Personality changes not a red flag for dementia

The study findings provide evidence against the 'reverse causality' hypothesis

 US researchers have found no evidence to support the idea that dementia can be identified by changes in personality before the onset of cognitive impairment.


They followed a cohort of healthy adults for 12-36 years, but found that the trajectory of personality change among those who developed dementia was not significantly different to that of the other study participants.

The Baltimore Longitudinal Study of Ageing involved 2046 men and women with a mean age of 62 at baseline who self-reported personality traits including neuroticism, extraversion, openness, agreeableness and conscientiousness.