<unk>  is an impairment in recognition of<unk> ly presented objects. It is not due to a deficit in vision (acuity,<unk>  field, and scanning), language, memory, or intellect. While cortical blindness results from lesions to primary<unk>  cortex,<unk>  is often due to damage to more anterior cortex such as the posterior occipital and/or temporal lobe(s) in the brain.2 There are two types of<unk> : apperceptive<unk>  and associative<unk> . Recognition of<unk>  objects occurs at two primary levels. At an apperceptive level, the features of the<unk>  information from the retina are put together to form a perceptual representation of an object. At an associative level, the meaning of an object is attached to the perceptual representation and the object is identified. If a person is unable to recognize objects because they cannot perceive correct forms of the objects, although their knowledge of the objects is intact (i.e. they do not have anomia), they have apperceptive<unk> . If a person correctly perceives the forms and has knowledge of the objects, but cannot identify the objects, they have associative<unk> .
Visual agnosia
Apperceptive agnosia
Auditory agnosia
Finger agnosia
Phonagnosia
Cynanthropy
Anosognosia
Binocular dysphoria