Ключевые слова: alzheimer, apartment, brain, casual, caucasian, cognitive impairment, concept, dementia, disease, elder, elderly, grey hair, head, home, idea, indoors, injury, jigsaw, living room, male, man, medical, medicine, memory, mental, mental health, mind, neurology, objects, old, parkinson, pensioner, people, person, pieces, playing, problem, puzzles, retired, retirement, sad, senior, shape, symbol, table, trauma, treatment, upset,