J 2011

The Neural Substrate of Predictive Motor Timing in Spinocerebellar Ataxia

BAREŠ, Martin, Ovidiu V. LUNGU, Tao LIU, Tobias WAECHTER, Christopher M. GOMEZ et. al.

Základní údaje

Originální název

The Neural Substrate of Predictive Motor Timing in Spinocerebellar Ataxia

Autoři

BAREŠ, Martin (203 Česká republika, garant, domácí), Ovidiu V. LUNGU (840 Spojené státy), Tao LIU (840 Spojené státy), Tobias WAECHTER (840 Spojené státy), Christopher M. GOMEZ (840 Spojené státy) a James ASHE (840 Spojené státy)

Vydání

Cerebellum, 2011, 1473-4222

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30000 3. Medical and Health Sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 3.207

Kód RIV

RIV/00216224:14110/11:00053159

Organizační jednotka

Lékařská fakulta

UT WoS

000291601100008

Klíčová slova anglicky

Cerebellum; Basal ganglia; Motor timing; Functional imaging

Příznaky

Mezinárodní význam
Změněno: 12. 4. 2012 07:27, Mgr. Michal Petr

Anotace

V originále

The neural mechanisms involved in motor timing are subcortical, involving mainly cerebellum and basal ganglia. However, the role played by these structures in predictive motor timing is not well understood. Unlike motor timing, which is often tested using rhythm production tasks, predictive motor timing requires visuo-motor coordination in anticipation of a future event, and it is evident in behaviors such as catching a ball or shooting a moving target. We examined the role of the cerebellum and striatum in predictive motor timing in a target interception task in healthy (n = 12) individuals and in subjects (n = 9) with spinocerebellar ataxia types 6 and 8. The performance of the healthy subjects was better than that of the spinocerebellar ataxia. Successful performance in both groups was associated with increased activity in the cerebellum (right dentate nucleus, left uvula (lobule V), and lobule VI), thalamus, and in several cortical areas. The superior performance in the controls was related to activation in thalamus, putamen (lentiform nucleus) and cerebellum (right dentate nucleus and culmen-lobule IV), which were not activated either in the spinocerebellar subjects or within a subgroup of controls who performed poorly. Both the cerebellum and the basal ganglia are necessary for the predictive motor timing. The degeneration of the cerebellum associated with spinocerebellar types 6 and 8 appears to lead to quantitative rather than qualitative deficits in temporal processing. The lack of any areas with greater activity in the spinocerebellar group than in controls suggests that limited functional reorganization occurs in this condition.

Návaznosti

MSM0021622404, záměr
Název: Vnitřní organizace a neurobiologické mechanismy funkčních systémů CNS
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Vnitřní organizace a neurobiologické mechanismy funkčních systémů CNS