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article_snippet: It is hoped that the findings will help develop treatments for people suffering with psychological disorders.
article_snippet: Psychologists from The City University of New York trained rats to become scared when Psychologists from The City University of New York heard a particular sound.
article_snippet: Scientists assumed the creatures were frightened when the creatures froze.
article_snippet: Hours later, when the same sound was played to the rats, those who had been given ordinary food froze.