震前生活事件、创伤程度对中学生震后心理应激状况的影响

采用青少年生活事件量表（ASLEC）、自编震后创伤程度调查表和PTSD自评量表对汶川地震区413名中学生进行问卷调查,探讨震前生活事件、创伤程度对震后心理应激反应的影响。结果表明：中学生PTSD症状有显著的性别差异,女生高于男生;震前生活事件、创伤程度的各维度与PTSD症状反应总分相关显著;学习压力、暴露和丧失程度均对再体验有显著的正向影响;学习压力、受惩罚、其他、暴露和丧失程度对逃避及麻木有显著影响;学习压力、其他、暴露和丧失程度对过度觉醒有显著的正向影响;震前生活事件对PTSD症状反应有重要的影响     

不同反应重复量对反应抑制后效应的影响*

研究不同反应重复量对反应抑制后效应的影响。采用停止信号范式,让被试完成不同反应重复量的反应抑制任务。结果显示,总的来说反应重复量因素和重复类型因素的主效应都显著;信号抑制条件下重复一次后比重复三次后无信号试次反应时要显著地长,但都与总的无信号试次反应时没有显著差异;信号反应条件下重复三次后与重复一次后无信号试次反应时没有显著差异,但都比总的无信号试次反应时显著地长。结果表明,不同反应重复量反应抑制后效应在信号抑制条件下既有认知控制调整也有自动化记忆提取,在信号反应条件下仅存在认知控制的执行加工。     

不同刺激重复量对反应抑制后效应的影响

旨在探讨不同刺激重复量对反应抑制后效应的影响。在不同刺激重复量条件下,让被试完成停止信号任务。结果发现,从总体来看,刺激重复量因素上的主效应显著,重复类型因素上主效应不显著;信号抑制条件下不同刺激重复量后无信号试次反应时与总的无信号试次反应时差异不显著;信号反应条件下不同刺激重复量后无信号试次反应时与总的无信号试次反应时差异显著。本研究表明不同刺激重复量条件下的反应抑制后效应是认知控制的执行加工而非自动化的记忆提取。     

双任务协调、任务呈现方式影响成人算术策略执行:估算证据

前人研究显示中央执行影响算术策略的执行。双任务协调作为中央执行的执行功能之一,是否会影响个体的策略执行?采用选择\无选法与改进的心理不应期范式,探讨随机/固定呈现方式下,双任务协调对算术策略执行的影响。结果表明:双任务协调影响策略执行,双反应策略执行效能显著差于单反应;任务呈现方式影响策略执行,固定方式优于随机方式;任务呈现序列影响策略执行反应时,数字先呈现的估算策略执行效能显著差于图形先呈现。总之,双任务协调、任务呈现方式影响算术策略执行,固定方式引起更明显的双任务协调代价。     

挫折情境下自我肯定对执行功能的影响

为探讨挫折情境下自我肯定对执行功能的影响,创设挫折和非挫折情境,采用价值观自我肯定干预,通过Stroop范式和2-back范式分别测量抑制控制和工作记忆的刷新能力。结果发现,挫折情境下的Stroop任务和2-back任务反应时均高于非挫折情境;挫折情境下自我肯定组在Stroop任务和2-back任务上的反应时均显著低于非自我肯定组,而非挫折情境下两组的反应时没有显著性差异;Stroop效应量在情境与肯定条件上的交互作用不显著。结果表明挫折降低了执行功能的任务表现,自我肯定干预能够改善挫折情境下执行功能相关的任务成绩,促进了个体对工作记忆任务的刷新能力和Stroop任务的认知表现,但对抑制控制能力的改善没有明显作用。     

准备时间和预先信息对任务切换的影响

两个实验采用任务线索范式,考察了准备时间和预先信息对任务切换的影响。实验1的准备时间为可预测,实验2的为不可预测,以考察准备时间的可预测性对任务切换的影响。以被试执行重复任务、切到任务和切离任务的正确反应时为主要指标,结果：（1）在准备时间可预测和不可预测两种条件下,准备时间和预先信息之间存在显著交互作用。在可预测条件中,重复和切到任务的反应时随着准备时间的增加而减少,但切到代价无显著变化,切离任务的反应时不受准备时间的影响,切离代价表现出反准备效应;不可预测条件下,三种任务的反应时都随着准备时间的增加而减少,但是切到和切离代价表现出反准备效应;（2）切离任务的反应时和代价显著高于切到任务的反应时和代价;（3）在这两种条件下,都没有出现切换代价的准备效应     

