Noradrenergic control of odor recognition in a nonassociative olfactory learning task in the mouse

The present study examined the influence of pharmacological modulations of the locus coeruleus noradrenergic system on odor recognition in the mouse. Mice exposed to a nonrewarded olfactory stimulation (training) were able to memorize this odor and to discriminate it from a new odor in a recall test performed 15 min later. At longer delays (30 or 60 min), the familiar odor was no longer retained, and both stimuli were perceived as new ones. Following a post-training injection of the alpha(2)-adrenoceptor antagonist dexefaroxan, the familiar odor was still remembered 30 min after training. In contrast, both the alpha(2)-adrenoceptor agonist UK 14304 and the noradrenergic neurotoxin DSP-4 prevented the recognition of the familiar odor 15 min after the first exposure. Noradrenaline release in the olfactory bulb, assessed by measurement of the extracellular noradrenaline metabolite normetanephrine, was increased by 62% following dexefaroxan injection, and was decreased by 38%-44% after treatment with UK 14304 and DSP-4. Performance of mice in the recall test was reduced by a post-training injection of the beta-adrenoceptor antagonist propranolol or the alpha(1)-antagonist prazosin, thus implicating a role for beta- and alpha(1)-adrenoceptors in the facilitating effects of noradrenaline on short-term olfactory recognition in this model.     

The impact of negative moods on self-enhancing cognitions: the role of reflective versus ruminative mood orientations

This research program examined how self-focused attention to feelings affects the relation between mood negativity and self-enhancing thought. The primary hypothesis was that the particular manner in which people focus on their moods (reflective vs. ruminative) determines whether they reveal positive (i.e., mood-incongruent) or negative (i.e., mood-congruent) self-relevant thoughts in response to negative moods. Studies 1-4 revealed that social comparisons, temporal comparisons, and other self-enhancing cognitions (i.e., attributions, disidentification, relationship evaluations) are more likely to be mood incongruent when people adopt a reflective orientation to their negative feelings and more likely to be mood congruent when they adopt a ruminative orientation. Additionally, moods and mood orientations affected self-enhancing thoughts through the mediating influence of mood regulation goals and intentions (Studies 5 and 6).     

Subjective Well-Being of Older African Americans with DSM IV Psychiatric Disorders

This study examined demographic and mental health correlates of subjective well-being (i.e., life satisfaction, happiness) using a national sample of older African Americans with psychiatric disorders. We used a subsample of 185 African Americans, 55 and older with at least one of thirteen lifetime psychiatric disorders from The National Survey of American Life: Coping with Stress in the Twenty-first Century. The findings indicated that among this population of older adults who had a lifetime psychiatric disorder, having a lifetime suicidal ideation was associated with life satisfaction but not happiness. Further, having a 12-month anxiety disorder or a lifetime suicidal ideation was not associated with happiness. Having a 12-month mood disorder, however, was negatively associated with an individual’s level of happiness, as well as their life satisfaction. Additionally, there were two significant interactions. Among men, employment was positively associated with life satisfaction, and marriage was associated with higher levels of happiness among men but not women. The overall pattern of findings reflects both similarities and departures from prior research confirming that well-being evaluations are associated with multiple factors.     

Belief in a zero-sum game and subjective well-being across 35 countries

Current Psychology - This article presents a short research report on the relationship between perceived antagonism in social relations measured using the Belief in a Zero-Sum Game (BZSG) scale,...     

Differential aversive learning enhances orientation discrimination

A number of recent studies have documented rapid changes in behavioural sensory acuity induced by aversive learning in the olfactory and auditory modalities. The effect of aversive learning on the discrimination of low-level features in the visual system of humans remains unclear. Here, we used a psychophysical staircase procedure to estimate discrimination thresholds for oriented grating stimuli, before and after differential aversive learning. We discovered that when a target grating orientation was conditioned with an aversive loud noise, it subsequently led to an improvement of discrimination acuity in nearly all subjects. However, no such change was observed in a control group conditioned to an orientation shifted by ±90° from the target. Our findings cannot be explained by contextual learning or sensitisation factors. The results converge with those reported in the olfactory modality and provide further evidence that early sensory systems can be rapidly modified by recently experienced reinforcement histories.     

Disruptive effects of contingent food on high-probability behavior

The delivery of food contingent on 10 s of consecutive toy engagement resulted in a decrease in engagement and a corresponding increase in other responses that had been previously reinforced with food. Similar effects were not observed when tokens exchangeable for the same food were delivered, suggesting that engagement was disrupted by the contingent provision of the food, which may have functioned as a discriminative stimulus that occasioned competing responses.     

An Exploration of the Dishonest Side of Self‐Monitoring: Links to Moral Disengagement and Unethical Business Decision Making

The majority of research on self‐monitoring has focused on the positive aspects of this personality trait. The goal of the present research was to shed some light on the potential negative side of self‐monitoring and resulting consequences in two independent studies. Study 1 demonstrated that, in addition to being higher on Extraversion, high self‐monitors are also more likely to be low on Honesty‐Humility, which is characterized by a tendency to be dishonest and driven by self‐gain. Study 2 was designed to investigate the consequences of this dishonest side of self‐monitoring using two previously unexamined outcomes: moral disengagement and unethical business decision making. Results showed that high self‐monitors are more likely to engage in unethical business decision making and that this relationship is mediated by the propensity to engage in moral disengagement. In addition, these negative effects of self‐monitoring were found to be due to its low Honesty‐Humility aspect, rather than its high Extraversion side. Further investigation showed similar effects for the Other‐Directedness and Acting (but not Extraversion) self‐monitoring subscales. These findings provide valuable insight into previously unexamined negative consequences of self‐monitoring and suggest important directions for future research on self‐monitoring. Copyright © 2013 European Association of Personality Psychology     

How Psychotherapists Address Hypothetical Multiple Relationships Dilemmas with Asian American Clients: A National Survey

This study examined how psychotherapists address hypothetical nonsexual multiple relationships dilemmas with Asian American clients and identified predictors of conservative decisions and the use of culture-based rationales. This survey of 787 Asian American and non-Asian American psychotherapists revealed that clinicians rely on mostly their personal policies and seldom focus on the clients' cultural backgrounds. Psychotherapists who consider their clients' Asian culture have more cultural knowledge and awareness, have been mental health providers longer, and are Asian American and female. Clinicians who avoid multiple relationships tend to cite formal policies as justification and are less likely to consider clients' cultural worldviews, the therapeutic relationship, or their own values. The results are discussed in terms of specific revisions needed in the American Psychological Association Ethics Code, the benefits of more frequent consultation with colleagues and supervisors about ethical dilemmas, and recommendations for psychotherapists.     

The Health Insurance and Life Satisfaction Connection

Prior studies indicate that perceived health is strongly associated with a sense of well-being. The effect of health insurance is much less clear: there has been little rigorous empirical research assessing whether health coverage has an independent impact on individual happiness. This topic is especially important in the US where recently an estimated 18 % of the non-elderly were uninsured and extension of coverage through means such as the Affordable Care Act has been controversial. The present study addresses this question. Drawing from a large survey that collected comprehensive health and personal information about the US adult population, controlling for a wide variety of factors known to influence well-being, and addressing the possible endogeneity of having health insurance, we find that individuals without health insurance coverage were less likely to be “very satisfied” or “satisfied” with life. This may be because health insurance reduces uncertainty. Regardless of other benefits it may bring, the expansion of health insurance coverage should increase the life satisfaction of American society.