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Event‐Related Potentials During Visual Selective Attention in Children of Alcoholics *
Author(s) -
Stelt Odin,
Gunning W. Boudewijn,
Snel Jan,
Kok Albert
Publication year - 1998
Publication title -
alcoholism: clinical and experimental research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.267
H-Index - 153
eISSN - 1530-0277
pISSN - 0145-6008
DOI - 10.1111/j.1530-0277.1998.tb05894.x
Subject(s) - p3b , psychology , event related potential , stimulus (psychology) , audiology , visual processing , scalp , electroencephalography , neuroscience , negativity effect , selective attention , developmental psychology , cognitive psychology , cognition , perception , medicine , anatomy
Event‐related potentials were recorded from 7‐ to 18‐year‐old children of alcoholics (COAs, n = 50) and age‐ and sex‐matched control children ( n = 50) while they performed a visual selective attention task. The task was to attend selectively to stimuli with a specified color (red or blue) in an attempt to detect the occurrence of target stimuli. COAs manifested a smaller P3b amplitude to attended‐target stimuli over the parietal and occipital scalp than did the controls. A more specific analysis indicated that both the attentional relevance and the target properties of the eliciting stimulus determined the observed P3b amplitude differences between COAs and controls. In contrast, no significant group differences were observed in attention‐related earlier occurring event‐related potential components, referred to as frontal selection positivfty, selection negativity, and N2b. These results represent neurophysiological evidence that COAs suffer from deficits at a late (semantic) level of visual selective information processing that are unlikely a consequence of deficits at earlier (sensory) levels of selective processing. The findings support the notion that a reduced visual P3b amplitude in COAs represents a high‐level processing dysfunction indicating their increased vulnerability to alcoholism.