聊城市汉族正常人血清骨钙素参考值的研究

建立聊城市汉族正常人血清骨钙素水平的参考值。利用化学发光免疫分析法对聊城市162例汉族体检健康者血清骨钙素（BGP）水平进行检测,检测范围0．2ng／ml-100ng／ml。结果聊城市汉族正常人血清骨钙素水平的参考值为5．21±0．73ng／ml。首次报道了聊城市汉族正常人血清骨钙素参考值,为骨病骨代谢研究提供一项新的...     

Rejection sensitivity prospectively predicts increased rumination

Converging research findings indicate that rumination is correlated with a specific maladaptive interpersonal style encapsulating submissive (overly-accommodating, non-assertive and self-sacrificing) behaviours, and an attachment orientation characterised by rejection sensitivity. This study examined the prospective longitudinal relationship between rumination, the submissive interpersonal style, and rejection sensitivity by comparing two alternative hypotheses: (a) the submissive interpersonal style and rejection sensitivity prospectively predict increased rumination; (b) rumination prospectively predicts the submissive interpersonal style and rejection sensitivity. Currently depressed (n = 22), previously depressed (n = 42) and never depressed (n = 28) individuals completed self-report measures assessing depressive rumination and key psychosocial measures of interpersonal style and behaviours, at baseline and again six months later. Baseline rejection sensitivity prospectively predicted increased rumination six months later, after statistically controlling for baseline rumination, gender and depression. Baseline rumination did not predict the submissive interpersonal style or rejection sensitivity. The results provide a first step towards delineating a potential casual relationship between rejection sensitivity and rumination, and suggest the potential value of clinical assessment and intervention for both rejection sensitivity and rumination in individuals who present with either difficulty.     

Preference for gamma-hydroxybutyrate (GHB) in current users

Gamma-hydroxybutyrate (GHB) is a drug with significant abuse potential. The present study aimed to assess the relative value of escalating doses of GHB to current GHB users via the Multiple Choice Procedure (MCP), and to validate that the dose rated highest with the MCP would be self-administered at a greater rate than placebo. Participants were 5 current GHB users who were not currently trying to stop using GHB. To examine the value of escalating doses of GHB, the following doses of GHB were used: 0 (placebo), 12.5, 25, 37.5, and 50 mg/kg. Participants typically assigned higher doses of GHB had higher crossover points on the MCP. During choice sessions, participants made repeated choices between administering GHB, placebo or nothing. All participants selected GHB exclusively (5 out of 5 instances) except for one participant who selected GHB on 4 out of 5 instances, thus 96% (i.e., 24/25) of choices were for active GHB. Based on these data, GHB appears likely to function as a dose-dependent reinforcer for humans based on our sample.     

Mindfulness-based cognitive therapy to treat multiple chemical sensitivities: a randomized pilot trial

Skovbjerg, S., Hauge, C. R., Rasmussen, A., Winkel, P. & Elberling, J. (2012). Mindfulness‐based cognitive therapy to treat multiple chemical sensitivities: A randomized pilot trial. Scandinavian Journal of Psychology 53, 233–238. Multiple chemical sensitivities (MCS) is a medically unexplained and socially disabling disorder characterized by negative health effects attributed to exposure to common airborne chemicals. Currently, there is no evidence‐based treatment. The objectives of the study were to assess the feasibility of an 8‐week mindfulness‐based cognitive therapy program (MBCT) for adults with MCS and to evaluate possible effects on psychological distress and illness perception. The study design was a randomized clinical trial. The MBCT programme comprised 8 weekly sessions of 2½ hours. Forty‐two adults were screened for eligibility and 37 were included. Mean age of the participants was 51.6 years, 35 (94.6%) were female and 21 (56.8%) were unemployed. Measures of psychological distress and illness perceptions were assessed at baseline, 4 weeks, 8 weeks and at 3 months follow‐up. No significant differences in effect measures were found between the groups. However, those who completed the MBCT program generally reported benefiting in terms of improved coping strategies and sleep quality. The positive verbal feedback from the participants in the MBCT group suggests that a larger randomized clinical trial on the effect of MBCT for MCS could be considered.     

