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The Split-Half Reliability and Construct Validity of the Virtual Reality-Based Path Integration Task in the Healthy

Xiao Fu1, Zhenglin Zhang2,3, Yanfei Zhou1

  • 1Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei 230031, China.

Brain Sciences
|December 23, 2022
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Summary

This study validates a virtual reality path integration task for healthy adults, showing its reliability and connection to brain structures like the entorhinal cortex and hippocampus. The task is age-sensitive and reflects working memory capacity.

Keywords:
entorhinalhippocampusreliabilityvirtual reality

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Human-Computer Interaction

Background:

  • Virtual reality (VR) path integration tasks show potential for predicting dementia risk.
  • Further validation in healthy populations is needed to understand task reliability and its relationship with brain structures.

Purpose of the Study:

  • Investigate the reliability and validity of a VR-based path integration task in healthy adults.
  • Examine the association between VR task indicators and brain structures, specifically the entorhinal cortex (EC) and hippocampus.

Main Methods:

  • Sixty healthy adults performed a VR path integration task, digit span task (DST), and MRI scan.
  • VR task indicators (absolute distance error, angle deviation, path deviation, return time) were calculated and assessed for reliability.
  • Correlation and regression analyses explored associations with age, cognitive ability (DST), and brain structure.

Main Results:

  • VR task indicators demonstrated good reliability (Cronbach's alpha > 0.85 for most).
  • All indicators correlated with age and DST.
  • Absolute distance error and angle deviation predicted hippocampal volume; return time predicted EC thickness.

Conclusions:

  • The VR path integration task is reliable and valid for healthy populations.
  • Task indicators are age-sensitive, reflect working memory, and correlate with entorhinal cortex and hippocampal integrity.