Question 1

How small of a separation can be detected using the two-point threshold technique?

Accepted Answer

A)   70 mm
B)   30 mm
C)   20 mm
D)   2 mm

Question 2

The theory of Mountcastle and the research by Merzenich and others have shown that the synapses associated with touch are continuously being affected by one's experiences. This suggests that the neuronal connections supporting touch are

Accepted Answer

A)   plastic.
B)   multisynaptic.
C)   diffuse fibers.
D)   none of these

Question 3

Allodynia is

Accepted Answer

A)   perception of pain from a nonpainful stimulus.
B)   release from pain fibers of chemicals causing inflammation.
C)   contraction of the muscles around the site of an injury.D. the balance of activity between A? and C fibers.

Question 4

What is the distinction between touch sensitivity and touch acuity?

Accepted Answer

Touch sensitivity and touch acuity are t...

Question 5

Which of the following is NOT true?

Accepted Answer

A)   The somatosensory cortex is divisible into several subdivisions, each with its own touch map.
B)   The somatosensory area of the left hemisphere receives input from the left side of the body.
C)   Some areas of the body receive a more detailed representation in the brain than do others.
D)   The lemniscal pathway carries input to somatosensory cortex.

Question 6

Touch may clarify an object's perceived shape by

Accepted Answer

A)   concurrent activation of somatosensory brain areas and visual brain areas.
B)   concurrent activation of receptors from skin, muscle, and tendons.
C)   concurrent activation of S-I and S-II.
D)   concurrent activation of all four types of mechanoreceptors.

Question 7

If a person is holding a cube out of sight and at the same time is looking at a cotton-stuffed rubber glove holding a similar cube,

Accepted Answer

A)   accuracy in detecting vibration to the hand is uninfluenced by a light in the same place on the glove.
B)   accuracy in detecting vibration to the hand is increased by a light in the same place on the glove.
C)   accuracy in detecting vibration to the hand is decreased by a light in the same place on the glove.D accuracy in detecting vibration to the hand is uninfluenced by a light in the same place on the glove if . the person had been told to ignore the light.

Question 8

Which one of the following is NOT a type of fiber associated with perceiving the temporal properties associated with touch?

Accepted Answer

A)   slowly adapting fibers
B)   rapidly adapting fibers
C)   punctate fibers
D)   all of these are associated with perceiving temporal properties

Question 9

The region of the body exhibiting greatest sensitivity to vibration is

Accepted Answer

A)   the fingertips.
B)   the lips.
C)   the palm.
D)   the back.

Question 10

The ability to distinguish between two simultaneous deformations of the skin is referred to as

Accepted Answer

A)   touch acuity.
B)   localization ability.
C)   grating perception.
D)   none of these

Question 11

If told that a very cold object is very hot, volunteers

Accepted Answer

A)   experienced it as hotter than did volunteers told it was very cold.
B)   experienced it as colder than did volunteers told it was very cold.
C)   experienced it as more painful than did volunteers told it was very cold.
D)   experienced it as less painful than did volunteers told it was very cold.

Question 12

According to the textbook, our localization ability by touch

Accepted Answer

A)   is poor.
B)   is fair.
C)   is good.
D)   depends on the part of the body being stimulated.

Question 13

Sensitivity to vibrotactile stimulation is greatest for vibration frequencies around

Accepted Answer

A)   50 Hz.
B)   100 Hz.
C)   150 Hz.
D)   200 Hz.

Question 14

Aristotle found that if two adjacent fingers are crossed and touch a singular object, the perception is of touching two separate objects. This phenomenon of "double touch" has been labeled

Accepted Answer

A)   phantom limb.
B)   plasticity.
C)   diplesthesia.
D)   none of these

Question 15

Why is proprioceptive information crucial for haptics?

Accepted Answer

Proprioceptive information is crucial fo...

Question 16

When uncertain about where to expect a tactile stimulus, we tend to

Accepted Answer

A)   have more difficulty identifying the stimulus.
B)   be more sensitive to touch stimulation all over the body.
C)   use a different set of mechanoreceptors for touch.
D)   try harder to identify it, thus making fewer errors.

Question 17

Calluses of the skin on the fingers can

Accepted Answer

A)   amplify pressure changes in the skin when one touches an object.
B)   make smoothly textured fabrics more enjoyable to touch.
C)   degrade the ability to judge an object's shape from touching it.
D)   reduce the perceived roughness of a touched surface.

Question 18

Haptics and vision provide

Accepted Answer

A)   complementary sources of information.
B)   confusing sources of information.
C)   essentially identical sources of information.
D)   independent sources of information.

Question 19

The sense of our limb position is called

Accepted Answer

A)   kinesthesis.
B)   negative feedback.
C)   touch-sight.
D)   exploratory actions.

Question 20

Mechanoreceptors are specialized cells that

Accepted Answer

A)   register the mechanical resistance of the muscles.
B)   innervate the mechanical action of the muscles.
C)   transform mechanical energy into heat.
D)   register mechanical pressure from deformation of the skin.

Exam 13: Touch

If told that a very cold object is very hot, volunteers

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The sense of our limb position is called

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Calluses of the skin on the fingers can

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When uncertain about where to expect a tactile stimulus, we tend to

Correct AnswerverifiedShow Answer

Why is proprioceptive information crucial for haptics?

Correct AnswerAnswered by ExamLex AIProprioceptive information is crucial fo...View AnswerShow Answer

Touch may clarify an object's perceived shape by

Correct AnswerverifiedShow Answer

How small of a separation can be detected using the two-point threshold technique?

Correct AnswerverifiedShow Answer

If a person is holding a cube out of sight and at the same time is looking at a cotton-stuffed rubber glove holding a similar cube,

Correct AnswerverifiedShow Answer

The ability to distinguish between two simultaneous deformations of the skin is referred to as

Correct AnswerverifiedShow Answer

Aristotle found that if two adjacent fingers are crossed and touch a singular object, the perception is of touching two separate objects. This phenomenon of "double touch" has been labeled

Correct AnswerverifiedShow Answer

The region of the body exhibiting greatest sensitivity to vibration is

Correct AnswerverifiedShow Answer

Which one of the following is NOT a type of fiber associated with perceiving the temporal properties associated with touch?

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What is the distinction between touch sensitivity and touch acuity?

Correct AnswerAnswered by ExamLex AITouch sensitivity and touch acuity are t...View AnswerShow Answer

Which of the following is NOT true?

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Mechanoreceptors are specialized cells that

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Allodynia is

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The theory of Mountcastle and the research by Merzenich and others have shown that the synapses associated with touch are continuously being affected by one's experiences. This suggests that the neuronal connections supporting touch are

Correct AnswerverifiedShow Answer

Haptics and vision provide

Correct AnswerverifiedShow Answer

Sensitivity to vibrotactile stimulation is greatest for vibration frequencies around

Correct AnswerverifiedShow Answer

According to the textbook, our localization ability by touch

Correct AnswerverifiedShow Answer

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Proprioceptive information is crucial fo...
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Touch sensitivity and touch acuity are t...
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