Effects of internet-based voucher reinforcement and a transdermal nicotine patch on cigarette smoking

Nicotine replacement products are commonly used to promote smoking cessation, but alternative and complementary methods may increase cessation rates. The current experiment compared the short-term effects of a transdermal nicotine patch to voucher-based reinforcement of smoking abstinence on cigarette smoking. Fourteen heavy smokers (7 men and 7 women) completed the four 5-day phases of the study: baseline, patch treatment, voucher treatment, and return to baseline. The order of the two treatment phases was counterbalanced across participants. In the patch treatment condition, participants wore a 14-mg transdermal nicotine patch every day. In the voucher treatment condition, participants received vouchers contingent on abstinence from smoking, defined as producing carbon monoxide (CO) readings of < or =4 parts per million. Participants e-mailed two video clips per day showing them breathing into a CO monitor and the resulting CO reading to clinic staff. In the voucher treatment, 24% of samples were negative, and 5% of samples were negative in the patch treatment. Results suggest that contingent vouchers were more effective than transdermal nicotine patches in promoting abstinence.     

Internet addiction among Norwegian adults: a stratified probability sample study

Most Norwegians are Internet users. We conducted a stratified probability sample study (Norway, 2007, age-group 16–74 years, N = 3,399, response rate 35.3%, 87.1% Internet users) to assess the prevalence of Internet addiction and at-risk Internet use by the Young Diagnostic Questionnaire (YDQ). The prevalence of Internet addiction (YDQ score 5–8) was 1.0% and an additional 5.2% were at-risk Internet users (YDQ score 3–4). Internet addiction and at-risk Internet use was strongly dependent on gender and age with highest prevalences among young males (16–29 years 4.1% and 19.0%, 30–39 years 3.3% and 10.7%). Logistic regression showed that male gender, young age, university level education, and an unsatisfactory financial situation were factors positively associated with "problematic Internet use" (at-risk and addicted use combined). Time spent on the Internet and prevalence of self-reported sleeping disorders, depression, and other psychological impairments increased linearly with YDQ score. Problematic Internet use clearly affects the lives of many people.     

工作狂的研究述评

工作狂是指那些在强烈的内部动机的驱动下,长期投入大量时间和精力到工作上的个体,其形成和发展可以用成瘾模型、强化理论、特质理论和家庭系统理论来解释。工作狂的测量工具主要有工作成瘾风险测验、工作狂问卷和工作狂行为量表。该领域的研究者对于人格变量、人口统计学变量和组织因素等工作狂前因变量及健康、人际关系等工作狂的结果变量的探讨比较深入,但在概念界定、理论整合、测量工具、取样和变量探索等方面还有待进一步研究     

中枢胆碱能系统对吗啡成瘾的影响研究现状

介绍了中枢胆碱能系统对吗啡成瘾的影响及其机制。研究结果表明,吗啡成瘾过程中伏隔核等脑区细胞间乙酰胆碱水平发生了改变;去除伏隔核等脑区胆碱能细胞强化了吗啡成瘾行为;胆碱能激动剂和抑制剂都能干预吗啡成瘾、但机制可能不同——前者可能通过与多巴胺能交互作用来实现,后者可能通过干扰记忆或者加速吗啡代谢而发挥作用;胆碱能受体对吗啡成瘾也具有重要影响     

病理性使用互联网的界定与测量

病理性使用互联网（Pathological Internet Use,PIU）是人在互联网使用过程中出现的一种新型心理疾病。很多研究者认为互联网使用过度或不当是病理性使用互联网的主要原因。该文对病理性使用互联网已有研究的概念的界定与测量问题进行了分析与整合,讨论了在中国社会文化背景下如何界定与测量病理性使用互联网。     

Diminishing marginal value as delay discounting.

The fundamental law underlying economic demand and exchange is the tendency for value of marginal units to diminish with increasing amounts of a commodity. The present paper demonstrates that this law follows from three still-more-basic psychological assumptions: (a) limited consumption rate, (b) delay discounting, and (c) choice of highest valued alternative. Cases of diminishing marginal value apparently due to pure intensity of reward may plausibly be attributed to the above three factors. The further assumption that maximum consumption rate may vary within and across individuals implies that some substances may be unusually addictive and that some individual animals may be unusually susceptible to addiction.     

