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Full-Text Articles in Medical Neurobiology
Effects Of Neuronic Shutter Observed In The Eeg Alpha Rhythm, Kevin E. Alexander, Justin R. Estepp, Sherif M. Elbasiouny
Effects Of Neuronic Shutter Observed In The Eeg Alpha Rhythm, Kevin E. Alexander, Justin R. Estepp, Sherif M. Elbasiouny
Neuroscience, Cell Biology & Physiology Faculty Publications
The posterior alpha (α) rhythm, seen in human electroencephalogram (EEG), is posited to originate from cycling inhibitory/excitatory states of visual relay cells in the thalamus. These cycling states are thought to lead to oscillating visual sensitivity levels termed the “neuronic shutter effect.” If true, perceptual performance should be predictable by observed α phase (of cycling inhibitory/excitatory states) relative to the timeline of afferentiation onto the visual cortex. Here, we tested this hypothesis by presenting contrast changes at near perceptual threshold intensity through closed eyelids to 20 participants (balanced for gender) during times of spontaneous α oscillations. To more accurately and …