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This phenomenon is known as the "paradox of ageing". This may be a result of social comparison; [146] for instance, the older people get, the more they may consider themselves in better health than their same-aged peers. [147] Elderly people often associate their functional and physical decline with the normal ageing process. [148] [149]
Neurogenesis occurs very little in adults; it only occurs in the hypothalamus and striatum to a small extent in a process called adult neurogenesis.Environmental enrichment, physical activity and stress (which can stimulate or hinder this process) are key environmental and physiological factors affecting adult neurogenesis. [2]
Elderly subjects (60±79 years of age) have slower SRTs and longer duration saccades than any other age groups. [ 16 ] Old adults exhibit reductions in manual dexterity which is observed through changes in fingertip force when gripping and/or lifting.
However some data suggest that mild changes in orientation may be a normal part of aging. [52] [53] For example, Sweet and colleagues concluded that "older persons with normal, healthy memory may have mild orientation difficulties. In contrast, younger people with normal memory have virtually no orientation problems" [53] (p. 505). So although ...
The third reason is the "memory self-efficacy," which indicates that older people do not have confidence in their own memory performances, leading to poor consequences. [17] It is known that patients with Alzheimer's disease and patients with semantic dementia both exhibit difficulty in tasks that involve picture naming and category fluency.
In just 60 years that total has grown to over 35 million people. This rise in population and life expectancy had shined a light on the manifestation of development throughout adulthood. [12] Changes in adulthood have been described by several theories and metatheories, which serve as a framework for adult development research.
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Elderly people often associate their functional and physical decline with the normal ageing process. [ 28 ] [ 29 ] The elderly may actually enhance their perception of their own health through social comparison ; [ 30 ] for instance, the older people get, the more they may consider themselves in better health than their same-aged peers. [ 31 ]