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11.Vigilance research indicates that when we must maintain alertness over

Question : 11.Vigilance research indicates that when we must maintain alertness over : 2106780

11.Vigilance research indicates that when we must maintain alertness over long periods of time our motor performance will:

A. Always be impaired

B. Be impaired only when the stimuli occur infrequently

C. Improve if the stimuli have occurred infrequently

D. Not be affected

12.If you are standing with your arms at your side, and must move one arm as rapidly as possible to point to a target located at shoulder level in front of you, EMG would show that the muscles you activated first were the:

A. Agonist arm muscles

B. Antagonist arm muscles

C. Arm muscles of the opposite arm

D. Postural leg muscles

13.Research related to movement complexity has shown that the longer movement preparation time is due to a longer:

A. Motor time

B. Premotor time

C. Response time

D. Motor and Premotor time

14.Based on research evidence, which of the following best describes the organization of postural muscle preparation for performing a well-learned skill?

A. A flexibly organized synergy of onset orders for the muscles involved

B. A randomly organized set of onset orders for the muscles involved

C. A rigid temporal organization that specifies the onset order for the muscles involved

D. Postural muscle preparation is not a part of the action preparation process

15.The end-state-comfort effect shows that a person plans a reaching movement based on:

A. The most comfortable initial position of the hand

B. The most comfortable final position of the hand

C. The most comfortable initial and final position of the hand

D. Their psychological state at the end of the movement

 

 

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