Factor structure of the mobility inventory for agoraphobia: A validational study with australian samples of agoraphobic patients

This study examines the factor structure of the Mobility Inventory for Agoraphobia and attempts to validate the inventory, using an Australian sample of agoraphobic patients, by comparison with other scales. One hundred twentyfour panic disorder with agoraphobia patients were studied. Factor analysis showed that a two-factor solution was the most suitable both when subjects were accompanied (accompanied condition) and when alone (alone condition). Factor I represented public, crowded, or social situations including department stores, supermarkets, restaurants, theaters, and panics and social gatherings. Factor II reflected enclosed or riding situations such as elevators, parking garages, enclosed spaces, and riding in subways or airplanes. These two factors accounted for 46.6% and 44.3% of the variance on the accompanied condition and the alone condition, respectively. The Mobility Inventory was significantly correlated with the Agoraphobia factor of the Fear Questionnaire and the Social Avoidance and Distress scale. These results indicated that the Mobility Inventory is a valid instrument to measure agoraphobic behavior.     

Influence of social motives on integrative negotiation: a meta-analytic review and test of two theories

A meta-analysis of 28 studies examined support for the Theory of Cooperation and Competition (M. Deutsch, 1973) and Dual Concern Theory (D. G. Pruitt & J. Z. Rubin, 1986). Effects of social motive (prosocial vs. egoistic) and resistance to yielding (high vs. low vs. unknown) on contenting, problem solving, and joint outcomes were examined. Consistent with Dual Concern Theory, results showed that negotiators were less contentious, engaged in more problem solving, and achieved higher joint outcomes when they had a prosocial rather than egoistic motive, but only when resistance to yielding was high (or unknown) rather than low. The authors also explored the moderating effects of study characteristics and found effects for participation inducement (class exercise, participant pool), for publication status, and for treatment of no-agreement dyads.     

Varying intertrial interval reveals temporally defined memory deficits and enhancements in NTAN1-deficient mice

The N-end rule is one ubiquitin-proteolytic pathway that relates the in vivo half-life of a protein to the identity of its N-terminal residue. NTAN1 deamidates N-terminal asparagine to aspartate, which is conjugated to arginine by ATE1. An N-terminal arginine-bearing substrate protein is recognized, ubiquitylated by UBR1/E3α, and subsequently degraded by 26S proteasomes. Previous research showed that NTAN1-deficient mice exhibited impaired long-term memory in the Lashley III maze. Therefore, a series of studies, designed to assess the role of NTAN1 in short- and intermediate-term memory processes, was undertaken. Two hundred sixty mice (126 −/−; 134 +/ +) received Lashley III maze training with intertrial intervals ranging from 2–180 min. Results indicated that inactivation of NTAN1 amidase differentially affects short-, intermediate-, and long-term memory.     

How golden hamsters (Mesocricetus auratus) discriminate top from bottom flank scents in over-marks

Using a habituation-discrimination paradigm, the authors investigated what cues male golden hamsters (Mesocricetus auratus) use to determine the top and bottom positions in flank gland over-marks. A difference in the ages of 2 hamsters' marks did not, by itself, produce differential memory or evaluation of the 2 scents. A spatial configuration of marks suggestive of an overlap was sufficient for the apparently overlapping scent to be remembered or valued more than the apparently underlying scent. Cues from the overlap of 2 hamsters' marks were also sufficient. These results, consistent with those previously found for responses to hamster vaginal scent over-marks, suggest that hamsters use similar cues to analyze scent over-marks that are different in chemical composition and in social functions.     

