The criteria used to define and test for behavioral signs of "fearfulness" need to be reexamined in this case. One of the most common physiological deficits found in genetically altered mice is deafness. Even normal wild type mice cannot hear the human voice.
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The criteria used to define and test for behavioral signs of "fearfulness" need to be reexamined in this case. One of the most common physiological deficits found in genetically altered mice is deafness. Even normal wild type mice cannot hear the human voice.