Behavioral psychologists apprehend that conditioned fear responses to

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问题          Behavioral psychologists apprehend that conditioned fear responses to a
   tone previously paired with a shock diminish, if the tone is repeatedly presented
   without the shock, a process known as extinction. Since Pavlov it has been
Line hypothesized that this extinction does not erase conditioning, but forms a new
(5)    memory. Research has now demonstrated that destruction of the infralimbic
   cortice blocks recall of fear extinction, indicating that it might store long-term
   extinction memory. Infralimbic neurons recorded during fear conditioning and
   extinction fire to the tone only when rats are recalling extinction on the
   following day, and rats indicating the least fear responses also demonstrate the
(10) greatest increase in infralimbic tone responses. Conditioned tones paired with
   brief electrical stimulation of infralimbic cortex elicit low fear responses in rats
   that have not undergone extinction. Thus, stimulation resembling extinction-
   induced infralimbic tone responses is able to simulate extinction memory. [br] Which of the following most accurately describes the passage?

选项 A、A description of a replicable experiment
B、A summary report of new findings
C、A recommendation for pursuing a new area of research
D、A refutation of an earlier hypothesis
E、A confirmation of an earlier research

答案 B

解析

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