Influence of caregiver burden on the association between daily fluctuations in pleasant activities and mood: A daily diary analysis

Much research has focused on behavioral activation and its effect on depression, but less is known about the effects of leisure activities on the two distinct affective domains of depression: positive affect (PA) and negative affect (NA). Furthermore, individual factors (i.e., stress level) may moderate the impact of behavioral activation on affect. The present study utilized a daily diary approach to examine the moderating effect of stress on the relationship between leisure satisfaction and both PA and NA. Twenty-five dementia caregivers completed activity and affect measures four times daily for 14 days. Results were analyzed using multilevel modeling, an approach that considers intra-individual differences in activity and affect over time. Results supported the hypothesis that caregivers with higher burden display a stronger association between leisure satisfaction and affect than caregivers with lower burden. Specifically, caregivers with higher burden had a stronger positive relationship between leisure satisfaction and PA and a stronger negative relationship between leisure satisfaction and NA. These findings suggest that screening caregivers for level of burden may help identify those most likely to benefit from behavioral interventions.     

汉语双字复合词识别中语义、词类和构词法信息的激活

以90名中国大学生为被试,采用启动条件下的词汇判断任务,探讨了SOA在57ms、157ms和314ms条件下汉语双字复合词语义、词类和构词法等词汇信息激活的相对时间进程。结果表明,在57ms时语义信息已经被激活,在157ms时语义和词类两种信息均被激活,在314ms时激活了语义、词类和构词法三类信息。汉语双字复合词识别中最先激活语义信息,接着激活词类信息,构词法信息激活最晚。语义和词类信息激活后,随着SOA增加,其激活强度有增强的趋势。语义信息在整个词汇信息激活中占有优势。     

System‐perpetuating asymmetries between explicit and implicit intergroup attitudes among indigenous and non‐indigenous Chileans

The present research demonstrates a dissociation between explicit and implicit intergroup evaluation in the reciprocal attitudes between indigenous (Mapuche) and non‐indigenous Chileans. In both social groups, the explicit measures of attitudes towards the respective in‐group and out‐group were compared with the Implicit Association Test scores. The results indicate that the members of the low‐status minority might explicitly express a moderate evaluative preference for their in‐group but might implicitly devalue it. Conversely, the members of the high‐status majority might implicitly devalue their out‐group but might explicitly express no bias. These results are theoretically framed in terms of system justification, conventional stereotypes and motivated correction processes.     

“Math is Hard!” The effect of gender priming on women’s attitudes

In three studies, we examined the effect of a self-relevant category prime on women’s attitudes towards the gender-stereotyped domains of arts (positively stereotyped) and mathematics (negatively stereotyped). In Study 1, women who were subtly reminded of the category female (Study 1a) or their gender identity (Study 1b) expressed more stereotype consistent attitudes towards the academic domains of mathematics and the arts than participants in control conditions. In Study 2, women who were reminded of their female identity similarly demonstrated a stereotype-consistent shift in their implicit attitudes towards these domains relative to women in a control condition. The potential role of the working self-concept in mediating social category priming effects as well as the practical implications of these findings are discussed.     

正、负性情绪的跨文化心理测量:PANAS维度结构检验

对中国大学生(N=201)和美国大学生(N=321)进行PANAS测评,以检验该量表中、英文版的因素效度。探索性因素分析会聚性地验证了该量表的PA和NA两维度结构具有跨文化一致性,中、英文量表两因子的累积方差贡献率分别为51.31％和44．25％,接近Watson等的研究结果。然而研究结果也显示测项偏差问题,因此中文量表的PA分量表的测项组成不等同于原量表。中、英文量表的PA与NA分量表同样具有较高内在一致性信度,表明其符合心理测量学要求。     

Deflecting negative self-relevant stereotype activation: The effects of individuation

Under stereotype threat, when an individual risks confirming a negative self-relevant stereotype, activation of the stereotype can inhibit performance on a subsequent, related task. Although a significant amount of research has been devoted to examining the effects of stereotype activation on performance, relatively little is known about successful methods of intervention. Two experiments tested the hypothesis that individuation prior to performance would eliminate impairment due to stereotype activation. In both studies, Caucasian female participants in either a gender-prime or no-prime condition were administered a mathematics test. Gender primed, individuated participants outperformed gender primed, non-individuated participants and performed as well as unprimed, non-individuated (i.e., control) participants, supporting individuation as a protective measure against the detrimental effects of negative stereotype activation.     

