Hot or not: visceral influences on coping planning for weight loss attempts

The current studies aimed to examine how either or not being hungry (hot vs. cold state) affects uninformed (i.e. without specific instructions) coping planning for maintaining goal-directed behaviour in weight loss attempts. We hypothesised that being hungry is beneficial both for (1) increasing awareness of potentially challenging situations and for (2) planning how to cope with these situations. The first hypothesis was supported, whereas the second was not, as it was found that satiated participants constructed better quality coping plans than hungry participants. It appears that awareness of potentially challenging situations when hungry does not necessarily translate into better coping planning. Although coping planning appears to be a promising strategy for maintaining goal-directed behaviour, future research should focus on visceral states to improve its use.     

Syntactic processing in bilinguals: an fNIRS study

The study of the neural basis of syntactic processing has greatly benefited from neuroimaging techniques. Research on syntactic processing in bilinguals has used a variety of techniques, including mainly functional magnetic resonance imaging (fMRI) and event-related potentials (ERP). This paper reports on a functional near-infrared spectroscopy (fNIRS) study on syntactic processing in highly proficient young adult speakers of Portuguese (mother tongue) (L1) and French (second language) (L2). They made a syntactic judgment of visually presented sentences, which either did or did not contain noun-verb agreement violations. The results showed that syntactic processing in both languages resulted in significant activation in anterior frontal regions of the left hemisphere and in the temporal superior posterior areas of the right hemisphere, with a more prominent activation for L2 in some areas. These findings corroborate previously reported neuroimaging evidence, showing the suitability of fNIRS for the study of syntactic processing in the bilingual brain.     

Participation of hippocampal cholinergic system in memory persistence for inhibitory avoidance in rats

Memory persistence needs a new event of consolidation 12h after the acquisition. We investigated the role of the cholinergic activity on the persistence of memory. For this purpose, we performed the treatments 9 or 12h after acquisition and the memory tested 2 or 7 days after inhibitory avoidance (IA) training. Here we report that activity of medial septum, by transitorily inactivating this structure with lidocaine 12h after IA training, is essential for memory persistence at the 7th day, but not for the formation at the 2nd day. We also report that muscarinic and nicotinic cholinergic receptors of CA1 area are engaged on memory persistence. Since scopolamine (mAChRs antagonist) and mecamylamine (nAChRs blocker) infusions, 12h post-training, demonstrated impairment on long term memory (LTM), persistence on the 7th day but no effect on LTM formation was found on the 2nd day in the IA test. The same effects were found with pirenzepine, an M1 antagonist. No effects on the formation and persistence of memory on the 2nd and 7th days were demonstrated after DHβE infusions (nAChRs subtype antagonist α4β2, α3β2). These findings suggest that mAChR and nAChR at the CA1 area, and also MS activation, are required for the persistence of memory.     

Neosexism Among Male Managers: Is It a Matter of Numbers?1

In the last 2 decades, the number of women entering the managerial field has increased. However, this increase has not been equally distributed at all levels. The interest of this study lies in understanding how this sudden surge of women in managerial fields and their unequal distribution across levels are associated with men's reactions toward women. Do men feel threatened by the introduction of women as their coworkers, and if so does this change trigger prejudicial views of women? In all, 123 male managers employed in a Canadian federal agency participated in this study. According to the final path model, as the estimate of the representation of female managers increases, so does male managers' feeling of threat. Feeling threatened along with the estimate of an increase of new female recruits is linked to heightened neosexist views. In turn, neosexism is related to a pro-male bias in the evaluation of women's and men's competence. Additionally, neosexism is negatively associated with men's willingness to support women. Theoretical as well as practical implications of results are discussed.     

Localization with complete masking in one ear

There is some disagreement among the results of studies measuring lateralization and localization with an interference stimulus in one ear. At least one shows no fusion of a binaurally presented signal when the part of the signal in the ear receiving interference is completely masked. Two other studies obtain results which could not be predicted by the first result. The present study is a lateralization study presenting signals binaurally with complete masking in one ear. The stimuli are pure tones, and S manipulates the loudness of the signal in the unmasked ear. These are procedural differences from the first study. Results indicate that Ss can fuse signals when the part of the signal in one ear is completely masked by a narrow band of noise. It also indicates that the effect on lateralization is increased when the noise in the critical band is filtered out.     

Dexamethasone and stressor-magnitude regulation of stress-induced transcription of HPA axis secretagogues in the rat

Regulation of the production of hypothalamic-pituitary-adrenal (HPA) axis secretagogues, corticotropin-releasing hormone (CRH) and arginine vasopressin (AVP), may be differentially sensitive to the negative feedback effects of glucocorticoids. We chose to study this phenomenon by examining the ability of dexamethasone to influence CRH and AVP heteronuclear RNA (hnRNA) levels in an escapable/inescapable (ES/IS) foot-shock stress paradigm. On Day 1, adult male rats were subjected to either ES or IS foot-shock; on Day 2, saline or dexamethasone (100 microg/kg) was administered 2 h prior to the stressor. We found that ES/IS foot-shock stimulated similar robust increases in plasma adrenocorticotrophic hormone (ACTH) and corticosterone concentrations, and medial parvocellular division of the paraventricular nucleus (mpPVN) AVP and CRH hnRNA and c-fos mRNA levels in saline-treated ES/IS rats. Dexamethasone pretreatment suppressed ACTH and corticosterone levels similarly in IS and ES animals. Dexamethasone pretreatment also suppressed mpPVN CRH and AVP hnRNA levels at 30 min. However, by 120 min, the mpPVN AVP hnRNA levels in dexamethasone-treated rats were similar to those measured in the saline group. We also found that rats that received the most shocks on Day 1 had greater HPA axis activation on Day 2. We conclude that the magnitude of the foot-shock stressor, determined by learned and immediate cues, is important in determining the magnitude of the HPA response.     

Equally Shared Parenting

Conventional images of motherhood and fatherhood, social interactions, and gender-based job pressures push couples toward unequal parenting. Equally sharing parents resist those pressures, and construct equality through everyday negotiations and ongoing decisions about family and work. They do not believe that mothers are more responsible for children, or more suited to care for them, than fathers. They avoid gender-based decisions about jobs that reinforce a gender-based division of labor at home. Qualitative research is necessary to unravel the complex interactions between work and family arrangements, and to show how economic, social, and ideological factors constrain family arrangements, but are also transformed in their creation.     

Personal Relative Deprivation: A Look at the Grievous Consequences of Grievance

Stouffer et al. (1949) have first coined the term ‘relative deprivation’ to account for unexpected grievance expressed by members of a fortunate group. Many researchers have built on this work and have concluded that a person's feeling of deprivation is relative rather than absolute. In other words, deprivation stems from a social comparison with better‐off persons. In this chapter, a brief summary of the ground‐breaking research on relative deprivation is presented followed by an overview of research on overt and covert responses to personal relative deprivation. In accounting for the silent reactions of the underprivileged, we mainly focus on recent research linking personal relative deprivation to psychological disengagement. Turning to the responses of members of privileged groups, we take into account personal relative deprivation and gratification. Our concluding remarks suggest that responses of both the underprivileged and the privileged concur to the maintenance of the status quo.