Ключевые слова: ad, alzheimer, assistance, atrophy, brain, care, class, cognition, cognitive, dementia, development, diagnosis, disease, disfunction, disorder, effort, elderly, game, health, health care, help, impairment, learn, learning, loss, medicine, memory, mental, neuropsychology, old, patient, play, practice, prevention, progress, psychology, puzzle, rehabilitation, response, senior, skill, stimulation, stimulus, stroke, sudoku, test, therapy, thinking, train, treatment,