What Is Agnosia?
Reviewed: Dr. Gromatzky
1. Visual Agnosia
Visual agnosia can be divided into two subtypes: apperceptive visual agnosia (difficulty with relationship between objects) and associative visual agnosia (inability to recall information associated with an object). These two subtypes can be further divided into prosopagnosia (inability to recognize faces), achromatopsia (loss of color vision), akinetopsia (inability to perceive motion), and agnosia alexia (inability to recognize words/read). In patients with severe apperceptive visual agnosia, there may be residual visual defects due to the presence of diffuse and extensive occipital lesions.
