The researchers, lead by Dr. Tomiko Yoneda of the University of Victoria, gathered data from almost 2,000 people .
Before beginning the study, none of them had been diagnosed with dementia.
The Big Five Personality Traits were employed as a model by the team lead by Yoneda.
Neuroticism, Extroversion, Openness, Agreeableness, and Conscientiousness are the five personality traits.