The Effects of Weight Loss Attempts, Exercise Initiation, and Dietary Practices on Health Related Quality of Life

This study (N = 98) randomly placed participants in either a higher protein or American Heart Association diet group with each group initiating an aerobic exercise program. Body composition (BC) was measured using four different methodologies (DEXA, BIA, skinfold, BMI) along with height and weight, while Health-Related Quality of Life (HRQOL) changes were measured using the Medical Outcomes Short Form 36 (SF-36). There were no significant time/diet interactions in HRQOL scores, body fat measures, and weight with the exception of Role-Physical scores (p = .006) with posttest scores higher in participants in Diet 1. Role-Physical scores changed significantly in participants in Diet 1 (p = .0001) and Diet 2 (p = .026) with higher posttest scores in each group. Social functioning had a significant main effect for time in both groups with pretest scores in both diet groups lower than their respective posttest scores (p = .015). HRQOL pretest scores were not significantly different between groups at baseline (p = .56). ANOVA revealed no significant differences in average calories between groups (p = .88). Analysis revealed no differences in exercise in minutes (p = .66) nor statistically significant changes in BC or weight (p = .65). Conclusions: Improvements in HRQOL were demonstrated in two subscales related to physiological and psychological functioning. These novel findings add to literature suggesting that HRQOL, at least concerning social functioning, work and other daily activities (Role-Physical) may improve by initiating an exercise and dietary program even when weight loss or BC improvements have been unsuccessful.     

Medial prefrontal cortex infusions of bupivacaine or AP-5 block extinction of amphetamine conditioned place preference

The present experiments used reversible lesion techniques and intra-mPFC infusions of the n-methyl d-aspartate (NMDA) receptor antagonist d,l-2-amino-5-phosphonovaleric acid (AP-5) to examine the role of the mPFC in extinction of an amphetamine conditioned place preference (CPP). Following initial training and testing for an amphetamine (2 mg/kg) CPP, adult male Long–Evans rats were given extinction trials that were identical to training, except in the absence of peripheral amphetamine injections. Immediately prior to each extinction trial, rats received intra-mPFC infusions of the anesthetic drug bupivacaine (0.75% solution/0.5 μl), AP-5 (1.25, 2.5, 5.0 μg/0.5 μl), or saline. Following extinction training, rats were given a second CPP test session. Rats receiving intra-mPFC infusions of saline displayed extinction of CPP behavior. In contrast, intra-mPFC infusions of bupivacaine or AP-5 (2.5, 5.0 μg) blocked CPP extinction. The findings indicate (1) the mPFC mediates extinction of approach behavior to drug-associated environmental contexts, and (2) NMDA receptor blockade within the mPFC is sufficient to block extinction of amphetamine CPP behavior.     

Smelling objects

Objects are central to perception and our interactions with the world. We perceive the world as parsed into discrete entities that instantiate particular properties, and these items capture our attention and shape how we interact with the environment. Recently there has been some debate about whether the sense of smell allows us to perceive odours as discrete objects, with some suggesting that olfaction is aspatial and doesn’t allow for object-individuation. This paper offers two empirically tractable criteria for assessing whether particular objects are exhibited in perceptual experience—(1) susceptibility to figure-ground segregation and (2) perceptual constancies—and argues that these criteria are fulfilled by olfactory perception, and thus there are olfactory objects. I argue that there are, in fact, two different ways that olfaction allows for figure-ground segregation. First, I look at various Gestalt grouping principles, which are thought to govern when features are perceived as grouped into structured wholes, segregated from everything around them. I argue that these principles apply to olfactory experience, providing evidence of non-spatial figure-ground segregation. Second, I defend the contentious idea that a spatial variety of figure-ground segregation can also occur in olfaction. To see this, however, we need to look to empirical evidence showing that tactile stimulation and bodily movements play a crucial role in olfactory phenomenology. Finally, I draw on empirical evidence and olfactory phenomenology to argue that there are perceptual constancies in olfactory experience, allowing us to perceive odours as coherent objects that survive shifts in our perspectives on the world.

     

D-Cycloserine enhances memory consolidation of hippocampus-dependent latent extinction

Adult male Long-Evans rats were trained to run in a straight-alley maze for food reward and subsequently received hippocampus-dependent latent extinction training. Immediately following latent extinction, rats received peripheral injections of the NMDA receptor partial agonist D-cycloserine (DCS, 15 mg/kg), or saline. Twenty-four hours later, rats received four extinction "probe" trials. Relative to saline controls, latencies to reach the goal box on probe trials were significantly higher in rats that had received DCS. These findings indicate that memory consolidation underlying hippocampus-dependent latent extinction, a cognitive form of learning in which the previously rewarded response is not made during extinction training, can be enhanced by NMDA-receptor agonism.     

