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Titolo:
Sex differences in lateralization revealed in the posterior language areas
Autore:
Kansaku, K; Yamaura, A; Kitazawa, S;
Indirizzi:
Electrotech Lab, Informat Sci Div, Neurosci Sect, Tsukuba, Ibaraki 3058568, Japan Electrotech Lab Tsukuba Ibaraki Japan 3058568 uba, Ibaraki 3058568, Japan Chiba Univ, Sch Med, Dept Neurol Surg, Chiba 280, Japan Chiba Univ ChibaJapan 280 , Sch Med, Dept Neurol Surg, Chiba 280, Japan
Titolo Testata:
CEREBRAL CORTEX
fascicolo: 9, volume: 10, anno: 2000,
pagine: 866 - 872
SICI:
1047-3211(200009)10:9<866:SDILRI>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN CORPUS-CALLOSUM; SIGN LANGUAGE; CEREBRAL ORGANIZATION; PLANUM TEMPORALE; BRAIN; LESIONS; ISTHMUS; VOLUME; SIZE; HAND;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Kitazawa, S Electrotech Lab, Informat Sci Div, Neurosci Sect, 1-1-4 Umezono, Tsukuba, Ibaraki 3058568, Japan Electrotech Lab 1-1-4 Umezono Tsukuba Ibaraki Japan 3058568 an
Citazione:
K. Kansaku et al., "Sex differences in lateralization revealed in the posterior language areas", CEREB CORT, 10(9), 2000, pp. 866-872

Abstract

It has been hypothesized that language functions are more strongly lateralized to the left hemisphere in males than in females. Previous anatomical data and patient studies have suggested that the posterior language areas should exhibit sex differences. However, neuroimaging studies to date have only provided support for differences in the anterior language areas. To lookfor differences in the posterior language areas, functional magnetic resonance imaging scans were obtained while male and female subjects listened attentively to a story read aloud and to the same story replayed in reverse. Comparing activation in the superior and the middle temporal gyri during a story to activation during reverse replay of the story showed lateralization to the left in males but not in females. There was no lateralization in either sex when comparing activation during random fragmentation of the story to reverse replay. In the angular and the supramarginal gyri, however, activation was lateralized to the left hemisphere in both sexes, unlike the sex-dependent activation of the posterior temporal lobes, We infer that females use the posterior temporal lobes more bilaterally during linguistic processing of global structures in a narrative than males do.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/20 alle ore 07:41:31