Question 1

Some of the supplementary motor area is in the
A) longitudinal fissure.
B) lateral fissure.
C) parietal cortex.
D) temporal cortex.
E) inferotemporal cortex.

Accepted Answer

The supplementary motor area is located on the medial surface of the hemisphere, which is part of the area within the longitudinal fissure.

Question 2

Large lesions to the right parietal lobe sometimes produce
A) ipsilateral astereognosia.
B) contralateral neglect.
C) apraxia.
D) all of the above
E) both A and C

Accepted Answer

Apraxia is produced by left parietal lesions, and astereognosia is not produced by parietal lesions, therefore only B can be correct.

Question 3

Apraxia typically affects
A) only the left side of the body.
B) only the right side of the body.
C) both sides of the body.
D) only the arms.
E) only the legs.

Accepted Answer

The bilateral nature of the deficits is difficult to understand; it is one of the main defining criteria of the disorder.

Question 4

The supplementary motor area and the premotor cortex are in the
A) frontal lobe.
B) temporal lobe.
C) parietal lobe.
D) occipital lobe.
E) limbic lobe.

Accepted Answer

The supplementary motor area and premotor cortex are both located in the frontal lobe of the brain. The frontal lobe is responsible for a variety of functions including movement, decision-making, and social behavior. These two areas in particular are involved in planning and executing movements, as well as coordinating movements between the two sides of the body.

Question 5

Which kinds of movements are NOT influenced by sensory feedback?
A) innate movements
B) unpracticed movements
C) practiced movements
D) ballistic movements
E) reflexive movements

Accepted Answer

Ballistic movements are too fast to be affected by sensory feedback.

Question 6

A neurological patient who shaves only the right side of his face and does not put his left arm into his sweater likely has a lesion in his right
A) premotor area.
B) supplementary motor cortex.
C) posterior parietal lobe.
D) dorsolateral frontal lobe.
E) primary motor area.

Accepted Answer

Contralateral neglect usually results from right parietal damage, which affects the left side of the body.

Question 7

Like the sensory systems,the sensorimotor system is
A) hierarchical.
B) parallel.
C) functionally segregated.
D) all of the above
E) none of the above

Accepted Answer

The chapter is organized around these concepts, which are explicitly discussed.

Question 8

The dorsolateral prefrontal association cortex
A) appears to be important in the initiation of complex voluntary movements.
B) sends projections to the primary and secondary motor cortices.
C) plays a critical role in the elicitation and blocking of reflexes.
D) both A and B
E) both B and C

Accepted Answer

The dorsolateral prefrontal association cortex is known to be involved in the initiation of complex voluntary movements, which is the explanation for the choice A. Additionally, it sends projections to the primary and secondary motor cortices, which is the explanation for the choice B. Choice C is incorrect because the function described (the elicitation and blocking of reflexes) is not typically associated with the dorsolateral prefrontal association cortex.

Question 9

In general,the various areas of secondary motor cortex are thought to
A) terminate response sequences.
B) specialize in guiding learned sequences.
C) program specific patterns of movement.
D) mediate reflexes.
E) provide the major input to spinal motor circuits.

Accepted Answer

The secondary motor cortex is responsible for programming specific patterns of movement. It doesn't terminate response sequences or mediate reflexes, nor does it provide the major input to spinal motor circuits. While it may have some involvement in guiding learned sequences, that is not its primary function.

Question 10

The supplementary motor area and the premotor cortex are considered to be areas of
A) the parietal lobe.
B) association cortex.
C) secondary somatosensory cortex.
D) secondary motor cortex.
E) the primary motor cortex.

Accepted Answer

The supplementary motor area and premotor cortex are considered to be secondary motor cortex. This is because they are involved in planning and coordinating movements, but are not directly responsible for executing movements like the primary motor cortex.

Question 11

Contralateral neglect is usually associated with large lesions of the
A) right parietal lobe.
B) left parietal lobe.
C) right frontal lobe.
D) left frontal lobe.
E) right temporal lobe.

Accepted Answer

Contralateral neglect is usually associated with large lesions of the right parietal lobe. This is because the right parietal lobe is responsible for spatial attention and awareness, and damage to this area can result in a lack of awareness or attention to objects or stimuli in the opposite side of the body.

Question 12

Small areas of secondary motor cortex were discovered in the
A) dorsolateral frontal lobe.
B) lateral prefrontal lobe.
C) cingulate gyrus.
D) posterior parietal lobe.
E) cerebellum.

