认知负荷和项目竞争强度对大学生提取诱发遗忘的影响

采用提取练习范式与逐试次刷新任务相结合的双任务对96名大学生进行测试,通过考察认知负荷和项目竞争强度对提取诱发遗忘(RIF)的影响,以澄清RIF的产生机制。结果发现:相对于高、低认知负荷组大学生而言,控制组大学生在高项目竞争强度下诱发出显著的RIF,在低项目竞争强度下则未诱发出显著的RIF。结果表明:控制组大学生在汉语类别-样例词对中产生的RIF是由需要认知资源的控制性抑制加工产生的,这种RIF比拼音类别-样例词对中的RIF需要更多的认知资源,且未受相关代价与效益问题影响。     

The value(s) of information on social network sites: The role of user personality traits

PurposeThe present research examines the relationship between personality of social network site (SNS) users and the perceived value of the information they seek. Building on the Reasoned Action Approach, personality is conceptualized as a background factor influencing people's attitude towards the information they search for on SNS.Design/methodology/approachData were collected using a face-to-face survey among Facebook users (n = 311). Personality traits were assessed based on the Big Five dimensions. Statistical analyses estimate the effects of personality traits on the various values of the information sought on SNS. A three-step procedure was followed to standardize the independent variables and create interaction variables for the moderation test.FindingsThe results support the predictions that certain personality traits (e.g., conscientiousness and extraversion), as described by the FFM framework, are related to particular facets of information value (economic value and social value respectively). The effect of personality was moderated by participants’ Facebook usage intensity. Usage intensity dampens the relationship between agreeableness and functional value of information, and strengthens the negative relationship between openness-to-experience and psychological value of information.Practical implicationsThe personality-information value relationships found can help social media practitioners and marketers shape the content and appeal of the messages communicated to their audience on SNS, and tailor marketer-customer interactions in an engaging way.Originality/valueThe present research contributes to understanding the pivotal role of personality in evaluating the information people seek on social networks. It also adds to the literature regarding FFM and social media usage by supporting the notion that the Big Five personality traits predict value aspects of information that people pursue in the course of search behavior on Facebook.Article classificationResearch paper.     

Learning Facts About Migration: Politically Motivated Learning of Polarizing Information About Refugees

Information processing during heated debates on asylum and immigration may often be influenced by prejudice rather than a desire to learn facts. In this article, we investigate how people process empirical evidence on the consequences of refugee arrivals through a novel survey experiment that disentangles politically motivated learning from other forms of learning and expressive responding. Specifically, we ask respondents to interpret a 2×2 table about the relationship between asylum seekers and crime rates. Crucially, respondents are randomly allocated to evaluate a conclusion that triggers their identity-protective stakes or not. In addition, we test for motivated responding as an alternative explanation by randomly providing some respondents with a response format that motivates them to report their inference truthfully. We find that information processing changes substantially when new information challenges existing asylum attitudes. Politically motivated learning is strongest among voters with strong negative prior attitudes towards asylum seekers. Our results also indicate that expressive responding can only partially account for this gap in correctly reported inferences. Our research has important implications for research on the consequences of refugee migration, theories of motivated reasoning, and survey methodology.     

不同回避动机强度的消极情绪对类比推理的影响:来自ERP的证据

研究采用类比推理的四项比例式任务和事件相关电位技术,探究不同回避动机强度的消极情绪(恐惧—高动机强度、悲伤—低动机强度、中性情绪)对类比推理的影响及脑机制。结果发现:(1)行为:不同回避动机强度的消极情绪均会延长类比推理的反应时; 与中性情绪相比,悲伤会提高推理的正确率,而恐惧会降低推理的正确率。(2)脑电:图式提取阶段,N400、P300、LNC被诱发; 类比映射阶段,N400和LNC被诱发,情绪在N400和LNC上的主效应均显著,恐惧情绪下的N400和LNC幅值比悲伤情绪和中性情绪下的更大。研究表明,情绪对类比推理的作用发生在类比映射阶段。恐惧情绪窄化认知,悲伤情绪扩展认知,支持情绪动机维度模型。     

Finding happiness in negative emotions: An experimental test of a novel expressive writing paradigm

Positive emotions are evoked on seeing one's favorite person. To investigate the psychological and physiological responses accompanying these positive emotions, we simultaneously recorded various parameters such as the mood state, heart rate, skin conductance level (SCL), serum levels of catecholamines, and proportions of T cells and natural killer (NK) cells among the lymphocytes while participants viewed films featuring their favorite persons. The participants reported that they felt better and invigorated; in addition, SCL and proportion of NK cells in peripheral blood increased significantly, and these physiological changes were positively correlated. These results suggest that positive emotions elicited on seeing a favorite person may lead to psychological and physiological activation and, more importantly, may promote health.

