Determinant factors contributing to variations in memory performance in centenarians.

The role of environmental markers in memory performance among centenarians was examined in a study comparing non-cognitive factors to various aspects of memory performance. The centenarian group participating in the study consisted of 100 individuals (82 females and 18 males). Selected as non-cognitive factors were Quality of Life, Life-Habits, Health, Personality, and Autonomy. These factors were later compared to memory performance in short-term memory, semantic memory, and episodic memory. Using a structural equation model, results showed that performance in short-term memory was best predicted by life-habits and personality, while performance in semantic and episodic memory were best predicted by autonomy and life-habits. Implementation of the result from a life-span perspective includes a closer monitoring of environmental markers in the future. In effect, this could preserve memory function and optimum health through old age, thus making interventions easier to realize.