This article investigates whether rapid variation within a person in extraversion is associated with positive affect variation in that person. In Study 1, participants reported their extraversion and positive affect every 3 hr for 2 weeks. Each participant was happier when acting extraverted than when acting introverted. Study 2's diary methodology replicated the relationship for weekly variati...

Background & Aims: The current study aimed to investigate the role of catastrophizing as mediator variable in the relationship of neuroticism and extraversion with fear of movement and pain intensity in patients with musculoskeletal pain. Methods: This study was conducted on 200 subjects who were selected through purposive sampling from among the clients of Shohada, Emam Hossein, and Sina Hospi...

The personality dimensions of neuroticism and extraversion are strongly associated with emotional experience and affective disorders. Previous studies reported functional magnetic resonance imaging (fMRI) activity correlates of these traits, but no study has used brain-based measures to predict them. Here, using a fully cross-validated approach, we predict novel individuals' neuroticism and ext...

This paper attempts to reconcile two perspectives on the impact of positive trait change. The first perspective views positive trait change as salubrious because it reflects the process of self-enhancement, whereas the second perspective views positive change as costly because it disrupts the self-verification process. We propose that benefits and costs accrue at discrete rates, such that moder...