Regulation of attention to novel stimuli by frontal lobesan event‐related potential study
作者:
Kirk Daffner,
M Mesulam,
Leonard Scinto,
Lisa Cohen,
Bruce Kennedy,
W West,
Phillip Holcomb,
期刊:
NeuroReport
(OVID Available online 1998)
卷期:
Volume 9,
issue 5
页码: 787-791
ISSN:0959-4965
年代: 1998
出版商: OVID
关键词: Attention;Curiosity;Event-Related Potentials;Frontal Lobes;N2-P3;Novelty;Orienting response
数据来源: OVID
摘要:
THIS study examined the relationship between orienting responses to novel events and subsequent exploratory behavior. The N2-P3 electrophysiologic component of the orienting response was found to be larger for novel than repetitive background stimuli. Across subjects, the amplitude of this N2-P3 response in frontal regions strongly predicted the proportional increase in the duration of viewing directed toward novel compared to background stimuli. Within subjects, larger N2-P3 amplitudes in response to novel stimuli were associated with longer viewing durations on those stimuli. These results suggest that the N2-P3 component of the orienting response reflects the activity of a neural system involving frontal networks that dynamically regulates the subsequent allocation of attentional resources to novel stimuli.
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