语义关联的注意捕获——来自线索化范式的证据

采用线索化范式, 操作性地建立线索和靶子的语义关联, 考察语义关联对注意捕获的影响。实验1采用特征线索意义靶子的形式, 建立某一特定语义水平的注意控制定势, 发现线索靶子语义一致时线索捕获注意, 线索靶子语义不一致时同样的线索失去捕获注意的能力。实验2随机呈现线索颜色和靶子汉字, 建立两种语义概念的注意控制定势, 发现所有的线索都出现了捕获效应, 而不论其在某一具体试次中是否与靶子意义一致。实验3交换了线索与靶子的属性及概念, 采用意义线索特征靶子的形式, 结果与实验1一致。这些结果表明, (1)语义关联的注意捕获符合关联性的无意注意定向假说, 刺激的捕获能力受当前的注意控制定势调节; (2)由语义概念激活的知觉表征在调节空间注意分配上与其自身相比形式相同, 但程度有所下降; (3)知觉特征水平的注意控制定势能够激活与其相应的语义概念, 使其吸引注意并调节空间注意分配; (4)知觉表征和语义概念的激活可能是双向的, 激活后在指导注意转移上表现出相同的特性。     

社会认知双加工视角下的刻板印象激活机制

刻板印象激活过程中意识干预与否的问题,催生了内隐与外显两种激活理论长久以来的争端。其根源在于现有研究的刻板激活操作不严谨、两类范式不可比等多个方面。社会认识双加工理论提供了独特的分阶段比较视角。在该理论视角下,文章从梳理内隐及外显理论争端入手,分析各自存在的问题,并以双加工理论为指导,设计了一项内隐及外显任务分离启动研究,以期为探明刻板印象的认知激活机制,提供方法上的支撑。     

Physical home environment is associated with prefrontal cortical thickness in adolescents

Biologically embedded experiences alter developmental trajectories in ways that can influence health, learning, and/or behavior. These systematic differences in experiences may contribute to different biological outcomes as individuals grow and develop, including at the neural level. Previous studies of biologically embedded experiences on neurodevelopment have focused on large‐scale institutional or economic factors (e.g. socioeconomic status [SES]) and psychosocial factors (e.g. caregiving behavior). Less attention has focused on how the quality of the immediate home settings, such as the physical home environment (PHYS), influences neurodevelopment. Moreover, no study has investigated these effects in adolescents, who undergo significant physical maturation and neurodevelopment that may influence how they respond to their physical environments. The goal of the current study was to examine whether PHYS quality is biologically embedded in the developing adolescent brain as evidenced by cognitive achievement and cortical development in 56 (48% female) healthy adolescents (14–18 years (M = 16.83 years, SD = 1.17). Using in‐home assessments of the physical home environment, anatomical brain scans, and indices of academic achievement, we found that adolescents who have more physical problems in the home (e.g. structural hazards, crowding, excessive noise, poorly lit) have thinner prefrontal cortices, which was associated with lower levels of reading achievement, independent of SES and psychosocial factors. By conducting home visits to assess physical characteristics of adolescents’ home, we highlight a typically overlooked aspect of the home environment that has relevance for adolescents’ cognitive and brain development.     

Does experienced pain affects local brain volumes? Insights from a clinical acute pain model

Background/Objective:To study pain-brain morphometry associations as a function of post-surgery stages (anesthesia, pain and analgesia) in an acute pain model. Method:Impacted mandible third molar were extracted. Before surgery, an anatomical T1 scan was obtained. Regional brain volumen and subcortical nuclei shapes were obtained. Statistical analyses were done using multiple regression, being pain scores the predictors and voxel volumes, subcortical nuclei volumes and subcortical nuclei shapes, the outcomes. Results:Pain was significantly larger at pain than at anesthesia and analgesia stages, and was higher during anesthesia than during analgesia. Pain intensity was related to grey matter in several cortical (Insula, Mid Frontal and Temporal Gyruses, Precuneus, Anterior Cingulate), and subcortical nuclei (Hippocampus, Thalamus, Putamen, Amygdala), depending of the post-surgical stage. A larger number of brain areas showed significance at pain that at anesthesia and analgesia stages. Conclusions:The relationships of regional brain volumes and subcortical nuclei shapes with pain scores seemed to be unsteady, as they changed with the patient's actual pain stage.