Distribution of Latent Components Related to Information Processinga
Wolfgang Skrandies, Robert M. Chapman, John W. McCrary, John A. Chapman · Annals of the New York Academy of Sciences · 1984
Endogeneous components of evoked potentials (EPs) are commonly defined by their correlation with internal stimulus processing mechanisms and their independence of the physical stimulus characteristics (Donchin er al., 1978).In the present study, we investigated evoked potentials recorded during performance on an information processing task.In previous studies, latent components have been identified which were related to attention, relevance of the stimulus and the probability of occurrence of a task-relevant stimulus (Chapman et al., 1978; 1979).We were interested not only in the temporal characteristics of components of the evoked potentials but also in their spatial distribution on the scalp.Therefore, EEG recordings were obtained simultaneously from 16 scalp locations.In order to investigate the relationship of central projections of the visual field to the evoked potential components, we also varied the stimulus location on the retina.