Accepted Answer

The answer of Small areas of secondary motor cortex were...

Question 13

During sensorimotor learning,
A) the locus of control is often shifted to lower levels of the sensorimotor hierarchy.
B) the locus of control is often shifted from conscious to unconscious control mechanisms.
C) individual responses are often integrated into continuous motor programs.
D) all of the above
E) both A and B

Accepted Answer

All three of these principles of sensorimotor learning are emphasized in the text.

Question 14

Without the sensory feedback carried by the somatosensory nerves of the arms,human neurological patients,such as G.O.,have difficulty
A) swatting a fly.
B) maintaining a constant appropriate level of manual muscle contraction.
C) adjusting the output of the muscles of their arms to compensate for unexpected external disturbances (e.g., somebody brushing against an arm).
D) all of the above
E) both B and C

Accepted Answer

Without sensory feedback, patients struggle to maintain muscle contraction and adjust to disturbances, affecting tasks like swatting a fly.

Question 15

Much of the output of the posterior parietal cortex goes to the
A) dorsolateral prefrontal association cortex.
B) frontal eye fields.
C) various areas of secondary motor cortex.
D) all of the above
E) both B and C

Accepted Answer

The posterior parietal cortex sends output to multiple areas, including the dorsolateral prefrontal association cortex, frontal eye fields, and various areas of secondary motor cortex, making all of the above (D) the correct choice.

Question 16

With respect to sensorimotor learning,the advantage of transferring control to lower circuits of the neural hierarchy is that it
A) frees the higher levels of the nervous system to deal with more complex issues.
B) increases the reliability of movements.
C) increases validity.
D) increases conscious awareness of the response.
E) all of the above

Accepted Answer

B, C, and D are either wrong, irrelevant, or incomprehensible.

Question 17

Evidence suggests that the decision to initiate a voluntary response comes from the ____________ in concert with other areas of cortex.
A) posterior occipital cortex
B) dorsolateral prefrontal cortex
C) primary motor cortex
D) premotor cortex
E) supplementary motor area

Accepted Answer

Other areas that appear to participate in the initiation of a response, but none of these other areas is listed as an option.

Question 18

Apraxia is usually caused by lesions to the
A) the left parietal lobe.
B) the right parietal lobe.
C) the right primary motor cortex.
D) the right secondary motor cortex.
E) either temporal lobe.

Accepted Answer

Apraxia is often associated with damage to the left parietal lobe, which is involved in planning and executing movements. Lesions in other areas, such as the primary and secondary motor cortex or temporal lobe, can also result in apraxia, but the left parietal lobe is most strongly linked to this condition.

Question 19

Which structure is thought to be involved in the integration of the sensory information that is the basis for initiating a movement?
A) posterior parietal cortex
B) primary somatosensory cortex
C) primary auditory cortex
D) frontal cortex
E) primary visual cortex

Accepted Answer

The posterior parietal cortex has been implicated in the integration of sensory information for motor planning and initiation. It receives input from multiple sensory modalities and is involved in spatial perception, sensory-motor integration, and attention.

Question 20

Which of the following is a principle of sensorimotor organization?
A) The sensorimotor system is hierarchically organized.
B) Motor output is guided by sensory input.
C) Learning changes the nature and locus of sensorimotor control.
D) all of the above
E) both B and C

Accepted Answer

All three principles are emphasized in the text.

Quiz 8: The Sensorimotor System

Some of the supplementary motor area is in the

Large lesions to the right parietal lobe sometimes produce

Apraxia typically affects

The supplementary motor area and the premotor cortex are in the

Which kinds of movements are NOT influenced by sensory feedback?

A neurological patient who shaves only the right side of his face and does not put his left arm into his sweater likely has a lesion in his right

Like the sensory systems,the sensorimotor system is

The dorsolateral prefrontal association cortex

In general,the various areas of secondary motor cortex are thought to

The supplementary motor area and the premotor cortex are considered to be areas of

Contralateral neglect is usually associated with large lesions of the

Small areas of secondary motor cortex were discovered in the

During sensorimotor learning,

Without the sensory feedback carried by the somatosensory nerves of the arms,human neurological patients,such as G.O.,have difficulty

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

With respect to sensorimotor learning,the advantage of transferring control to lower circuits of the neural hierarchy is that it

Evidence suggests that the decision to initiate a voluntary response comes from the ____________ in concert with other areas of cortex.

Apraxia is usually caused by lesions to the

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

Which of the following is a principle of sensorimotor organization?