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- Covert facial recognition is the unconscious recognition of familiar faces by people with prosopagnosia. The individuals who express this phenomenon are unaware that they are recognizing the faces of people they have seen before. Joachim Bodamer created the term prosopagnosia in 1947. Individuals with this disorder do not have the ability to overtly recognize faces, but discoveries have been made showing that people with this disorder have the ability to covertly recognize faces. There are two types of prosopagnosia, congenital and acquired. Congenital prosopagnosia is an inability to recognize faces without a history of brain damage; while acquired prosopagnosia is caused by damage to the right occipital-temporal region of the brain. In the 1950s it was theorized that the right cerebral hemisphere was involved in facial recognition and in the 1960s this theory was supported by many experiments. Although the ability for overt facial recognition is inhibited in patients with prosopagnosia, there have been many studies done which show that some of these individuals may have the ability to recognize familiar faces covertly. These experiments have used behavioral and physiological measures in order to demonstrate covert facial recognition. A common physiological measure that is used is the measure of autonomic activity by using skin-conductance responses (SCR) which show a larger response in individuals with prosopagnosia who are shown pictures of familiar faces compared to pictures of unfamiliar faces. (en)
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- Covert facial recognition is the unconscious recognition of familiar faces by people with prosopagnosia. The individuals who express this phenomenon are unaware that they are recognizing the faces of people they have seen before. Joachim Bodamer created the term prosopagnosia in 1947. Individuals with this disorder do not have the ability to overtly recognize faces, but discoveries have been made showing that people with this disorder have the ability to covertly recognize faces. (en)
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- Covert facial recognition (en)
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