There are two classifiable degrees of severity of this condition. Associative prosopagnosia is the common form of the disorder. People with this variety cannot identify specific people but can identify the differences between faces and may even be able to discern gender and age. Apperceptive prosopagnosia is the more severe of the two. These individuals cannot recognize familiar or unfamiliar faces but may be able to tell someone's age or gender, suggesting they have some facial reconstruction ability.

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