The role of activation charge in an emotional categorisation task for words: insight from the perspective of a dual process theory of the activation mechanisms

The role of activation (arousal and subjective significance) was investigated for word processing in an explicit emotional judgement task using a 3?×?3 manipulation. We expected to find dissociative effects for both factors. The behavioural results showed that the fraction of words perceived as emotional increases with increasing arousal or subjective significance. The electrophysiological (EEG) results showed that both factors influence ERP amplitudes. General effects of subjective significance were found for early (60–120?ms and 120–250?ms, low subjective significant stimuli evoked higher amplitude than other conditions) and late (350–490?ms, high subjective significant stimuli evoked higher amplitude than other conditions) time ranges. Localised arousal effects were found in 250–350?ms and 350–490?ms time ranges at posterior (amplitude for high arousing stimuli was less positive than for other conditions) and left frontal ROIs (diverse pattern). Localised subjective significance effects were found for the 350–490?ms time range at the posterior ROIs (amplitude for high subjective significant stimuli was more positive than for other conditions). The results of this study suggest that the effects of arousal reported in earlier studies might account for a more complex form of activation that was recently postulated, namely subjective significance.     

Intended emotions influence intentional binding with emotional faces: Larger binding for intended negative emotions

The effect of emotions on Intentional binding (IB) is equivocal. In addition, most studies on IB have not manipulated emotional content of intentions. This study investigates the effect of intended and outcome emotions using emotional faces (happy or disgust face in experiment 1 and a happy or angry face in experiment 3). To see whether the effects are due to priming, we used instructions with a happy-disgust pair in experiment 2 and happy-angry pair in experiment 4. Outcome emotional faces were not predictable. Results showed that intending a negative emotional face resulted in shorter action-outcome interval judgments compared to a happy face irrespective of the emotional content of the outcome face. This effect was absent in experiments 2 and 4 with instructed emotions. In addition to showing the importance of having explicit intentions, the results show that emotional content of our intentions does influence IB possibly due to prospective mechanisms.     

On Variant Selection Mechanisms in Interactive MCDA – Engineering versus Reverse Engineering

In the paper, we focus on the engineering and the reverse engineering paradigms in the context of multiple criteria decision analysis. We argue and demonstrate that if variant selection mechanisms are reverse engineered, they are simple and intuitive to understand, making multiple criteria decision analysis marketable to operational research practitioners. We present a reverse engineering scheme for variant selection mechanisms, and we illustrate its working with instructive examples. We also present some experience with that scheme gathered when teaching a multiple criteria decision analysis course to students. Copyright © 2015 John Wiley & Sons, Ltd.     

外在奖赏对陈述性记忆的影响

学习和记忆是个体赖以生存和发展的前提,如何取得好的学习和记忆效果是心理学和神经科学关注的重点。近年来,许多研究揭示奖赏可以促进记忆效果,奖赏对记忆的影响逐渐成为心理学和神经科学的热点研究课题。大脑的中脑多巴胺奖赏系统与海马记忆系统在结构和功能上均有关联。奖赏通过编码和巩固阶段以不同机制对记忆效果产生作用：在记忆编码阶段,奖赏会激活奖赏系统、注意控制系统,将更多认知资源分配给奖赏相关信息,从而促进奖赏信息的记忆效果;在记忆巩固阶段,奖赏会促进多巴胺释放,作用于海马对奖赏相关信息的加工,从而促进奖赏信息的记忆效果。未来研究可以关注奖赏对行为影响的复杂模式和内在奖赏对学习记忆的影响等方面。     

催产素对产后抑郁症患者母性行为的调节作用

产后抑郁症是指女性分娩后一段时间内出现的严重抑郁发作现象。研究表明, 催产素不仅参与分娩过程和正常的母性行为表达, 也在调节产后抑郁的发病及患者的母性行为中起到了重要的作用。产后抑郁症患者的情绪和认知功能受损, 这可能导致了母性行为表达质量的下降; 催产素可以通过中脑边缘多巴胺系统来调控母性行为, 作用于内侧视前区(MPOA)来激活中脑腹侧被盖区(VTA)-伏隔核(NAc)环路从而影响伏隔核内多巴胺的分泌; 催产素对产后抑郁症中母性行为的调节机制可能是通过调节五羟色胺系统的功能来发挥抗焦虑作用, 也可能是通过与其它激素的交互作用来加速母性行为的表达。未来研究进一步明确催产素在中枢神经环路中的功能差异, 以及社会支持对产后抑郁症患者催产素的使用带来的影响。     

Using time‐lagged panel data analysis to study mechanisms of change in psychotherapy research: Methodological recommendations

