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Geriatric psychology is a subfield of psychology that specializes in the mental and physical health of individuals in the later stages of life. These specialized psychologists study a variety of psychological abilities that deplete as aging occurs such as memory, learning capabilities, and coordination. Geriatric psychologists work with elderly ...
Adult development encompasses the changes that occur in biological and psychological domains of human life from the end of adolescence until the end of one's life. Changes occur at the cellular level and are partially explained by biological theories of adult development and aging. [1]
There has yet to be a distinct link between the two because it is hard to determine exactly how each aspect of aging effects the memory and aging process. However, it is known that the brain shrinks with age due to the expansion of ventricles causing there to be little room in the head. Unfortunately, it is hard to provide a solid link between ...
In humans, ageing represents the accumulation of changes in a human being over time and can encompass physical, psychological, and social changes. [2] [3] Reaction time, for example, may slow with age, while memories and general knowledge typically increase.
Gerontology (/ ˌ dʒ ɛr ən ˈ t ɒ l ə dʒ i / JERR-ən-TOL-ə-jee) is the study of the social, cultural, psychological, cognitive, and biological aspects of aging.The word was coined by Ilya Ilyich Mechnikov in 1903, from the Greek γέρων (gérōn), meaning "old man", and -λογία (), meaning "study of".
The disengagement theory states that older adults withdraw from personal relationships and society as they age. The disengagement theory of ageing states that "aging is an inevitable, mutual withdrawal or disengagement, resulting in decreased interaction between the aging person and others in the social system he belongs to". [1]
Senescence (/ s ɪ ˈ n ɛ s ə n s /) or biological aging is the gradual deterioration of functional characteristics in living organisms. Whole organism senescence involves an increase in death rates or a decrease in fecundity with increasing age, at least in the later part of an organism's life cycle.
However, research suggests that the aging process is associated with several structural, chemical, and functional changes in the brain as well as a host of neurocognitive changes. Recent reports in model organisms suggest that as organisms age, there are distinct changes in the expression of genes at the single neuron level. [ 4 ]