Table_1_Profiles of Impulsivity in Problematic Internet Users and Cigarette Smokers.DOC

Problematic Internet use (PIU) has been gradually recognized as a mental health issue among adolescents and young students. PIU shows many similarities with substance use disorders, but the shared and distinct mechanisms underlying them are unclear. The purpose of the current study was to explore the relationships between impulsive traits and PIU as well as cigarette smoking behaviors among young adults. Two independent samples of university students (N1 = 1281, N2 = 1034, respectively) over 3 years were assessed with multiple measurements of impulsivity, including the Barratt Impulsiveness Scale-11 (BIS-11), the UPPSP Impulsive Behaviors Scale (UPPSP), and the Delay-discounting Test (DDT). Logistic regression models revealed that across the two independent samples, BIS-11 Attentional Impulsiveness was the common trait positively predicting both PIU and cigarette smoking. While BIS-11 Motor Impulsiveness as well as UPPSP Lack of Perseverance, Lack of Premeditation, and Negative Urgency were the typical traits linked to PIU as positive predictors, UPPSP Sensation Seeking was the unique trait linked to cigarette smoking as a positive predictor. These results suggested that specific dimensions of impulsivity might be concurrently implicated in PIU and cigarette smoking among young adults, putatively representing important trait marks for addictive behaviors.

问题性网络使用（Problematic Internet Use, PIU）已逐渐被认定为青少年与青年学生群体中的心理健康问题。该现象与物质使用障碍存在诸多相似之处，但二者背后共通与独特的病理机制仍不明确。本研究旨在探讨青年群体中冲动特质与问题性网络使用、吸烟行为之间的关联。研究纳入两个独立的大学生样本（样本量分别为N₁=1281、N₂=1034），历时三年采用多项冲动性测评工具进行评估，包括巴瑞特冲动量表11版（Barratt Impulsiveness Scale-11, BIS-11）、UPPSP冲动行为量表（UPPSP Impulsive Behaviors Scale, UPPSP）以及延迟折扣测验（Delay-discounting Test, DDT）。逻辑回归模型分析结果显示，在两个独立样本中，BIS-11的注意冲动维度是同时正向预测问题性网络使用与吸烟行为的共有冲动特质。其中，BIS-11的运动冲动维度，以及UPPSP量表中的缺乏坚持性、缺乏预谋性与负性紧迫性，均为正向预测问题性网络使用的典型特质；而UPPSP感觉寻求则是唯一正向预测吸烟行为的独有特质。上述结果表明，特定维度的冲动性可能共同参与青年群体的问题性网络使用与吸烟行为，或可作为成瘾行为的重要特质标志物。