中国居民健康膳食行为意向及其对抑郁症状的影响

健康膳食行为意向是指个体对自身即将做出的膳食行为进行健康取向的评估与判断。通过两个研究对1848位中国居民的健康膳食行为意向及其抑郁症状进行调查，结果表明：编制的《中国居民健康膳食行为意向问卷》具有良好的信效度，是适合研究中国居民健康膳食行为意向的原创性测评工具；中国居民健康膳食行为意向由调味适当、膳食平衡、食物多样和食量控制四个因素组成，并且均与抑郁症状存在显著的负相关关系，其中食量控制和食物多样对预测抑郁症状有一定作用。     

n-3系多元不饱和脂肪酸对抑郁症的影响及其机制

越来越多的实验证据表明,n-3系多元不饱和脂肪酸(n-3PUFA)与抑郁症之间存在联系,二十二碳六烯酸(DHA)和二十碳五烯酸(EPA)可能具有预防和治疗抑郁症的作用.回顾国内外关于n-3PUFA与抑郁症之间存在的负性关系的研究并介绍其主要的研究结果和现状,解释n-3PUFA引起的抗抑郁效果可能涉及的神经机制,包括神经传递、葡萄糖的新陈代谢、促炎细胞因子的分泌、5-羟色胺(5-HT)以及脑源性神经营养因子(BDNF)的水平、还有神经元的凋亡等的变化.并且总结现有研究中存在的一些问题,例如使用的n-3PUFA种类和剂量问题,DHA或EPA是否对于不同种类的抑郁症均有效,单独作用还是共同作用才能引起抗抑郁效果等等,n-3PUFA对抑郁症病理机制的具体影响可能是未来的研究方向.     

动态系统累积变量判断中的关联启发式

关联启发式是指在累积变量判断中, 将存量与流量建立正相关关系, 认为存量变化特征与流量变化特征具有相似性而导致判断偏差的思维模式。在多特征交互及简单动态系统任务判断中, 关联启发式偏差以不同形式的S-F错误表现出来。作为一种内生性的、顽固的思维模式, 对于关联启发式的心理机制提出了客体偏差、特征替代、不充分调整等多种观点解释。影响关联启发式的个体因素和情境因素的研究结果不尽一致。由于关联启发式偏差直接影响人对复杂系统的可持续性决策和行动, 减少偏差策略的研究也已实现起步。本文系统总结和分析了关联启发式研究的发展脉络, 针对澄清关联启发式的发生机制、系统考察关联启发式的影响因素及其相互作用、丰富和深化关联启发式的研究范式、开发减少关联启发式的有效途径等方面, 提出了深化研究的方向和思路。     

执行功能与攻击行为关系的研究

攻击行为产生的原因十分复杂,受当今认知神经科学的影响,心理学研究人员从执行功能的角度来探讨攻击行为。现有的研究主要从心理学、流行病学、行为神经学、神经心理学和神经成像角度,考察和分析二者内在的关联,结果表明在暴力犯罪、反社会人格、杀人犯、精神病患者、少年犯、注意缺陷-多动障碍等群体,执行功能与攻击行为间存在很强的负向关联。将来的研究需要拓宽研究被试群体,深入考察内在的脑机制,制定恰当的攻击行为干预方法。     

基于N-back任务的抑郁群体工作记忆更新研究进展和展望

工作记忆更新的缺陷与抑郁症状显著相关。研究抑郁群体工作记忆更新的异常对于深入了解抑郁症的病理机制以及建立更加完善有效的抑郁评估方法具有重要的理论和现实意义。N-back是考察工作记忆更新的经典范式。研究表明,情绪对N-back任务会产生影响,工作记忆中情绪内容的更新比中性内容的更新更困难,而认知负荷是其中的调节因素。抑...     

