Experience-dependent changes in cerebellar contributions to motor sequence learning
نویسندگان
چکیده
منابع مشابه
Size of error affects cerebellar contributions to motor learning.
Small errors may affect the process of learning in a fundamentally different way than large errors. For example, adapting reaching movements in response to a small perturbation produces generalization patterns that are different from large perturbations. Are distinct neural mechanisms engaged in response to large versus small errors? Here, we examined the motor learning process in patients with...
متن کاملCerebellar contributions to visuomotor adaptation and motor sequence learning: an ALE meta-analysis
Cerebellar contributions to motor learning are well-documented. For example, under some conditions, patients with cerebellar damage are impaired at visuomotor adaptation and at acquiring new action sequences. Moreover, cerebellar activation has been observed in functional MRI (fMRI) investigations of various motor learning tasks. The early phases of motor learning are cognitively demanding, rel...
متن کاملParallel contributions of cerebellar, striatal and M1 mechanisms to motor sequence learning.
When learning a new motor sequence, we must execute the correct order of movements while simultaneously optimizing sensorimotor parameters such as trajectory, timing, velocity and force. Neurophysiological studies in animals and humans have identified the major brain regions involved in sequence learning, including the motor cortex (M1), basal ganglia (BG) and cerebellum. Current models link th...
متن کاملCerebellar and Cerebellar Thalamic Contributions to Motor Adaptation
Motor control theories have proposed that the brain controls movements through internal models which perform two reciprocal computations: given the motor action, predict sensory consequences (forward model) and given the desired sensory states, generate the appropriate motor action (inverse model). To produce accurate movements, the brain must continually calibrate or adapt these models. In thi...
متن کاملDistributed Cerebellar Motor Learning: A Spike-Timing-Dependent Plasticity Model
Deep cerebellar nuclei neurons receive both inhibitory (GABAergic) synaptic currents from Purkinje cells (within the cerebellar cortex) and excitatory (glutamatergic) synaptic currents from mossy fibers. Those two deep cerebellar nucleus inputs are thought to be also adaptive, embedding interesting properties in the framework of accurate movements. We show that distributed spike-timing-dependen...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2002
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.022615199