Interlateral asymmetry in the time course of the effect of a peripheral prime stimulus

Evidence exists that both right and left hemisphere attentional mechanisms are mobilized when attention is directed to the right visual hemifield and only right hemisphere attentional mechanisms are mobilized when attention is directed to the left visual hemifield. This arrangement might lead to a rightward bias of automatic attention. The hypothesis was investigated by testing male volunteers, wherein a "location discrimination" reaction time task (Experiments 1 and 3) and a "location and shape discrimination" reaction time task (Experiments 2 and 4) were used. Unilateral (Experiments 1 and 2) and unilateral or bilateral (Experiments 3 and 4) peripheral visual prime stimuli were used to control attention. Reaction time to a small visual target stimulus in the same location or in the horizontally opposite location was evaluated. Stimulus onset asynchronies (SOAs) were 34, 50, 67, 83 and 100 ms. An important prime stimulus attentional effect was observed as early as 50 ms in the four experiments. In Experiments 2, 3 and 4, this effect was larger when the prime stimulus occurred in the right hemifield than when it occurred in the left hemifield for SOA 100 ms. In Experiment 4, when the prime stimulus occurred simultaneously in both hemifields, reaction time was faster for the right hemifield and for SOA 100 ms. These results indicate that automatic attention tends to favor the right side of space, particularly when identification of the target stimulus shape is required.     

The Milwaukee Inventory for Subtypes of Trichotillomania-Adult Version (MIST-A): Development of an Instrument for the Assessment of “Focused” and “Automatic” Hair Pulling

This article describes the development of the Milwaukee Inventory for Subtypes of Trichotillomania-Adult Version (MIST-A), which was designed to assess “automatic” and “focused” pulling subtypes of trichotillomania (TTM). Participants reporting symptoms of TTM (n = 1,697) completed an internet survey; participants were later randomly assigned to either Exploratory (n = 848) or Confirmatory (n = 849) Analyses. Exploratory Analyses examined the development and psychometric properties of the MIST-A. Results of an exploratory factor analysis revealed a two-factor solution. Factor 1 (“focused” pulling scale) and 2 (“automatic” pulling scale) consisted of ten and five items respectively, with both scales demonstrating adequate internal consistency and good construct and discriminant validity. Subsequent confirmatory factor analysis demonstrated support for the scale’s underlying factor structure. The MIST-A provides researchers with a reliable and valid assessment of “automatic” and “focused” pulling, although replication using a clinically ascertained sample is necessary.

Understanding and using the implicit association test: V. measuring semantic aspects of trait self‐concepts

Implicit Association Tests (IATs) often reveal strong associations of self with positive rather than negative attributes. This poses a problem in using the IAT to measure associations involving traits with either positive or negative evaluative content. In two studies, we employed non‐bipolar but evaluatively balanced Big Five traits as attribute contrasts and explored correlations of IATs with positive (e.g. sociable vs. conscientious) or negative (e.g. reserved vs. chaotic) attributes. Results showed (a) satisfactory internal consistencies for all IATs, (b) explicit–explicit and implicit–implicit correlations that were moderate to high and comparable in strength after both were corrected for attenuation and (c) better model fit for latent variable models that linked the implicit and explicit measures to distinct latent factors rather to the same factor. Together, the results suggest that IATs can validly assess the semantic aspect of trait self‐concepts and that implicit and explicit self‐representations are, although correlated, also distinct constructs. Copyright © 2008 John Wiley & Sons, Ltd.     

Freeze or flee? Negative stimuli elicit selective responding

Humans preferentially attend to negative stimuli. A consequence of this automatic vigilance for negative valence is that negative words elicit slower responses than neutral or positive words on a host of cognitive tasks. Some researchers have speculated that negative stimuli elicit a general suppression of motor activity, akin to the freezing response exhibited by animals under threat. Alternatively, we suggest that negative stimuli only elicit slowed responding on tasks for which stimulus valence is irrelevant for responding. To discriminate between these motor suppression and response-relevance hypotheses, we elicited both lexical decisions and valence judgments of negative words and positive words. Relative to positive words (e.g., kitten), negative words (e.g., spider) elicited slower lexical decisions but faster valence judgments. Results therefore indicate that negative stimuli do not cause a generalized motor suppression. Rather, negative stimuli elicit selective responding, with faster responses on tasks for which stimulus valence is response-relevant.     

