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Abstract
Visual priming tasks were presented to human subjects in two conditions: first. the warning stimulus contained information on the target stimulus, second, the warning stimulus only cued that a target was to come. The subjects had to respond as fast as possible to target stimuli with a certain button press. In both conditions 40 Hz EEG power showed reliably event related dynamics. Considering the differences between both conditions, 40 Hz power and motor response time effect sizes were found to be correlated 200 ms following warning stimuli. These results demonstrate that dynamics of 40 Hz activity are related to stimulus evaluation in sensorimotor processing during a visual discrimination task.