<unk>  is a form of visual agnosia. It is an impairment in recognition or assigning meaning to a stimulus that is accurately perceived and not associated with a generalized deficit in intelligence, memory, language or attention. The disorder appears to be very uncommon in a "pure" or uncomplicated form and is usually accompanied by other complex neuropsychological problems due to the nature of the etiology. Afflicted individuals can accurately distinguish the object, as demonstrated by the ability to draw a picture of it or categorize accurately, yet they are unable to identify the object, its features or its functions.
Associative visual agnosia
Apperceptive agnosia
Cortical visual impairment
Integrative agnosia
Visuospatial dysgnosia
Asomatognosia
Autotopagnosia
Auditory verbal agnosia