The origins of geriatric psychiatry began with Alois Alzheimer, a German psychiatrist and neuropathologist who first identified amyloid plaques and neurofibrillary tangles in a fifty-year-old woman he called Auguste D. These plaques and tangles were later identified as being responsible for her behavioural symptoms, short-term memory loss, and psychiatric symptoms.[5] These brain anomalies would become identifiers of what later became known as Alzheimer's disease.[6]