Virtual prejudice

According to recent theorizing in social psychology, social behavior is controlled not only by reflective, but also by impulsive systems. The latter are based on associative links that may influence behavior without intent. The current study examined how prejudiced implicit associations affect physiological and automatic behavioral responses. Our native Dutch participants were immersed in a virtual environment in which they encountered virtual persons (avatars) with either White or Moroccan facial features. In line with our predictions, participants maintained more distance and showed an increase in skin conductance level when approaching Moroccan avatars as opposed to White avatars. Participants’ implicit negative associations with Moroccans moderated both effects. Moreover, evidence was found that the relation between implicit prejudice and distance effects was fully mediated by skin conductance level effects. These data demonstrate how prejudiced implicit associations may unintentionally lead to impulsive discriminatory responses.     

A comparison of two methods of assessing representation-mediated food aversions based on shock or illness

In experiments that measured food consumption, Holland (1981; Learning and Motivation, 12, 1-18) found that food aversions were formed when an exteroceptive associate of food was paired with illness, but not when such an associate was paired with shock. By contrast, measuring the ability of food to reinforce instrumental responding, Ward-Robinson and Hall (1999; Quarterly Journal of Experimental Psychology, 52B, 335-350) found that pairing an associatively activated representation of food with shock readily established an aversion to that food. Two experiments considered the origins of these apparently discrepant results. The results did not support either the possibility that instrumental reinforcement power is a more sensitive measure of aversion learning than consumption, or the hypothesis that illness particularly devalues properties of food representations that determine consumption (such as palatability) whereas shock devalues more general properties critical to reinforcement. The results suggested instead that whereas the effects of pairings of a food associate with illness are mediated by changes in the value of the food itself, the effects of pairings with shock are mediated by the conditioning of fear or other competing responses to the site of food delivery, and not by modification of the value of food itself.     

Influence des caractéristiques affectives et sémantiques des exemplaires d’un IAT Jeunes-Vieux sur les mesures d’attitudes résultantes

The IAT is supposed to be a method of indirect measure of the associative strengths between two target concepts (e.g., Young people versus Old) and two attribute concepts (e.g., Good versus Bad). But the stimuli used to represent these concepts can have an influence on IAT effects. We systematically manipulated the affective and semantic features of the stimuli used in a Young-Old IAT. The appearance of target exemplars (photos) and attribute exemplars (words) were perfectly differentiated. Three hundred and twenty subjects participated in the experiment and the results show that IAT effects are both influenced by the stimuli used and by the associative strengths between concepts. Practical and theoretical implications are discussed.     

几种策略选择模型的发展轨迹与比较

策略选择作为儿童认知发展的重要方面,日益受到人们的关注.20世纪70年代后,一些研究者相继构建出几种策略选择的理论模型,以说明儿童策略选择的过程及其机制.文章根据策略模型发展的历程,对元认知模型、联结分布模型、适应性策略选择模型和策略选择与发现模型进行了概述与比较,以摸清策略模型发展的轨迹与特点,由此进一步明确策略模型研究发展的方向.     

The Relations of Cognitive Triad, Dysfunctional Attitudes, Automatic Thoughts, and Irrational Beliefs with Test Anxiety

Previous research has highlighted the important role of cognition in anxiety, including test anxiety. The present study explores the role of cognitive distortions and irrationality in test anxiety by studying the relationships among cognitive triad (core beliefs), dysfunctional attitudes (intermediate beliefs), negative automatic thoughts, irrational beliefs, debilitating test anxiety, and facilitating test anxiety in 138 undergraduates. Multiple regression analyses showed that only the cognitive triad as a whole was a significant predictor of debilitating anxiety. Specifically, negative view of self was a significant predictor of debilitating anxiety. The results supported an expansion of the current cognitive conceptualizations of test anxiety to include the importance of negative self-view. Other implications are also discussed.     

A consequence of school grade labels: preservice teachers’ interpretations and recall of children’s classroom behavior

This study investigated whether preservice teachers’ attitudes surrounding school grade labels influenced interpretations and recall of children’s classroom behavior using the automatic attitude activation model (Fazio, In R. M. Sorrentino & E. T. Higgins (Eds.), Handbook of motivation and cognition: Foundations of social behavior, 1986) as a theoretical framework. Participants were randomly assigned to one of three conditions: The expectation of viewing a video of children in schools labeled as “A,” “F,” or “typical” as a result of the school’s aggregated student performance on standardized tests. Results indicated that participants who believed that they were viewing a video of an “F” classroom recalled more negative and fewer positive behaviors compared to the “typical” classroom. Likewise, there was a trend for participants to recall more negative and fewer positive behaviors when viewing a video of an “F” compared to an “A” school. Therefore, negative attitudes about a school label of “F” biased preservice teachers’ perceptions and memories of children’s classroom behaviors.