2D:4D-ratios among individuals with amphetamine use disorder, antisocial personality disorder and with both amphetamine use disorder and antisocial personality disorder.

Autor: Hashemian SS; Centre de Recherche Charles-Le Moyne, Longueuil, Québec, Canada; Faculty of Medicine and Health Sciences, Université de Sherbrooke, Longueuil, Québec, Canada., Golshani S; Kermanshah University of Medical Sciences, Kermanshah, Iran., Firoozabadi K; Faculty of Medical Sciences, UCL Medical School, University College London, London, WC1E 6BT, UK., Firoozabadi A; Research Center for Psychiatry and Behavioral Sciences, Department of Psychiatry, Hafez Hospital, Shiraz University of Medical Sciences, Shiraz, Iran., Fichter C; Department of Psychology, Kalaidos Private University of Applied Sciences, Zurich, Switzerland., Dürsteler KM; Psychiatric Clinics, Division of Substance Use Disorders, University of Basel, 4002, Basel, Switzerland; Center for Addictive Disorders, Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital, University of Zurich, 8001, Zurich, Switzerland., Brühl AB; Center for Affective, Stress and Sleep Disorders (ZASS), Psychiatric University Hospital Basel, 4002, Basel, Switzerland., Khazaie H; Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran., Brand S; Kermanshah University of Medical Sciences, Kermanshah, Iran; Center for Affective, Stress and Sleep Disorders (ZASS), Psychiatric University Hospital Basel, 4002, Basel, Switzerland; Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran; Department of Sport, Exercise and Health, Division of Sport Science and Psychosocial Health, University of Basel, Basel, Switzerland; School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Center for Disaster Psychiatry and Disaster Psychology, Psychiatric University Hospital Basel, Basel, Switzerland; Center of Competence for Military and Disaster Medicine of the Swiss Armed Forces, Switzerland. Electronic address: serge.brand@upk.ch.
Jazyk: angličtina
Zdroj: Journal of psychiatric research [J Psychiatr Res] 2024 Feb; Vol. 170, pp. 81-89. Date of Electronic Publication: 2023 Dec 11.
DOI: 10.1016/j.jpsychires.2023.12.004
Abstrakt: Background: There is sufficient evidence that the index-finger-to-ring-finger-ratio (2D:4D-ratio) is associated with testosterone and estrogen exposure during the fetal stage. More specifically, a lower 2D:4D-ratio (that is; a shorter index finger, compared to a longer ring finger) was associated with a prenatally higher testosterone and lower estrogen exposure during the first trimester of the fetal stage. At a behavioral level, among adults, a lower 2D:4D-ratio was associated with a higher competitive performance among both female and male professional athletes, and with personality traits such as higher scores for mental toughness, dark triad traits, and aggressive behavior, and internet use disorder. Here, we tested, if 2D:4D-ratios differed among three clinical samples of individuals with amphetamine use disorder (AUD), antisocial personality disorder (ASPD), or both AUD and ASPD (AUD + ASPD), and when compared to healthy controls.
Method: The sample consisted of 44 individuals (mean age: 32.95 years; 22.7% females) diagnosed either with AUD (n = 25), ASPD (n = 10) or both AUD + ASPD (n = 9), and of 36 healthy controls (mean age: 23.28; 25% females). After a thorough clinical assessment, participants provided the scans of their right-hand palm to measure the lengths of their index finger and ring finger. Further, participants with AUD, ASPD and both AUD + ASPD completed a series of self-rating questionnaires on Dark Triad traits, narcissism sensitivity, and intolerance of uncertainty.
Results: Compared to healthy controls, participants with AUD, ASPD, or AUD + ASPD showed statistically significantly lower 2D:4D-ratios. Participants with AUD + ASPD showed statistically significantly lowest 2D:4D-ratios, compared to participants with AUD and compared to healthy controls. For the clinical sample, a lower 2D:4D-ratio was associated with higher Dark Triad traits. 2D:4D-ratios were unrelated to narcissism sensitivity or intolerance of uncertainty. Higher scores for Dark Triad traits were associated with higher scores for narcissism sensitivity and intolerance of uncertainty.
Conclusions: Compared to healthy controls, individuals with amphetamine use disorder and concomitant antisocial personality disorder (AUD + ASPD) appeared to have been exposed to particularly high prenatal testosterone and particularly low estrogen concentrations, which, at a behavioral level, might have led to a fast life history for immediate resource acquisition.
Competing Interests: Declaration of competing interest All authors declare no conflicts of interest.
(Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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