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Titolo:
Differences in visual attention and task interference between males and females reflect differences in brain laterality
Autore:
Davidson, H; Cave, KR; Sellner, D;
Indirizzi:
Univ Southampton, Dept Psychol, Southampton SO17 1BJ, Hants, England Univ Southampton Southampton Hants England SO17 1BJ 7 1BJ, Hants, England Vanderbilt Univ, Dept Psychol & Human Dev, Nashville, TN 37203 USA Vanderbilt Univ Nashville TN USA 37203 Human Dev, Nashville, TN 37203 USA Univ Gottingen, Inst Psychol, D-37073 Gottingen, Germany Univ Gottingen Gottingen Germany D-37073 hol, D-37073 Gottingen, Germany
Titolo Testata:
NEUROPSYCHOLOGIA
fascicolo: 4, volume: 38, anno: 2000,
pagine: 508 - 519
SICI:
0028-3932(2000)38:4<508:DIVAAT>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
MULTIPLE-RESOURCES APPROACH; SPATIAL WORKING-MEMORY; CEREBRAL HEMISPHERES; SEX-DIFFERENCES; PET;
Keywords:
visual selection; character recognition; hemispheres; spatial probes; sex differences; orienting;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Cave, KR Univ Southampton, Dept Psychol, Southampton SO17 1BJ, Hants, England Univ Southampton Southampton Hants England SO17 1BJ nts, England
Citazione:
H. Davidson et al., "Differences in visual attention and task interference between males and females reflect differences in brain laterality", NEUROPSYCHO, 38(4), 2000, pp. 508-519

Abstract

Two cognitive tasks (a letter memory task and a spatial memory task) designed to selectively activate the left or right hemisphere were combined withattentional probe tasks to measure how hemispheric activation affects attention to left and right hemifields. The probe task in Experiment 1 requiredthe identification of digits in the left and right hemifield. During the letter task; male subjects identified more probes from the left hemifield than from the right. Their accuracy varied little across the two hemifields during the dots task. Experiment 2 tested whether this pattern is due to either spatial attention or interference in character processing. Instead of identifying digits, the probe task required subjects to respond to a black square that appeared in the periphery of the screen. For male subjects, the pattern was oppositeof that from Experiment 1. During the letter task they responded faster tothe probe in the right hemifield than in the left. Their response times were equivalent across the two hemifields during the dots task. These results indicate two separate effects of laterality in male subjects. The activation of one hemisphere produced more attention to the contralateral hemifield in Experiment 2, and the letter memory task interfered with the processing of other characters in the right Visual held more than thosein the left Visual field in Experiment 1. Neither of these effects appeared in female subjects, corroborating earlier claims that female brains are less lateralized than male brains. (C) 2000 Elsevier Science Ltd. All rightsreserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 09:00:37