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Titolo:
Cerebral volumetric asymmetries in non-human primates: A magnetic resonance imaging study
Autore:
Pilcher, DL; Hammock, EAD; Hopkins, WD;
Indirizzi:
Emory Univ, Yerkes Reg Primate Res Ctr, Div Psychobiol, Atlanta, GA 30329 USA Emory Univ Atlanta GA USA 30329 tr, Div Psychobiol, Atlanta, GA 30329 USA Berry Coll, Rome, GA USA Berry Coll Rome GA USABerry Coll, Rome, GA USA
Titolo Testata:
LATERALITY
fascicolo: 2, volume: 6, anno: 2001,
pagine: 165 - 179
SICI:
1357-650X(200104)6:2<165:CVAINP>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN AUDITORY-CORTEX; PLANUM-TEMPORALE; RHESUS-MONKEYS; NONHUMAN PRIMATE; BRAIN; MRI; DOMINANCE; EVOLUTION; SCANS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Hopkins, WD Emory Univ, Yerkes Reg Primate Res Ctr, Div Psychobiol, Atlanta, GA 30329 USA Emory Univ Atlanta GA USA 30329 hobiol, Atlanta, GA 30329 USA
Citazione:
D.L. Pilcher et al., "Cerebral volumetric asymmetries in non-human primates: A magnetic resonance imaging study", LATERALITY, 6(2), 2001, pp. 165-179

Abstract

Magnetic resonance images (MRI) were collected in a sample of 23 apes, 14 Old World monkeys, and 8 New World monkeys. The total area or volume of theanterior and posterior cerebral regions of each hemisphere of the brain was measured. The results indicated that a rightward frontal and leftward occipital pattern of asymmetry was present at a population level in the great ape sample. Population-level cerebral asymmetries were not revealed in the sample of New or Old World monkeys. The total area or volume of the planum temporale, which was localised only in the great apes, was also measured inboth hemispheres. A leftward planum temporale asymmetry was evident at thepopulation level in the great apes. It was hypothesised that the rightwardfrontal and leftward occipital asymmetries would correlate with leftward planum temporale asymmetries. This hypothesis was based on the assumption that, similar to development of the human brain, the nonhuman primate brain "torques'' during development due to a growth gradient which progresses anterior to posterior, ventral to dorsal, and right to left. The results of this study confirmed the predicted relationship between cerebral volume and the planum temporale asymmetries. This supports the hypothesis that the greatape brain may develop in a "torquing'' manner, producing similar anatomical asymmetries as reported in humans.

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Documento generato il 23/01/20 alle ore 03:34:35