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Updated: Jun 27, 2026

Three-Dimensional Mapping of the Rotation of Interactive Virtual Objects with Eye-Tracking Data
06:36

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Published on: October 18, 2024

Distinct Neural Dynamics of Spatial Transformations: Egocentric Perspective-Taking and Allocentric Rotation.

Ido Amihai1, Michael Kozhevnikov2, Maria Kozhevnikov3,4

  • 1ABB AG, 68309 Mannheim, Germany.

Brain Sciences
|June 26, 2026
PubMed
Summary
This summary is machine-generated.

Egocentric spatial transformations, unlike allocentric ones, do not involve the posterior neural mechanisms typically seen in visual-spatial working memory mental rotation tasks. This suggests a distinct neural basis for perspective-taking.

Keywords:
allocentric mental rotationegocentric perspective-takingevent-related potentials (ERPs)self-motion simulationspatial transformationsvisual–spatial working memory

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Published on: October 18, 2024

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Area of Science:

  • Cognitive Neuroscience
  • Spatial Cognition
  • Neuroscience of Working Memory

Background:

  • Egocentric and allocentric spatial transformations are fundamental to spatial cognition.
  • The neural mechanisms underlying these transformations, particularly egocentric transformations and their relation to mental rotation, remain unclear.

Purpose of the Study:

  • To investigate whether egocentric spatial transformations engage neural processes similar to mental rotation in visual-spatial working memory.
  • To differentiate the neural correlates of egocentric perspective-taking from allocentric array rotation.

Main Methods:

  • High-density electroencephalography (EEG) was used to record brain activity.
  • Participants performed matched allocentric array rotation and egocentric perspective-taking pointing-direction tasks.
  • Event-related potentials (ERPs) were analyzed based on rotation angle and front-back pointing differences.

Main Results:

  • Both tasks showed increased response times with larger rotation angles.
  • A front-back accuracy asymmetry was unique to the egocentric perspective-taking task.
  • Rotation-related ERP modulations differed in timing and spatial distribution between tasks, with egocentric tasks showing more widespread front-back differences.

Conclusions:

  • Egocentric perspective-taking does not recruit the posterior ERP effects linked to mental rotation of object representations in visual-spatial working memory.
  • Egocentric transformations appear to involve updating an observer-centered reference frame, potentially engaging self-motion simulation and vestibular/proprioceptive signals.