博弈决策影响因素及内在机制研究现状与展望

博弈决策是指“在包含利益相互依存的两个或多个参与者的博弈情境中所进行的行为决策”。博弈决策自进入心理学研究后已成为决策心理研究领域的热点。本文述评了博弈决策的影响因素及神经生理机制的研究现状;对未来研究方向进行了展望,包括加强内在机制研究与综合理论模型建构、改进和完善研究范式与加强对多种范式的考察、加强相关认知及情绪能力的作用机制研究、加强对语言等影响因素的跨文化与文化间比较、加强应用与训练研究。     

青少年抑郁:基于社会支持的视角

青少年罹患抑郁的社会因素受到研究者们的密切关注,尤其是社会支持因素。本文首先总结了社会支持与青少年抑郁关系的内在机制,包括主效应机制和缓冲效应机制;其次论述了影响社会支持与青少年抑郁关系的多种因素,主要涉及来自于社会支持提供者、社会支持接受者和测量方法等方面的因素。社会支持提供者因素包括性别、数量和社会地位;社会支持接受者因素包括性别、年龄、个体内在特征、人格特征以及遗传;此外方法主要涉及社会支持与抑郁症的测量。最后提出了未来的研究方向,如测量方法的改进、元分析纵向研究的开展、线上支持的研究,为青少年抑郁的社会干预提供更多的研究视角。     

青少年抑郁:基于社会支持的视角

青少年罹患抑郁的社会因素受到研究者们的密切关注,尤其是社会支持因素。本文首先总结了社会支持与青少年抑郁关系的内在机制,包括主效应机制和缓冲效应机制;其次论述了影响社会支持与青少年抑郁关系的多种因素,主要涉及来自于社会支持提供者、社会支持接受者和测量方法等方面的因素。社会支持提供者因素包括性别、数量和社会地位;社会支持接受者因素包括性别、年龄、个体内在特征、人格特征以及遗传;此外方法主要涉及社会支持与抑郁症的测量。最后提出了未来的研究方向,如测量方法的改进、元分析纵向研究的开展、线上支持的研究,为青少年抑郁的社会干预提供更多的研究视角。     

我国膳食营养结构与疾病发病率的关系

膳食营养结构与疾病发病率之间存在密切的联系。从改革开放前后的对比来看,近30多年来我国人均预期寿命增长明显放缓。究其原因,除了医保缺失和生存环境压力加大以外,国民膳食结构的急剧转换也是重要因素之一:与居民饮食结构由"一高三低型"向"三高一低型"快速转变相伴随的,是慢性病的发病率大幅度上升。     

社会支持与成年早期孤独感：有调节的中介模型

为探讨社会支持与成年早期孤独的关系,调查了556名大学生,运用SEM法、Bootstrap法、多组分析法考察社交自我效能与负性情绪在其中的影响机制及留守经历的调节。结果表明：社交自我效能、负性情绪在社会支持和孤独感之间的中介效应显著;社交自我效能和负性情绪在社会支持对孤独感的影响中起链式中介作用;留守经历对社会支持和孤独感关系存在调节作用。研究结果证实了社会支持影响孤独感及社交自我效能和负性情绪在其中的内在机制。     

CHRM2基因rs1824024多态性与青少年早期抑郁的关系

运用问卷法与DNA分型技术,以127名高和低抑郁组初中生为被试,考察CHRM2基因rs1824024多态性与青少年早期抑郁的关系,重点探讨负性生活事件、青少年性别与年级的调节作用。结果发现,CHRM2基因rs1824024多态性与女青少年的抑郁边缘显著关联,T等位基因携带者患高抑郁的风险较低,但该位点与男青少年的抑郁无关;在那些经历低水平负性生活事件的青少年中,T等位基因携带者患高抑郁的可能性边缘显著低于GG型基因携带者;rs1824024多态性与年级对青少年早期抑郁无显著交互作用。     

Depression in adults with type 2 diabetes: the role of adherence, body mass index, and self-efficacy.

