AUTHOR=Raufelder Diana , Hoferichter Frances , Kulakow Stefan , Golde Sabrina , Gleich Tobias , Romund Lydia , Lorenz Robert C. , Pelz Patricia , Beck Anne 

TITLE=Adolescents’ Personality Development – A Question of Psychosocial Stress

JOURNAL=Frontiers in Psychology

VOLUME=Volume 12 - 2021

YEAR=2021

URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2021.785610

DOI=10.3389/fpsyg.2021.785610

ISSN=1664-1078

ABSTRACT=Following the relational-developmental systems approach, this three-wave study examines whether acute stress (T2) mediates the relationship between the development of personality traits from the beginning of 8th grade (T1, Mage = 15.63, SD = .59; 22 girls) to the end of 9th grade (T3). Using the Montréal Imaging Stress Task, which is a task that provokes acute social stress by negative social feedback, this study combined the fMRI, heart rate, and longitudinal survey data of 41 adolescents. Mediation analysis revealed that stress-induced left insula activation partially mediates the longitudinal stability of conscientiousness. These results highlight the impact of negative social feedback during stress on students’ personality development.