By Dr. Brian McDonough, Medical Editor

PHILADELPHIA (CBS) – It is a fascinating phenomenon. It is called facial blindness. The condition is mostly inherited and people who are otherwise normal cannot see or remember faces.

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It has always been a mystery but Stanford researchers have isolated the problem to a part of the brain called the fusiform gyrus.

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A study patient had this area of his brain stimulated which led to him losing clear sight of a person’s face…..only the face. The knowledge of the anatomic cause of the condition might lead to treatments. It also reveals the complexity of the brain.

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The more we study the more we uncover.