Sources of Openness/Intellect: Cognitive and Neuropsychological Correlates of the Fifth Factor of Personality
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- 4 May 2005
- journal article
- research article
- Published by Wiley in Journal of Personality
- Vol. 73 (4) , 825-858
- https://doi.org/10.1111/j.1467-6494.2005.00330.x
Abstract
We characterize Openness/Intellect as motivated cognitive flexibility, or cognitive exploration, and develop a neuropsychological model relating it to dopaminergic function and to the functions of the prefrontal cortex (PFC). Evidence is reviewed for sources of Openness/Intellect shared with Extraversion and sources unique to Openness/Intellect. The hypothesis that the cognitive functions of the dorsolateral PFC are among the latter was tested using standard measures of cognitive ability and a battery of tasks associated with dorsolateral PFC function (N=175). Dorsolateral PFC function, as well as both fluid and crystallized cognitive ability, was positively related to Openness/Intellect but no other personality trait. Additionally, facet level analysis supported the characterization of Openness/Intellect as a primarily cognitive trait.Keywords
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