Considerable evidence links depression with the development and worsening of diabetes, but the factors contributing to this link have not been established. The authors examined the role of adherence, body mass index (BMI), and self-efficacy. Adult patients with Type 2 diabetes (N = 56) completed self-report measures of diet and exercise adherence, diet and exercise self-efficacy, and depression. BMI was obtained from medical records. Path and mediation analyses indicated that both adherence and BMI independently contributed to self-efficacy. Self-efficacy mediated both the association between adherence and depression and the association between BMI and depression. These findings are consistent with the proposal that lower self-efficacy in reaction to adherence failure and higher BMI contributes to depression in adults with diabetes.     

What role does neuroticism play in the association between negative job characteristics and anxiety and depression?

Many studies have established an association between job characteristics and anxiety and depression and noted that personality characteristics such as neuroticism likely play a role in creating or modifying these associations. Few studies, however, have explicitly tested or compared these possible alternative roles. In this study, we tested several specific hypotheses about neuroticism and its effects on job characteristics, anxiety and depression and their association in a series of structural equation models. Participants (N = 372) completed the Big Five Inventory, Job Contents Questionnaire and General Health Questionnaire. We tested (a) whether neuroticism is likely to be an important confounder of the association between job characteristics and anxiety and depression and (b) whether neuroticism moderates the association between job characteristics and anxiety and depression. Results indicated large attenuations by neuroticism of the association between job characteristics and anxiety and depression but there remained significant effects of psychological demands on anxiety, and social support on depression independent of neuroticism. Evidence was also found for interaction effects between neuroticism and decision latitude, with those lower in neuroticism being at higher risk for depression under conditions of low control.     

Dietary ethyl-eicosapentaenoic acid but not soybean oil reverses central interleukin-1-induced changes in behavior, corticosterone and immune response in rats

Omega (n)-3 and n-6 fatty acids are important membrane components of neurons and immune cells, and related to psychiatric and inflammatory diseases. Increased ratio of n-6/n-3 in the blood has been reported in depressed patients and in students following stress exposure. The n-3 fatty acid, eicosapentaenoic acid (ethyl-EPA) suppresses inflammation and has antidepressant properties. Interleukin (IL)-1beta can stimulate corticosterone secretion, induce anxiety and stress-like behavior and inflammatory responses. This study was to evaluate the effect of diets enriched with coconut oil, ethyl-EPA and soybean oil on central IL-1beta induced stress and anxiety-like behavior, induced changes in the concentration of prostaglandin (PG) E2 and corticosterone and the release of IL-10. Groups of rats were fed with either 5% coconut oil (as control diet), 0.2% EPA with 4.8% coconut oil or 1% EPA with 4% coconut oil and 5% soybean oil for 7 weeks. The central administration of IL-1beta induced sickness, stress and anxiety-like behavior as indicated by a reduction in body weight, decreased time spent, and the number of entries, into the open arms of the elevated plus maze and decreased exploration and entry into the central zone of the "open field" apparatus. IL-1beta also increased PGE2 and corticosterone concentrations and decreased the release of IL-10 from leucocytes. Food enriched with ethyl-EPA but not soybean oil, significantly attenuated most of these changes. These results demonstrate that ethyl-EPA has anti-inflammatory, anti-stress and anti-anxiety effects in rats.     

Testing Models of Associations Between Depression and Parenting Self-efficacy in Mothers: A Meta-analytic Review

Numerous cross-sectional studies confirm the long-theorized association between mothers’ depression and lower parenting self-efficacy (PSE) beliefs. However, cross-sectional studies leave unanswered the direction of this association: Does depression predict PSE? Does PSE predict depression? Are both true? Does the strength of the association between depression and PSE, regardless of the direction, generalize across participant characteristics and study design features? How stable is PSE over time? And how effective are interventions at enhancing PSE? To answer these questions, we conducted a meta-analytic review of longitudinal studies. With 35 eligible studies (22,698 participants), we found support for both models: there was a significant pooled effect of both depression on PSE and of PSE on depression, with nearly identical effect sizes (d?=?????0.21 and ??0.22, respectively). The association was stronger in samples with mothers’ younger average age and studies that measured PSE among mothers relative to during pregnancy. We found a medium degree of stability in the index of PSE, d?=?0.60. Finally, the estimated pooled effect size between being in an intervention group versus control group and PSE was 0.505. Overall, we found support for (1) bidirectional associations between depression and PSE in mothers, (2) the stability of PSE over time, and (3) the strength of the relationship between PSE and depression with intervention. These results suggest the importance of continuing to develop, test, and disseminate interventions to enhance PSE. We interpret these findings in the context of both depression and low PSE having serious consequences for child outcomes and maladaptive parenting.

