Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Differential contributions of motor cortex, basal ganglia, and cerebellum to speech motor control: Effects of syllable repetition rate evaluated by fMRI
Autore:
Wildgruber, D; Ackermann, H; Grodd, W;
Indirizzi:
Univ Tubingen, Dept Neuroradiol, CNS, Sect Exp MR, D-72076 Tubingen, Germany Univ Tubingen Tubingen Germany D-72076 Exp MR, D-72076 Tubingen, Germany Univ Tubingen, Dept Neurol, D-72076 Tubingen, Germany Univ Tubingen Tubingen Germany D-72076 Neurol, D-72076 Tubingen, Germany
Titolo Testata:
NEUROIMAGE
fascicolo: 1, volume: 13, anno: 2001,
pagine: 101 - 109
SICI:
1053-8119(200101)13:1<101:DCOMCB>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
PARKINSONS-DISEASE; CORTICAL AREAS; MOVEMENTS; PET; DYSARTHRIA; ACTIVATION; PERFORMANCE; LANGUAGE; EMISSION; TIME;
Keywords:
cerebellum; motor cortex; putamen; speech motor control; syllable production rate; oral diadochokinesis; functional magnetic resonance imaging (fMRI);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Wildgruber, D Univ Tubingen, Dept Neuroradiol, CNS, Sect Exp MR, Hoppe Seyler Str 3, D-72076 Tubingen, Germany Univ Tubingen Hoppe Seyler Str 3 Tubingen Germany D-72076 y
Citazione:
D. Wildgruber et al., "Differential contributions of motor cortex, basal ganglia, and cerebellum to speech motor control: Effects of syllable repetition rate evaluated by fMRI", NEUROIMAGE, 13(1), 2001, pp. 101-109

Abstract

In order to delineate the neuroanatomical correlates of speech motor control, functional magnetic resonance imaging was performed during silent repetitions of the syllable "ta" at three different rates (2.5, 4.0, and 5.5 Hz). Spatial extent and magnitude of hemodynamic responses at the level of themotor cortex showed a positive correlation to production frequencies. As concerns the basal ganglia, the lower rates (2.5 and 4.0 Hz) gave rise to higher magnitudes of activation within the left putamen as compared to the 5.5 Hz condition. In contrast, cerebellar responses were rather restricted tofast performance (4.0 and 5.5 Hz) and exhibited a shift in caudal direction during 5.5 as compared to 4.0 Hz. These findings corroborate the suggestion of a differential impact of various cortical and subcortical areas on speech motor control. (C) 2001 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/06/20 alle ore 20:10:39