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Titolo:
P300 HEMISPHERIC AMPLITUDE ASYMMETRIES FROM A VISUAL ODDBALL TASK
Autore:
ALEXANDER JE; PORJESZ B; BAUER LO; KUPERMAN S; MORZORATI S; OCONNOR SJ; ROHRBAUGH J; BEGLEITER H; POLICH J;
Indirizzi:
SCRIPPS CLIN & RES FDN,RES INST,DEPT NEUROPHARMACOL TPC-10,10666 N TORREY PINES RD LA JOLLA CA 92037 SCRIPPS CLIN & RES FDN,RES INST,DEPT NEUROPHARMACOL TPC-10 LA JOLLA CA 92037 SUNY HLTH SCI CTR,DEPT PSYCHIAT BROOKLYN NY 00000 UNIV CONNECTICUT,CTR HLTH,DEPT PSYCHIAT FARMINGTON CT 00000 UNIV IOWA,DEPT PSYCHIAT IOWA CITY IA 52242 INST PSYCHIAT RES,DEPT PSYCHIAT INDIANAPOLIS IN 46202 UNIV WASHINGTON,DEPT PSYCHIAT ST LOUIS MO 00000
Titolo Testata:
Psychophysiology
fascicolo: 5, volume: 32, anno: 1995,
pagine: 467 - 475
SICI:
0048-5772(1995)32:5<467:PHAAFA>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
EVENT-RELATED POTENTIALS; AGE-RELATED-CHANGES; TOPOGRAPHIC ASYMMETRIES; TEMPORAL STABILITY; SCALP TOPOGRAPHY; HUMAN-BRAIN; STIMULI; EEG; SCHIZOPHRENIA; WAVES;
Keywords:
EVENT-RELATED POTENTIALS; P3(00); HEMISPHERIC DIFFERENCES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
76
Recensione:
Indirizzi per estratti:
Citazione:
J.E. Alexander et al., "P300 HEMISPHERIC AMPLITUDE ASYMMETRIES FROM A VISUAL ODDBALL TASK", Psychophysiology, 32(5), 1995, pp. 467-475

Abstract

The P3(00) event-related potential (ERP) was elicited in 80 normal, right-handed male subjects using a simple visual discrimination task, with electroencephalographic (EEG) activity recorded at 19 electrodes. P3 amplitude was larger over the right than over the left hemisphere electrode sites primarily at anteromedial locations (F3/4, C3/4) for target, novel, and standard stimuli. The N1, P2, and N2 components also demonstrated hemispheric asymmetries. The strongest P3 hemispheric asymmetries for all stimuli were observed at anterior locations, suggesting a frontal right hemisphere localization for initial stimulus processing, although target stimuli produced larger P3 amplitudes at parietal locations than did novel stimuli. The relationships of hemispheric asymmetries to anatomical variables, background EEG activity, and neurocognitive factors are discussed.

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Documento generato il 01/04/20 alle ore 20:34:14