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Titolo:
Child age and plenum temporale asymmetry
Autore:
Preis, S; Jancke, L; Schmitz-Hillebrecht, J; Steinmetz, H;
Indirizzi:
Univ Frankfurt, Dept Neurol, D-60590 Frankfurt, Germany Univ Frankfurt Frankfurt Germany D-60590 rol, D-60590 Frankfurt, Germany Univ Dusseldorf, Dept Pediat, D-40225 Dusseldorf, Germany Univ DusseldorfDusseldorf Germany D-40225 , D-40225 Dusseldorf, Germany Univ Magdeburg, Inst Gen Psychol, D-39016 Magdeburg, Germany Univ Magdeburg Magdeburg Germany D-39016 hol, D-39016 Magdeburg, Germany
Titolo Testata:
BRAIN AND COGNITION
fascicolo: 3, volume: 40, anno: 1999,
pagine: 441 - 452
SICI:
0278-2626(199908)40:3<441:CAAPTA>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN AUDITORY-CORTEX; IN-VIVO MORPHOMETRY; PLANUM TEMPORALE; HEMISPHERIC-ASYMMETRY; CEREBRAL ASYMMETRY; LANGUAGE; SPEECH; PATTERN; SURFACE; REGION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Steinmetz, H Univ Frankfurt, Dept Neurol, Schleusenweg 2-16, D-60590 Frankfurt, Germany Univ Frankfurt Schleusenweg 2-16 Frankfurt Germany D-60590 y
Citazione:
S. Preis et al., "Child age and plenum temporale asymmetry", BRAIN COGN, 40(3), 1999, pp. 441-452

Abstract

Investigations using in vivo magnetic resonance (MR) morphometry have shown that left-right asymmetry of the planum temporale (PT) is a structural correlate of hemispheric functional asymmetries in adult humans (e.g., handedness, language representation). Postmortem studies of brains of fetuses andnewborns have demonstrated that PT asymmetry becomes visible as early as in the last gestational trimester. The same studies could not clarify when the full (adult) degree of PT asymmetry is reached during brain development and whether this process may be influenced by functional specialization during childhood. We examined 61 neuropsychiatrically normal right-handed children aged 3 to 14 years (mean age +/-SD, 8.4 +/- 2.7 years; cross-sectionalstudy). MR morphometry showed no change in PT or planum parie-tale asymmetry with increasing age or brain volume. An unexpected gender difference of unknown significance emerged, with girls displaying a stronger leftward PT asymmetry, independently of age. For the age range studied, the results suggest that functional differentiation follows a structural asymmetry that isalready "preset. " (C) 1999 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 15:42:30