Apperceptive Agnosia

Apperceptive agnosia is a form of visual agnosia in which a person cannot recognize objects because they are unable to form a correct perception of an object's shape, even though their basic vision, memory and general knowledge of the object remain intact. It is one of the two classic subtypes of visual agnosia, a condition that results from damage to the brain's visual association areas in the occipital or temporal lobes rather than the primary visual cortex; the underlying problem is in perceiving the object correctly in the first place, which is what distinguishes it from the other subtype, associative agnosia, in which perception is normal but recognition still fails. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/