中国军人心理健康状况的元分析

研究的目的在于深入探讨军人的心理健康状态。通过文献查阅收集了77篇用SCL-90作为测评工具的关于军人心理健康状况的研究,样本量为56164人,根据被试情况把这些研究分为两组,一组为军事应激条件下的军人,另一组为非军事应激条件下的军人,分别对两组研究进行了元分析。研究发现非军事应激条件下军人的心理健康水平与军人常模差不多;军事应激条件下军人的心理健康水平在应激前高于军人常模,应激中低于军人常模,应激后与军人常模差不多。其中城镇驻军的心理健康水平高于高原驻军,高于边防驻军;应激中的心理健康水平低于应激后,低于应激前;地域、人员类别以及应激水平等因素对军人SCL-90得分有显著影响。敏感性分析和发表偏倚显示本研究的稳定性较好,没有发表偏倚。表明中国军人的心理健康状况并非很差;与金华等的地方成人常模和蔡心培的国家军用标准相比,王焕林19662人的军人常模更适合于做军人的比较标准;地域、人员类别以及应激水平等因素对SCL-90得分有显著影响     

工作记忆中央执行功能的特异性和可分离性

采用3种中央执行功能,对中央执行功能的特异性和可分离性进行研究。选取青年和老年被试各31名。每位被试都要参加3种中央执行功能2个难度水平的任务和瑞文标准推理测验。结果发现：记忆刷新的年龄效应不能完全由液态智力的年龄差异来解释;虽然同种执行功能内不同难度任务的年龄效应类似,但不同执行功能的年龄效应不同,从大到小依次为记忆刷新、随机生成和选择性注意;控制液态智力的影响后,同种执行功能内不同难度任务间的相关仍然显著,而不同中央执行功能之间的相关不显著;另外,本实验条件下选择性注意与液态智力相关不显著,且不存在年老化现象。研究结果表明中央执行功能相对于液态智力具有一定的特异性,并且可以进一步分离为一些相互独立的子功能。     

军事决策与科学思维方法培养

一、高技术条件下军事决策的特点 在高技术条件下，军事决策存在着与以往不同的许多特点，主要表现在： 1．强时效性。在高技术条件下，军事对地区危机和各种事件的反应灵敏，作战的节奏和进程明显加快，决策所依据的条件和各种相关因素，敌我双方的态势，面临的机遇等等。     

视觉工作记忆内容对视觉搜索的影响

采用记忆任务与视觉搜索任务相结合的范式,以二维对称图形为材料,探讨视觉工作记忆内容对视觉搜索的影响。结果发现：（1）不同视觉工作记忆内容条件下的反应时存在显著差异,无效信息条件下的反应时显著长于有效信息条件下的反应时。（2）不同搜索序列条件下反应时差异显著,复杂序列条件下的反应时显著长于简单序列条件。结果表明,视觉工作记忆中的信息内容影响视觉搜索效率,其变化趋势不受序列大小的影响,结果支持偏向竞争模型。     

RETRACTED ARTICLE: Unexpected events disrupt visuomotor working memory and increase guessing

When an unexpected event, such as a car horn honking, occurs in daily life, it often disrupts our train of thought. In the lab, this effect was recently modeled with a task in which verbal working memory (WM) was disrupted by unexpected auditory events (Wessel et al. in Nature Communications, 7, 11195, 2016). Here we tested whether this effect extends to a different type of WM—namely, visuomotor. We found that unexpected auditory events similarly decremented visuomotor WM. Moreover, this effect persisted for many more trials than had previously been shown for verbal WM, and the effect occurred for two different types of unexpected auditory events. Furthermore, we found that unexpected events decremented WM by decreasing the quantity, but not necessarily the quality, of items stored. These results showed an impact of unexpected events on visuomotor WM that was statistically robust and endured across time. They also showed that the effect was based on an increase in guessing, consistent with a neuroscience-inspired theory that unexpected events “wipe out” WM by stopping the ongoing maintenance of the trace. This new task paradigm is an excellent vehicle for further explorations of distractibility.     

Children's attributions of intentions to an invisible agent

Children ages 3-9 years were informed that an invisible agent (Princess Alice) would help them play a forced-choice game by "telling them, somehow, when they chose the wrong box," whereas a matched control group of children were not given this supernatural prime. On 2 unexpected event trials, an experimenter triggered a simulated unexpected event (i.e., a light turning on/off; a picture falling), and children's behavioral response to these events (i.e., moving their hand to the opposite box) was coded. Results showed a significant Age GroupxExperimental Condition interaction; the only children to reliably alter their behavior in response to the unexpected events were the oldest children (M=7 years 4 months), who were primed with the invisible agent concept. For children's posttest verbal explanations, also, only these children saw the unexpected events as being referential and declarative (e.g., "Princess Alice did it because I chose the wrong box"). Together, these data suggest that children may not regularly begin to see communicative signs as embedded in unexpected events until they are around 7 years of age.     

