Psych 450 Exam 1 with answers

Psych 450 Exam 1 with answers |\ |\ |\ |\ |\




When I have you look at a face and measure the response
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of certain neurons, I am taking a ________________________
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measurement.
a. psychophysical
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b. phenomenological
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c. reaction time
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d. physiological - CORRECT ANSWERS ✔✔physiological
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The first part of the perceptual process is called the
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_________________________, and this involves the actual |\ |\ |\ |\ |\ |\



stimulus that is out in the environment. Regardless of the
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sensory modalities through which we experience it, the
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stimulus itself is separate from and outside of ourselves.
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a. distal stimulus
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b. proximal stimulus
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c. neural processing
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d. sensory processing - CORRECT ANSWERS ✔✔distal
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stimulus


If I am measuring your ability to detect a particular
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stimulus (let's say a light of a particular wavelength), then
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, I am interested in your __________________________ - the
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least amount of stimulus energy required for you to be
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able detect that a stimulus exists.
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a. magnitude estimation
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b. distinction threshold
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c. difference threshold
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d. absolute threshold - CORRECT ANSWERS ✔✔absolute
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threshold


If I present 5-9 different stimulus intensities randomly and
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ask you to state whether you see the stimulus or not, I
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am using the _________________________ to obtain a
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measure of your absolute threshold. |\ |\ |\ |\




a. method of limits
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b. method of adjustment
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c. method of constant stimuli
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d. naming task - CORRECT ANSWERS ✔✔method of
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constant stimuli |\




When a sensory neuron responds to some environmental
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stimulus, whether that be electromagnetic radiation |\ |\ |\ |\ |\ |\



hitting the photoreceptors of the eye or the changes in air
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pressure hitting the inner hair cells of the inner ear, the
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sensory neuron changes the environmental stimulus into
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electrochemical information that the brain can |\ |\ |\ |\ |\ |\

, understand in a process called |\ |\ |\ |\ |\



____________________________. |\




a. production
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b. conduction
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c. transduction
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d. neurotransmutation - CORRECT ANSWERS
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✔✔transduction


We have two kinds of photoreceptors lining the retina. We
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have 120 million ____________ per eye, which provide
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black & white vision, are more sensitive to dimmer light
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and lie only in the periphery, and we have 6 million
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____________, which provide color vision, more detailed |\ |\ |\ |\ |\ |\ |\



vision and many of them lie in the fovea.
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a. axons; dendrites
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b. bipolar cells; retinal ganglion cells
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c. rods; cones
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d. cones; rods - CORRECT ANSWERS ✔✔rods; cones
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A good estimate of what constitutes the visible spectrum
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for human beings when considering information from the
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electromagnetic spectrum includes wavelengths between |\ |\ |\ |\




a. 700 nanometers to 1 millimeter.
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b. 390 to 700 nanometers.
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