7.2

the posterior parietal cortex ____.

keeps track of the position of the body relative to the world

What is the relationship between the lateral tract and the medial tract?

Most movements rely on both, which work in a cooperative fashion.​

​The structure composed of the caudate nucleus, putamen, and globus pallidus is the ___

basal ganglia

​Most of the axons of the medial tract go to which side of the body?

bilateral

Studies on conscious decisions regarding voluntary movements suggest that ____.

brain activity for the movement begins before we are conscious of our decision​

​In contrast to people with posterior parietal damage, people with damage to certain parts of the occipital cortex outside the primary visual cortex ____.

cannot accurately describe what they see but can reach out to grasp it​

Which basal ganglia structure(s) is/are important for receiving input from sensory areas of the thalamus and the cerebral cortex?

caudate nucleus and putamen​

A saccade is initiated by impulses from the ____.

cerebellum

​If you have trouble with rapid, ballistic movement sequences that require accurate timing, you probably have suffered damage to the ____.

cerebellum

​Speaking, piano playing, athletic skills, and other rapid movements would be most impaired by damage to which structure?

cerebellum​

​People with damage to the parietal cortex appear to lack ____ related to voluntary movements.

feelings of intention

The greater the number of Purkinje cells activated, the ____.

greater the collective duration of the response​

People with posterior parietal damage ____.

have trouble converting vision into action

​The nuclei of the cerebellum (as opposed to the cerebellar cortex) are most important in ____.

holding a finger in a steady position​

​Movements near the midline of the body, such as bending and turning of the trunk, are controlled by which motor system?

medial tract

​Which widely branching cells are responsible for all of the output from the cerebellar cortex to the nuclei of the cerebellum?

purkinje cells

​What is the name of the rapid eye movement occurring when a person moves his or her eyes from one focus point to another?

saccade

​In order to elicit movement, the motor cortex ____.

sends axons to the brainstem and spinal cord

Cells in the prefrontal cortex, premotor cortex, and ____ prepare for a movement, sending messages to the primary motor cortex.

supplementary motor cortex

​Damage to the ____ impairs the ability to organize smooth sequences of activities.

supplementary motor cortex

Cerebellum is to ____ as basal ganglia are to ____.

timing; voluntary movements

​People with posterior parietal damage ____.

will not step over an obstacle, although they can accurately describe it​

​After damage to the cerebellar cortex, an individual has trouble with which part of the finger-to-nose test?

​The initial rapid movement to the nose

​Lateral tract axons are responsible for movements in the ____

​arms, hands, and toes