The moderating effects of gender on the associations between multidimensional hostility and psychosomatic symptoms: a Chinese case

The purpose of this study was to examine the effects of gender on the relationship between multidimensional hostility and psychosomatic symptoms in Chinese culture. The participants in this study were 398 Chinese college students (40% female) recruited from Taiwan. Four dimensions of multidimensional hostility-hostility cognition, hostility affect, expressive hostility behavior, and suppressive hostility behavior-were measured by the Chinese Hostility Inventory. After controlling for the effects of depression and anxiety, the results of path analysis revealed that the multidimensional hostility predicted psychosomatic symptoms directly, and predicted psychosomatic symptoms indirectly through negative health behavior. Furthermore, gender moderated the relationships between multidimensional hostility and health outcomes. Expressive hostility exacerbated psychosomatic symptom in females but buffered it in males, while affective hostility exacerbated psychosomatic symptoms in males. Additionally, suppressive hostility behavior was correlated to psychosomatic symptoms indirectly through negative health behavior in females. Moreover, expressive hostility was correlated to psychosomatic symptoms indirectly through negative health behavior more in males than in females.     

Decreased parahippocampal activity in associative priming: evidence from an event-related fMRI study

In recent years, there has been intense debate on the neural basis of associative priming, particularly on the role of the medial temporal lobe (MTL) in retrieving associative information without awareness. In this study, event-related fMRI was used while healthy subjects performed a perceptual identification task on briefly presented unrelated word pairs and an associative recognition memory task. Contamination of priming by explicit memory was successfully controlled, as associative priming and explicit memory were dissociated on the behavioral level. The fMRI results showed a functional dissociation within the MTL with respect to associative priming effects. The right parahippocampal cortex, but not the hippocampus, showed decreased activation for old vs. new pairs and old vs. recombined pairs (associative priming). The bilateral hippocampus and the right parahippocampal cortex were involved in explicit associative memory. These data provide evidence that subregions of the MTL participate in associative priming even when explicit involvement was controlled. Thus, different regions within the MTL play distinct roles in explicit and implicit associative memory.     

中枢胆碱能系统在小鸡记忆形成过程中的作用

中枢胆碱能系统在记忆形成过程中的特异性作用仍有待于进一步探讨。该研究观察了东莨菪碱对小鸡一次性被动回避行为的影响,主要结果如下：１．训练前颅内注射一定剂量的东莨菪碱可引起一日龄小鸡的记忆障碍;２．无论是训练前１５分钟还是训练前３０分钟注射,东莨菪碱引起的记忆障碍均起始于训练后１５－２０分钟之间;３．研究中所用剂量的东莨菪碱不影响小鸡的啄食行为、味觉功能及兴奋水平。上述结果提示,中枢胆碱能系统可能较特异性地参与中时记忆的形成过程。     

大学生道德情感问卷的初步编制*

采用理论分析和开放式问卷调查等方法提出大学生道德情感的基本结构并编制了问卷初始条目。先以259名大学生为被试,对自编初始问卷进行预测,探索性因素分析显示,大学生道德情感包括3个因素:爱国感、责任感和正直感。再对622名大学生进行正式施测,进行验证性因素分析和信度分析。结果显示,总问卷α系数为0.77,重测信度0.72。验证性因素分析各项拟合指标较为理想,具有较好的结构效度。因此,编制的问卷具有较好的信效度,是测量大学生道德情感的有效工具。     

暴力电子游戏玩家对攻击性图片注意偏向的ERP研究

本研究采用游戏使用习惯问卷筛选暴力电子游戏玩家和对照组被试各24名,利用线索探测范式,探讨了暴力电子游戏玩家对攻击性图片的注意偏向机制。结果发现：（1）与对照组相比,暴力电子游戏玩家对攻击性图片线索下探测目标诱发的P1潜伏期提前;（2）暴力电子游戏玩家表现出特定的脑电模式：N1潜伏期延长,P2波幅减小,P300波幅降低;（3）线索的有效性效应表现在早期ERP成分（P1）中。结果表明,暴力电子游戏玩家对攻击性图片表现出注意偏向,其脑电模式揭示暴力电子游戏对玩家的认知功能有消极影响。     

Impaired directed forgetting in abstinent heroin addicts

Drug-related memories persist long into abstinence and are potent elicitors of drug craving and relapse. We report two experiments examining whether heroin-dependent individuals are impaired in intentionally suppressing drug-related memories. Experiment 1 adopted the Item paradigm where addicts and healthy controls were presented with a list of words each followed by a remember or forget cue. Experiment 2 adopted the List paradigm where they studied one list of items and were then split into a remember group and a forget group. Both groups studied a second list, except that the forget group was told to forget the first list. Compared with controls, addicts showed a reduced directed forgetting effect in the Item method and a total absence of one measure of directed forgetting in the List method (List 2 benefits). Results indicate that heroin addicts are impaired in directed forgetting and that the deficits are likely associated with memory encoding as opposed to retrieval. Possible problems include reduced ability in actively suppressing/stopping encoding of irrelevant information into memory or inability in changing/resetting encoding strategies. In neither experiment did the addicts show any differential directed forgetting effects between drug-related words and neutral words, indicating the generic nature of their intentional forgetting deficits.     

汉语形声字声旁家族大小对整字发音的影响

拼音文字阅读中的“家族效应”是语音通达研究的一个重要角度,然而,汉字语音通达的家族效应研究却未见报道。本文运用快速命名的实验范式,对汉字形声字声旁家族大小对整字语音通达的影响进行了研究。结果发现汉字阅读中也存在家族效应,但是与拼音文字正好相反,声旁家族越大,反应时越长,在不规则汉字阅读中表现更为明显,显示了汉语语音通达有别于拼音文字的特殊性。另外,作者在研究基础上提出了一个汉字形声字阅读的模型,以期更深入地揭示汉字形声字阅读的认知机制     

Organizational commitment and job performance: Examining the moderating roles of occupational commitment and transformational leadership

To address why the relationship between affective organizational commitment and job performance varies, we draw on the theorization of Meyer, Becker, and Vandenberghe to propose moderation of affective occupational commitment and transformational leadership, separately and interactively. Data collected from 398 employees and their supervisors supported our hypotheses. Specifically, affective organizational commitment was more strongly associated with job performance for employees with high occupational commitment, or when a supervisor's transformational leadership was high. Importantly, in a moderated mediation relationship, we found the effect of transformational leadership on the relationship between affective organizational commitment and job performance for employees with high occupational commitment was contrary to its effect on employees with low occupational commitment. Given the significant roles of both commitments as discussed in the present study, we offer suggestions on how to consider these factors during the assessment and selection of personnel and role assignment.     

大学校园压力的类型和特点

本研究有两个主要目的：第一,探讨大学校园压力的类型;第二,分析大学校园压力的特点。研究分三个步骤,第一个步骤(研究一)采用开放式问卷方法探讨大学校园的主要压力源。第二个步骤(研究二)通过对开放式问卷的结果进行因素分析,确定压力类型。第三个步骤(研究三)采用量表测试方法分析大学校园压力的特点。主要测量工具为《大学生压力量表》。被试取自北京市两所高校的一至三年级大学生,共1295人。结果显示：大学校园压力的主要类型为：学习烦扰,个人烦扰和消极生活事件。大学校园压力的主要特点是：日常烦扰所产生的压力为主要压力,而突发性消极事件并非大学生压力的主要来源。