title: Interpersonal competence in young adulthood and right laterality in white matter.
abstract: The right hemisphere of the human brain is known to be involved in processes underlying emotion and social cognition. Clinical neuropsychology investigations and brain lesion studies have linked a number of personality and social disorders to abnormal white matter (WM) integrity in the right hemisphere. Here, we tested the hypothesis that interpersonal competencies are associated with integrity of WM tracts in the right hemisphere of healthy young adults. Thirty-one participants underwent diffusion tensor imaging scanning. Fractional anisotropy was used to quantify water diffusion. After the scanning session, participants completed the Adolescent Interpersonal Competence Questionnaire. Fractional anisotropy was subsequently correlated with Adolescent Interpersonal Competence Questionnaire scores using tract-based spatial statistics. Higher interpersonal competencies are related to higher WM integrity in several major tracts of the right hemisphere, in specific the uncinate fasciculus, the cingulum, the forceps minor, the infero-fronto occipital fasciculus, the inferior longitudinal fasciculus, and the superior longitudinal fasciculus. These results provide the first direct analysis of the neuroanatomical basis of interpersonal competencies and young adult self-reported skills in social contexts.
authors.affiliation: University of Trento.
authors.forename: Nicola
authors.initials: N
authors.lastname: De Pisapia
authors.forename: Mauro
authors.initials: M
authors.lastname: Serra
authors.forename: Paola
authors.initials: P
authors.lastname: Rigo
authors.forename: Justin
authors.initials: J
authors.lastname: Jager
authors.forename: Nico
authors.initials: N
authors.lastname: Papinutto
authors.forename: Gianluca
authors.initials: G
authors.lastname: Esposito
authors.forename: Paola
authors.initials: P
authors.lastname: Venuti
authors.forename: Marc H
authors.initials: MH
authors.lastname: Bornstein
mesh_terms: D000328:Adult; D016880:Anisotropy; D001921:Brain / Q000033:anatomy & histology*; D001931:Brain Mapping; D056324:Diffusion Tensor Imaging; D004292:Dominance, Cerebral; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D009413:Nerve Fibers, Myelinated; D011581:Psychological Tests; D012919:Social Behavior; D055815:Young Adult