Self-efficacy as a moderator of the planning-behaviour relationship in interventions designed to promote physical activity

Individuals who lack perceived self-efficacy may benefit less from planning interventions because they fail to apply their plans when encountering situations that appear challenging. Thus, self-efficacy may operate as a moderator in relation to the effects of planning interventions on behaviour. This article reports from two experimental studies using cluster randomisation. Study 1 included 58 patients with diabetes who received a face-to-face action planning intervention to improve their physical activity levels. Study 2 targeted the roles of planning and self-efficacy for the maintenance of regular running and for relapse prevention in 187 active individuals over a 2-year period. The email-delivered intervention prompted specific goal setting and facilitated planning to mobilise social support to secure relapse prevention. Results of the two studies were consistent with a moderating effect of self-efficacy in relation to the planning-behaviour relationship. Individuals with high self-efficacy benefited from planning interventions. If a person lacks self-efficacy, planning may not effectively promote physical activity.     

Dissociation of acquisition and expression of fear conditioned responses under working memory load

Previously, it has been suggested that high working memory load (WML) prevents associative learning and, thus, conditioned responses (CRs) during differential-delay fear conditioning. However, previous studies did not distinguish between the effects of WML on the acquisition versus the expression of the CRs. In the present study, we reinvestigated this issue by manipulating WML during either acquisition or postconditioning and showed that the absence of a differential CR under high WML does not indicate the absence of the acquisition of this CR. Thus, a significant CR was observed during a task-free postconditioning phase, and there was no CR during the preceding acquisition phase with high WML. Conversely, a normally acquired CR was impaired by high WML during the postconditioning phase. The results suggest that high WML affects the expression of the CR. If they are not experimentally separated, the effects of WML on the acquisition and expression of the CR may occur together, and the findings may be erroneously interpreted as indicating a lack of associative learning.     

Decision-making under risk conditions is susceptible to interference by a secondary executive task

Recent research suggests two ways of making decisions: an intuitive and an analytical one. The current study examines whether a secondary executive task interferes with advantageous decision-making in the Game of Dice Task (GDT), a decision-making task with explicit and stable rules that taps executive functioning. One group of participants performed the original GDT solely, two groups performed either the GDT and a 1-back or a 2-back working memory task as a secondary task simultaneously. Results show that the group which performed the GDT and the secondary task with high executive load (2-back) decided less advantageously than the group which did not perform a secondary executive task. These findings give further evidence for the view that decision-making under risky conditions taps into the rational-analytical system which acts in a serial and not parallel way as performance on the GDT is disturbed by a parallel task that also requires executive resources.     

Watching pornographic pictures on the Internet: role of sexual arousal ratings and psychological-psychiatric symptoms for using Internet sex sites excessively

Excessive or addictive Internet use can be linked to different online activities, such as Internet gaming or cybersex. The usage of Internet pornography sites is one important facet of online sexual activity. The aim of the present work was to examine potential predictors of a tendency toward cybersex addiction in terms of subjective complaints in everyday life due to online sexual activities. We focused on the subjective evaluation of Internet pornographic material with respect to sexual arousal and emotional valence, as well as on psychological symptoms as potential predictors. We examined 89 heterosexual, male participants with an experimental task assessing subjective sexual arousal and emotional valence of Internet pornographic pictures. The Internet Addiction Test (IAT) and a modified version of the IAT for online sexual activities (IATsex), as well as several further questionnaires measuring psychological symptoms and facets of personality were also administered to the participants. Results indicate that self-reported problems in daily life linked to online sexual activities were predicted by subjective sexual arousal ratings of the pornographic material, global severity of psychological symptoms, and the number of sex applications used when being on Internet sex sites in daily life, while the time spent on Internet sex sites (minutes per day) did not significantly contribute to explanation of variance in IATsex score. Personality facets were not significantly correlated with the IATsex score. The study demonstrates the important role of subjective arousal and psychological symptoms as potential correlates of development or maintenance of excessive online sexual activity.     

