Lawton Ecological Model of Aging

The Lawton and Nahemow ecological model of aging, also called the competence-press model, is a theoretical framework that explains the behavior and emotional wellbeing of older people as a joint product of their personal capacities and the demands of their environment. Introduced in 1973, it holds that adaptive behavior arises when the level of environmental press matches a person's level of competence, and that mismatches in either direction produce maladaptive behavior and negative affect. Its most famous proposition, the environmental docility hypothesis, states that as individual competence declines the environment exerts proportionally greater influence on behavior, so settings matter most for the most vulnerable. The model introduced the ideas of adaptation level and zones of maximum comfort and maximum performance, giving environmental gerontology a way to think about optimal challenge. It reframed aging not as a property of the person alone but as a transaction between person and place, with direct implications for designing housing, care settings, and communities. The framework remains foundational for environmental and applied gerontology.