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PSYCH 115 UCLA TEST 2 QUIZZES- QUESTIONS AND CORRECT ANSWERS
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What is an adequate stimulus for the eye? Select one: a. Opening your eyelids b. Mechanical pressure onto the photoreceptors c. Light that falls onto the photoreceptors d.Infrared light that reflects back from the eye e. Pupillary constriction c. Light that falls onto the photoreceptors The senso...

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  • August 12, 2024
  • 14
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • psych 115 ucla test 2 quizzes questions and corre
  • what is an adequate stimulus for the eye select o
  • the sensory systems of a given species are shaped

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  • PSYC 115
  • PSYC 115

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PSYCH 115 UCLA TEST 2 QUIZZES-
QUESTIONS AND CORRECT ANSWERS
What is an adequate stimulus for the eye?

Select one:
a. Opening your eyelids
b. Mechanical pressure onto the photoreceptors
c. Light that falls onto the photoreceptors
d.Infrared light that reflects back from the eye
e. Pupillary constriction ✅c. Light that falls onto the photoreceptors

The sensory systems of a given species are shaped by:
a. The environment where it lives
b. The type of prey it hunts
c. The type of predators it has
d. All of the above ✅a. The environment where it lives
b. The type of prey it hunts
c. The type of predators it has
d. All of the above

The star-nosed mole has an amazing organ that allows it to:

Select one:
1. Have an extraordinary sense of smell
2. Have an extraordinary sense of touch
3. Detect edible worms very fast
4. Both (1) and (3)
5. Both (2) and (3) ✅5. Both (2) and (3)

The ability to sense the environment and modify one's behavior accordingly is found in:

Select one:
a. Bacteria
b. Plants
c. Mammals
d. All of the above ✅d. All of the above

Receptor potentials are:

Select one:
a. Local changes in membrane potential
b. The potential of an ionic channel in a receptor cell

, c. The potential of a receptor to transduce a stimulus
d. The threshold needed for a receptor to generate an action potential ✅a. Local
changes in membrane potential

An example of coding by patterns of action potentials across one or more fibers include:

Select one:
1. The transduction of a single tone
2. The coding of sound direction
3. The coding of the surface texture of a material
4. Both (1) and (2)
5. Both (2) and (3) ✅5. Both (2) and (3)

Range fractionation solves the problem of cells having:

Select one:
a. Low thresholds
b. High thresholds
c. Low dynamic range
d. Large dynamic ran ✅c. Low dynamic range

The result(s) of adaptation is (are) that:

Select one:
a. Cells respond strongly to the onset of a stimulus but then decrease their spike rate
b. Cells respond better to changes in the stimulus
c. We fail to detect slow changes in the environment
d. All of the above ✅d. All of the above

Most sensory pathways go through ______ on their way to the cerebellar cortex

Select one:
a. The thalamus
b. The medulla
c. The cerebellar nuclei
d. The brainstem ✅a. The thalamus

Primary sensory cortex contains an organized map of the ______

Select one:
a. Body surface
b. Receptive fields
c. Dorsal root ganglia
d. None of the above ✅a. Body surface

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