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The Binding Problem after an eye movement.

Emma Wu Dowd1, Julie D Golomb2

  • 1Department of Psychology, The Ohio State University, 1835 Neil Ave, Columbus, OH, 43210, USA. emma.wu.dowd@austin.utexas.edu.

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|June 5, 2019
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Summary
This summary is machine-generated.

Eye movements disrupt object-feature binding by making spatial attention dynamic. This dynamic updating leads to more independent feature errors and illusory conjunctions after saccades, challenging visual stability.

Keywords:
Attention: space-baseEye movements and visual attention

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Area of Science:

  • Cognitive Neuroscience
  • Visual Perception
  • Psychology

Background:

  • Spatial attention is crucial for binding object features.
  • Visual representations must update from retinotopic to spatiotopic frames after eye movements.

Purpose of the Study:

  • To investigate how dynamic updating of spatial attention post-saccade impacts object-feature binding.
  • To determine if eye movements exacerbate the binding problem.

Main Methods:

  • Participants performed a feature reproduction task after a saccade.
  • Probabilistic mixture models analyzed feature error distributions to assess binding.
  • Compared feature binding during attentional updating after eye movement versus static attention.

Main Results:

  • Attentional updating after eye movements resulted in more independent feature errors.
  • Increased incidence of illusory conjunctions observed, where features were misbound.
  • Object-feature binding was compromised during dynamic attention shifts.

Conclusions:

  • Dynamic updating of spatial attention following eye movements challenges object-feature binding.
  • Eye movements introduce malleability into spatial attention, impacting visual stability.
  • The binding problem is heightened by the dynamic nature of attention across eye movements.