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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
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Attentive Tracking Disrupts Feature Binding in Visual Working Memory.

Daryl Fougnie1, René Marois

  • 1Department of Psychology, Vanderbilt Vision Research Center, Center for Integrative and Cognitive Neuroscience, Vanderbilt University, Nashville, TN 37203.

Visual Cognition
|July 18, 2009
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Summary
This summary is machine-generated.

Attention is vital for binding visual features in perception and visual working memory (VWM). Disrupting attention during VWM retention impairs feature binding, especially for spatially separated items.

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Area of Science:

  • Cognitive Psychology
  • Visual Cognition
  • Neuroscience

Background:

  • Feature binding is crucial for object perception.
  • The role of attention in visual working memory (VWM) feature binding is debated.
  • Previous research highlights attention's role in perceptual binding.

Purpose of the Study:

  • To investigate the attentional requirements for feature binding in VWM.
  • To determine if attention is necessary for binding features in working memory.
  • To differentiate the effects of attention on perceptual versus working memory binding.

Main Methods:

  • Participants performed a VWM task with a concurrent, attention-demanding multiple object tracking task.
  • The retention interval of the VWM task was filled with the tracking task.
  • Memory for color-shape conjunctions and individual features was assessed.

Main Results:

  • Attention-demanding tracking disrupted VWM memory for color-shape conjunctions.
  • This disruption exceeded general working memory impairments.
  • The impairment was more pronounced for spatially separated VWM stimuli.

Conclusions:

  • Visuospatial attention is essential for feature binding in VWM, not just perception.
  • Attention plays a critical role in maintaining integrated object representations in working memory.
  • These findings extend the known functions of attention to working memory processes.