What is "apperceptive agnosia"

n. (context medicine English) A condition in which the eye forms a good image, but the mind cannot recognize distinct shapes etc.

Apperceptive agnosia is failure in recognition that is due to a failure of perception. In contrast, associative agnosia is a type of agnosia where perception occurs but recognition still does not occur. When referring to apperceptive agnosia, visual and object agnosia are most commonly discussed; This occurs because apperceptive agnosia is most likely to present visual impairments. However, in addition to visual apperceptive agnosia there are also cases of apperceptive agnosia in other sensory areas.