Accuracy of retrospective memory and covariation estimation in patients with obsessive-compulsive disorder

Assessment methods relying on biased or inaccurate retrospective recall may distort knowledge about the nature of disorders and lead to faulty clinical inferences. Despite concerns about the accuracy of retrospective recall in general and in particular with obsessive–compulsive disorder (OCD) patients, the accuracy of retrospective recall for one's own symptoms assessed in vivo is unknown in this population. This study used a prospective ecological momentary assessment (EMA) methodology to create a criterion against which to assess recall accuracy in OCD patients. Although results indicated that patients’ retrospective recall of OCD symptoms was fairly accurate, they consistently overestimated the magnitude of OCD symptom covariation with non-OCD facets (e.g., sleep duration, contemporaneous stress level, etc.). Findings suggest that even when recall of OCD symptoms is accurate, patients may be inaccurate in estimating symptom covariation. The findings have implications for the research, case conceptualization, and assessment of OCD, and may extend to other disorders.     

Affective primes suppress attention bias to threat in socially anxious individuals

Anxious individuals show an attention bias towards threatening information. However, under conditions of sustained environmental threat this otherwise-present attention bias disappears. It remains unclear whether this suppression of attention bias can be caused by a transient activation of the fear system. In the present experiment, high socially anxious and low socially anxious individuals (HSA group, n=12; LSA group, n=12) performed a modified dot-probe task in which they were shown either a neutral or socially threatening prime word prior to each trial. EEG was collected and ERP components to the prime and faces displays were computed. HSA individuals showed an attention bias to threat after a neutral prime, but no attention bias after a threatening prime, demonstrating that suppression of attention bias can occur after a transient activation of the fear system. LSA individuals showed an opposite pattern: no evidence of a bias to threat with neutral primes but induction of an attention bias to threat following threatening primes. ERP results suggested differential processing of the prime and faces displays by HSA and LSA individuals. However, no group by prime interaction was found for any of ERP components.     

Inner speech slips exhibit lexical bias, but not the phonemic similarity effect

Inner speech, that little voice that people often hear inside their heads while thinking, is a form of mental imagery. The properties of inner speech errors can be used to investigate the nature of inner speech, just as overt slips are informative about overt speech production. Overt slips tend to create words (lexical bias) and involve similar exchanging phonemes (phonemic similarity effect). We examined these effects in inner and overt speech via a tongue-twister recitation task. While lexical bias was present in both inner and overt speech errors, the phonemic similarity effect was evident only for overt errors, producing a significant overtness by similarity interaction. We propose that inner speech is impoverished at lower (featural) levels, but robust at higher (phonemic) levels.     

Moral appraisals affect doing/allowing judgments

An extensive body of research suggests that the distinction between doing and allowing plays a critical role in shaping moral appraisals. Here, we report evidence from a pair of experiments suggesting that the converse is also true: moral appraisals affect doing/allowing judgments. Specifically, morally bad behavior is more likely to be construed as actively ‘doing’ than as passively ‘allowing’. This finding adds to a growing list of folk concepts influenced by moral appraisal, including causation and intentional action. We therefore suggest that the present finding favors the view that moral appraisal plays a pervasive role in shaping diverse cognitive representations across multiple domains.     

Danger stereotypes predict racially biased attentional allocation

The current research investigates whether threat-relevant associations have specific implications for attentional allocation, over and above the effects of other category-based associations. Using a modified dot-probe task [Koster, Crombez, Verscheuere, & DeHouwer (2004)], we separately measured attentional capture and attentional holding by Black compared to White faces. Black-danger associations significantly predicted the extent to which Black faces captured attention faster than White faces. Black-danger stereotypes also marginally predicted the extent to which Black faces held attention longer than White faces. These effects remained significant when controlling for the effects of other (danger-irrelevant) stereotypes and prejudice, and neither danger-irrelevant stereotypes nor prejudice predicted racially biased attentional allocation. We posit that societal stereotypes linking Blacks with danger lead Black faces to function as fear-conditioned stimuli, biasing attention.     

