Age-related differences in timing with breaks

Two groups of participants differing in age were compared on a time production task during which timing was temporarily interrupted. Produced intervals lengthened with increasing delay before the break occurrence, and the effect was more pronounced in older than in younger adults. A reaction time response to the signal beginning the break period was required also. Older participants responded more slowly to this signal, but they benefited to a greater extent from a lengthening of the time preceding its presentation. These results suggest that performance of older participants is affected by attention sharing and preparation involved in timing with breaks.     

Comparing individual therapies for personality disordered opioid dependent patients

Within a psychotherapy development research project, thirty male (50%) and female (50%) personality disordered outpatients receiving methadone maintenance were randomly assigned to receive one of two 6-month manual-guided individual psychotherapies, Dual Focus Schema Therapy (DFST) or 12 Step Facilitation Therapy (12FT). All participants met diagnostic criteria for at least one personality disorder with antisocial, borderline, avoidant, and dependent being the most common. There were no significant differences between the two therapies for retention, utilization, or reductions in psychiatric symptoms or psychosocial impairment. Both therapy conditions demonstrated significant reductions in various severity indicators. Participants demonstrated more rapid decreases in the frequency of their substance use over six months of DFST in comparison to 12FT. DFST also was associated with a stronger therapeutic alliance between therapists and participants. Contrary to predictions, 12FT demonstrated better reduction of dysphoric affect than did DFST. DFST shows initial promise as the first time-limited manual-guided psychotherapeutic approach for the full range of personality disorders encountered in substance abuse patients.     

Development of an abbreviated Social Phobia and Anxiety Inventory (SPAI) using item response theory: the SPAI-23

An abbreviated version of the Social Phobia and Anxiety Inventory (SPAI) was developed using methods based in nonparametric item response theory. Participants included a nonclinical sample of 1,482 undergraduates (52% female, mean age = 19.4 years) as well as a clinical sample of 105 individuals (56% female, mean age = 36.4 years) diagnosed with either generalized (73%) or specific social phobia (27%). Twenty-three of the 45 SPAI items demonstrated good discrimination along the social anxiety continuum. In addition, option characteristic curves (OCCs) indicated that the SPAI's 7-point scale may generate errors in ranking individuals. Thus, options were collapsed to improve item performance. No gender differences emerged between any of the items' OCCs, suggesting that items function similarly among men and women. The abbreviated version also correlated highly with the original 45-item SPAI and exhibited similar patterns of correlations with measures of social anxiety. The SPAI-23 has considerable practical benefits, including a screening of both social and agoraphobic anxiety as well as decreased assessment and scoring time.     

Perceptual learning for speech

Adult language users have an enormous amount of experience with speech in their native language. As a result, they have very well-developed processes for categorizing the sounds of speech that they hear. Despite this very high level of experience, recent research has shown that listeners are capable of redeveloping their speech categorization to bring it into alignment with new variation in their speech input. This reorganization of phonetic space is a type of perceptual learning, or recalibration, of speech processes. In this article, we review several recent lines of research on perceptual learning for speech.     

Mnemic neglect is not an artifact of expectancy: The moderating role of defensive pessimism

Research supporting the mnemic neglect model finds that people more easily recall positive than negative personality feedback, even when only asked to imagine that the feedback is real. The same bias is not found when people are asked to recall information about other people. Despite evidence that these findings reflect self‐enhancement motives, more research is needed to rule out the possibility that they instead simply reflect expectancies. Results supported the mnemic neglect model, and revealed that expectancies predicted recall only for a subgroup of participants who did not demonstrate the self–other recall bias characteristic of mnemic neglect: defensive pessimists, who are more likely than other people to process social information by comparing it to their expectancies. These findings suggest that mnemic neglect is not an artifact of expectancies, and is not driven by other self‐evaluation motives (such as self‐verification or self‐assessment). Copyright © 2009 John Wiley & Sons, Ltd.     

Reading habits for both words and numbers contribute to the SNARC effect

This study compared the spatial representation of numbers in three groups of adults: Canadians, who read both English words and Arabic numbers from left to right; Palestinians, who read Arabic words and Arabic-Indic numbers from right to left; and Israelis, who read Hebrew words from right to left but Arabic numbers from left to right. Canadians associated small numbers with left and large numbers with right space (the SNARC effect), Palestinians showed the reverse association, and Israelis had no reliable spatial association for numbers. These results suggest that reading habits for both words and numbers contribute to the spatial representation of numbers.     

Regions of the MPFC differentially tuned to social and nonsocial affective evaluation

The medial prefrontal cortex (MPFC) reliably activates in social cognition and reward tasks. This study locates distinct areas for each. Participants made evaluative (positive/negative) or social (person/not a person) judgments of pictured positive or negative people and objects in a slow event-related design. Activity in an anterior rostral region (arMPFC) was significantly greater for positive than for negative persons but did not show a valence effect for objects, and this was true regardless of the judgment task. This suggests that the arMPFC is tuned to social valence. Interestingly, however, no regions of the MPFC were found to be responsive to social information independently of valence. A region-of-interest analysis of the paraanterior cingulate cortex (pACC), previously implicated in reward processing, demonstrated sensitivity to the valence of all stimuli, whether persons or objects, across tasks. Affective evaluation may be a general function of the MPFC, with some regions being tuned to more specific domains of information (e.g., social) than are others.     

The sad truth about depressive realism

In one form of a contingency judgement task individuals must judge the relationship between an action and an outcome. There are reports that depressed individuals are more accurate than are nondepressed individuals in this task. In particular, nondepressed individuals are influenced by manipulations that affect the salience of the outcome, especially outcome probability. They overestimate a contingency if the probability of an outcome is high—the “outcome-density effect”. In contrast, depressed individuals display little or no outcome-density effect. This apparent knack for depressives not to be misled by outcome density in their contingency judgements has been termed “depressive realism”, and the absence of an outcome-density effect has led to the characterization of depressives as “sadder but wiser”. We present a critical summary of the depressive realism literature and provide a novel interpretation of the phenomenon. We suggest that depressive realism may be understood from a psychophysical analysis of contingency judgements.*