Event related dynamics of 40 Hz electroencephalogram during visual discrimination task. 1994

R Goertz, and H Jokeit, and E Küchler
Department of Psychology, Humboldt-University, Berlin, FRG.

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.

UI MeSH Term Description Entries
D011597 Psychomotor Performance The coordination of a sensory or ideational (cognitive) process and a motor activity. Perceptual Motor Performance,Sensory Motor Performance,Visual Motor Coordination,Coordination, Visual Motor,Coordinations, Visual Motor,Motor Coordination, Visual,Motor Coordinations, Visual,Motor Performance, Perceptual,Motor Performance, Sensory,Motor Performances, Perceptual,Motor Performances, Sensory,Perceptual Motor Performances,Performance, Perceptual Motor,Performance, Psychomotor,Performance, Sensory Motor,Performances, Perceptual Motor,Performances, Psychomotor,Performances, Sensory Motor,Psychomotor Performances,Sensory Motor Performances,Visual Motor Coordinations
D011930 Reaction Time The time from the onset of a stimulus until a response is observed. Response Latency,Response Speed,Response Time,Latency, Response,Reaction Times,Response Latencies,Response Times,Speed, Response,Speeds, Response
D003463 Cues Signals for an action; that specific portion of a perceptual field or pattern of stimuli to which a subject has learned to respond. Cue
D004192 Discrimination, Psychological Differential response to different stimuli. Discrimination, Psychology,Psychological Discrimination
D004569 Electroencephalography Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain. EEG,Electroencephalogram,Electroencephalograms
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014796 Visual Perception The selecting and organizing of visual stimuli based on the individual's past experience. Visual Processing,Perception, Visual,Processing, Visual

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