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are broken down before they are releasedb. inhibit the postsynaptic cellc. are released by the postsynaptic celld. are produced in the axon terminalsQuestion 111 out of 1 pointsIf some of the synapses onto a cell have been highly active and others have not, only the active ones become strengthened. This is known as the property of ____.Selected Answer:d. specificityAnswers:a. associativityb. NMDAc. cooperativityd. specificityQuestion 12
1 out of 1 pointsProducing long-term potentiation of cells in the mammalian nervous system requires ____.Selected Answer:c. a burst of many stimuli within a few secondsAnswers:a. a simultaneous pairing of an excitatory stimulus and an inhibitory stimulusb. minutes of uninterrupted inhibitory stimulationc. a burst of many stimuli within a few secondsd. many stimuli spaced at exactly equal intervals over a period of minutesQuestion 131 out of 1 pointsAfter his surgery, H.M. had the most difficulty with ____.Selected Answer:d. being able to define new English wordsAnswers:a. remembering events long before the surgeryb. IQ testsc. learning new procedural tasksd. being able to define new English wordsQuestion 141 out of 1 pointsA rat with hippocampal damage has difficulty with the Morris water maze because it ____.Selected Answer:c. has difficulty remembering where the platform is from trial to trialAnswers:a. cannot remember how to swimb. develops a water phobiac. has difficulty remembering where the platform is from trial to triald.
loses its motivation to find the platformQuestion 151 out of 1 pointsLashley trained rats on a variety of mazes, then made deep cuts in their cortexes. He found that the cuts produced ____.Selected Answer:a. little apparent effectAnswers:a. little apparent effectb. day-to-day fluctuations in performancec. a permanent impairmentd. a temporary impairmentQuestion 161 out of 1 pointsWhat is one explanation for why Lashley failed at finding the engram?Selected Answer:b. Some memories do not depend on the cortex.Answers:a. Classical conditioning had not been discovered yet.b. Some memories do not depend on the cortex.c. The engram is continually changing location in the cortex.d. He used poor surgical methods.Question 171 out of 1 pointsThe patient H.M. suffered severe memory disorders following a surgical operation that removed the ____.Selected Answer:d. hippocampusAnswers:a. lateral interpositus nucleus and hypothalamusb. corpus callosum
c. prefrontal cortex and dorsomedial thalamusd. hippocampusQuestion 181 out of 1 pointsStrong stimulation anywhere on the skin of an Aplysia excites axons that attach to receptors and ____.Selected Answer:a. close potassium channels in the membraneAnswers:a. close potassium channels in the membraneb.