A methodological note on the interactive and main effects of dualistic personality dimensions: An example using the 2 × 2 model of perfectionism

The goal of this methodological note was to outline the importance of considering the interactive and main effects of dualistic personality dimensions by presenting an example grounded in the 2 × 2 model of perfectionism (Gaudreau & Thompson, 2010). A study was conducted with a sample of 98 university students to examine the associations between four subtypes of perfectionism and academic performance. Results of moderated regression analyses revealed a non-significant interaction between self-oriented (SOP) and socially prescribed perfectionism (SPP). Nonetheless, the four hypotheses of the 2 × 2 model of perfectionism were supported in the context of a compensatory model showing a significant and positive main effect of SOP along with a negative and significant main effect of SPP. This methodological note contributes to the literature by offering clear guidelines on how the two main effects of SOP and SPP (and their resulting predicted values) can be used to test the four hypotheses of the 2 × 2 model despite the absence of a significant interaction between SOP and SPP.     

Maternal Sensitivity: Evidence of Stability across Time,Contexts, and Measurement Instruments

Although maternal sensitivity is widely understood as having a direct impact on the quality of the mother–child relationship, empirical evidence supporting this has been inconsistent, possibly because of varied definitions of the construct and limitations of measurements. The Maternal Behavior Q‐Set (MBQS) appears to be a promising measure of sensitivity, showing associations with attachment security (r = .60) higher than those reported (r = .24) in a highly‐regarded meta‐analysis of other sensitivity measures. The present study aimed to further establish the validity and utility of the MBQS by exploring its consistency with a contingency‐based measure of sensitivity, while also seeking evidence of stability across contexts and times. Seventy‐two mothers and their 10‐month‐olds participated in a procedure that included two episodes of Floor Play and Reunions following maternal differential treatment. Mothers were scored on contingent responsivity and warmth. At 12 months, the dyads underwent the Strange Situation Procedure where sensitivity was assessed using a 72‐item version of the MBQS. The findings revealed the stability of maternal sensitivity across times, contexts, and measures. However, linkages applied only to 10‐month scores from reunion, not play, episodes, supporting Pederson and Moran's (1995) assertion that high‐demand circumstances reveal more meaningful differences in maternal sensitivity. Copyright © 2012 John Wiley & Sons, Ltd.     

敬畏对跨期选择的影响：时间洞察力和时距敏感度的作用

本研究考察了情绪(敬畏、愉悦和中性)对跨期选择的影响机制,以及时距敏感度和时间洞察力在其中的作用。结果显示：(1)相比中性,敬畏情绪下个体的折扣率更大;(2)相比中性,敬畏情绪下折扣率降幅更大;(3)对于未来取向者,敬畏情绪下折扣率比中性条件下更大;(4)对于现在取向者,敬畏情绪下折扣率降幅比中性条件下更大。结果表明,敬畏情绪通过未来时距的敏感度影响跨期选择偏好,使个体更加偏好延迟奖赏,同时,个体的时间取向在其中起调节作用。     

低家庭社会阶层大学生为何更容易社交焦虑？——心理社会资源和拒绝敏感性的多重中介作用

在阶层的社会认知理论和备用容量模型框架下,探讨心理社会资源、拒绝敏感性在家庭社会阶层与大学生社交焦虑间的多重中介作用。选取1400名在校大学生为被试,采用与积极心理变量结果相关度最高的乐观、控制感、自尊和外向性四种人格特质问卷作为心理社会资源的测量工具,同时施测了MacArthur主观社会阶层量表、拒绝敏感性问卷、Liebowitz社交焦虑量表,还收集了被试的父母亲职业、受教育程度及月收入水平等客观家庭社会阶层指标。Bootstrap中介效应检验结果表明,家庭社会阶层显著负向预测大学生社交焦虑,心理社会资源水平、拒绝敏感性在二者间起到中介作用,同时家庭社会阶层还顺序性地通过先影响心理社会资源、再影响拒绝敏感性这一链式路径对社交焦虑产生影响。因此为了预防和干预低阶层大学生社交焦虑,未来可以考虑提升心理社会资源水平和降低拒绝威胁敏感性两种途径。     

高焦虑特质的注意偏向特点

采用“同中选异任务”范式,通过两个实验,检测了高、低焦虑特质在平静和焦虑状态下的注意敏感性和锁定特点。发现高焦虑特质对威胁信息并非特别敏感,而是一旦注意了,则锁定其中,难以摆脱。低焦虑特质则对快乐信息更敏感,而且更容易锁定其中,给予了更多的关注。研究推测,较高的状态焦虑,较容易产生紧张和焦虑,与高焦虑特质对威胁信息较强的注意锁定特点有密切关系