Facilitation of human tobacco self-administration by ethanol: a behavioral analysis.

The effect of ethanol on the cigarette smoking of alcoholic subjects was studied in a residential laboratory. During daily 6-hr sessions, cigarettes were obtained either by request to the ward staff or by operation of a lever (fixed-ratio 5 or 10). In a mixed sequence across days, sessions involved ingestion of either vehicle (orange juice or vehicle plus ethanol (133.7 g). During ethanol sessions, the rate of cigarette smoking increased from 26% to 117% of vehicle levels. A series of control studies eliminated a number of potential behavorial mechanisms for the observed effect and indicated that the ethanol-induced increase in cigarette smoking occurred under a variety of experimental conditions: (1) when smoking could not occur concurrently with ethanol or vehicle consumption; (2) when subjects were not allowed to socialize; (3) when ingestion of ethanol or vehicle was scheduled for a number of consecutive days; (4) when various doses of ethanol were administered under blind conditions. In control experiments, weighing unsmoked tobacco and counting the number of puffs per cigarette indicated the effect was not due to smoking less of each cigarette. The effect was not limited to the experimental sessions alone, since total daily smoking was higher on ethanol days than vehicle days.     

Peer identification and empirical validation of problematic interpersonal situations of male drug addicts

The present research was concerned with identifying and validating the problematic interpersonal situations of male veteran drug addicts. In Study I, 20 addicts self-monitored the situations with which they had difficulty coping and their associated characteristics throughout a 2-week period. Fifty situations were obtained and then rewritten into specific interpersonal scenarios. In Study II, a second group of 36 addicts and a comparison group of 20 disabled veterans rated the commonality and difficulty of each scenario along seven-point scales. Univariate ANOVAs found that five scenarios received ratings greater than four on both scales and were associated with significantly higher ratings by the addicts. These preliminary scenarios may serve as role-play situations during social-skills assessment and training and may provide further information regarding the interpersonal determinants of relapse occasioned in the natural environment. The need for controlled comparison studies using behavioral measures and an overall improvement in the methodological rigor of research in the area is discussed.The authors acknowledge the editorial comments of Ted D. Nirenberg, Ph.D., on an earlier draft of this paper. Portions of these data were presented at the Fifth World Congress on Behavior Therapy, Washington, DC.     

大学生智能手机成瘾与抑制控制能力的关系:手机位置和认知负荷的调节作用

本研究以66名大学生为被试,采用Flanker效应和工作记忆的双任务设计来探讨手机位置、认知负荷在智能手机成瘾与抑制控制能力之间的调节作用。结果发现：（1）在低认知负荷下,无论是否智能手机成瘾,手机存在视线之外比手机在视线之内时抑制控制能力更差;（2）在高认知负荷下,智能手机成瘾与手机位置交互作用显著：当手机在视线之内时,智能手机成瘾者的抑制控制能力显著差于非成瘾者;而当手机在视线之外时,两者没有显著差异。结果表明,智能手机成瘾大学生的抑制控制能力不仅会受到手机位置的影响,还会受到任务本身所带来的认知负荷的调节。     

父母忽视与青少年网络游戏成瘾的关系:希望的中介作用和性别的调节作用

为探究父母忽视与青少年网络游戏成瘾的关系及其中心理机制,本研究以全国七个省的八所中学共805名初二学生为被试,采用问卷法考察了父母忽视与青少年网络游戏成瘾的关系及希望在其中的中介作用,并检验了该过程是否受到性别的调节。在控制了每周上网时间和网龄后,结果发现：（1）父母忽视对网络游戏成瘾具有正向预测作用;（2）希望在父母忽视和网络游戏成瘾间起到完全中介作用;（3）性别调节了中介模型的前半段路径,具体表现为相对于女生,父母忽视对男生希望的负向预测作用更显著。结果表明父母忽视会明显降低初二学生的希望水平,进而增加其网络游戏成瘾风险,并且在男生群体中的作用更加显著。