Information Processing in Motor Learning

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Presentation transcript:

Information Processing in Motor Learning Chapter 10 Kinesiology Books Publisher

Table of Contents Introduction to the structure and function of the nervous system Information processing and making decisions Feedback in movement control Factors affecting information processing Kinesiology Books Publisher

Structure and Function of the Nervous System Kinesiology Books Publisher

Connects CNS with the rest of the body Control center PNS Connects CNS with the rest of the body Kinesiology Books Publisher

The Neuron and Its Function Kinesiology Books Publisher

Neuron Nerve cell The fundamental functional and structural unit of the nervous system Allows information to travel throughout the body to various destinations Kinesiology Books Publisher

Axon: transmits message to terminal ending Receptive Segment Cell Body Dendrites: receive message Myelin sheath Conductive Segment Axon: transmits message to terminal ending Nodes of Ranvier Terminal ending on muscle: sends message to adjacent neuron Transmissive Segment Kinesiology Books Publisher Motor end plate

Skipping of the impulse allows faster conduction Myelin sheath: fatty covering or insulator Skipping of the impulse allows faster conduction Kinesiology Books Publisher

Types of Neurons Afferent neurons Interneurons Efferent neurons Sensory Carry signals to the brain Interneurons Originate and terminate in CNS Connect afferent and efferent neurons in CNS CNS tissue cross-section Efferent neurons Motor Carry signals from the brain Kinesiology Books Publisher

Types of Neurons Kinesiology Books Publisher

The Neuron’s Function Receptive segment (dendrites) Receives continuous synaptic input (chemical) from other neurons Conductive segment (axon) Conduction of neural information in the form of nerve impulses (electrical) Transmissive segment (axon terminals) Converts electrical nerve impulse to chemical form (neurotransmitter) and sends it off to synapse Conductive Transmissive Kinesiology Books Publisher

Stimulus: depolarization Neural Impulses Transport the information necessary for all activities we carry out The language of the nervous system Relay of impulse within neuron: Rest: polarization Stimulus: depolarization Rest: polarization Membrane potential = -70 mV (mV) +50 -50 -100 Action Potential +40 mV Resting Potential Stimulus Kinesiology Books Publisher

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