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Related Experiment Video

Updated: Jun 21, 2026

MPI CyberMotion Simulator: Implementation of a Novel Motion Simulator to Investigate Multisensory Path Integration in Three Dimensions
09:46

MPI CyberMotion Simulator: Implementation of a Novel Motion Simulator to Investigate Multisensory Path Integration in Three Dimensions

Published on: May 10, 2012

No direction home: Extinction is affected by implicit motion.

M Jane Riddoch1, Sarah Bodley Scott, Glyn W Humphreys

  • 1Behavioural Brain Sciences, School of Psychology, University of Birmingham, UK. m.j.riddoch@bham.ac.uk

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|August 12, 2009
PubMed
Summary
This summary is machine-generated.

Implied motion helps patients with parietal lobe damage notice objects on their neglected side. Linking objects via motion reduces spatial bias, improving awareness of contralesional stimuli.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Perception

Background:

  • Parietal lobe lesions can cause neglect, where patients ignore stimuli on the side opposite the lesion (contralesional).
  • Awareness of contralesional stimuli can improve when stimuli are part of a common action, suggesting integrated perception.

Observation:

  • This study investigated if implied motion between objects enhances awareness in patients with spatial neglect.
  • Stimuli pairs were presented with implied motion directed towards or away from each other.

Findings:

  • Patients showed improved awareness of two objects when implied motion was directed towards the second object, compared to away.
  • This effect persisted regardless of whether motion was contralesional or ipsilesional, and even when motion direction was not consciously discriminated.

Implications:

  • Implicit coding of motion links objects into a unified perceptual unit.
  • This object unification mechanism may reduce the spatial selection bias that underlies neglect.