Fearless mice? Study shows parasite could change brain chemistry

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by CBS News

KMOV.com

Posted on September 24, 2013 at 8:21 AM

(CBS) A new study demonstrates that when mice are infected with a common parasite, they appear to lose their fear of cats. Professor of Medicine at the University of Southern California Dr. David Agus joins "CBS This Morning" to break down the study and explain how it could help doctors understand how disease shapes and even changes the human brain.

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