Influence of brain-derived neurotrophic factor and catechol O-methyl transferase polymorphisms on effects of meditation on plasma catecholamines and stress

Meditation may show differential effects on stress and plasma catecholamines based on genetic polymorphisms in brain-derived neurotrophic factor (BDNF) and catechol O-methyl transferase (COMT). Eighty adults (40 men, 40 women; mean age 26 years) who practiced meditation regularly and 57 healthy control adults (35 men, 22 women; mean age 26 years) participated. Plasma catecholamines (norepinephrine (NE), epinephrine (E), and dopamine (DA)) concentrations were measured, and a modified form of the Stress Response Inventory was administered. The results were analyzed using two-way analysis of covariance (ANCOVA) with control and meditation subjects, gene polymorphism as factors, and meditation duration as the covariate. Two-way ANCOVA showed a significant interaction between control and meditation subjects, and BDNF Val66Met polymorphism on DA/NE+DA/E (p = 0.042) and NE/E+NE/DA (p = 0.046) ratios. A significant interaction was found for control and meditation subjects with COMT Val158Met polymorphism and plasma NE concentrations (p = 0.009). Post hoc ANCOVA in the meditation group, adjusted for meditation duration, showed significantly higher plasma NE concentrations for COMT Met carriers than COMT Val/Val subjects (p = 0.025). Significant differences of stress levels were found between the control and meditation subjects in BDNF Val/Met (p < 0.001) and BDNF Met/Met (p = 0.003), whereas stress levels in the BDNF Val/Val genotype did not differ between the control and meditation groups. This is the first evidence that meditation produces different effects on plasma catecholamines according to BDNF or COMT polymorphisms.     

The Role of Hope in Preventive Interventions

Preventive interventions have historically focused on reducing risk factors for psychological difficulties. Recent research has found that prevention programs are more effective when they enhance strengths, rather than merely reduce risk factors. An increased focus on strengths is consistent with a positive psychology perspective. In fact, hope has been found to be a central human strength in the positive psychology literature. Hope is associated with better adjustment, lower anxiety, lower depression, greater academic performance, and greater athletic achievement. In addition, individuals with high hope are able to respond more adaptively after traumatic events and physical illnesses. Intervention studies have shown that hope can be increased in individuals, and hope has been shown to predict more positive outcomes in psychotherapy. Future directions for research are outlined, including investigating hope as a preventive intervention for members of stigmatized groups, including ethnic minorities and lesbian, gay, and bisexual individuals.     

Nostalgia's fulfillment of agentic and communal needs: How different types of self‐concepts shape consumer attitudes toward nostalgia

This research investigates how consumers' different types of self‐concepts (agentic vs. communal) shape their attitudes toward nostalgia. Experiment 1, using a two (self‐concept: agentic vs. communal) by two (nostalgia: nostalgic vs. non‐nostalgic) between‐subjects design and a series of multivariate analysis of variance and Hayes's PROCESS Model 8, showed that agentic and communal participants' preference was not increased in the non‐nostalgic condition but was increased in the nostalgic condition. Self‐concept indirectly influenced participants' preference for the nostalgic product through different functions of nostalgia; Agentic participants' likelihood of buying a nostalgic product and recommending it to others increased through enhanced self‐positivity, whereas communal participants' likelihood of buying a nostalgic product and recommending it to others increased through enhanced social connectedness. In Experiment 2, these results were replicated in the context of a public education campaign, and participants' chronic self‐concepts were measured. Participants with different chronic self‐concept tendencies were randomly assigned to nostalgic or non‐nostalgic conditions and were asked to indicate their attitudes toward the campaign. As in Experiment 1, a series of regression and Hayes' PROCESS Model 8 revealed that agentic and communal participants' attitudes were not enhanced in the non‐nostalgic condition but were enhanced in the nostalgic condition. Agentic (communal) individuals' favorability toward the nostalgic message about advocacy increased through enhanced self‐positivity (social connectedness). It appears that consumers with different self‐concepts (agentic vs. communal) experience enhanced feelings relevant to their self‐concepts (self‐positivity vs. social connectedness) when presented with nostalgic appeals for an object, and these heightened feelings drive an increased preference for it. Copyright © 2016 John Wiley & Sons, Ltd.