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Updated: Jul 10, 2025
06:46
Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
Published on: March 18, 2019
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Neural correlates of perisaccadic visual mislocalization in extrastriate cortex.
Geyu Weng1,2, Amir Akbarian2, Kelsey Clark2
1Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA.
Biorxiv : the Preprint Server for Biology
|November 21, 2023
Summary
Perceived visual location shifts during saccadic eye movements (saccades). This study reveals how neural remapping in visual areas drives this spatial bias, enhancing target representation.
Area of Science:
- Neuroscience
- Computational Neuroscience
- Visual Perception
Background:
- Saccadic eye movements (saccades) alter visual perception, causing perisaccadic mislocalization.
- The neural mechanisms driving this visuospatial bias and its relation to other perisaccadic phenomena remain unclear.
Approach:
- Combined experimental and computational methods to model extrastriate spatiotemporal sensitivity.
- Quantified spatial bias around the saccade target (ST) using statistical models.
- Identified neuronal response components responsible for representational bias.
Key Points:
- Neural response remapping toward the ST is crucial for driving spatial bias, especially for neurons distant from the ST.
- Visual areas prioritize saccade target representation, allocating more resources.
- This enhancement comes at the cost of transient spatial representation distortions.
Conclusions:
- The findings provide a potential neural basis for perisaccadic saccade target representation.
- Extrastriate neurons play a significant role in constructing the perception of stimulus location.
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