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The Vestibular System - Functional Organization of the Primary Motor Cortex

Q: What is the similarity between the somatotopic map and the motor map?

Both maps showed the same disproportions. Muscles needed for fine and precise movement is represented by a greater area of the motor cortex . Just as the more sensitive properties of the hands are represented by a greater area of the somatosensory cortex .

Q: What finding suggested that the primary motor cortex was involved with movement initiation?

The finding that neurons start firing prior to movement

5 important questions on The Vestibular System - Functional Organization of the Primary Motor Cortex

What conclusion was drawn from epileptic seizures?

That the motor cortex contains a map representing the bodies musculatur. Seizures would start in the hands, progressing towards the arm, shoulder and eventually the face.

What is the similarity between the somatotopic map and the motor map?

Both maps showed the same disproportions. Muscles needed for fine and precise movement is represented by a greater area of the motor cortex. Just as the more sensitive properties of the hands are represented by a greater area of the somatosensory cortex.

What finding suggested that the primary motor cortex was involved with movement initiation?

The finding that neurons start firing prior to movement

What is a muscle field?

Every upper motor neuron contacts several lower motor neuron pools, every pool controls a muscle.

Every muscle field is controlled by one upper motor neuron. This supports what hypothesis?

The hypothesis that movements rather than individual muscles are encoded by upper motor neurons.

The question on the page originate from the summary of the following study material:

Neuroscience. | 9780878936977 | Dale Purves

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Topics that are related to The Vestibular System - Functional Organization of the Primary Motor Cortex

Upper Motor Neuron Control of the Brainstem and Spinal Cord

The Vestibular System - Functional Organization of the Primary Motor Cortex

5 important questions on The Vestibular System - Functional Organization of the Primary Motor Cortex

What conclusion was drawn from epileptic seizures?

What is the similarity between the somatotopic map and the motor map?

What finding suggested that the primary motor cortex was involved with movement initiation?

What is a muscle field?

Every muscle field is controlled by one upper motor neuron. This supports what hypothesis?

Topics that are related to The Vestibular System - Functional Organization of the Primary Motor Cortex

Upper Motor Neuron Control of the Brainstem and Spinal Cord

Summaries related to Lower Motor Neuron Circuits and Motor Control - Overview

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