Relations between risk perceptions and socio-political ideology are domain- and ideology- dependent

Public policy intended to address risks is largely determined by government officials who are typically elected by ‘the people’. Lay people presumably support political figures most likely to tackle the risks perceived as relevant. The present research investigated whether risk perceptions vary by risk domain and socio-political ideology. American community adults (N = 387) recruited using Amazon Mechanical Turk completed measures of right-wing authoritarianism (RWA), social dominance orientation (SDO), political conservatism, and perceived domain risks. Risk perceptions of conservatives versus liberals systematically differed by domain: Increases in political conservatism (vs. liberalism) and RWA were associated with perceiving “personal danger” hazards as more risky, whereas increases in SDO were associated with perceiving “competitive” hazards as less risky. A liberal-orientation was associated with heightened risk concerning collective (shared) hazards.     

The happy cyclist: Examining the association between generalized authoritarianism and subjective well-being

Although authoritarianism can negatively impact others (e.g., by predicting prejudiced intergroup attitudes), implications for the self are mixed and require clarification. Extending previous research, we examined the association between generalized authoritarianism (GA, indicated by right-wing authoritarianism and social dominance orientation) and subjective well-being (SWB, indicated by positive affect, negative affect, and life satisfaction) by testing simultaneously the general-level association between GA and SWB as well as specific residual associations between GA and SWB components, independent of basic personality dimensions. We observed a significant general-level association between GA and SWB whereby heightened authoritarianism predicted greater SWB. No residual associations were found between specific GA and SWB components. Despite being “bad” for others, generalized authoritarianism may be “good” for the self.     

From scapegoating to thinking and finding a home: delivering therapeutic work in schools

This paper discusses how the child psychotherapist's core skills can be usefully applied in a school setting. It outlines some of the important policy changes that have necessitated a move towards delivering therapeutic work in community settings such as schools. It is argued that the role of the child psychotherapist in schools has much in common with the role played by the psychotherapist in a therapeutic community. The paper suggests that therapy in schools is in many ways less simple than therapy in clinic settings, and in particular it is often unclear who exactly the client is and at what level to intervene when a referral is made. The referred patient is not necessarily the ‘problem’, so that the child psychotherapist must be prepared to tackle issues in the system to ensure that splitting and projection are reduced, and systems around children can become more containing. Clinical vignettes and one main clinical illustration are used to try to illustrate these points.     

Single-digit Arabic numbers do not automatically activate magnitude representations in adults or in children: Evidence from the symbolic same–different task

We investigated whether the mere presentation of single-digit Arabic numbers activates their magnitude representations using a visually-presented symbolic same–different task for 20 adults and 15 children. Participants saw two single-digit Arabic numbers on a screen and judged whether the numbers were the same or different. We examined whether reaction time in this task was primarily driven by (objective or subjective) perceptual similarity, or by the numerical difference between the two digits. We reasoned that, if Arabic numbers automatically activate magnitude representations, a numerical function would best predict reaction time; but if Arabic numbers do not automatically activate magnitude representations, a perceptual function would best predict reaction time. Linear regressions revealed that a perceptual function, specifically, subjective visual similarity, was the best and only significant predictor of reaction time in adults and in children. These data strongly suggest that, in this task, single-digit Arabic numbers do not necessarily automatically activate magnitude representations in adults or in children. As the first study to date to explicitly study the developmental importance of perceptual factors in the symbolic same–different task, we found no significant differences between adults and children in their reliance on perceptual information in this task. Based on our findings, we propose that visual properties may play a key role in symbolic number judgements.     

Enjoyment of sexualization: is it different for men?

We elucidated the Enjoyment of Sexualization (ES) construct in a sample of 206 female and 118 male undergraduate students. Our male ES Scale had high reliability, and confirmatory factor analyses indicated that a univariate structure was appropriate for both men and women. ES added to the prediction of self‐esteem and number of sexual partners (but not body shame) after controlling for self‐objectification; gender did not moderate these relationships. The relationship between ES and number of sexual partners was moderated by attractiveness such that individuals who believed themselves to be more attractive had more sexual partners at high levels of ES. Furthermore, ES was distinguishable from the conceptually‐related self‐objectification construct with regard to Big Five personality. Finally, results suggested that ES might be less harmful than self‐objectification.     

AN EVALUATION OF A PROGRESSIVE HIGH-PROBABILITY INSTRUCTIONAL SEQUENCE COMBINED WITH LOW-PROBABILITY DEMAND FADING IN THE TREATMENT OF FOOD SELECTIVITY

Few studies have examined the effects of the high‐probability instructional sequence in the treatment of food selectivity, and results of these studies have been mixed (e.g., Dawson et al., 2003 ; Patel et al., 2007 ). The present study extended previous research on the high‐probability instructional sequence by combining this procedure with low‐probability demand fading with 2 boys with autism (9 and 10 years old) who had a history of food selectivity and engaged in active food refusal behaviors when presented with novel foods. Response requirements were faded gradually from responses the child would tolerate (e.g., touching the food) to the final requirement of chewing and swallowing the food. The antecedent‐based intervention was implemented in the absence of escape extinction and was effective in increasing food consumption for both participants. Possible mechanisms responsible for the effectiveness of the intervention are discussed along with directions for future research.