Intergenerational transmission of psychopathology : An examination of symptom severity and directionality

The present study examined the intergenerational transmission of internalizing and externalizing symptom severity, which indexes comorbidity, and symptom directionality, which indicates differentiation toward externalizing versus internalizing problems. Data are from 854 male and female, same-sex adult twin pairs born between 1926 and 1971 (32-60 years old, M = 44.9 years, SD = 4.9 years) from the Twin and Offspring Study in Sweden and their adolescent offspring (11-22 years old, M = 15.7 years, SD = 2.4 years, 52% female). Children-of-twins models revealed additive (9%) and dominant (45%) genetic and nonshared environmental (47%) influences on twins' symptom severity, and additive genetic (39%) and nonshared environmental (61%) influences on twins' symptom directionality. Both comorbid problems and preponderance of symptoms of a particular - internalizing versus externalizing - spectrum were correlated across parent and child generations, although associations were modest especially for directionality (i.e., transmission of specific symptom type). By interpreting findings alongside a recent study of adolescent twins, we demonstrate that the intergenerational transmission of symptom severity and symptom directionality are both unlikely to be attributable to genetic transmission, are both likely to be influenced by direct phenotypic transmission and/or nonpassive rGE, and the intergenerational transmission of symptom severity is also likely to be influenced by passive rGE.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - year:2022

Enthalten in:

Development and psychopathology - (2022) vom: 13. Sept., Seite 1-14

Sprache:

Englisch

Beteiligte Personen:

Marceau, Kristine [VerfasserIn]
Yu, Li [VerfasserIn]
Knopik, Valerie S [VerfasserIn]
Ganiban, Jody M [VerfasserIn]
Neiderhiser, Jenae M [VerfasserIn]

Links:

Volltext

Themen:

Children-of-twins
Comorbidity
Directionality
Externalizing
Intergenerational transmission
Internalizing
Journal Article
Severity

Anmerkungen:

Date Revised 14.03.2024

published: Print-Electronic

Citation Status Publisher

doi:

10.1017/S0954579422000852

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM346147190