Exam 8: The Sensorimotor System

Many aspects of the sensory motor system are demonstrated by the chapter-ending PET study of Jenkins and colleagues.Describe their methods,four major results,and the conclusions based on them.Illustrate the results with a drawing of the study.

Much of the output of the posterior parietal cortex goes to the

In the primary motor cortex,the neurons that participate in the movement of a particular finger are

Two muscles whose contraction produces the same movement of a joint are said to be __________ muscles.

Which structure is thought to be involved in the integration of the sensory information that is the basis for initiating a movement?

The __________ constitutes about 10% of the brains total mass but includes over half its neurons.

Like the sensory systems,the sensorimotor system is

In general,the dorsolateral corticospinal tract controls the muscles of the

According to current theory,the sensorimotor system

Apraxia is usually caused by lesions to the

Which of the following is a major finding of the Jenkins and colleagues PET study of motor learning?

In the classic transection experiments of Lawrence and Kuypers,monkeys with all their dorsolateral motor pathways transected sat with their arms hanging limply by their sides.However,these same monkeys had no difficulty

The supplementary motor area and the premotor cortex are in the

Which of the following is a principle of sensorimotor organization?

The dorsolateral prefrontal association cortex

Only primates and a few other species,such as hamsters and raccoons,have cortical neurons that synapse directly on

In 1937,the primary motor cortex was mapped by electrically stimulating the cortex of conscious human patients who were undergoing neurosurgery.This was accomplished by

The area of association cortex that is thought to integrate the spatial information that is required to initiate an accurate movement is the __________ cortex.

Which of the following requires an inhibitory interneuron?

Which of the following helps distribute the work between different motor neurons of a muscle's motor pool?