Do rhythmic patterns in perceptual sensitivit reflect an electro-physiological clocking mechanism linking motor and perceptual processes
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2016-08-22
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en
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Abstract
As of late, there has been increasing amounts of evidence for rhythmic processes underlying both
the motor and visual sensory system, and their connection to the effective processing of stimuli in
the environment. Research suggests that motor action is involved in synchronizing the firing of
neurons in the brain, preparing for stimuli in a rhythmic fashion. In this study, we show significant
rhythmic oscillations in the alpha and theta wave band, in both the parietal-occipital cortex and
the frontal cortex, time-locked to movement onset while attending a low-contrast stimulus. This
rhythmicity is most evident over the entire medial cortex between the frontal and occipital lobes.
This hints at a link between rhythmicity in perceptual sensitivity, time-locked to movement onset
and rhythmic oscillations causing phases of higher and lower neuronal excitability.
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Faculteit der Sociale Wetenschappen