The introduction of novel methodologies in the past decade has advanced research on mechanisms of change in observational studies. Time‐lagged panel models allow us to track session‐by‐session changes and focus on within‐patient associations between predictors and outcomes. This shift is crucial as change in mechanisms inherently takes place at a within‐patient level. These models also enable preliminary casual inferences, which can guide the development of effective personalised interventions that target mechanisms of change, used at specific treatment phases for optimal effect. Given their complexity, panel models need to be implemented with caution, as different modelling choices can significantly affect results and reduce replicability. We outline three central methodological recommendations for use of time‐lagged panel analysis to study mechanisms of change: (a) taking patient‐specific effects into account, separating out stable between‐person differences from within‐person fluctuations over time; (b) properly controlling for autoregressive effects; and (c) considering long‐term time trends. We demonstrate these recommendations in an applied example examining the session‐by‐session alliance–outcome association in a naturalistic psychotherapy study. We present limitations of time‐lagged panel analysis and future directions.     

防御机制的年龄、性别与文化差异

本研究考察了生命全程中防御机制使用的年龄、性别和文化差异。被试年龄范围为１０～８６岁,其中美国被试为１６８人（男８５人,女８３人）,中国大陆被试为１５６人（男７６人,女８０人）。本研究运用测验法对被试的防御机制进行测查,结果表明：不同文化背景下个体使用的防御机制有明显的差异,中国被试比美国被试更多地使用指向自我与理智化两种防御机制,更少使用指向他人与投射;同时防御机制的使用表现出显著的年龄特征,中老年被试比年轻被试较多使用反向而较少使用指向他人与投射;防御机制的使用还表现出显著的性别差异,女性比男性更多使用指向自我而更少使用反向。     

Psychotherapy: Definitions, Mechanisms of Action, and Relationship to Etiological Models

In this paper, we define psychotherapy as a modality of treatment in which the therapist and patient(s) work together to ameliorate psychopathologic conditions and functional impairment through focus on the therapeutic relationship; the patient's attitudes, thoughts, affect, and behavior; and social context and development. The possible mechanisms of action and active ingredients of psychotherapy in children and adolescents are discussed, with an emphasis on the above-noted domains. The adult psychotherapy literature strongly supports the central roles of the therapeutic relationship and therapeutic empathy; this has been much less intensively explored in the child and adolescent psychotherapy literature. Similarly, there have been few studies examining the mediation of treatment effects by impact on specific domains. Ideally, treatment studies should gather data that can be informative about the impact of putative mediating and moderating psychosocial and biological variables on outcome and course. The results of such studies can aid further refinements in both theories of etiology and improvement in treatments for children and adolescents.     

A processing model for the analysis of one-way arguments in discourse

This paper describes a computational model for analyzing arguments in discourse. In particular, the model describes processes necessary for interpreting one uninterrupted argument from a speaker. The resulting output is a representation for the underlying claim and evidence relations between propositions of the argument. For our processing model we present: (i) a characterization of coherent orderings of propositions, used to limit search for interpretation of each new proposition (ii) a working definition of the evidence relation, used to recognize connections between propositions (iii) a theory of the function and use of clue words — special words and phrases indicating the structure of the argument — then used in the analysis to control search for interpretation and verification of evidence relations.     

Clinical Change Mechanisms in the Treatment of College Students With ADHD: Trajectories and Associations With Outcomes

The purpose of this study was to evaluate trajectories of response for the three theorized mechanisms of clinical change (knowledge, behavioral strategies, and adaptive thinking) associated with the Accessing Campus Connections and Empowering Student Success (ACCESS) intervention for college students with attention-deficit/hyperactivity disorder (ADHD) and their association with treatment outcomes. Participants included 250 college students comprehensively diagnosed with ADHD randomly assigned to ACCESS or to a delayed-treatment control who completed ratings at baseline, end of active treatment, and end of the maintenance phase of treatment (after two semesters). Growth mixture models (GMMs) were used to evaluate trajectories. Participants in ACCESS made significant gains in the use of behavioral strategies and trajectories were associated with large effect size improvements in measures of symptoms and functioning. Participants also made improvements in ADHD knowledge. However, only the knowledge trajectory with rapid improvement displayed significantly better outcomes. Only one trajectory group showed improvement in adaptive thinking with most ACCESS participants remaining stable across time. However, adaptive thinking trajectories were strongly related to both symptom and functional outcomes. ACCESS is associated with large gains in two of the three theorized clinical mechanisms of change, behavioral strategies and ADHD knowledge. Rapid improvement in behavioral strategies was associated with robust improvement in symptoms and functioning. Although improvements in the third mechanism, adaptive thinking, were small, they were strongly associated with outcomes demonstrating the importance of a cognitive-behavioral approach in treating college students with ADHD.