EXSS 380 Final Exam UNC Actual study
set with Questions and correct/verified
Answers
1. Kinesthesia refers to ________.
A. Joint position sense
B. Sensation of the spatial orientation of body segments
C. Sensation of joint motion
D. Sensation of position in the field of gravity - ANSW-C: Sensation of joint motion
2. Whereas a (an) _______ loop system utilizes feedback in the generation of motor responses, a (an)
________ loop system is preprogrammed in nature.
A. open; closed
B. serial; parallel
C. closed; open
D. parallel; serial - ANSW-C: Closed;Open
3. Which of the following is an example of an open loop system?
A. Spinal stretch reflex
B. Tri-phasic agonists/antagonist activation pattern
C. Autogenic inhibition
D. Functional stretch reflex - ANSW-B: Tri-phasic agonists/antagonist activation pattern
4. An elbow flexion task is completed over a 100ms interval during which the biceps brachii is active for
50ms. If the duration
of the activity is increased to 300ms, for how long would we expect to see the biceps brachii active?
A. 50ms
B. 100ms
C. 300ms
D. 150ms - ANSW-D: 150 ms
5. A motor control researcher estimates grip force during a task where the goal is to pick up a mass
object for which the
appropriate grip and lifting forces are unknown (i.e. the weight is unknown). During the first trial, the
subject produces a
force of 2N in the finger flexors, and 6N in the thumb flexors, but is unsuccessful in picking up the object.
If in the second
trial the subject increases the force produced by the finger flexors to 8N, what force would we expect to
see in the thumb flexors?
A. 6N
B. 8N
, C. 12N
D. 24N - ANSW-D: 24N
6. Characteristics of a generalized motor program that can be altered are referred to as
A. invariant features
B. generalized features
C. relative features
D. parameters - ANSW-D: Parameters
7. A motor control researcher is conducting a choice reaction time investigation. In Experiment 1, the
subject must lift his/her
index finger off an electronic key, and then flex the shoulder as quickly as possible. In Experiment 2, the
subject must lift the
index finger off the electronic key, and then flex the shoulder as quickly as possible to bring the index
finger to a target. If
the stimulus is the same for both experiments, in which one would we expect a shorter reaction time?
A. Experiment I
B. Experiment 2
C. Both should display the same reaction time - ANSW-A: Experiment 1
8. A motor control researcher asks subjects to perform two tasks. The primary difference between the
two tasks is that one
involves more "movement parts" than the other. Though the stimulus for each task is identical, and the
subjects are aware of
the movement they are to perform, the researcher notices that the reaction time increased as the
number of movement parts
increased. What stage of information processing is most likely influenced by this experiment?
A. Stimulus identification
B. Response selection
C. Response programming - ANSW-C. Response programming
Rogers: same stimulus throughout
Donders: different stimuli mean different actions, choice is involved
9. According to Donder's Subtractive Theory, which of the following experimental conditions produces
the longest reaction time?
A. Simple reaction time tests
B. Go/No Go reaction time tests
C. Choice reaction time tests - ANSW-C. Choice reaction time tests
10. What is denoted by the area between 130 and 300 ms in the figure?
A. Spinal stretch reflex
B. Medium latency stretch reflex
set with Questions and correct/verified
Answers
1. Kinesthesia refers to ________.
A. Joint position sense
B. Sensation of the spatial orientation of body segments
C. Sensation of joint motion
D. Sensation of position in the field of gravity - ANSW-C: Sensation of joint motion
2. Whereas a (an) _______ loop system utilizes feedback in the generation of motor responses, a (an)
________ loop system is preprogrammed in nature.
A. open; closed
B. serial; parallel
C. closed; open
D. parallel; serial - ANSW-C: Closed;Open
3. Which of the following is an example of an open loop system?
A. Spinal stretch reflex
B. Tri-phasic agonists/antagonist activation pattern
C. Autogenic inhibition
D. Functional stretch reflex - ANSW-B: Tri-phasic agonists/antagonist activation pattern
4. An elbow flexion task is completed over a 100ms interval during which the biceps brachii is active for
50ms. If the duration
of the activity is increased to 300ms, for how long would we expect to see the biceps brachii active?
A. 50ms
B. 100ms
C. 300ms
D. 150ms - ANSW-D: 150 ms
5. A motor control researcher estimates grip force during a task where the goal is to pick up a mass
object for which the
appropriate grip and lifting forces are unknown (i.e. the weight is unknown). During the first trial, the
subject produces a
force of 2N in the finger flexors, and 6N in the thumb flexors, but is unsuccessful in picking up the object.
If in the second
trial the subject increases the force produced by the finger flexors to 8N, what force would we expect to
see in the thumb flexors?
A. 6N
B. 8N
, C. 12N
D. 24N - ANSW-D: 24N
6. Characteristics of a generalized motor program that can be altered are referred to as
A. invariant features
B. generalized features
C. relative features
D. parameters - ANSW-D: Parameters
7. A motor control researcher is conducting a choice reaction time investigation. In Experiment 1, the
subject must lift his/her
index finger off an electronic key, and then flex the shoulder as quickly as possible. In Experiment 2, the
subject must lift the
index finger off the electronic key, and then flex the shoulder as quickly as possible to bring the index
finger to a target. If
the stimulus is the same for both experiments, in which one would we expect a shorter reaction time?
A. Experiment I
B. Experiment 2
C. Both should display the same reaction time - ANSW-A: Experiment 1
8. A motor control researcher asks subjects to perform two tasks. The primary difference between the
two tasks is that one
involves more "movement parts" than the other. Though the stimulus for each task is identical, and the
subjects are aware of
the movement they are to perform, the researcher notices that the reaction time increased as the
number of movement parts
increased. What stage of information processing is most likely influenced by this experiment?
A. Stimulus identification
B. Response selection
C. Response programming - ANSW-C. Response programming
Rogers: same stimulus throughout
Donders: different stimuli mean different actions, choice is involved
9. According to Donder's Subtractive Theory, which of the following experimental conditions produces
the longest reaction time?
A. Simple reaction time tests
B. Go/No Go reaction time tests
C. Choice reaction time tests - ANSW-C. Choice reaction time tests
10. What is denoted by the area between 130 and 300 ms in the figure?
A. Spinal stretch reflex
B. Medium latency stretch reflex
