Listening while talking: The retention of prose under articulatory suppression in relation to simultaneous interpreting

According to working memory theory (e.g., Baddeley & Logie, 1999) articulatory suppression (AS) prevents rehearsal in the articulatory loop of to be remembered material, which, in turn, has a disruptive effect on recall. Simultaneous interpreting is an activity where people routinely comprehend and maintain speech while articulating at the same time. We examined whether AS also affects retention when, as in interpreting, coherent text is to be remembered or meaningful and phonologically more complex material is articulated. In the first part of the study, participants listened to a set of stories, and were involved in traditional or complex AS. Also coherence of the texts was manipulated. We found that the effects of AS generalises to stories, that coherence influences recall and that both variables interact. In the second part, we related individual differences in retention under conditions of AS to simultaneous interpreting performance. The results are discussed in terms of the episodic buffer component (e.g., Baddeley, 2000).     

Impulsivity and Paced Tapping

The purpose of this study was to test the hypothesis that impulsivity is positively related to both the intraindividual variability and the rate of performance of a paced tapping task. Selected experimental conditions which have been demonstrated to influence paced tapping were included in the experimental design of the tapping task. The independent variables in the tapping task were: feedback vs. no feedback; tempo; concurrent cognitive task (counting) vs. no concurrent cognitive task. Three measures of tapping performance were computed: absolute or total error of tapping, tapping rate, and the intraindividual variability of tapping. The results confirm the hypothesis that impulsivity is positively related to rate of paced tapping, although the degree of relationship varied under different experimental conditions within the paced tapping task. Intraindividual variability of tapping was not significantly related to impulsivity, but the results were suggestive of a positive relationship.     

Personal Growth Initiative and Mental Health: A Meta-Analysis

Personal growth initiative (PGI) is an individual's active and intentional desire to grow in personally important areas. In the past 20 years, a body of literature has emerged examining PGI's relationship to mental health. We conducted the first meta-analyses to synthesize this literature. Two meta-analyses examined the relationship between PGI total scores and distress (k = 22) and wellness (k = 37). Both average effect sizes were significant. We also examined the potential impact of nine moderators. The type of outcome assessed was a significant moderator for PGI and distress, and the PGI measure used was a significant moderator for PGI and wellness, accounting for 61% and 15% of the overall variance, respectively. Meta-analyses examining the relationship between the four PGI subscales (Readiness for Change, Planfulness, Using Resources, and Intentional Behavior) and distress (k = 4) and wellness (k = 7) yielded similar results to the total score analyses.     

Transgenic inhibition of neuronal calcineurin activity in the forebrain facilitates fear conditioning, but inhibits the extinction of contextual fear memories

It is unclear whether protein phosphatases, which counteract the actions of protein kinases, play a beneficial role in the formation and extinction of previously acquired fear memories. In this study, we investigated the role of the calcium/calmodulin dependent phosphatase 2B, also known as calcineurin (CaN) in the formation of contextual fear memory and extinction of previously acquired contextual fear. We used a temporally regulated transgenic approach, that allowed us to selectively inhibit neuronal CaN activity in the forebrain either during conditioning or only during extinction training leaving the conditioning undisturbed. Reducing CaN activity through the expression of a CaN inhibitor facilitated contextual fear conditioning, while it impaired the extinction of previously formed contextual fear memory. These findings give the first genetic evidence that neuronal CaN plays an opposite role in the formation of contextual fear memories and the extinction of previously formed contextual fear memories.     

The Impossibility of Coherence

There is an emerging consensus in the literature on probabilistic coherence that such coherence cannot be truth conducive unless the information sources providing the cohering information are individually credible and collectively independent. Furthermore, coherence can at best be truth conducive in a ceteris paribus sense. Bovens and Hartmann have argued that there cannot be any measure of coherence that is truth conducive even in this very weak sense. In this paper, I give an alternative impossibility proof. I provide a relatively detailed comparison of the two results, which turn out to be logically unrelated, and argue that my result answers a question raised by Bovens and Hartmann’s study. Finally, I discuss the epistemological ramifications of these findings and try to make plausible that a shift to an explanatory framework such as Thagard’s is unlikely to turn the impossibility into a possibility.     

Understanding Gender and Intimate Partner Violence from an International Perspective

This paper reviews the international literature on intimate partner violence with a focus on gender differences in perpetration and victimization rates. A total of 35 studies from 21 countries are discussed that report prevalence or incidence rates of men’s and women’s involvement in physical and/or sexual aggression against an intimate partner. In addition, evidence on risk factors as well as consequences of intimate partner violence for men and women is presented. Conceptual and methodological differences between the studies and the lack of comparable databases within countries are discussed as limitations of the evidence, and perspectives for future research are outlined in the framework of cross-cultural psychology.     

Remembering “what” brings along “where” in visual working memory

Does a behavioral and anatomical division exist between spatial and object working memory? In this article, we explore this question by testing human participants in simple visual working memory tasks. We compared a condition in which there was no location change with conditions in which absolute location change and absolute plus relative location change were manipulated. The results showed that object memory was influenced by memory for relative but not for absolute location information. Furthermore, we demonstrated that relative space can be specified by a salient surrounding box or by distractor objects with no touching surfaces. Verbal memory was not influenced by any type of spatial information. Taken together, these results indicate that memory for “where” influences memory for “what.” We propose that there is an asymmetry in memory according to which object memory always contains location information.