Question 1

The loudness,pitch,and timbre of a sound are directly related to the __________,respectively,of the vibrations that produced it.

Accepted Answer

A)   frequency, amplitude, and complexity
B)   amplitude, complexity, and frequency
C)   amplitude, frequency, and complexity
D)   complexity, frequency, and amplitude
E)   none of the above

Question 2

The modern model of sensory system organization features three important principles.Name them and explain them.Draw a representation of the modern model.

Accepted Answer

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Question 3

The conventional view that all tastes are encoded by various combinations of activity in five primary taste receptors has a problem:

Accepted Answer

A)   No receptors have been discovered for salty and sour.
B)   Evidence suggests that there may be more than five primary tastes.
C)   Many tastes cannot be created from combinations of the five current primaries.
D)   Thirty receptors have been discovered for bitter.
E)   all of the above

Question 4

The chemical senses are unique in several ways.Describe and discuss two ways in which either the gustatory or olfactory systems is different from other sensory systems.

Accepted Answer

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Question 5

All of the olfactory receptor cells with the same receptor protein

Accepted Answer

A)   are located in the same part of the mucosa.
B)   are located throughout the mucosa.
C)   project to the same locations (glomeruli)  on the olfactory bulbs.
D)   both A and C
E)   both B and C

Question 6

A hierarchical system is one in which

Accepted Answer

A)   there is one absolute top.
B)   there is one absolute bottom.
C)   each element has specific levels or ranks with respect to one another.
D)   no two elements are at the same level.
E)   there is no cortical involvement.

Question 7

The organ of Corti comprises the tectorial membrane,hair cells,and __________ membrane.

Accepted Answer

The answer of The organ of Corti comprises the tectorial...

Question 8

Electrical stimulation of which of the following structures has analgesic effects?

Accepted Answer

A)   SII
B)   periaqueductal gray
C)   paraventricular nuclei
D)   ventral posterior nuclei
E)   medial lemniscus

Question 9

Evidence suggests that humans have about __________ different types of olfactory receptors.

Accepted Answer

A)   3
B)   5
C)   7
D)   16
E)   300

Question 10

Selective attention

Accepted Answer

A)   improves the perception of stimuli that are its focus.
B)   has no effect on perception.
C)   seems to depend totally on thalamic mechanisms.
D)   seems to depend totally on changes in receptors.
E)   blocks out, just slightly, the perception of those stimuli that are its focus.

Question 11

The descending PAG-raphé-dorsal-column circuit has been hypothesized to mediate

Accepted Answer

A)   some types of pain.
B)   some types of analgesia.
C)   touch.
D)   audition.
E)   stereognosis.

Question 12

The sensory organs of the vestibular system

Accepted Answer

A)   maintain balance.
B)   activate one branch of cranial nerve VIII.
C)   are the semicircular canals.
D)   all of the above
E)   both A and B

Question 13

The dorsal-column medial-lemniscus system and the anterolateral system both carry sensory information from the

Accepted Answer

A)   eyes.
B)   ears.
C)   skin.
D)   nose.
E)   mouth.

Question 14

Electrical stimulation of the periaqueductal gray (PAG) produces

Accepted Answer

A)   opiates.
B)   serotonin.
C)   analgesia.
D)   opiate receptors.
E)   pain.

Question 15

Which of the following somatosensory structures do NOT receive substantial input from the anterolateral system?

Accepted Answer

A)   dorsal column nuclei
B)   tectum
C)   reticular formation
D)   colliculi
E)   thalamus

Question 16

Areas of neocortex that receive most of their input from the thalamic relay nuclei of one sensory system are classified as

Accepted Answer

A)   association cortex.
B)   tertiary cortex.
C)   motor cortex.
D)   secondary sensory cortex.
E)   primary sensory cortex.

Question 17

The major auditory projections of the inferior colliculi go to the

Accepted Answer

A)   cochlear nuclei.
B)   medial geniculate nuclei.
C)   lateral geniculate nuclei.
D)   superior olives.
E)   auditory nerve.

Question 18

The primary auditory cortex is in the

Accepted Answer

A)   temporal lobe.
B)   lateral fissure.
C)   occipital lobe.
D)   frontal lobe.
E)   both A and B

Question 19

Evidence suggests that the anterior cingulate cortex plays a major role in the

Accepted Answer

A)   expectation of pain.
B)   adaptive responses to minimize pain.
C)   emotional reaction to pain.
D)   perception of pain.
E)   all of the above

Question 20

Tinnitus

Accepted Answer

A)   always accompanies hearing loss.
B)   is always cured by cutting the contralateral auditory nerve.
C)   is always cured by cutting the ipsilateral auditory nerve.
D)   both A and C
E)   none of the above

Exam 7: Mechanisms of Perception

Which of the following somatosensory structures do NOT receive substantial input from the anterolateral system?

Correct AnswerverifiedShow Answer

The primary auditory cortex is in the

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The dorsal-column medial-lemniscus system and the anterolateral system both carry sensory information from the

Correct AnswerverifiedShow Answer

The sensory organs of the vestibular system

Correct AnswerverifiedShow Answer

The loudness,pitch,and timbre of a sound are directly related to the __________,respectively,of the vibrations that produced it.

Correct AnswerverifiedShow Answer

Areas of neocortex that receive most of their input from the thalamic relay nuclei of one sensory system are classified as

Correct AnswerverifiedShow Answer

Evidence suggests that the anterior cingulate cortex plays a major role in the

Correct AnswerverifiedShow Answer

Evidence suggests that humans have about __________ different types of olfactory receptors.

Correct AnswerverifiedShow Answer

The descending PAG-raphé-dorsal-column circuit has been hypothesized to mediate

Correct AnswerverifiedShow Answer

Selective attention

Correct AnswerverifiedShow Answer

Electrical stimulation of the periaqueductal gray (PAG) produces

Correct AnswerverifiedShow Answer

The major auditory projections of the inferior colliculi go to the

Correct AnswerverifiedShow Answer

The chemical senses are unique in several ways.Describe and discuss two ways in which either the gustatory or olfactory systems is different from other sensory systems.

Correct Answerverified50% for de...View AnswerShow Answer

All of the olfactory receptor cells with the same receptor protein

Correct AnswerverifiedShow Answer

Electrical stimulation of which of the following structures has analgesic effects?

Correct AnswerverifiedShow Answer

Tinnitus

Correct AnswerverifiedShow Answer

A hierarchical system is one in which

Correct AnswerverifiedShow Answer

The conventional view that all tastes are encoded by various combinations of activity in five primary taste receptors has a problem:

Correct AnswerverifiedShow Answer

The modern model of sensory system organization features three important principles.Name them and explain them.Draw a representation of the modern model.

Correct Answerverified25% for naming and discussing ...View AnswerShow Answer

The organ of Corti comprises the tectorial membrane,hair cells,and __________ membrane.

Correct AnswerverifiedShow Answer

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