Judging the accuracy of a likelihood judgment: the case of smoking risk

A standard method for assessing whether people have appropriate internal representations of an event's likelihood is to check whether their subjective probability or frequency estimates for the event correspond with the assumed objective value for that event. When a person's estimate for the event exceeds its assumed objective probability or frequency, the person's expectancy for the event is concluded to be greater than warranted. This paper describes three lines of reasoning as to why conclusions of this sort can be problematic. Recently published findings as well as data from two new experiments are described to support this main thesis. The case of smoking risk is used to illustrate the more general problem, and issues that must be considered to avoid or contend with the problem are discussed. Copyright © 2002 John Wiley & Sons, Ltd.     

友伴关系与中学生的吸烟行为

友伴关系与中学生吸烟行为有非常直接的关系,然而,对此进行的研究却很少.社会网络结构分析技术的提出使研究者可以同时从友伴相互接纳和友伴地位两个角度对这一问题展开研究.从北京市1所普通中学和1所重点中学选取1091名初一至高三的学生为被试,运用NEGOPY软件包对中学生的友伴关系进行分析,结果发现,友伴相互接纳和友伴地位与中学生的吸烟行为都有显著的关系,为今后对中学生的吸烟行为进行预防和干预提供了非常重要的依据.     

尼古丁依赖对男性吸烟者感知戒烟行为控制的预测：社会支持与抱怨批评的作用

考察尼古丁依赖对男性吸烟者感知戒烟行为控制的预测及他人戒烟社会支持和抱怨批评的调节作用。对326名男性吸烟者进行问卷调查,结果显示：（1）尼古丁依赖显著负向预测感知行为控制;（2）社会支持和抱怨批评共同调节两者关系;在高社会支持且低抱怨批评、高抱怨批评且低社会支持的条件下,尼古丁依赖的预测作用不显著。结果说明,高社会支持在尼古丁依赖削弱感知行为控制过程中起缓冲作用,而高抱怨批评削弱社会支持的缓冲作用。     

An open trial of mindfulness‐based stress reduction for young adults with social anxiety disorder

The present study investigated mindfulness‐based stress reduction (MBSR) for young adults with a social anxiety disorder (SAD) in an open trial. Fifty‐three young adults in a higher education setting underwent a standard eight‐week MBSR program. Eight participants (15%) did not complete the program. Participants reported significant reductions in SAD symptoms and global psychological distress, as well as increases in mindfulness, self‐compassion, and self‐esteem. Using intention‐to‐treat (ITT) analyses, effect sizes ranged from large to moderate for SAD symptoms (Cohen's d = 0.80) and global psychological distress (d = 0.61). Completer analyses yielded large effect sizes for SAD symptoms (d = 0.96) and global psychological distress (d = 0.81). The largest effect sizes were found for self‐compassion (d = 1.49) and mindfulness (d = 1.35). Two thirds of the participants who were in the clinical range at pretreatment reported either clinically significant change (37%) or reliable improvement (31%) on SAD symptoms after completing the MBSR program, and almost two thirds reported either clinically significant change (37%) or reliable improvement (26%) on global psychological distress. MBSR may be a beneficial intervention for young adults in higher education with SAD, and there is a need for more research on mindfulness and acceptance‐based interventions for SAD.     

The effectiveness of narrative versus informational smoking education on smoking beliefs,attitudes and intentions of low-educated adolescents

Objective: This study tests the effectiveness of narrative versus informational smoking education on smoking beliefs, attitudes and intentions of low-educated adolescents.

Design: A field experiment with three waves of data collection was conducted. Participants (N = 256) were students who attend lower secondary education. At the first and third waves, they completed a questionnaire. At the second wave, 50.8% of the participants read a smoking education booklet in narrative form and 49.2% read a booklet in informational form. After reading, all participants also completed a questionnaire at wave 2.

Main outcome measures: Beliefs about negative consequences of smoking, attitudes towards smoking and intentions to smoke were measured.

Results: Repeated measures analyses with time as a within-subjects factor and condition as a between-subjects factor showed that beliefs about smoking were more negative at Wave 2 compared to Wave 1, irrespective of condition. However, attitudes towards smoking were more positive at Wave 3 compared to Wave 1 when participants had read the narrative version.

Conclusion: These results show that narrative smoking education is not more effective than informational smoking education for low-educated adolescents and can even have an unintended effect for this target group by making attitudes towards smoking more positive.     

Does social support predict smoking abstinence in dual-smoker couples? Evidence from a dyadic approach

Background and Objectives: Romantic partners have a significant influence on their health behaviors. Evidence for the effectiveness of social support for smoking abstinence, however, is mixed and the role of social support for smoking abstinence in dual-smoker couples is understudied.

