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Behavioral Assessment of Manual Dexterity in Non-Human Primates
Published on: November 11, 2011
Tiempo interrumpido de movimientos discontinuos pero no continuos por lesiones cerebelares
Rebecca M C Spencer1, Howard N Zelaznik, Jörn Diedrichsen
1Department of Psychology, University of California, Berkeley, 3210 Tolman Hall #1650, Berkeley, CA 94720, USA. rspencer@socrates.berkeley.edu
Science (New York, N.Y.)
|May 31, 2003
Resumen
El daño cerebeloso afecta la sincronización en movimientos discontinuos, pero no en movimientos continuos. Esto sugiere que el cerebelo es crucial para objetivos temporales explícitos en tareas que requieren segmentos de movimiento distintos.
Área de la Ciencia:
- La neurociencia es la neurociencia.
- El control del motor es el control del motor.
- Función del cerebelo.
Sus antecedentes:
- El daño cerebeloso está relacionado con déficits de sincronización motora.
- Investigaciones anteriores sugieren un papel amplio para el cerebelo en el control temporal.
Objetivo del estudio:
- Investigar si el daño cerebeloso afecta el control temporal tanto en movimientos continuos como discontinuos.
- Para diferenciar el papel del cerebelo en diferentes tipos de sincronización motora.
Principales métodos:
- Variabilidad temporal evaluada en pacientes cerebelosos durante movimientos rítmicos continuos.
- Variabilidad temporal evaluada en pacientes cerebelares durante movimientos discontinuos.
Principales resultados:
- Los pacientes cerebelares no mostraron déficit en la variabilidad temporal para los movimientos rítmicos continuos.
- Los pacientes cerebelares exhibieron déficits significativos en la variabilidad temporal para los movimientos discontinuos.
Conclusiones:
- Los déficits cerebelares en la sincronización motora son específicos de los movimientos discontinuos.
- El papel del cerebelo en la sincronización puede limitarse a tareas que requieren una representación temporal explícita de la meta, como se ve en los movimientos discontinuos.
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