Question 1

Which of the following best describes the difference between simple reaction time (SRT) and choice reaction time (CRT)?

Accepted Answer

SRT involves a single stimulus and a single response, whereas CRT involves multiple stimuli and requires the participant to select the correct response for each stimulus.

Question 2

Fractionated reaction time (FRT) divides reaction time into which two main components?

Accepted Answer

Premotor time (PMT) and motor time (MT)

Question 3

In a laboratory setting, which tool is commonly used to measure the onset of muscle activity during fractionated reaction time experiments?

Accepted Answer

Electromyography (EMG)

Question 4

A subject is asked to respond as quickly as possible to a visual stimulus by pressing a button. The time from the presentation of the stimulus to the onset of muscle activity is measured as $$PMT. If $$the time from muscle activity onset to the button press is $$MT$$, which equation correctly represents the total reaction time ($$RT$$)?

Accepted Answer

$$RT = PMT + MT$$

Question 5

Which of the following variables is most likely to influence the premotor time (PMT) component of reaction time?

Accepted Answer

The complexity of the decision required before movement initiation

Question 6

A researcher is studying the speed-accuracy tradeoff in motor control. Which measurement would be most useful for quantifying how quickly and accurately a subject completes a movement sequence?

Accepted Answer

Movement time (MT)

Question 7

In a choice reaction time (CRT) experiment, a subject must press one of four buttons depending on which light appears. If the average CRT is 400 ms and the average SRT is 200 ms, what does this suggest about the cognitive demands of CRT compared to SRT?

Accepted Answer

CRT requires more complex decision-making processes than SRT.

Question 8

Which of the following best explains why fractionated reaction time (FRT) is useful in clinical settings for patients with movement disorders?

Accepted Answer

FRT can separate cognitive planning deficits from motor execution deficits.

Question 9

A subject is asked to perform a movement sequence that consists of three segments, each lasting 200 ms. According to research, how is the movement likely to be planned?

Accepted Answer

Only the first segment is planned in advance, with subsequent segments planned during execution.

Question 10

Which of the following scenarios would most likely result in a longer premotor time (PMT)?

Accepted Answer

A choice reaction requiring selection among multiple possible responses

Question 11

If a subject’s total reaction time ($$RT) is 350 ms$$, and their movement time ($$MT) is 150 ms$$, what is their premotor time ($$PMT$$)?

Accepted Answer

$$PMT = RT - MT = 350\ ms - 150\ ms = 200\ ms$$

Question 12

Which of the following is NOT a factor that can influence reaction time in experimental settings?

Accepted Answer

The color of the subject’s clothing

Question 13

In a speed-accuracy tradeoff scenario, what typically happens as the speed of movement increases?

Accepted Answer

Accuracy of the movement decreases.

Question 14

Which measurement is most appropriate for determining the time required to complete a movement after it has been initiated?

Accepted Answer

Movement time (MT)

Question 15

A subject is tested in a discrimination reaction time task where they must respond only to a specific stimulus among several presented. What cognitive process is primarily being measured?

Accepted Answer

Response selection and inhibition

Question 16

Which of the following best describes the use of reaction time (RT) measures in sports performance analysis?

Accepted Answer

RT measures provide insight into the decision-making processes and strategies used by athletes during movement.

Question 17

In fractionated reaction time studies, which component is most affected by the subject’s anticipation of the stimulus?

Accepted Answer

Premotor time (PMT)

Question 18

A patient with Parkinson’s disease is found to have a prolonged premotor time (PMT) but a normal motor time (MT). What does this suggest about their movement preparation?

Accepted Answer

They have impaired cognitive processing before movement initiation.

Question 19

Which equation correctly represents the relationship between reaction time ($$RT$$), premotor time ($$PMT$$), and motor time ($$MT$$)?

Accepted Answer

$$RT = PMT + MT$$

Question 20

In a multi-step movement sequence, which measurement would best indicate whether the entire sequence was planned in advance or in segments?

Accepted Answer

Fractionated reaction time (FRT)

Psychological Measurement Techniques in Motor Control: Reaction Time and Movement Time

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드