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Related Experiment Video

Updated: Sep 24, 2025

Virtual Reality Tools for Assessing Unilateral Spatial Neglect: A Novel Opportunity for Data Collection
07:04

Virtual Reality Tools for Assessing Unilateral Spatial Neglect: A Novel Opportunity for Data Collection

Published on: March 10, 2021

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Endpoints and viewpoints on spatial neglect.

Robert D McIntosh1, Sumio Ishiai2

  • 1Human Cognitive Neuroscience, Psychology, University of Edinburgh, Edinburgh, UK.

Journal of Neuropsychology
|May 4, 2022
PubMed
Summary
This summary is machine-generated.

In neglect, the right endpoint heavily influences line bisection tasks, suggesting spatial representation limits. This finding offers new ways to measure neglect performance and understand subjective experiences.

Keywords:
attentionbisectionendpoint weightingsmental representationneglect

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Area of Science:

  • Neuropsychology
  • Cognitive Psychology
  • Neuroscience

Background:

  • Abe and Ishiai (2022) investigated subjective experiences in line bisection tasks among individuals with neglect.
  • Re-analysis of their data provides novel insights into characterizing neglect performance.

Purpose of the Study:

  • To probe the subjective experience of line bisection in neglect.
  • To develop sensitive measures for quantifying neglect performance.
  • To explore the influence of endpoints on response determination in neglect.

Main Methods:

  • Quantifying the differential influence (weighting) of left and right endpoints on responses.
  • Analyzing data from line bisection and endpoint reproduction tasks.

Main Results:

  • The right endpoint exerts significantly greater influence than the left endpoint in individuals with neglect.
  • This asymmetry in endpoint influence was observed in both line bisection and endpoint reproduction tasks.

Conclusions:

  • Neglect may impair the simultaneous representation of two locations, leading to responses primarily determined by the right endpoint.
  • The findings challenge the notion that neglect is always accompanied by the subjective experience of a complete line.
  • Sensitive measures of neglect can be derived from endpoint influence analysis.