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________ results from a cornea with too much refractive power….
________ results from a cornea with too much refractive power.
Group of answer choices
Hyperopia
Myopia
Presbyopia
Astigmatism
Flag question: Question 17Question 172 pts
Our “central” vision (what we are focusing on) has much better resolution than our peripheral vision. What can be said about the cell properties for our central vision?
Group of answer choices
They are no different than any other visual cell.
They have larger receptive fields.
They have higher thresholds.
They have smaller receptive fields.
Flag question: Question 18Question 182 pts
A lesion to just one side to the spinal cord will result in the loss of _____ on the same side of the body and loss of _____ on the opposite side of the body below the site of the damage.
Group of answer choices
temperature and touch; pain
pain and temperature; touch
pain and touch; temperature
touch; pain and temperature
Flag question: Question 19Question 192 pts
Hapsis is the perception of:
Group of answer choices
touch.
the location of one’s body in space.
chemical irritants.
pain.
Flag question: Question 20Question 202 pts
Our ability to localize the source of pain is the _______ dimension of pain.
Group of answer choices
sensory-discriminative
affective-motivational
proprioceptive
cognitive-evaluative
Flag question: Question 21Question 212 pts
Which subregion of the primary somatosensory cortex would respond best to moving stimuli?
Group of answer choices
1
3a
2
3b
Flag question: Question 22Question 222 pts
Green light presented entirely within the surround of a red (on-center)-green (off-surround) color opponent retinal ganglion cell would result in:
Group of answer choices
no impact on the cell whatsoever.
a weak response (i.e., a decrease in firing).
a strong response (i.e., an increase in firing).
a very strong response (i.e., a large increase in firing).
Flag question: Question 23Question 232 pts
What type of receptor MUST be activated to create neuropathic pain?
Group of answer choices
TRPA1
TRPv2
TRPv1
None of these must be activated
Flag question: Question 24Question 242 pts
Which of the following produces analgesia?
Group of answer choices
swearing
all choices are true
opiate drugs
hypnosis
Flag question: Question 25Question 252 pts
The opponent-color for red is _____, while the opponent-color for blue is _____.
Group of answer choices
orange; purple
green; yellow
yellow; green
purple; yellow
Flag question: Question 26Question 262 pts
“Second pain” is carried by:
Group of answer choices
Ad fibers
S fibers
Aß fibers
C fibers
Flag question: Question 27Question 272 pts
What feature of Pacinian corpuscles allows them to be responsive to movement?
Group of answer choices
They are rapidly adapting
They are located in the fingertips
They are slowly adapting
They have high thresholds
Flag question: Question 28Question 282 pts
Since shingles usually infects a single dorsal root, it can reveal patterns of:
Group of answer choices
touch vs. pain processing
axon conduction velocity
spinal cord organization
dermatomes
Flag question: Question 29Question 292 pts
Opiate drugs activate the PAG by:
Group of answer choices
activating inhibitory neurons.
activating C fibers.
directly exciting descending PAG efferents
inhibiting inhibitory neurons.
Flag question: Question 30Question 302 pts
Pain in internal organs that is felt as pain at the body surface is known as:
Group of answer choices
transferred pain.
referred pain.
transposed pain.
relocated pain.
