Self-reported attentional and motor impulsivity are related to age at first methamphetamine use

Abstract

Introduction Methamphetamine (MA) users report higher levels of impulsivity relative to healthy controls, which may either result from, or precede, their substance use. Further, there is evidence that female MA users may be more impulsive than male MA users prior to MA use. Thus, the goal of the current study was to determine whether different subtraits of self-reported impulsivity are significantly related to age at first MA use, controlling for total years of MA use. Methods A community sample of MA users was recruited for this study (N = 157; 113 males, 44 females). The Barratt Impulsiveness Scale (BIS-11) was used to assess self-reported impulsivity on three subscales (Attentional, Motor, Non-planning). Age at first MA use served as the dependent variable in a series of multiple regression models with BIS-11 subscales, sex, and their interaction as independent variables, controlling for total years of MA use. Results Attentional and Motor impulsivity were significantly related to age at first MA use when controlling for total years of MA use (Attentional: p = 0.008; Motor: p = 0.003). Conclusions Individuals who reported higher Attentional and Motor impulsivity started using MA at an earlier age, which could suggest that impulsivity levels may be an important marker of vulnerability towards MA use. These findings indicate that prevention efforts may be targeted towards individuals who report high levels of Attentional and Motor impulsivity, as they may be at greatest risk for earlier initiation of MA use.

Boredom Proneness and Aggression Among People With Substance Use Disorder: The Mediating Role of Trait Anger and Impulsivity

“…Impulsivity can be conceptualized as rapid decision making with little or no forethought, a lack of planning, and no consideration of the consequences (Petry, 2001). Reportedly, impulsivity increases susceptibility to develop stimulant use disorders (Cservenka & Ray, 2017), and stimulant use increases the likelihood of impulsivity in return (Uhlmann et al, 2016). For example, adults who are currently using methamphetamine present with increased impulsivity (Jones, Dean, Price, & London, 2016).…”

Trait impulsiveness is related to smaller post‐commissural putamen volumes in males but not females

“…In turn, low VS D 2/3 R expression in rodents has been associated with more pronounced drug use and drug liking (Dalley et al ., ; Michaelides et al ., ). In humans, several lines of evidence point to increased impulsivity as an endophenotype, or vulnerability factor, for drug use and addiction (de Wit, ; Cservenka & Ray, ; Trifilieff et al ., ).…”

Examination of impulsiveness and aggression in substance abuse (tur)

“…Dikkatsizlik, sabırsızlık, yenilik arama, risk alma, heyecan arama, zarar görme ihtimalini olduğundan daha düşük hesaplama ve dışa dönüklük gibi özellikler ile kendini gösterir (3,4). Dürtüsellik, içsel ya da dışsal bir uyarana, kendisi ya da başkaları için sonucun olumlu ya da olumsuz olabileceğini düşünmeden, hızlıca ve plan yapmadan yanıt verme eğilimidir (4,5,6,7). Vuchinich ve Tucker (1988) psikoaktif madde kullanımının dürtüselliği yüksek olan bireylerde beklenen bir davranış olduğunu ifade eder (8).…”

“…Bazı psikiyatrik bozuklukların çekirdek tezahürlerinden biri olan dürtüsellik (7) üç boyutlu bir yapıda ele alınabilmektedir. Dikkatle ilişkili dürtüsellik, "odaklanma eksikliği veya konsantre olamama" olarak tanımlanırken, motor dürtüsellik, "düşünmeden davranma" ve tasarlanmamış dürtüsellik "geleceğe ilişkin tahmin eksikliği veya öngörü yetersizliği" olarak kavramlaştırılmıştır (6,18). Madde bağımlılığı aşamalı bir süreçtir ve her aşamada dürtüselliğin farklı şekillerde ele alınması gerekmektedir.…”