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Updated: Jul 19, 2026
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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
Rapid targeting followed by sustained deployment of visual spatial attention
Gregory V Simpson1, Corby L Dale, Tracy L Luks
1Dynamic Neuroimaging Laboratory, Department of Radiology, University of California, San Francisco, California, USA. greg.simpson@radiology.ucsf.edu
Neuroreport
|September 27, 2006
Summary
Researchers studied how the brain prepares for spatial attention using electroencephalography. Findings reveal early brain activity targeting cued locations, aiding spatial discrimination tasks.
Area of Science:
- Cognitive Neuroscience
- Neuroscience
- Psychology
Background:
- Attentional processes are crucial for cognitive tasks.
- Previous research explored cue-related brain activity in nonspatial tasks.
Purpose of the Study:
- To investigate preparatory attention mechanisms during spatial discrimination.
- To analyze electroencephalography (EEG) activity following symbolic spatial cues.
Main Methods:
- Participants performed a spatial discrimination task.
- Electroencephalography (EEG) was recorded following central symbolic cues.
- Analysis focused on cue-related brain activity at specific scalp sites.
Main Results:
- Identified three distinct cue-related EEG activations.
- Observed early-onset positivity at posterior scalp sites contralateral to the cued location.
- Detected cue-related frontal activity followed by sustained posterior activity.
Conclusions:
- Early contralateral positivity suggests rapid targeting of cued locations.
- Findings extend previous observations of cue-related activity to spatial discrimination tasks.
- The study elucidates neural mechanisms underlying spatial attention preparation.
