Abstract
Correlates of predictive activity associated with observation of patterns in sequences of events were studied. Predictive cues consisted of fixed sequences of three stimuli preceding the appearance of a target (control) stimulus, to which the subject had to respond by pressing a computer mouse button as quickly as possible. Reaction times were analyzed for control stimuli, along with the characteristics (amplitude, duration) of contingent negative variation (CNV) in EEG fragments preceding the predictive cue stimuli and the control stimulus. Increases in CNV amplitude were demonstrated in the series of predictive stimuli preceding the appearance of the target stimulus, and this correlated positively with target stimulus reaction times.
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