A cheerful heart is good medicine, but a crushed spirit dries up the bone (Proverbs 17 : 22; New International Version)     

Ipsilateral Loudness Adaptation Over Multiple Intensity Levels

Three mirror tracing experiments were conducted to investigate the connection between perception and motor behavior. In the first experiment, some subjects traced a hex-maze, other subjects traced a hex-maze after observing a model trace, others traced a hex-maze after reading instructions on mirror images, and others traced a hex-maze after having observed a model and heard the instructions. There were no significant differences between the groups' error scores, but their time scores differed significantly, although not always in the predicted direction. In Experiment 2, the subjects were to trace selected letters of the alphabet. Error scores for the second experiment did not differ much from those for the first experiment. In Experiment 3, the experimenter gave each subject commands for the correct directions of movement, using the subject's body as a frame of reference. There was little improvement in motor performance. These results suggest that the visual information presented in the mirror captured the subjects' attention and blocked their motor tracing program.     

Intensity of positive and negative emotions: Explaining the association between personality and depressive symptoms

The aim was to examine to what extent emotional intensity accounted for associations between the Big Five personality dimensions and depressive symptoms. Study 1 tested the model cross-sectionally, using survey data of 266 Dutch social science students. Study 2 experimentally examined how personality dimensions were related to emotional reactivity after exposure to various emotional stimuli. Dutch psychology students (N = 130) reported on their personality and viewed an amusing or sad film clip, after which the change in intensity of experienced positive and negative emotions was assessed. Individuals scoring higher on neuroticism generally experienced more intense negative emotions, through which they experienced a higher level of depressive symptoms. Individuals who were more agreeable experienced a lower level of depressive symptoms indirectly through higher general intensity of positive emotions. More agreeable individuals showed stronger increase in negative emotions and stronger decrease in positive emotions, though after exposure to the sad stimulus only. Although replication is needed, our results offer empirical support for a more taylor-made approach in decreasing nonclinical depressive symptoms taking into account both personality characteristics and emotion regulation.     

Indirect scaling methods for testing quantitative emotion theories

Two studies investigated the utility of indirect scaling methods, based on graded pair comparisons, for the testing of quantitative emotion theories. In Study 1, we measured the intensity of relief and disappointment caused by lottery outcomes, and in Study 2, the intensity of disgust evoked by pictures, using both direct intensity ratings and graded pair comparisons. The stimuli were systematically constructed to reflect variables expected to influence the intensity of the emotions according to theoretical models of relief/disappointment and disgust, respectively. Two probabilistic scaling methods were used to estimate scale values from the pair comparison judgements: Additive functional measurement (AFM) and maximum likelihood difference scaling (MLDS). The emotion models were fitted to the direct and indirect intensity measurements using nonlinear regression (Study 1) and analysis of variance (Study 2). Both studies found substantially improved fits of the emotion models for the indirectly determined emotion intensities, with their advantage being evident particularly at the level of individual participants. The results suggest that indirect scaling methods yield more precise measurements of emotion intensity than rating scales and thereby provide stronger tests of emotion theories in general and quantitative emotion theories in particular.     

目标性意图与执行性意图调节情绪反应的效果比较

目标性意图和执行性意图作为目标的不同形式,对情绪调节的影响有待探讨。本研究试图考察目标性意图和执行性意图与表达抑制相结合之后,在调节情绪反应方面的作用。实验采用主观报告和生物反馈的方法对58名大学生进行测试。结果发现：（1）执行性意图组被试在观看负性和中性图片时对自身情绪唤醒度的评价均显著低于目标性意图组,在观看负性图片时其情绪唤醒度也显著低于控制组。（2）执行性意图组被试在各项生理反应指标上均显著低于目标性意图组和控制组,主要表现为形成执行性意图的个体在皮肤电导增加量、皮温降低量和指脉增加量上均显著低于形成目标性意图或不形成任何意图的个体。上述结果表明,相较于仅仅给出情绪体验下调目标的目标性意图,与表达抑制结合在一起的执行性意图能有效下调个体的负性情绪反应。