Benefit of Multiple Representations for Motor Sequence Control in The Basal Ganglia Loops
نویسندگان
چکیده
Visual and motor coordinate systems have different computational advantages for motor sequence. This paper proposes that the multiple loops that link the basal ganglia (BG) and frontal cortical areas take their different advantages and specialize in acquisition and execution of visuomotor sequence. The central idea of the model is that a visuomotor sequence is easier to learn by visual coordinates but is easier to control by motor (joint-angle) coordinates [7]. Based on a hypothesis that the BG perform reinforcement learning using dopaminergic reinforcement signal, we constructed a network model that replicates both behavioral and physiological findings in recent experimental studies using ”2x5 task” [3].
منابع مشابه
Reinforcement Learning with Multiple Representations in The Basal Ganglia Loops for Sequential Motor Control
|The basal ganglia (BG) have been hypothesized to perform reinforcement learning by use of reinforcement signals provided by dopamine neurons. It is well known that there exist multiple BG-thalamocortical loops, but their functions are poorly understood. Here, we propose a computational model of how di erent BG loops are employed in visuomotor sequence learning using di erent representations of...
متن کاملRole of Basal Ganglia in Swallowing Process: A Systematic Review
Objectives: The basal ganglia (BG) controls different patterns of behavior by receiving inputs from sensory-motor and pre-motor cortex and projecting it to pre-frontal, pre-motor and supplementary motor areas. As the exact role of BG in swallowing process has not been fully determined, we aimed at reviewing the published data on neurological control in the swallowing technique to have a better ...
متن کاملParallel cortico-basal ganglia mechanisms for acquisition and execution of visuomotor sequences - a computational approach.
Experimental studies have suggested that many brain areas, including the basal ganglia (BG), contribute to procedural learning. Focusing on the basal ganglia-thalamocortical (BG-TC) system, we propose a computational model to explain how different brain areas work together in procedural learning. The BG-TC system is composed of multiple separate loop circuits. According to our model, two separa...
متن کاملClinical Motor and Cognitive Neurobehavioral Relationships in the Basal Ganglia
The traditional view that the basal ganglia and cerebellum are simply involved in the control of movement has been challenged in recent years. One of the pivotal reasons for this reappraisal has been new information about basal ganglia and cerebellar connections with the cerebral cortex. In essence, recent anatomical studies have revealed that these connections are organized into discrete circu...
متن کاملCognitive-motor interactions of the basal ganglia in development
Neural circuits linking activity in anatomically segregated populations of neurons in subcortical structures and the neocortex throughout the human brain regulate complex behaviors such as walking, talking, language comprehension, and other cognitive functions associated with frontal lobes. The basal ganglia, which regulate motor control, are also crucial elements in the circuits that confer hu...
متن کامل