Regulation of attention to novel stimuli by frontal lobes
| Autor: | L. G. Cohen, M.-Marsel Mesulam, Kirk R. Daffner, B. P. Kennedy, Philip J. Holcomb, Leonard F. M. Scinto, W. C. West |
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| Rok vydání: | 1998 |
| Předmět: |
Adult
Male Time Factors Photic Stimulation General Neuroscience media_common.quotation_subject Subliminal stimuli Novelty Frontal Lobe Developmental psychology Orienting response Electrophysiology Frontal lobe Event-related potential Orientation Humans Attention Female Psychology Evoked Potentials Neuroscience Vigilance (psychology) media_common |
| Zdroj: | NeuroReport. 9:787-791 |
| ISSN: | 0959-4965 |
| DOI: | 10.1097/00001756-199803300-00004 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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