Keys and seats: Spatial response coding underlying the joint spatial compatibility effect

Spatial compatibility effects (SCEs) are typically observed when participants have to execute spatially defined responses to nonspatial stimulus features (e.g., the color red or green) that randomly appear to the left and the right. Whereas a spatial correspondence of stimulus and response features facilitates response execution, a noncorrespondence impairs task performance. Interestingly, the SCE is drastically reduced when a single participant responds to one stimulus feature (e.g., green) by operating only one response key (individual go/no-go task), whereas a full-blown SCE is observed when the task is distributed between two participants (joint go/no-go task). This joint SCE (a.k.a. the social Simon effect) has previously been explained by action/task co-representation, whereas alternative accounts ascribe joint SCEs to spatial components inherent in joint go/no-go tasks that allow participants to code their responses spatially. Although increasing evidence supports the idea that spatial rather than social aspects are responsible for joint SCEs emerging, it is still unclear to which component(s) the spatial coding refers to: the spatial orientation of response keys, the spatial orientation of responding agents, or both. By varying the spatial orientation of the responding agents (Exp. 1) and of the response keys (Exp. 2), independent of the spatial orientation of the stimuli, in the present study we found joint SCEs only when both the seating and the response key alignment matched the stimulus alignment. These results provide evidence that spatial response coding refers not only to the response key arrangement, but also to the—often neglected—spatial orientation of the responding agents.     

Mindfulness and trauma: implications for treatment

Mindfulness, originally a construct used in Eastern spiritual and philosophical traditions, has found new utility in psychotherapy practice. Mindfulness practice has been recently applied to treatments of several psychological and health related problems, and research is showing successful outcomes in psychological interventions incorporating mindfulness practices. Several schools of psychotherapy have theorized why mindfulness may be an effective intervention. One population which would theoretically be benefited by mindfulness practice in treatment consists of those individuals who have experienced traumatic events and are exhibiting post-traumatic stress disorder and/or related correlates of past trauma. The present paper gives a general review of the application of mindfulness to clinical psychology interventions. Additionally, we explain how mindfulness is applicable to our integrative behavioral approach to treating trauma and its sequelae. Specifically, this paper will (a) give a general overview of the conceptions and applications of mindfulness to psychology and psychotherapy and provide a brief account of the concepts origins in eastern traditions; (b) discuss the theoretical conceptualization of clinical problems that may relate to the long-term correlates of trauma; (c) describe how mindfulness, acceptance and the therapeutic relationship can address trauma symptoms and discuss a modified treatment approach for trauma survivors that incorporates mindfulness and acceptance practices into traditional exposure treatment.

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Work values among the unemployed: changes over time and some gender differences

Work involvement (psychological identification with work in general) has generally been considered as a stable, dispositional characteristic, although some studies of unemployment have contradicted this view. Using longitudinal data from a Swedish representative sample (n= 888), this study examines employment status change (e.g. from work to unemployment) and work values development in a 15-month time period. Furthermore, the relationship between employment status change and well-being is explored, with a special focus on the roles played by work values and gender differences. Results indicated that work values are fairly stable over 15 months. As expected, the long-term unemployed (mostly active job seekers) had higher measures of work involvement after 15 months. Further, no gender difference was found with regard to work involvement but females were more likely to agree that there is an entitlement to work. Becoming unemployed was associated with negative health effects, but only among unemployed men.     

The role of item-specific information for the serial position curve in free recall

The serial position curve in free recall of a list of action phrases differs depending on whether the phrases were memorized by listening/reading (verbal task; VT) or by additionally enacting the denoted actions (subject-performed task; SPT). In VTs there is a clear primacy effect and a short recency effect. In SPTs there is no primacy effect but an extended recency effect. H. D. Zimmer, T. Helstrup, and J. Engelkamp (2000) assumed that SPTs provide excellent item-specific information, which leads to an automatic pop-out of the items presented last. In the present study, the authors assumed that good item-specific encoding generally enhances the recency effect and that it hinders rehearsal processes and thereby reduces the primacy effect. This assumption was confirmed. An item-specific orienting task leads to parallel serial position curves in VTs and SPTs with no primacy effect but a clear recency effect. Moreover, the same serial position effects were shown with nouns as learning material. An item-specific orienting task changes the classical U-shaped serial position curve with verbal material and leads to the disappearance of the primacy and the enhancement of the recency effect.     

Reactions to social and non‐social novelties in 2‐year‐olds

The purpose of this study is to investigate the internal structure of behavioural inhibition [cf. Goldsmith, H.H. and Campos, J.J. (1990). Child Development, 61 , 1944–1964]. Observations of 45 2‐year‐olds’ approaching/positive reactions, inhibited/negative reactions, and latencies, when encountering strangers as well as unfamiliar objects, are made in a laboratory setting. The intercorrelations between the six different measures, obtained from the observations, are analysed by means of a multitrait–multimethod matrix. It is concluded, from inspection of the matrix, that aggregations of data into indexes covering different reactions (approaching/positive reactions, inhibited/negative reactions, and latency) and settings (stranger and objects), respectively, are appropriate. To further validate the different indexes, assessments of concurrent variables (separation reactions, reactions to physical intrusion, reactions in a new setting, and maternal ratings of reactions to strangers) are used. The results indicate that all reactions to both social and non‐social novelties can be assigned to one construct, which is in line with the assumption made by Kagan and his co‐workers about behavioural inhibition. Copyright © 1999 John Wiley & Sons, Ltd.     

Interactions between mothers and infants showing food refusal

This study examined the interactional patterns of mothers and their infants who showed food refusal (N = 24) and of mothers and infants in a control group (N = 24) during feeding and play. The observations revealed significant group differences in both infant and maternal behavior. Infants in the case group rejected food more often and showed less clear communication signals than control infants, and mothers of case infants were less sensitive, less cooperative, and had more verbal teaching/control behavior than the control group. These differences pertained to both feeding and play situations. The findings have implications for the development of appropriate and efficient intervention strategies for infants showing food refusal.     

Auditory distractor processing in sequential selection tasks

In this review, we analyze the cognitive processes contributing to selection in audition. In particular, we focus on the processing of auditory distractors in sequential selection paradigms in which target stimuli are accompanied by distractors. We review the evidence from two established tasks, namely the auditory negative priming and the auditory distractor–response binding task, and discuss the cognitive mechanisms contributing to the results typically observed in these tasks. In fact, several processes have been suggested as to explain how distractors are processed and handled in audition; that is, auditory distractors can be inhibited, encoded with a do-not-respond-tag, integrated into a stimulus–response episode containing the response to the target, or upheld in working memory and matched/mismatched with the following distractor. In addition, variables possibly modulating these cognitive processes are discussed. Finally, auditory distractor processing is compared with distractor processing in vision.