.

Cite this