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Updated: Oct 28, 2025

The Spatial Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition
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Errors in visuospatial working memory across space and time.

Linjing Jiang1, Hoi-Chung Leung2

  • 1Integrative Neuroscience Program, Department of Psychology, Stony Brook University, Stony Brook, NY, 11794, USA. linjing.jiang@stonybrook.edu.

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Summary
This summary is machine-generated.

Visuospatial working memory (VSWM) performance degrades with distance and delay. Unsystematic errors increase with eccentricity and retention time, suggesting spatial and temporal processing may be independent.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology

Background:

  • Visuospatial working memory (VSWM) relies on topographically organized dorsal visual pathway regions.
  • The influence of this functional organization on VSWM behavior across space and time is not fully understood.

Purpose of the Study:

  • To systematically map VSWM performance across 2D space and varying retention intervals.
  • To investigate how functional organization constrains VSWM behavior.

Main Methods:

  • Utilized memory-guided and visually guided saccade tasks in human subjects.
  • Collected data across different target eccentricities (3°-13°) and retention delays (0.5-5 seconds).
  • Employed continuous bump attractor modeling.

Main Results:

  • Memory-guided saccades showed increased unsystematic errors (variability) with target eccentricity compared to visually guided saccades.
  • Unsystematic errors increased with longer retention delays.
  • Little interaction was observed between delay and eccentricity effects on errors.

Conclusions:

  • VSWM representation may be constrained by the visual pathway's functional topology in 2D space.
  • Unsystematic errors likely stem from memory maintenance noise, while systematic errors may arise from sensorimotor transformation noise.
  • Spatial and temporal processing in VSWM may involve independent mechanisms.