Download - Motor system overview
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Voluntary Motor Control
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Control of voluntary movement
IdeaAssociation
cortexPremotor +
Motor cortex
Basal Ganglia
Lateral cerebellum
Movement
Intermediate Cerebellum
ExecutionPlanning
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Organization of Motor Nervous System
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Spinal Motor Neuron
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Spinal Cord: Grey matter
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Motor Unit
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Neuromuscular Junction
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Mechanism of Muscle contraction
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Muscle Spindle
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Stretch Reflex
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Muscle Stretch Reflexes
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Golgi Tendon Organ
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Golgi Tendon Organ
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Feedback Inhibition: Golgi Tendon Organ
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Alpha and gamma motor neurons are coactivated during voluntary movements
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Spinal Animal
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Sensory Feedback for walking
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Locomotor Center in Cat
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Modulation of Movement by the Basal Ganglia
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Motor components of the human basal ganglia
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Anatomical Organization of Basal Ganglia Input
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Output of Basal Ganglia
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Disinhibition in the direct and indirect pathways through the basal ganglia
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Organization of Cerebellum
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Input of Cerebellum
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Cerebellar Output
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Vestibulocerebellum
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Neocerebellum
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The spinocerebellum contains two somatotopic neural maps of the body
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Motor modulation by the cerebrocerebellum
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Cerebellar Pathway
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Functional Organization of the Primary Motor Cortex
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The major inputs to the motor cortex in monkeys
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Corticospinal Tract
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Convergence of Motor Control on the Anterior Motor Neuron
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Experimental apparatus developed to record the activity of single neurons in awake primates trained to perform specific movements : Ed Evarts 1960
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Direct corticospinal control of motor neurons is necessary for fine control of the digits
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Motor Cortical Cell Firing with Force Generated
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Corticomotoneuronal (CM) cell is active depends on the motor task
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Different areas of cortex are activated during simple, complex, and imagined sequences of finger movements (Xenon PET)
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A. Activity in the neuron as the monkey observes another monkey make a precision group.B. Activity in the same neuron as the monkey observes the human experimenter make the precision grip.C. Activity in the same neuron as the monkey itself performs a precision grip. (From Rizzolotti et al 1996.)
Mirror Neurons