Saccadic facilitation by modulation of microsaccades in natural backgrounds

Saccades move objects of interest into the center of the visual field for high-acuity visual analysis. White, Stritzke, and Gegenfurtner (Current Biology, 18, 124-128, 2008) have shown that saccadic latencies in the context of a structured background are much shorter than those with an unstructured background at equal levels of visibility. This effect has been explained by possible preactivation of the saccadic circuitry whenever a structured background acts as a mask for potential saccade targets. Here, we show that background textures modulate rates of microsaccades during visual fixation. First, after a display change, structured backgrounds induce a stronger decrease of microsaccade rates than do uniform backgrounds. Second, we demonstrate that the occurrence of a microsaccade in a critical time window can delay a subsequent saccadic response. Taken together, our findings suggest that microsaccades contribute to the saccadic facilitation effect, due to a modulation of microsaccade rates by properties of the background.     

An exploratory study on self‐evaluated aggression and androgens in women

Healthy, premenopausal women completed the Buss‐Perry Aggression Questionnaire. Venous blood samples were taken at the mid‐cycle phase of the menstrual cycle to determine plasma androgen levels. Total and free testosterone, 5α‐dihydrotestosterone, androstenedione, and dehydroepiandrosterone were assessed. Path analyses were aimed at finding out which of the five circulating hormones might best predict a latent aggression construct derived from the four subscales of the Aggression Questionnaire. A significant correlation was found between free testosterone and physical and verbal aggression subscales. In addition, the results demonstrate for the first time in women a significant link between 5α‐dihydrotestosterone and anger. Thus, both testosterone and 5α‐dihydrotestosterone may affect, by separate pathways, the basal regulation of aggression‐proneness in women. Aggr. Behav. 28:273–280, 2002. © 2002 Wiley‐Liss, Inc.     

Evidence for ‘motionese’: modifications in mothers’ infant‐directed action

We investigated the possibility that mothers modify their infant‐directed actions in ways that might assist infants’ processing of human action. In a between‐subjects design, 51 mothers demonstrated the properties of five novel objects either to their infant (age 6–8 months or 11–13 months) or to an adult partner. As predicted, demonstrations to infants were higher in interactiveness, enthusiasm, proximity to partner, range of motion, repetitiveness and simplicity, indicating that mothers indeed modify their infant‐directed actions in ways that likely maintain infants’ attention and highlight the structure and meaning of action. The findings demonstrate that ‘motherese’ is broader in scope than previously recognized, including modifications to action as well as language.     

Eating Disorders: A Bond between Medicine,Culture and Psychoanalysis

Action in connection with the therapeutic process is often equated with acting out. The subtle behaviour that belongs to ?the complicated system of transmitting and receiving unconscious signals? (Sandler), with which the patient attempts to make the analyst behave as the object of transference or to fulfill an unconscious desire, is also described as acting out or micro-acting out (Treurniet). This fine-grained action, however, means nothing; it is not symbolic or communicative action. Its intention is, rather, to trigger effects and induce interactions. It occurs not only on the side of the analysand but also on that of the analyst, and is part of the unconscious communication in the therapeutic process. Presented here are some of the various interactive ways and means with which the analyst is prompted into unconscious action and certain, unnoticed, ways in that he turn ?treats? the patient. The analyst's action responses can bear the character of interpretations with which he may unintentionally reveal how he regards the behaviour of the patient.     

Working memory and intelligence--their correlation and their relation: comment on Ackerman, Beier, and Boyle (2005)

On the basis of a meta-analysis of pairwise correlations between working memory tasks and cognitive ability measures, P. L. Ackerman, M. E. Beier, and M. O. Boyle (2005; see record 2004-22408-002) claimed that working memory capacity (WMC) shares less than 25% of its variance with general intelligence (g) and with reasoning ability. In this comment, the authors argue that this is an underestimation because of several methodological shortcomings and biases. A reanalysis of the data reported in Ackerman et al. using the correct statistical procedures demonstrates that g and WMC are very highly correlated. On a conceptual level, the authors point out that WMC should be regarded as an explanatory construct for intellectual abilities. Theories of working memory do not claim that WMC is isomorphic with intelligence factors but that it is a very strong predictor of reasoning ability and also predicts general fluid intelligence and g.