     

The Moderating Effects of Age on the Relationships of Self‐Compassion,Self‐Esteem,and Mental Health

This study investigated the interactive effects of self‐compassion, self‐esteem, and age on mental health. Numerous previous studies have found that self‐compassion has a significant positive association with well‐being but most of these studies were conducted with young adults represented by college students. This study extended the previous findings by comparing its distinctive functions in different age groups. A total of 1,813 adults whose age ranged from twenties to fifties (M = 39.28 years, SD = 11.27) completed a questionnaire measuring self‐compassion, self‐esteem, subjective well‐being, and depression. The results of hierarchical regression analysis indicated that the positive relationship between self‐compassion and subjective well‐being was rendered stronger with older adults. In addition, self‐compassion moderated the relationship between self‐esteem and depression regardless of age. These results imply that self‐compassion may be complimentary to self‐esteem in improving mental health, especially for older adults.     

Exercise and Diet as Potential Moderators Between Trauma,Posttraumatic Stress,Depression, and Relationship Quality Among Emerging Adults

Exercise and diet have not been examined as potential protective factors between trauma and trauma-related sequelae. Using data collected from emerging adults (N = 321), we tested a path analysis to determine if exercise and diet would moderate the association between the number of potentially traumatic life events experienced and posttraumatic stress, depression, and relationship quality. More exercise was directly associated with higher posttraumatic stress and depressive symptoms. A healthier diet was directly associated with lower posttraumatic stress, lower depressive symptoms, and higher relationship quality. Results suggest there may be value in highlighting exercise and diet in family therapy.     

Poststroke depression: Prevalence,course, and associated factors

Despite the considerable amount of research that has been undertaken on poststroke depression, a review of the literature demonstrates that there are many inconclusive findings in the area. In particular, the causes and course of the disorder remain to be firmly established. While studies of prevalence differ with respect to the nature and timing of their assessment procedures, most conclude that poststroke depression has a negative impact on the rehabilitation of the stroke patient. Very little research is available on the relationship between poststroke depression and care-giver burden. However, recent studies have adopted more rigorous methodological procedures, allowing some insights into the complex mixture of factors which determine the occurrence of poststroke depression.     

Indirect pathways between depressive symptoms and marital distress: the role of conflict communication, attributions, and attachment style

Previous studies have focused on concomitants of depression and marital distress in order to help explain the relationship between the two, suggesting that several variables, such as conflict communication, attributions, and attachment style, are associated with depression, marital distress, or both. Our contention is that the selected variables may be important mediators (hypothesis 1) or moderators (hypothesis 2) of the concomitance between depression and marital adjustment, exploring the direct and indirect ways in which depressive symptoms and marital adjustment are related. In total, 415 heterosexual couples were recruited, and a series of regression analyses was conducted to test our hypotheses separately for men and women. Results indicated that demand-withdrawal, avoidance, causal attributions, and secure, ambivalent, and avoidant attachment mediated the relation between depressive symptoms and marital adjustment in the female sample, whereas constructive communication and causal and responsible attributions were significant mediators of men's levels of depressive symptoms and marital adjustment. In addition, avoidance and secure attachment moderated the association between depressive symptoms and marital adjustment in the female sample, and causal attributions were significant moderators of the association between depressive symptoms and marital adjustment for men. Several conclusions and implications for theory and future research are discussed.