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Application of Deep Learning-Based Medical Image Segmentation via Orbital Computed Tomography
04:48

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Published on: November 30, 2022

Remapped visual masking.

Amelia R Hunt1, Patrick Cavanagh

  • 1School of Psychology, University of Aberdeen, UK. a.hunt@abdn.ac.uk

Journal of Vision
|January 20, 2011
PubMed
Summary
This summary is machine-generated.

Attention shifts before eye movements, moving focus away from the current target location. This pre-saccadic attention shift impacts visual perception, reducing interference when masks are aligned with the target but increasing it at the target's future location.

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Area of Science:

  • Cognitive Neuroscience
  • Visual Perception
  • Oculomotor Control

Background:

  • Cells in saccade control areas anticipate target arrival in their receptive fields.
  • This neural remapping is hypothesized to shift the focus of attention.
  • Understanding this shift is crucial for explaining visual processing during eye movements.

Purpose of the Study:

  • To investigate whether attention shifts its focus pre-saccadically.
  • To determine the spatial locus of attention before an eye movement.
  • To examine the functional consequences of this attention shift on visual masking.

Main Methods:

  • A masking experiment was designed with target and mask stimuli presented shortly before a saccade.
  • A control condition without eye movements was used for comparison.
  • The spatial relationship between target, mask, and the predicted remapped location was manipulated.

Main Results:

  • In the absence of an eye movement, masks interfered with target identification only when spatially overlapping.
  • Prior to a saccade, masks overlapping the target showed reduced interference.
  • Masks presented at the target's future remapped location, however, significantly increased interference.

Conclusions:

  • The results support a pre-saccadic shift in the locus of attention.
  • Attention moves away from the current target's retinal location before the saccade.
  • This shift explains reduced masking for aligned stimuli and increased masking at the remapped location.