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Titolo:
COSTS AND BENEFITS OF INTEGRATING INFORMATION BETWEEN THE CEREBRAL HEMISPHERES - A COMPUTATIONAL PERSPECTIVE
Autore:
BELGER A; BANICH MT;
Indirizzi:
VET AFFAIRS HLTH SYST,PSYCHIAT SERV 116A,COGNIT NEUROSCI LAB,950 CAMPBELL AVE W HAVEN CT 06516 UNIV ILLINOIS,BECKMAN INST URBANA IL 61801 YALE UNIV,SCH MED,DEPT PSYCHIAT NEW HAVEN CT 06520 UNIV ILLINOIS,DEPT PSYCHOL URBANA IL 61801
Titolo Testata:
Neuropsychology
fascicolo: 3, volume: 12, anno: 1998,
pagine: 380 - 398
SICI:
0894-4105(1998)12:3<380:CABOII>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
MULTIPLE-RESOURCES APPROACH; PERCEPTUAL ASYMMETRY; RIGHT-HANDERS; INTERHEMISPHERIC INTERACTION; LATERAL ASYMMETRY; TASK-DIFFICULTY; CHIMERIC FACES; VISUAL FIELDS; ATTENTION; CAPACITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
73
Recensione:
Indirizzi per estratti:
Citazione:
A. Belger e M.T. Banich, "COSTS AND BENEFITS OF INTEGRATING INFORMATION BETWEEN THE CEREBRAL HEMISPHERES - A COMPUTATIONAL PERSPECTIVE", Neuropsychology, 12(3), 1998, pp. 380-398

Abstract

Because interaction of the cerebral hemispheres has been found to aidtask performance under demanding conditions, the present study examined how this effect is moderated by computational complexity, the degree of lateralization for a task, and individual differences in asymmetric hemispheric activation (AHA). Computational complexity was manipulated across tasks either by increasing the number of inputs to be processed or by increasing the number of steps to a decision. Comparison ofwithin- and across-hemisphere trials indicated that the size of the between-hemisphere advantage increased as a function of task complexity, except for a highly lateralized rhyme decision task that can only beperformed by the left hemisphere. Measures of individual differences in AHA revealed that when task demands and an individual's AHA both load on the same hemisphere, the ability to divide the processing between the hemispheres is Limited. Thus, interhemispheric division of processing improves performance at higher levels of computational complexity only when the required operations can be divided between the hemispheres.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 08:36:51