MEMORIES. Others can't recall facts or past experiences.People with amnesia usually retain the knowledge of their own identity, as well as motor skills.Mild memory loss is a normal part of aging.Agnosia:Agnosia is the general term for the inability, due to brain damage, to recognize PREVIOUSLY familiar objects.At the highest level, then, it may be regarded as a deficit of the “what” system.Object recognition may ALSO fail because of disruption to an earlier STAGE of processing.Aphasia:It affects reading comprehension or speech production.A child speaks in short, fragmented phrases (EXPRESSIVE aphasia).Also, a child is not able to write, hence, it’s a language impairment.Adipsia:Adipsia is a disease characterized by the absence of thirst even in the presence of body water depletion or salt excess.It is a rare condition that typically presents as hypernatremic dehydration.The cause is usually a hypothalamic lesion, which can be congenital or acquired.The term hypodipsia refers to a partial deficiency of the thirst mechanism. Hence, Loss of memory power is referred to as Amnesia.