PMID: 9161889Jul 1, 1997Paper

Topography of visually evoked brain activity during eye movements: lambda waves, saccadic suppression, and discrimination performance

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
W Skrandies, K Laschke

Abstract

Eye movement-related brain activity was studied in 14 subjects by recording EEG topographically in 16 channels over the occipital brain areas. Potential fields obtained with or without the simultaneous presentation of a visual stimulus during the time course of horizontal saccades were compared. Without visual stimulation, eye movements were followed at a mean latency of about 65 ms by a lateralized occipital dominant component whose topography was determined by the direction of the saccade but whose latency was independent of the time course of the eye movements. This component was reminiscent of lambda waves, however, it could also be elicited in complete darkness. When stimuli were presented during saccades, component latencies increased significantly, and there were also topographic changes in the evoked potential fields. Negative centroids were located more anteriorly and positive ones more posteriorly on the scalp when compared to brain activity recorded with stable eye positions and visual stimulation. All subjects reported no suppression of visual stimuli when presented during saccades occurred. This was confirmed by testing the discrimination performance of an independent group of 27 subjects. Our data show that the ex...Continue Reading

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Citations

Jun 5, 2002·Medical & Biological Engineering & Computing·L VigonJ P Frisby
Mar 19, 1999·Neuroscience Letters·W Skrandies, E Anagnostou
May 12, 2007·Cerebral Cortex·Csaba RajkaiCharles E Schroeder
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Jan 30, 2019·Frontiers in Integrative Neuroscience·Michael A ParadisoJackson Loper
Jan 8, 2021·Journal of Vision·Olaf Dimigen, Benedikt V Ehinger

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