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The activity theory and the disengagement theory were the two major theories that outlined successful aging in the early 1960s. [4] The theory was developed by Robert J. Havighurst in 1961. [ 1 ] In 1964, Bernice Neugarten asserted that satisfaction in old age depended on active maintenance of personal relationships and endeavors.
He is credited with developing theories about lifespan and wisdom, the selective optimization with compensation theory, and theories about successful aging and developing. [2] He received his doctorate from the University of Saarbrücken (Saarland, Germany) in 1967. After, Baltes spent 12 years at several American institutions as a professor of ...
In the following year, Schulz and Heckhausen published the article A life span model of successful aging which discusses the development of the model in relation to conceptions of successful aging. The article proposes a key role of primary control for adaptive aging, and lays out processes of optimization which guide the selection of goals and ...
Aging by design theory; Aging theories based on evolvability; Aging theories based on group selection; Antagonistic pleiotropy hypothesis; C. Cross-linking theory of ...
Kahn's work on organizational theory, including the book "The Social Psychology of Organizations" (1966) that he co-authored with Daniel Katz, has been described as "a major influence on the field of organizational research, applying a framework of open system theory—the assumption that an organization continuously interacts with its environment—to research on leadership, role behavior ...
Genetic theories of aging propose that aging is programmed within each individual's genes. According to this theory, genes dictate cellular longevity. Programmed cell death, or apoptosis, is determined by a "biological clock" via genetic information in the nucleus of the cell. Genes responsible for apoptosis provide an explanation for cell ...
The reliability theory of aging is an attempt to apply the principles of reliability theory to create a mathematical model of senescence. [1] The theory was published in Russian by Leonid A. Gavrilov and Natalia S. Gavrilova as Biologiia prodolzhitelʹnosti zhizni in 1986, and in English translation as The Biology of Life Span: A Quantitative Approach in 1991.
Research centres and networks: The European Network in Aging Studies (ENAS) was founded in 2010 and its mission is to facilitate international collaboration in the study of cultural ageing. Women, Ageing and Media (WAM) was founded in 2010 and its members study the relationship between older women and popular media (e.g. popular music, fashion).