类别空间关系加工系统和数量空间关系加工系统的分离 ——来自多领域的研究证据

Kosslyn认为人类的空间关系加工系统分为类别空间关系加工子系统和数量空间关系加工子系统,这两个子系统不仅存在功能上的分离,并且存在大脑神经水平的分离,这种神经水平的分离表现为两种空间关系加工的大脑半球偏向,即类别空间关系加工的左半球偏向与数量空间关系加工的右半球偏向。对两种空间关系加工的研究,涉及的领域从低水平的空间知觉,至表象、记忆、语言、行动及物体识别等,涉及的研究方法包括半视野速示法,神经网络模拟,PET, fMRI, ERP, rTMS,脑损伤病人的研究及比较动物研究。综合现有研究,虽然大多数研究中得到的脑半球偏向为两种加工子系统在神经水平的分离提供了证据,但不同研究中脑半球偏向的获得是相当不稳定的,并且受到研究方法因素的影响。尽管造成神经水平的分离似乎与大脑左右半球对具有不同感受野特征的神经元输出的偏向有一定的关系,但这仍需要进一步的研究证据     

感觉寻求对工读生病理性网络使用的影响机制

采用感觉寻求量表、压力性生活事件量表、非适应性问卷和病理性网络使用量表对519名工读生进行调查,考察了工读生病理性网络使用的情况以及感觉寻求对工读生病理性网络使用的影响及作用机制。结果表明：（1）工读生病理性网络使用的比例为51.1%,工读生病理性网络使用的问题很严重;（2）感觉寻求对工读生病理性网络使用的影响是有中介的调节效应,具体而言,感觉寻求会增加工读生病理性网络使用;压力性生活事件对感觉寻求与工读生病理性网络使用之间关系具有调节作用;压力性生活事件的调节效应以非适应性认知为中介变量。研究结果对工读生病理性网络使用的预防和干预具有重要价值。     

幼儿心理理论与时序记忆的关系——来自时序记忆分离的证据

研究检验了时序记忆与心理理论的关系.实验一对39个3.5～5.5岁儿童的时序记忆能力以及心理理论表现进行测查,考察了因果关系、相关关系、无因果无相关关系三类不同性质的材料测得的时序记忆与心理理论的关系;90个儿童参与了实验二,通过正叙、倒叙、预叙三种叙述方式将时序记忆分离为理解性时序记忆和机械性时序记忆,再分别考察与心理理论的关系.结果发现,在不同性质的实验材料中,时序记忆与心理理论相关均不显著;5.5岁儿童的理解性时序记忆显著高于3.5岁儿童,4.5岁、5.5岁儿童的机械性时序记忆显著高于3.5岁儿童;只有理解性时序记忆能够预测儿童的心理理论成绩.     

Distinguishing Between the Facilitating and the Self-Serving Charismatic Group Leader

Winnicott informed us about the components of the facilitating environment. Kohut warned us to differentiate between the charismatic leader, who looks for enfeebled followers to further his own grandiose ambitions, and the idealizable leader whose actions are based on a sense of values. Findings from attachment theory and neurobiology indicate how specific developmental issues make for a perfect fit between the self-serving charismatic leader and those who have been deprived of attuned interactive regulation and secure attachment in early childhood. This article attempts to integrate the above ideas for application to group dynamics in therapeutic, supervisory, training, and institutional groups.     

Recovering memories of trauma: A view from the laboratory

The controversy over the validity of repressed and recovered memories of childhood sexual abuse (CSA) has been extraordinarily bitter. Yet data on cognitive functioning in people reporting repressed and recovered memories of trauma have been strikingly scarce. Recent laboratory studies have been designed to test hypotheses about cognitive mechanisms that ought to be operative if people can repress and recover memories of trauma or if they can form false memories of trauma. Contrary to clinical lore, these studies have shown that people reporting CSA histories are not characterized by a superior ability to forget trauma-related material. Other studies have shown that individuals reporting recovered memories of either CSA or abduction by space aliens are characterized by heightened proneness to form false memories in certain laboratory tasks. Although cognitive psychology methods cannot distinguish true memories from false ones, these methods can illuminate mechanisms for remembering and forgetting among people reporting histories of trauma.     

