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Developmental prosopagnosia is a lifelong condition that impairs a person's ability to recognize faces, in the absence of sensory visual problems and intellectual impairment. People with this condition have normal intelligence and memory, typical low-level vision, and no history of brain injury. They typically learn to use non-face cues including voice, walking style (gait) and hairstyle to recognize others. Symptoms that may vary include whether a person can perceive facial expressions normally, or recognize objects normally. The underlying genetic cause of developmental prosopagnosia is not yet known. Familial reports of this condition are consistent with autosomal dominant inheritance.
Developmental prosopagnosia differs from acquired prosopagnosia, in which a person develops face recognition difficulties as a result of brain injury (for example, from a stroke or trauma).
Source: GARD Last updated on 05-01-20
Developmental prosopagnosia may be more common in people with autism spectrum disorder than in the general population. However, the two conditions are distinct. Many people have or develop autism spectrum disorder in the absence of prosopagnosia, and many people with prosopagnosia have no signs or symptoms of autism.
Developmental prosopagnosia is considered a neurodevelopmental condition, similar to dyslexia, dyspraxia, dyscalculia, and autism spectrum disorder. Neurodevelopmental conditions typically become apparent early in development and cause impairments of personal, social, academic, or occupational functioning. Many neurodevelopmental conditions are known to co-occur. Genetic or environmental factors (often unknown) that cause someone to develop a neurodevelopmental condition appear to increase their chances of having or developing others.
Last updated on 05-01-20
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