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Modeling age using cognitive, psychosocial and physiological variables: the Boston Normative Aging Study.
K J Jones1, M S Albert, F H Duffy
1Florence Heller Graduate School for Advanced Studies in Social Welfare, Brandeis University, Waltham, MA 02154.
Experimental Aging Research
|January 1, 1991
Summary
Chronological age
Area of Science:
- Neuroscience
- Psychology
- Gerontology
Background:
- Cognitive decline is a significant concern in aging populations.
- Understanding factors influencing cognitive function in older adults is crucial.
- Previous research has explored various determinants of cognitive aging.
Purpose of the Study:
- To investigate the complex relationship between chronological age and cognitive function.
- To identify intervening variables that mediate the effect of age on cognition.
- To explore associations between cognitive function and psychosocial factors.
Main Methods:
- A structural equation model was developed.
- Data from 100 healthy males aged 30-80 years were analyzed.
- Thirty-six variables across eight data domains were included, with age as exogenous and cognitive function as endogenous.
Main Results:
- The direct impact of age on cognitive function was significantly attenuated by social, lifestyle, physiological, and brain state variables.
- These factors act as crucial intervening variables in the aging-cognition pathway.
- Cognitive function showed associations with psychosocial measures, including psychiatric symptomatology and social support.
Conclusions:
- The aging process's effect on cognition is not solely direct but is modulated by a network of interconnected factors.
- Lifestyle, social engagement, physiological health, and brain state are key modulators of cognitive aging.
- Psychosocial well-being is linked to cognitive performance in older men, highlighting the importance of holistic health.
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