工作记忆中央执行成分对估算表现的影响

工作记忆中央执行成分在计算加工的诸多过程中发挥重要影响。以82名大学生为被试,采用双任务实验范式考察工作记忆中央执行成分对估算表现的影响。结果发现：1）估算过程需要中央执行成分的参与,增加中央执行成分负荷会导致估算准确率下降;2）无论是否增加中央执行负荷,问题大小效应在估算中均不明显;3）乘法个位数大小顺序会影响估算值的准确性,在有中央执行负荷时数字顺序效应明显。     

杜光庭与蜀地道教——兼论其咏道诗的思想内涵

唐朝是我国道教发展的繁盛时期,尤其是唐玄宗在位期间,李唐王朝的崇道活动更是被推向了顶峰。但是唐朝中期以后,道教在前进的发展进程中却遭遇到强劲的阻力,先是安史之乱,后     

Abnormal diurnal pattern of cortisol secretion in patients after aneurysmal subarachnoid hemorrhage

Substantial evidence suggests that impairment of the hypothalamus?pituitary system can occur following an aneurysmal subarachnoid hemorrhage (aSAH). Given that the diurnal cortisol rhythm is primarily controlled by the hypothalamus?pituitary system, this study examined whether changes in diurnal cortisol rhythm occurred after aSAH. Cortisol concentrations were measured in the saliva samples collected from patients after aSAH and other types of cerebral hemorrhage (non-aSAH) in the post-awakening period and at night (21:00?h), and the cortisol awakening response (CAR) and diurnal cortisol decline were determined. The area under the cortisol curve from immediately after to 45?min after awakening (CARauc) in the aSAH patient group was comparable to that in the non-aSAH or healthy control groups. However, an obvious cortisol peak was not found after the awakening period, and the morning/nighttime cortisol ratio in the aSAH patient group was significantly lower than that in other examined groups due to higher nighttime cortisol concentrations. In aSAH patients, the CARauc and nighttime cortisol concentrations were negatively correlated with the Fisher CT grade. These results indicate that the diurnal cortisol rhythm is not regulated normally after aSAH, and cortisol secretory activity decreases as the volume of subarachnoid bleeding increases. Our findings will be helpful to understand altered hypothalamus?pituitary?adrenal axis function after aSAH.     

内隐序列学习不受注意负荷的影响:来自眼动的证据

利用眼动记录方法,采用内隐序列学习的观察范式,通过操纵注意负荷高和低,考察内隐序列学习是否需要注意参与。结果发现:(1)在高、低注意负荷条件下都出现了内隐序列学习效应;(2)高注意负荷条件下眼跳反应时长于低注意负荷条件下的;(3)高、低注意负荷序列内隐序列学习量差异不显著,表明内隐序列学习不受注意负荷影响。     

Relations between coparenting and father involvement in families with preschool-age children

A sample (N = 112) composed primarily of European American and middle-class two-parent families with a resident father and a 4-year-old child (48% girls) participated in a longitudinal study of associations between coparenting and father involvement. At the initial assessment and 1 year later, fathers reported on their involvement in play and caregiving activities with the focal child, and coparenting behavior was observed during triadic family interactions. Structural equation modeling was used to test cross-lagged associations between coparenting behavior and father involvement. Overall, paths from father involvement to coparenting behavior were significant, but paths from coparenting behavior to father involvement were not. Specifically, greater father involvement in play was associated with an increase in supportive and a decrease in undermining coparenting behavior over time. In contrast, greater father involvement in caregiving was associated with a decrease in supportive and an increase in undermining coparenting behavior. Multigroup analysis further showed that these cross-lagged relations did not differ for dual-earner families and single-earner (father) families, but these relations appeared to differ for families with focal daughters and families with focal sons. These findings highlight the potential for fathering to affect coparenting and the importance of the role of contextual factors in coparenting-fathering relations.     

Attachment dismissal predicts frontal slow-wave ERPs during rejection by unfamiliar peers

Attachment representations are thought to provide a cognitive-affective template, guiding the way individuals interact with unfamiliar social partners. To examine the neural correlates of this process, we sampled event-related potentials (ERPs) during exclusion by unfamiliar peers to differentiate insecure-dismissing from securely attached youth, as indexed by the child attachment interview. Thirteen secure and 10 dismissing 11- to 15-year-olds were ostensibly connected with two peers via the Internet to play a computerized ball-toss game. Actually, peers were computer generated, first distributing the ball evenly, but eventually excluding participants. Afterward children rated their distress. As in previous studies, distress was related to a negative left frontal slow wave (500-900 ms) during rejection, a waveform implicated in negative appraisals and less approach motivation. Though attachment classifications were comparable in frontal ERPs and distress, an attachment-related dismissal dimension predicted a negative left frontal slow wave during rejection, suggesting that high dismissal potentially involves elevated anticipation of rejection. As expected, dismissal and self-reported distress were uncorrelated. Yet, a new approach to quantifying the dissociation between self-reports and rejection-related ERPs revealed that dismissal predicted underreporting of distress relative to ERPs. Our findings imply that evaluations and regulatory strategies linked to attachment generalize to distressing social contexts in early adolescence.     

“投桃报李”——互惠理论的组织行为学研究述评

互惠是一种存在于各种社会文化中的人际交往规范.组织行为学中许多研究都是通过互惠理论来解释变量之间的内部作用机制.文章回顾并讨论了互惠的涵义,不同互惠类型的特点及互惠的测量方式.此外.还论述了不同类型互惠对社会交换方式产生的影响.依据现有的互惠研究成果,分析了互惠发挥影响的内在作用机制是通过:互惠各方的价值观、互惠过程中各方感知到的风险、各方冲突的程度这三种途径来实现的.最后,根据现有互惠理论的研究成果提出该领域的未来发展应从研究设计和研究内容两方面进行扩展.     

农村留守儿童人格特征、应对方式与心理适应性关系

目的: 考察留守儿童的心理适应性及其与人格特征和应对方式的关系。方法: 运用艾森克人格问卷 (儿童版)、简易应对方式问卷和心理适应性量表对332名农村留守儿童进行测查。结果:（1）留守儿童心理适应性总体发展具有显著的年级和安置方式差异而性别差异不显著。（2）留守儿童的人格特征可以直接影响其心理适应性;应对方式可以直接影响心理适应性中的个别因子,还可以通过人格特征间接的对心理适应性产生影响。结论：留守儿童的人格特征直接影响其心理适应性;应对方式主要通过人格特征间接的影响其心理适应性。