Related Experiment Video
Updated: Jul 18, 2025

Author Spotlight: A Novel Setup to Conduct Naturalistic Laboratory Experiments with Real Human Actors in Scenarios
Published on: August 4, 2023
Association between Reaction Times in the Joint Simon Task and Personality Traits
Shun Irie1, Atsumichi Tachibana2, Akiko Matsuo3
1Division for Smart Healthcare Research, Dokkyo Medical University, Tochigi 321-0293, Japan.
This study explored the link between joint Simon effects (JSEs) and personality traits. We found that neuroticism correlated with JSEs, while agreeableness was linked to faster reaction times in joint tasks.
Area of Science:
- Cognitive Psychology
- Social Psychology
- Neuroscience
Background:
- Joint go and no-go effects (JSEs) in joint Simon tasks are influenced by social presence.
- JSEs are potential clinical markers for communicative function, but their link to personality is unclear.
Purpose of the Study:
- To investigate the association between joint Simon effects (JSEs) and personality traits.
- To explore the relationship between personality and reaction times in joint Simon tasks.
Main Methods:
- Thirty Japanese participants completed the ten-item personality inventory.
- Reaction times were measured in single and joint Simon tasks under congruent and incongruent conditions.
- Spearman's correlation analysis was used to assess associations between reaction times and personality traits.
Main Results:
- A significant positive correlation was found between JSEs and neuroticism.
- Shorter reaction times in the joint condition showed a significant correlation with agreeableness.
Conclusions:
- Personality traits, specifically neuroticism and agreeableness, are associated with joint Simon effects (JSEs).
- These findings suggest potential psychological markers for the joint Simon task and offer hypotheses for its neurobiological mechanisms.
Related Concept Videos
Self-Report Tests of Personality
Personality Theory by Eysenck and Eysenck
In the extroversion/introversion dimension, highly extroverted people are sociable, outgoing, and easily connect with others. In contrast,...
Social Cognitive Perspective on Personality
The Behavioral Perspective on Personality
Cattell's 16 Personality Factors
In contrast, source traits are the...
Five-Factor Theory of Personality
Openness reflects creativity, curiosity, and openness to new experiences. Individuals scoring high in openness are imaginative, have a wide range of interests, and are independent...

