Exam 2 answers

Exam 2 answers - NAME: _ PSYC 372 005 Fall 2009: EXAM 2 (A)...

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NAME: ________________________________________ PSYC 372 – 005 Fall 2009: EXAM 2 (A) MULTIPLE CHOICE (1 pt each): PLEASE WRITE THE LETTER OF THE BEST ANSWER IN THE SPACE PROVIDED. _____ 1. True or False: The LEFT visual field is projected onto the RIGHT side of the retina. a. True b. False _____ 2. The correct order of the cell layers of the retina, starting with the FURTHEST BACK in the eye and ending with the CLOSEST TOWARDS THE CENTER of the eye is: a. Bipolar, photoreceptive, ganglion b. Ganglion, bipolar, photoreceptive c. photoreceptive, bipolar, ganglion d. Ganglion, photoreceptive, bipolar _____ 3. The receptive field of a _______________ is a single point of light, while the receptive field of a _______________ is the sum of the activated receptive fields of lower cellular layers in the retina. a. Photoreceptor ; ganglion cell b. Ganglion cell ; photoreceptor _____ 4. ____________________ cells are the only cells in the retina that respond directly to light, while ____________________ cells are the only cells in the retina that fire action potentials. a. Photoreceptive cells ; Bipolar cells b. Bipolar cells ; Photoreceptive cells c. Photoreceptive cells ; Ganglion cells d. Ganglion cells ; Photoreceptive cells _____ 5. The optic nerve is made up of: a. Bipolar cell axons b. Ganglion cell axons c. Photoreceptive cell axons d. None of the above. 1
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_____ 6. Which of the following is NOT true concerning the differences between rods and cones? a. Cones respond to different wavelengths of light, while rods do not. b. Rods are mostly localized in the fovea, while cones are mainly localized in the periphery of the retina. c. Rods are bleached by very bright light, while cones are activated by very bright light. d. Rods are much more numerous than cones. _____ 7. Parvocellular ganglion cells have ________________ receptive fields while Magnocellular ganglion cells have ________________ receptive fields. a. large ; small b. foveal ; peripheral c. small ; large d. peripheral ; foveal _____ 8. True or False : In the primary visual cortex, the entire LEFT visual field is processed by the LEFT hemisphere, while the entire RIGHT visual field is processed by the RIGHT hemisphere. a. True b. False _____ 9. In the primary visual cortex, the center of our visual field has expanded representation compared to the periphery of our visual field. A reason for this expansion of the center of our visual field is: a. In the peripheral retina there is a “blind spot” and therefore a loss of receptors in the peripheral retina. Therefore, less information from the periphery reaches the primary visual cortex. b. More parvocellular ganglion cells project to the brain than magnocellular ganglion cells, and this connectivity continues through the thalamus and to the primary visual cortex. c.
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Exam 2 answers - NAME: _ PSYC 372 005 Fall 2009: EXAM 2 (A)...

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