Reinforcer control by comparison-stimulus color and location in a delayed matching-to-sample task

Six pigeons were trained in a delayed matching-to-sample task involving bright- and dim-yellow samples on a central key, a five-peck response requirement to either sample, a constant 1.5-s delay, and the presentation of comparison stimuli composed of red on the left key and green on the right key or vice versa. Green-key responses were occasionally reinforced following the dimmer-yellow sample, and red-key responses were occasionally reinforced following the brighter-yellow sample. Reinforcer delivery was controlled such that the distribution of reinforcers across both comparison-stimulus color and comparison-stimulus location could be varied systematically and independently across conditions. Matching accuracy was high throughout. The ratio of left to right side-key responses increased as the ratio of left to right reinforcers increased, the ratio of red to green responses increased as the ratio of red to green reinforcers increased, and there was no interaction between these variables. However, side-key biases were more sensitive to the distribution of reinforcers across key location than were comparison-color biases to the distribution of reinforcers across key color. An extension of Davison and Tustin's (1978) model of DMTS performance fit the data well, but the results were also consistent with an alternative theory of conditional discrimination performance (Jones, 2003) that calls for a conceptually distinct quantitative model.     

语言的群体间偏差研究

个体在用语言来描述他人的行为时,会因为描述对象的群体种类不同而有偏差,具体表现为在描述群体内成员的积极行为和群体外成员的负向行为时,会使用较高抽象水平的词;在描述群体外成员的积极行为和群体内成员的负向行为时,会使用较低抽象水平的词。这种抽象水平的差异由语言范畴模型来具体表明。Maass等人把这种描述上的偏差命名为语言的群体间偏差。并认为在这一现象下有两种机制：动机机制和认知机制,研究表明认知机制能解释大部分语言的群体间偏差现象,而动机机制会在群体内形象受到威胁时发挥作用。     

Seeing is not enough: manipulating choice options causes focusing and preference change in multiattribute risky decision‐making

We show that preferences depend on the attributes that can be directly manipulated when people need to integrate multiple sources of information because direct manipulation causes focusing bias. This effect appears even when all relevant information is simultaneously and explicitly presented at the time the decisions are made. Participants decided how much to save, what investment risk to take and observed the future financial consequences in terms of the mean and variability of the expected retirement income. Participants who manipulated only the future income distribution saved more and took less risk. This effect disappears when the risk‐related variables are removed, which indicates that task complexity is a mediator of such focusing effects. A more balanced trade‐off between the choice attributes was selected when all attributes were manipulated. However, when there is a dichotomy between manipulating versus observing choice attributes, then decisions were based mostly on the manipulated attributes. Copyright © 2008 John Wiley & Sons, Ltd.     

“说出即相信”效应的影响因素和理论解释

在人际沟通中, 沟通者向听众态度方向调整关于目标人物的信息, 并且随后沟通者对目标人物的记忆和评价也会出现相应的偏差, 这就是“说出即相信”效应。“说出即相信”效应的影响因素包括沟通目的、反馈、沟通者与听众的关系、求知需求、沟通者的人格特征等。研究者用基本信息过程、认知失调理论、分享现实理论等来解释这一效应。未来的研究可以将这一效应推广到群体领域, 完善理论机制并开展更多的应用研究。     

负性偏向的神经机制

负性偏向是指负性信息比其他信息得到优先的注意和加工。在负性偏向中注意偏向既是一种自动化的过程也是一种受控制的过程, 杏仁核和眶额皮层在这过程中起着重要作用, 杏仁核调节早期的自动化注意偏向而眶额皮层则控制着自上而下的注意偏向; 负性记忆偏向不仅表现在负性信息得到更深的编码, 还表现在负性信息的再认标准降低。未来应开展负性偏向的皮层?皮层连接、基因、负性偏向的拓展以及负性偏向的干预研究。