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Titolo:
Lateralization of cognitive processes in the brain
Autore:
Hugdahl, K;
Indirizzi:
Univ Bergen, Dept Biol & Med Psychol, N-5009 Bergen, Norway Univ Bergen Bergen Norway N-5009 ol & Med Psychol, N-5009 Bergen, Norway
Titolo Testata:
ACTA PSYCHOLOGICA
fascicolo: 2-3, volume: 105, anno: 2000,
pagine: 211 - 235
SICI:
0001-6918(200012)105:2-3<211:LOCPIT>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
MENTAL ROTATION; PLANUM TEMPORALE; PARIETAL CORTEX; ARACHNOID CYSTS; SCHIZOPHRENIA; ACTIVATION; ASYMMETRY; ATTENTION; PERFORMANCE; SPECIALIZATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
92
Recensione:
Indirizzi per estratti:
Indirizzo: Hugdahl, K Univ Bergen, Dept Biol & Med Psychol, Arstadveien 21, N-5009 Bergen, Norway Univ Bergen Arstadveien 21 Bergen Norway N-5009 Bergen, Norway
Citazione:
K. Hugdahl, "Lateralization of cognitive processes in the brain", ACT PSYCHOL, 105(2-3), 2000, pp. 211-235

Abstract

The lateralization of cognitive processes in the brain is discussed. The traditional view of a language-visuo/spatial dichotomy of function between the hemispheres has been replaced by more subtle distinctions. The use of magnetic resonance imagine (MRI) to study brain morphology has resulted in a renewed focus on the relationship between structural and functional asymmetry. Focus has been on the role played by the planum temporale area in the posterior part of the superior temporal gyrus for language asymmetry, and the possible significance of the larger left planum. The dichotic listening technique is used to illustrate the difference between bottom-up, or stimulus-driven laterality versus top-down, or instruction-driven laterality. It is suggested that the hemispheric dominance observed at any time is the sum result of the dynamic interaction between bottom-up and top-down processingtendencies. Stimulus-driven laterality dominance is always monitored and modulated through top-down cognitive processes, like shifting of attention and changes in arousal. A model of top-down modulation of bottom-up laterality is presented with special reference to the understanding of psychiatric disorders. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 00:37:48