What happens to the perception of pressure if a stimulus is applied continuously to a specific spot on the skin?
Answer
It fades in some receptive fields, but increases in others.
It increases over time.
It gradually fades.
It fades only if the pressure is pulsatile.
Question 2
Question
What route is taken by nerve fibres that carry information about pressure from the surface of the skin on the left side of the body?
Answer
past the spinal column and into the left temporal cortex
along the spinal meninges and terminating in the left parietal somatosensory cortex
through the spinal column and into the right frontal motor cortex
through the spinal column and into the right parietal somatosensory cortex
Question 3
Question
Which pain pathway transmits information about an injury that has just occurred?
Answer
fast
geniculate
slow
medial
Question 4
Question
Which pathway for pain results in the experience of pain being less localized and longer lasting?
Answer
endorphin
generic
slow
thalamic
Question 5
Question
What structures do neural transmission in the slow pain pathway depend on?
Answer
pulsating neural impulses called pain spindles
opponent process receptors in the area surrounding the injury
thicker, myelinated neurons called A-delta fibres
thin, unmyelinated neurons called C fibres
Question 6
Question
Catelin has had a slow throbbing pain in her ankle since she twisted it while in-line skating last week. Where are these pain signals travelling?
Answer
along thin, unmyelinated C fibres
through periacqueductal gray neurons in the midbrain
along ungated endorphin pathways in the hypothalamus
through thick, myelinated A-delta fibres
Question 7
Question
Derek dropped a hammer on his foot and shrieked a split second later at the intense pain from a newly broken toe. How did the almost instantaneous pain signals travel?
Answer
along thick, myelinated A-delta fibres
through periacqueductal gray neurons in the midbrain
along thin, unmyelinated C fibres
through gated endorphin pathways in the hypothalamus
Question 8
Question
Which of the following accurately describes the role of culture for pain perception?
Answer
Race has a larger impact on pain perception than does culture.
Culture has no impact on pain perception or attitudes toward pain.
Culture affects willingness to tolerate pain, but not the process of pain perception.
Cultural rules dictate the amount of pain experienced, but only above a certain innate threshold.
Question 9
Question
Which theory can account for the fact that people suffering from pain sometimes report pain relief from a sugar pill placebo?
Answer
cognitive control
sensory adaptation
perceptual constancy
gate control
Question 10
Question
Which of the following helps to explain an athlete’s ability to play with a broken foot and not feel the pain until much later?