When Is the Time to Hate? A Research Review on the Impact of Dramatic Events on Islamophobia and Islamophobic Hate Crimes in Europe

Social scientists have long been interested in the significance of unexpected, dramatic events for social change. However, when it comes to research on prejudice and hate crimes, the impact of sudden, dramatic events has been little considered. The purpose of this research review is to survey European data to elucidate the temporal links between unexpected events, prejudice, and hate crimes, and also to pinpoint some of the methodological problems faced by scholars studying the impact of unanticipated dramatic events on prejudice and hate crimes; the significance of unexpected events often leaves researchers without access to relevant baseline data. The studies of Islamophobia and Islamophobic hate crimes considered in the present article privilege a dynamic view of time: terrorist attacks instill a sense of uncertainty and risk and Islamophobia and hate crimes are to a large extent event-driven and reactive, and tend to flare up on the heels of dramatic events. The recent attention paid to the role of unexpected, dramatic events represents a new and very promising approach to the study of prejudice and hate crimes; with the earlier, essentially spatial research focus now complemented by a temporal focus, the chances increase of charting the underlying dynamics and causes of prejudice and hate crimes.     

How not to be seen: the contribution of similarity and selective ignoring to sustained inattentional blindness

When people attend to objects or events in a visual display, they often fail to notice an additional, unexpected, but fully visible object or event in the same display. This phenomenon is now known as inattentional blindness . We present a new approach to the study of sustained inattentional blindness for dynamic events in order to explore the roles of similarity, distinctiveness, and attentional set in the detection of unexpected objects. In Experiment 1, we found that the similarity of an unexpected object to other objects in the display influences attentional capture: The more similar an unexpected object is to the attended items, and the greater its difference from the ignored items, the more likely it is that people will notice it. Experiment 2 explored whether this effect of similarity is driven by selective ignoring of irrelevant items or by selective focusing on attended items. The results of Experiment 3 suggest that the distinctiveness of the unexpected object alone cannot entirely account for the similarity effects found in the first two experiments; when attending to black items or white items in a dynamic display, nearly 30% of observers failed to notice a bright red cross move across the display, even though it had a unique color, luminance, shape, and motion trajectory and was visible for 5 s. Together, the results suggest that inattentional blindness for ongoing dynamic events depends both on the similarity of the unexpected object to the other objects in the display and on the observer's attentional set.     

Spontaneous counterfactual thoughts and causal explanations

We report two Experiments to compare counterfactual thoughts about how an outcome could have been different and causal explanations about why the outcome occurred. Experiment 1 showed that people generate counterfactual thoughts more often about controllable than uncontrollable events, whereas they generate causal explanations more often about unexpected than expected events. Counterfactual thoughts focus on specific factors, whereas causal explanations focus on both general and specific factors. Experiment 2 showed that in their spontaneous counterfactual thoughts, people focus on normal events just as often as exceptional events, unlike in directed counterfactual thoughts. The findings are consistent with the suggestion that counterfactual thoughts tend to focus on how a specific unwanted outcome could have been prevented, whereas causal explanations tend to provide more general causal information that enables future understanding, prediction, and intervention in a wide range of situations.     

Attributional versus preattributional variables in self-esteem and depression: a comparison and test of learned helplessness theory

Predictions made according to the attributional reformulation of learned helplessness theory concerning the cognitive determinants of low self-esteem and depression were tested in two samples of undergraduates; real and hypothetical life events were used. As predicted, internal attributions for hypothetical success and failure were correlated with self-esteem, but there was an unexpected correlation with global attributions for negative outcomes. Two "preattributional" variables, consensus and consistency judgments, were also related to self-esteem and depression. In contrast to learned helplessness theory, a path analysis indicated that these variables were not attributionally mediated. Consensus judgment was as strong a predictor of depression as the number of recent distressing life events that subjects had experienced. Other evidence that links depression to perceived low consensus is described, and a possible etiological role for this variable is outlined.     

Cultivating autonomy

There exists in every person a desire to control events, to be master of the life that surrounds him, to engage the world autonomously. This article argues that this desire is peculiarly blind to the intrusion of the uncontrollable or unexpected in life, and, when religiously applied, derives from the character ofhubris.     

Memory of elapsed time and feeling of time discrepancy

In dating past events, one sometimes recalls inaccurate dates and tends to estimate recent events too remotely and remote events too recently (telescoping). On the other hand, even when one knows the exact dates of events, subjective time could be elastic and often different from objective time. This Feeling of Time Discrepancy between objective and subjective elapsed times was examined with two autobiographical events. Results showed that (1) subjects reported a discrepancy even if the exact dates of events were known and (2) the discrepancy for entrance into university was higher than that for graduation from high school, even when they happened at almost same time. The results are discussed in terms of "location" and "distance" theories, Kemp's 1999 associative model of dating, and Conway's 2000 self-memory system. Autobiographical memory may be organized in terms of present self-concept with our past fitted to the present self-concept. However, if autobiographical memory changes greatly, we cannot share autobiographical memory with other people. We may be adapted to the present life by making only a sense of the subjective elapsed time of each event change with the accurate time information of the autobiographical facts held.