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UIUC PSYC 210 - Practice Exam 1

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Name_______________________UID #_______________________PSYCH 210PRACTICE EXAMSPRINGPlease print your name and University of Illinois ID number in the upper right hand corner of this pageand sign on the line in the lower left hand corner. Remember to fill in your name, UID number, NETID and which form you received on your Scantron answer sheet. When you are finished with the test (or at the end of the class period), turn in this cover sheet along with your answer form and present your university ID for identification. You may keep the rest of the test booklet._________________________________________Student’s signature11. Following an action potential, there is a refractory period of about 1 msec A. while a phosphorylation of ligand-gated calcium channels restores the mitochondrial resting potentialB. during which neuromodulators rest the graded equilibrium potentialsC. after which sodium/potassium pumps cause the release of synaptic vesicles from intracellular storesD. during which sodium channels are inactivated and another action potential can not be produced.2. When a neuron becomes depolarized enough to reach its threshold voltageA. voltage-gated sodium and potassium channels open to produce an action potentialB. calcium channels close to release neurotransmitter from intracellular storesC. ligand-gated channels cause potassium to enter the cell and sodium to leave which produces a receptor potential of +30 mVD. an equilibrium potential is produced by the open of voltage-gated ligand channels3. In the movie Showboat, bass William Warfield (a University of Illinois professor) sings Old Man River. The low frequencies in his bass voice A. activate the tensor tympani and stapedius muscles so that you can effectively use cochlear nucleus neurons to localize the source of the soundB. produce the largest vibrations of the basilar membrane near the apex of the cochlea where the membrane is wide and floppyC. vibrate the stria vascularis near the base of the cochlea where the stria is narrow and stiffD. produce almost no vibrations in the tympanic membrane near the base of the cochlea where the membrane is wide and floppy4. The thalamus A. contains neurons that create complex and hypercomplex receptive fields by combining adjacent several simple receptive fields of retinal ganglion cellsB. is located in the center of the brain and is a mandatory relay structure for somatosensory, auditory and visual informationC. controls the smooth pursuit phase of eye movements in response to auditory and somatosensory stimuliD. is located dorsal to the corpus callosum and integrates information from the what and wherepathways to focus visual attention5. The central nervous system containsA. the twelve cranial nerves and the spinal nervesB. the sympathetic and parasympathetic nervous systemsC. the brain and spinal cordD. the somatic and autonomic nervous systems26. After visual information is process in primary occipital cortex, the identification of visual objects is performed in the “what” visual stream inA. temporal cortexB. parietal cortexC. frontal cortexD. cingulate cortex7. Simple receptive fields areA. created in the superior colliculus to control the smooth pursuit phase of eye movementsB. found both in the retina and in the lateral geniculate nucleusC. formed in the peripheral part of the retina by combining the inputs from rods and conesD. formed in primary visual cortex by combining adjacent center/surround receptive fields8. Blind people read the raised dots on paper that make up the Braille alphabet using their fingertips becauseA. receptors there have the smallest receptive fields which produces greater tactile acuityB. the unmeylinated axons of the receptors transmit the tactile information without loss because of the regeneration of the receptor potential at each point along the axonC. tactile information is preserved by the convergence of many dermatomes onto dorsal horn neurons which perform the basic character recognitionD. descending inputs from the tegmentum modulate the transduction of tactile information to increase the size of the receptive fields and maximize acuity9. In the region outside of the fovea (namely in the periphery of the retina),A. there are mostly cones and this region provides us with very good acuityB. many rods provide the input to one retinal ganglion cell to increase sensitivity to low levels of lightC. binocular information is integrated to change simple into complex receptive fieldsD. receptors are rapidly depolarized by light to increase sensitivity to fine details10. The volley theory of pitch perception relies onA. the tonotopic map that arises in the vibrations of the tympanic membrane and is maintained through the superior colliculus and lateral geniculate nucleusB. the timing of action potentials in the outer hair cells of the cochleaC. the temporal pattern of action potentials, namely, the number of action potentials per secondand the intervals between action potentialsD. amplification of the sound by the pinna to differentiate high frequencies from low frequencies311. When you hit your thumb with a hammer you first feel a sharp, mechanical pain followed by an intense diffuse pain becauseA. the sharp pain releases second messengers from oligodendrocytes that diffuse through the blood stream and reach the brain firstB. the fibers mediating the sharp pain are myelinated and send information faster than the unmyelinated fibers that mediate the signaling of the diffuse painC. the Schwann cells in the ventral horn that mediate the sharp pain send their axons directly to the thalamus in contrast to the axons of the oligodendrocytes in the dorsal horn that synapse on relay neurons in the medullaD. regeneration of the receptor potential occurs faster in the tight junctions along the axons that mediate the sharp pain than in the nodes of Ranvier of the axons that mediate the diffuse pain12. The right cerebral hemisphere processes A. somatosensory information received directly from the spinal cord via the spino-cortical tract of CortiB. auditory information in parietal cortex and somatosensory information in occipital cortexC. visual information from the right visual field in the anterior parietal cortex and visual information from the left visual field in the anterior temporal cortexD. somatosensory, auditory and visual information from the left half of our sensory world13. The place theory of pitch perception relies on theA. the tonotopic map


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