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Eye Movement Monitoring of Memory
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Visual working memory supports perceptual stability across saccadic eye movements.

Deborah A Cronin1, David E Irwin1

  • 1Department of Psychology.

Journal of Experimental Psychology. Human Perception and Performance
|August 10, 2018
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Summary
This summary is machine-generated.

Perceptual stability during eye movements depends on visual working memory (VWM). Loading VWM impairs saccade target detection, confirming VWM

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Vision Science

Background:

  • Vision is temporarily suppressed during saccadic eye movements.
  • Maintaining a stable visual perception requires compensating for these input gaps.
  • The Saccade Target Object Theory suggests stability relies on object correspondence across saccades, encoded in visual working memory (VWM).

Purpose of the Study:

  • To directly investigate whether perceptual stability is dependent on VWM resources.
  • To test if impairing VWM function affects the ability to maintain perceptual stability.

Main Methods:

  • Participants performed a saccade target displacement detection task.
  • This task was performed under concurrent visual working memory (VWM) load or auditory working memory (AWM) load.
  • Three experiments were conducted to assess the impact of VWM and AWM loads on performance.

Main Results:

  • A VWM load significantly impaired participants' ability to detect saccade target displacements.
  • The saccade target displacement task also negatively impacted memory performance for VWM items.
  • These detrimental effects were not observed when participants were under an AWM load.

Conclusions:

  • Perceptual stability during saccadic eye movements relies on visual working memory (VWM) resources.
  • The findings support theories positing that VWM is crucial for maintaining visual stability across saccades.
  • Performance in saccade target detection and VWM tasks are interdependent, highlighting shared cognitive resources.