Apperceptive agnosia
Each patient that suffers from apperceptive agnosia does not have brain damage in exactly the same area. However, brain damage in proximity to the occipital lobe is largely correlated with the patterns of deficit seen in apperceptive agnosics. For example, patient JB suffered extensive damage to the parietal-occipital areas to the left cerebral hemisphere leading to his deficit in the ability to name distinguish between structurally similar object.
Social-emotional agnosia
Damage to the right temporal occipital region in humans has been associated with the inability to recognize the faces of loved ones, friends, and pets (considered a form of prosopagnosia). This limits the ability to appropriately interact with familiar people, potentially severely damaging interpersonal relationships. People with social-emotional agnosia may distance themselves from interacting with other people and prefer isolation. Maternal behavior is also severely affected, causing mothers to fail to recognize their children as their own. In human children, deficits in imitating and responding to peer social interactions have been observed. Children with this agnosia have also been found to have hyperorality, an increased tendency to investigate objects with their mouths, which is also a common symptom of Klüver-Bucy syndrome.