Motor Control Flashcards
(78 cards)
Lower motor neuron that stimulate extramural and intramural muscle fibers, respectively
Alpha and gamma motor neurons
The concept that these motor neurons are activated simultaneously during voluntary movement
Alpha-gamma coactivation principle
An area in the brain responsible for the initiation of movement
Basal gangila
A hypothesis that rhythmical control of locomotion is located in the spinal cord by a network of neurons
Central pattern generator
-a brain structure that assists in the coordination of movement
Cerebellum
A neural pathway that connects the cerebral cortex and the cerebellum
Cerebrocerebellar loop
A theoretical approach to understanding complex systems
Chaos theory
The time required to react to a stimulus when two or more responses are possible
Choice reaction time
A theory proposed by Adams (1971) on how movements are learned that emphasized the importance of feedback
Closed-loop theory
Extended practice on only variation of a skill
Constant practice
An outside variable that induce pattern change in complex systems
Control parameter
Patterns of coordination that making up an individuals intrinsic dynamics
Coordination tendencies
A major motor pathway involved in voluntary movement
Corticospinal tract
A lack of sensory feedback
Deafferentation
A concept developed by J>J Gibson that argues that we can pick up important features of the environment without major analysis by the brain.
Direct perception
Important sensory pathways that send information to the somato-sensory cortex.
Dorsal columns
A type of chaos on the coordination of movement
Dynamic pattern theory
Proposed by J.J. Gibson that stimuli be directly used by the perceptual-motor system without elaborate processing through separate stages by the CNS.
Ecological perspective approach
In dynamic pattern theory, this information defines the required coordination pattern involved in the new motor task to be learned
Environmental information
A stationary limb position where the torques of the agonist and antagonist muscles are equal and opposite.
Equilibrium point
A hypothesis developed by anatol Feldman, arguing that the motor system controls the threshold of activation of the motor neurons that innervate the muscles
Equilibrium point hypothesis
Muscle fibers in skeletal muscles
Extrafusal fibers
Information about a movement from outside the body
Extrinsic feedback
Information both within and outside the body that is used to help make adjustments of a movement
Feedback
