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Investigating the Deployment of Visual Attention Before Accurate and Averaging Saccades via Eye Tracking and Assessment of Visual Sensitivity
Published on: March 18, 2019
Selective attention and the active remapping of object features in trans-saccadic perception
1Center for Mind/Brain Studies, Department of Cognitive Sciences, University of Trento, Rovereto, Italy. david.melcher@form.unitn.it
Vision Research
|May 7, 2008
Summary
Selective attention and eye movements influence visual perception across saccades. Attention allocation impacts trans-saccadic perception, maintaining information about salient objects during eye movements.
Area of Science:
- Cognitive psychology
- Neuroscience
- Visual perception
Background:
- Trans-saccadic perception involves updating visual information across eye movements.
- Selective attention plays a crucial role in processing visual information.
- The cross-saccadic tilt aftereffect is a phenomenon used to study visual remapping.
Purpose of the Study:
- To investigate the role of selective attention in trans-saccadic perception.
- To measure the magnitude of the cross-saccadic tilt aftereffect for attended and unattended objects.
- To understand how attention and saccades interact in visual perception.
Main Methods:
- Measuring the cross-saccadic tilt aftereffect.
- Manipulating selective attention (divided vs. focused).
- Comparing aftereffect magnitudes for attended and unattended objects before and after saccades.
Main Results:
- Dividing attention decreased the tilt aftereffect regardless of saccades.
- Saccadic eye movements reduced the aftereffect due to incomplete form adaptation transfer.
- Selective attention and saccadic remapping independently and additively influenced the tilt aftereffect.
Conclusions:
- Trans-saccadic perception is dependent on the allocation of selective attention.
- Attention selects salient objects, and perception mechanisms maintain this information across eye movements.
- Attention and saccadic remapping are distinct but additive processes in visual perception.
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