Hair cortisol in relation to acute and post-traumatic stress symptoms in children and adolescents

Background: We report on the preliminary results of two independent studies that (1) compare the hair cortisol concentrations (HCC) of healthy controls with patients displaying post-traumatic stress symptoms (PTSS, study 1+2), (2) investigate whether pre-trauma HCC are predictive for the development of acute stress symptoms (ASS) and PTSS (study 1) and (3) determine whether HCC correlate with PTSS in a clinical sample of children (study 2).

Methods: In study 1, the clinical symptoms of 35 minors were examined one (T1) and seven weeks (T2) after surgery following an accident. Hair samples were taken after the accident that reflect cortisol secretion over the past three months before the accident (healthy controls). In study 2, HCC and PTSS symptoms were cross-sectionally assessed in 22 minors who had experienced a psychological trauma.

Results: The HCC of patients with PTSS were lower than the HCC of healthy controls (study 1+2). Secondary analyses showed that HCC were significantly lower in male PTSS patients than in male healthy controls, whereas the HCC in females were comparably low in both groups. Pre-trauma HCC did not predict the total ASS and PTSS scores (study 1) and HCC were not directly related to the total PTSS scores (study 2).     

The relationship between suppression and subsequent intrusions: the mediating role of peritraumatic dissociation and anxiety

Background and objectives: Although previous studies showed that thought and emotion suppression represent risk factors for intrusions development, the mechanisms that explain these relations were less explored. This study aims to examine the relationships between thought and emotion suppression and the symptoms of intrusion following the exposure to a trauma-related event. Moreover, we explored if these relationships would be mediated by peritraumatic state dissociation and state anxiety.

Design and methods: The trauma film paradigm was used and the participants were students (N?=?148) experimentally exposed to an aversive film to model a traumatic experience. Thought and emotion suppression were measured before the trauma exposure. After exposure, the participants completed scales for measuring state dissociation and state anxiety. Intrusive images and thoughts of the film were recorded in the subsequent week using an intrusion diary.

Results: Thought suppression predicted intrusive thoughts frequency, and this effect was mediated by the peritraumatic anxiety. State anxiety predicted both intrusive images and thoughts, while state dissociation only predicted intrusive images.

Conclusions: Intrusive images and intrusive thoughts are different phenomena and they are predicted by different variables. The practical implications of these results for posttraumatic stress disorder treatment and secondary traumatization are discussed.     

Silenced by Betrayal: The Path from Childhood Trauma to Diminished Sexual Communication in Adulthood

Betrayal traumas (Freyd, 1996), abuses that violate trust or dependency, predict numerous negative outcomes, including dissociation and revictimization (DePrince & Freyd, 2007; Gobin & Freyd, 2009; Goldsmith, Freyd, & DePrince, 2012). No previous empirical research examines the relation between betrayal and sexual health, including dissociation during sex. This article addresses this gap with 2 studies, which provide support for a multiple mediation model where high betrayal in childhood predicts worsened sexual communication in adulthood through trait dissociation and sexual dissociation in serial. In both studies, the direct path between betrayal and sexual communication was nonsignificant; only when accounting for trait dissociation overall and sexual dissociation in particular does childhood betrayal predict diminished communication with sex partners in adulthood.     

学校氛围和青少年病理性网络游戏使用的关系:有调节的中介模型

采用问卷法对3056名青少年进行调查研究,考察了学校氛围对青少年病理性网络游戏使用(Pathological online game use, POGU)的影响,同时考察了学校参与在其中的中介作用,以及该过程是否受到父子关系或母子关系的调节.结果发现:(1)在控制了性别、年龄、父母受教育水平、亲子关系、家庭收入和冲动性后,学校氛围对POGU仍具有显著的负向预测作用;(2)学校氛围不仅可以直接负向预测POGU,还可以通过影响学校参与进而间接预测青少年POGU;(3)母子关系显著调节学校氛围对学校参与的影响,而父子关系显著调节学校参与对青少年POGU的作用.总之,在学校氛围影响青少年POGU的过程中,既存在中介效应,又存在调节效应.实际干预时,可以通过提高学校参与降低青少年POGU,父子关系和母子关系可以进一步调节该过程.