The psychological and genetic factors of the addictive behaviors (PGA) study

Eszter Kotyuk, Judit Farkas, Anna Magi, Andrea Eisinger, Orsolya Király, Andrea Vereczkei, Csaba Barta, Mark D. Griffiths, Gyöngyi Kökönyei, Anna Székely, Mária Sasvári-Székely, Zsolt Demetrovics

Research output: Contribution to journalArticle


Objectives: Most of the addiction studies focus on very specific aspects of addictions, often with contradictory results, and integrated studies are quite rare. Experimental studies comparing underlying mechanisms of addictions and analyzing data from an integrative psychological and genetic perspective are almost nonexistent. The aim of the present paper is to describe the research protocol of the Psychological and Genetic Factors of Addictive Behaviors (PGA) study, which applies an integrative approach to understanding the acquisition, development, and maintenance of addictive behaviors. Methods: A wide-spectrum national study was carried out. Data were collected from 3,003 adolescents. Addictions to both psychoactive substances and behaviors were thoroughly assessed via psychometrically robust scales, which also included assessment related to a wide range of related psychological dimensions. Additionally, a DNA sample was also collected from participants. Results: The paper presents the detailed methodology of the PGA study. Data collection procedures, instrumentation, and the analytical approach used to attain the research objectives are described. Conclusions: Future plans, along with potential contributions of the PGA study, are also discussed. It is envisaged that the study will provide a unique opportunity to test possible mechanisms and causal pathways mediating the associations of genetic factors, psychological characteristics, and addictions.

Original languageEnglish
Article numbere1748
JournalInternational Journal of Methods in Psychiatric Research
Issue number1
Publication statusPublished - Mar 2019



  • addiction genetics
  • behavioral addictions
  • integrative approach
  • psychological addiction factors
  • substance use disorders

ASJC Scopus subject areas

  • Psychiatry and Mental health

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