Design: 77 dual-smoker couples were assessed 30 days after a joint quit attempt using a dyadic approach.

Methods: Received and provided support, self-reported and objectively measured smoking abstinence were assessed from both partners. Actor and partner effects of received and provided support on self-reported and objectively measured smoking abstinence and their difference for men and women were investigated with the Actor–Partner Interdependence Model using multilevel modeling.

Results: A significant actor effect emerged: Higher reports of received emotional support were related to an increased likelihood of objective smoking abstinence for men and women alike. For men only, partner effects of women’s received emotional and instrumental support emerged (p?<?.10): Higher reports of women’s support receipt were associated with an increased likelihood of men’s self-reported abstinence.

Conclusion: Received emotional support seems to play a key role in dual-smoker couple’s abstinence, whereas provided support does not seem to make a difference in successful quitting in dual-smoker couples.     

Randomized controlled trial of mindfulness-based stress reduction (MBSR) on posttraumatic growth of Chinese breast cancer survivors

Breast cancer (BC) patients in China suffered from a variety of psychology stress such as perceived stress and anxiety, posttraumatic growth (PTG) as a positive factor could promote their psychology health and quality of life. This study aimed to investigate the efficacy of mindfulness-based stress reduction (MBSR) on promoting PTG, decreasing perceived stress and anxiety of Chinese BC patients. A randomized controlled trial of 60 BC patients (Stages I–III) was conducted. They were randomly divided to the 8-week MBSR group or usual care (UC) group. PTG inventory, Perceived Stress Scale of Chinese version (CPSS) and State Trait Anxiety Inventory (STAI) evaluated the PTG level, perceived stress and anxiety at three times(before intervention-T1, after intervention-T2 and follow up at 3 months-T3). A repeated-measures analysis of variance model was used to compare each outcome measure of two groups at the three times. There was one patient discontinued the intervention and one lose to follow up in MBSR group, finally 58 BC patients completed the research. There was no difference between two groups before the intervention. The results showed significant improvements in MBSR group comparing with the UC group that PTG level was much higher after the 8-week intervention and the follow up (F = 34.73, p < .00). At the same time, CPSS (F = 14.41, p < .00) and STAI (F = 15.24, p < .00) scores were significant decreased at T2 and T3. The results showed that MBSR promoted the level of PTG and decreased perceived stress and anxiety state of Chinese BC patients, and the results persisted at three months after intervention. The research preliminary proved that MBSR was suitable to Chinese BC patients. MBSR should be recommending to BC survivors in China.     

对抗偏见:作为偏见消减策略的社会行为

对抗偏见是偏见对象或旁观者对偏见持有者表示不满的社会行为,能够降低偏见持有者的偏见水平,并有助于形成反偏见的社会规范,是一种有效的偏见消减策略。对抗偏见领域的研究可分为对抗偏见效果研究与对抗偏见行为研究。前者主要采用材料型和实验型研究范式,关注对抗偏见的作用机制、具体效果及对抗偏见效果的影响因素;后者主要采用回顾型、实时记录型和前瞻型研究范式,关注对抗偏见行为的发生机制和影响因素。将来这一领域需注重研究范式的综合使用及生态效度的提高,以促进对抗偏见效果研究与对抗偏见行为研究的有机结合;并在对抗偏见的神经机制和有效策略方面进一步深入探索。     

疼痛恐惧的神经机制及其消退

疼痛恐惧是疼痛基础和临床研究中的一个重要课题。个体对疼痛信息产生过度警觉,诱发不恰当的回避行为,扰乱机体的正常功能,加剧疼痛的现象即为疼痛恐惧。疼痛恐惧可影响个体的疼痛感知以及疼痛相关的注意和回避行为,且在慢性疼痛(如慢性肌骨骼疼痛)的发展、维持个体正常生理功能的丧失中起着重要作用。疼痛恐惧的形成与表达涉及杏仁核、海马、背侧前扣带回皮层、和前额叶皮层等脑区的参与。当前的疼痛恐惧消退的心理-行为干预方法可在疼痛恐惧加工的不同阶段(巩固、再巩固和消退)消退个体的疼痛恐惧。然而,由于恐惧记忆形成过程较为复杂并受多种因素影响,疼痛恐惧记忆消退方法效果较不稳定,其基础研究与临床应用之间仍存在较大的鸿沟。将来研究有必要考虑到疼痛恐惧形成环境的差异以及个体人格特质/心理状态的差异,逐步完善相关消退方法并将其引入临床镇痛,以期帮助患者弱化、擦除甚至改写困扰他们的疼痛恐惧,从而缓解甚至消除病患的疼痛。