Is episodic memory performance more vulnerable to depressive affect in older adulthood?

This study examined how age, depressive symptoms, demographic variables, frailty, and health factors jointly influence episodic memory across the lifespan in two large, diverse samples. Hierarchical regression analyses from both samples showed that depressive symptoms negatively impacted episodic memory performance with the effect being more pronounced for older adults. Health and frailty tended not to be associated with episodic memory. However, the main effect of depressive symptoms tended to remain significant over and above other predictors, while the interaction with age was weakened with the addition of demographic variables. The unique contribution of this study is demonstrating that the relationship between depressive symptoms and episodic memory is moderated by age across relatively large non-clinical lifespan samples of adults. The findings indicate the importance of measuring and studying depressive symptoms during the course of aging in order to better understand the complex relationship between age, affect, physical functioning, and memory.     

Reconciling symbolic and dynamic aspects of language: Toward a dynamic psycholinguistics

The present paper examines natural language as a dynamical system. The oft-expressed view of language as “a static system of symbols” is here seen as an element of a larger system that embraces the mutuality of symbols and dynamics. Following along the lines of the theoretical biologist H.H. Pattee, the relation between symbolic and dynamic aspects of language is expressed within a more general framework that deals with the role of information in biological systems. In this framework, symbols are seen as information-bearing entities that emerge under pressures of communicative needs and that serve as concrete constraints on development and communication. In an attempt to identify relevant dynamic aspects of such a system, one has to take into account events that happen on different time scales: evolutionary language change (i.e., a diachronic aspect), processes of communication (language use) and language acquisition. Acknowledging the role of dynamic processes in shaping and sustaining the structures of natural language calls for a change in methodology. In particular, a purely synchronic analysis of a system of symbols as “meaning-containing entities” is not sufficient to obtain answers to certain recurring problems in linguistics and the philosophy of language. A more encompassing research framework may be the one designed specifically for studying informationally based coupled dynamical systems (coordination dynamics) in which processes of self-organization take place over different time scales.     

Middle Response Functioning in Likert-responses to Personality Items

Two studies examined whether the middle response option in graphic rating scales indicates a moderate standing on a trait/item, or rather a “dumping ground” for unsure or non-applicable (N/A) responses. Study One identified middle response-option dysfunction. Study Two indicated that respondents use the middle response option as an N/A proxy, even under implicit ‘skip if you do not know’ instructional sets. Although middle response category ‘misuse’ did not adversely affect reliability and validity in these studies, it is recommended that assessment developers (especially in on-line administration contexts) regularly include an N/A response option when administering graphic rating scales.

A thematic analysis of attributions to others for the origins and ongoing nature of pain in community pain sufferers

Research suggests that pain sufferers can attribute their pain to others. However, this work is scarce, lacking in detail and does not focus on any particular time during the pain experience. To understand how these attributions operate in pain, this study sought to examine as an exclusive focus the types, context of, and rationale for attributions made to others for the origins and ongoing nature of pain. A community pain sample was voluntarily recruited into the study to gain a comprehensive understanding of these attributions and minimise potential group-specific bias. Sixty-two participants were interviewed using semi-structured questions about cause, responsibility and blame for pain. Data were analysed using a thematic analysis. Attributions to others emerged across interview questions. Acquaintances, professionals and strangers were implicated in pain onset for reasons including negligence, accident and attack. Few additional attributions were made for pain now. Those made were mostly to medical professionals for perceived poor treatment of an original pain condition encompassing issues related to compliance, diagnosis and treatment and searching for alternative pain solutions. This research provides insight into the social context in which pain attributions to others are reported, and provides the basis for research into largely untapped areas including the implications particular attributions have for adjustment to pain and relationships with others.     

An R package to compute commonality coefficients in the multiple regression case: An introduction to the package and a practical example

Multiple regression is a widely used technique for data analysis in social and behavioral research. The complexity of interpreting such results increases when correlated predictor variables are involved. Commonality analysis provides a method of determining the variance accounted for by respective predictor variables and is especially useful in the presence of correlated predictors. However, computing commonality coefficients is laborious. To make commonality analysis accessible to more researchers, a program was developed to automate the calculation of unique and common elements in commonality analysis, using the statistical package R. The program is described, and a heuristic example using data from the Holzinger and Swineford (1939) study, readily available in the MBESS R package, is presented.     

Can a Lineup Procedure Designed for Child Witnesses Work for Adults? Comparing Simultaneous,Sequential, and Elimination Lineup Procedures

A study (N = 165) was conducted to examine whether the elimination lineup, an identification procedure developed for children to reduce their false‐positive responding, was effective for adult witnesses. Although the sequential lineup is available to help reduce adults’ false‐positive identifications, having different procedures for child and adult witnesses poses difficulty for the police and justice system. One procedure for all witnesses would be ideal. Simultaneous, sequential, and elimination procedures were compared. The elimination procedure produced a comparable correct rejection rate to the sequential procedure. Both the elimination and sequential procedure produced a higher correct rejection rate than did the simultaneous procedure. Correct identification rates were comparable across the 3 lineup procedures.     

Similarity attraction and actually selecting similar others: How cross-societal differences in relational mobility affect interpersonal similarity in Japan and the USA

Several studies have demonstrated that similarity between friendship partners is higher in the West than in East Asian countries. We hypothesized that these differences could be explained by relational mobility, or the number of opportunities to form new relationships in a given society. Through two studies, we confirmed that whereas the preference for similarity did not differ, similarity between friendship partners was higher in the USA than in Japan. Furthermore, a measure of relational mobility mediated the cultural difference in similarity, supporting our hypothesis. The effectiveness of considering socio-ecological factors when interpreting cultural differences in behaviour is discussed.     

Increasing correct identifications by children

Four new lineup procedures were examined with the goal of increasingchildren's identification accuracy. Participants (329 children aged 10 and11 years, 426 children aged 12 to 14 years, and 265 adults) were presentedwith either a target-present or target-absent lineup. Proceduralmodifications included providing a salient "I don't know" response option,extending standard instructions, and modeling correct responses eitherusing an identification demonstration video or a handout. These conditionswere compared to a standard (control) lineup procedure. Extendingstandard instructions increased correct identifications by the youngerchildren. Presenting a salient "I don't know" response increased overallchoosing for both target-present and target-absent lineups. Experimentalprocedures did not influence correct rejection rates. These data demonstratea variety of techniques that may be useful for improving the identificationaccuracy of child witnesses. Future directions are discussed.     

Guilt and self-concept in ‘secondary psychopaths’

Thirty-two male and 25 female ‘secondary psychopaths’ and 24 male and 24 female ‘normal’ subjects filled in semantic differential scales relating to the concepts: Myself as I am, Myself when I lie, Myself if I were to steal, Myself as I would like to be, People who lie and People who steal. The Mosher Morality-Conscience Guilt scale and the Eysenck Personality Inventories were also administered. The psychopaths exhibited significantly higher Guilt scores than the normal subjects and had very poor self-image which was reflected in a constant feeling of guilt, regardless of whether or not they were rating transgression. Normal subjects, on the other hand, only rated themselves as feeling guilty when they violated acceptable norms. The findings suggest that guilt in ‘secondary psychopaths’ is partly related to their high level of trait anxiety and partly to their poor self-concept which may be a reflection of their disturbed family background and the constant disapproval that their behaviour creates. Since guilt in the psychopaths did not markedly increase with transgression it is argued that this may explain why guilt fails to inhibit unacceptable behaviour in some psychopaths.