The consequences of being given a chronological age.
A dementia involving a progressive atrophy of cortical tissue and marked by memory impairment, intellectual deterioration, and in more extreme cases, involuntary movement of limbs, occasional convulsions, and psychotic behavior.
The consequences of having been born in a given year and having grown up during a particular time period with its own unique pressures, problems, challenges, and opportunities.
A state of great mental confusion in which consciousness is clouded, attention cannot be sustained, and the stream of thought and speech is incoherent. The person is probably disoriented, emotionally erratic restless of lethargic, and often has illusions, delusions and hallucinations.
Deterioration of mental faculties - memory, judgement, abstract though, control of impulses, intellectual ability - that impairs social and occupational functioning and eventually changes the personality.
Dementia with Lewy bodies (DLB)
Form of dementia recently categorized as distinct form Parkinson's disease; characterized by shuffling gait, memory loss, and hallucinations and delusions.
A state of mental confusion with respect to time, place, identity of self, other persons, and objects.
Frontotemporal dementia (FTD)
Dementia that begins typically in the mid to late fifties, characterized by deficits in executive functions such as planning, problem solving, and goal-directed behavior as well as recognition and comprehension of emotion in others.
Abnormal protein filaments present in the cell bodies of brain cells in patients with Alzheimer's disease.
Small, round areas composed of remnants of lost neurons and beta-amyloid, a waxy protein deposit; present in the brains of patients with Alzheimer's disease.
The tendency for less healthy individuals to die more quickly, which lead to biased samples in long-term follow-up studies.
The late-life shift in interest away from seeking new social interactions and toward cultivating those few social relationships that matter most, such as with family and close friends.
A possible confound in longitudinal studies whereby conditions at a particular point in time can have a specific effect on a variable that is being studied over time.
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