Do the Emotional Benefits of Optimism Vary Across Older Adulthood? A Life Span Perspective

This study examined whether the emotional benefits of dispositional optimism for managing stressful encounters decrease across older adulthood. Such an effect might emerge because age‐related declines in opportunities for overcoming stressors could reduce the effectiveness of optimism. This hypothesis was tested in a 6‐year longitudinal study of 171 community‐dwelling older adults (age range = 64–90 years). Hierarchical linear models showed that dispositional optimism protected relatively young participants from exhibiting elevations in depressive symptoms over time, but that these benefits became increasingly reduced among their older counterparts. Moreover, the findings showed that an age‐related association between optimism and depressive symptoms was observed particularly during periods of enhanced, as compared to reduced, stress. These results suggest that dispositional optimism protects emotional well‐being during the early phases of older adulthood, but that its effects are reduced in advanced old age.     

No Retrieval-Induced Forgetting Under Stress

ABSTRACT— Stress affects memory, yet no study has investigated the effects of stress on memory inhibition: Remembering not only facilitates later recall, but also inhibits retrieval of related material, a phenomenon known as retrieval-induced forgetting. We investigated the effects of stress on this mechanism, which is thought to adaptively guide memory selection. Participants learned categorized lists and were then exposed to either a psychosocial laboratory stressor or a cognitively challenging control treatment. They then actively retrieved parts of the previously learned material. Finally, memory for all initially learned items was tested. In the stress group, unlike in the control group, intervening retrieval practice did not impair final recall. Moreover, salivary cortisol levels increased and psychological well-being decreased in the stress group only. Thus, psychosocial stress abolishes retrieval-induced forgetting. This effect may result from stress-induced hormone release from the hypothalamic-pituitary-adrenal (HPA) axis and may have implications for educational, legal, and clinical issues.     

Nachsicht Oder üble Nachrede? Putnam und das Problem der Theoriendynamik

The article deals with problems of incommensurability and meaning change in thecontext of scientific dynamics. Its main topic is a proposal made by Putnam basedon his version of the principle of charity. It is shown that this proposal does not workas a general principle for the understanding of theory change, for it leads in some cases to an unconvincing interpretation of now discarded theories and is even uncharitable. So it could be polemically described as a kind of defamation ('üle Nachrede') of these theories. This will be demonstrated in two case studies. The first one sketches the development of economic value theory, while the second deals with the development of the concept of probability.     

The Public Has to Define Itself

In the article texts by John Dewey, JürgenHabermas and Richard Rorty are discussed in thelight of different meanings of the Public. Thisis done by discussing foundational andnon-foundational claims on a philosophy ofpragmatism and democracy, and by looking atdifferent meanings of intersubjectivity. Onecrucial difference I am pointing at, is thatwhile Dewey's intersubjectivity is stemmingfrom philosophical arguments as well aspolitical, Habermas's intersubjectivity isrestricted to the level of (an almostscientific) philosophical abstractargumentation without any concrete language ofpolitics. When it comes to Rorty I stress thathe is far closer than Habermas to Dewey'spragmatism, especially his ambition to includethe specific individuals and to stressindividuality in a philosophy of communicationand public conduct.     

A meta-analysis of 25 years of mood-creativity research: hedonic tone, activation, or regulatory focus?

This meta-analysis synthesized 102 effect sizes reflecting the relation between specific moods and creativity. Effect sizes overall revealed that positive moods produce more creativity than mood-neutral controls (r= .15), but no significant differences between negative moods and mood-neutral controls (r= -.03) or between positive and negative moods (r= .04) were observed. Creativity is enhanced most by positive mood states that are activating and associated with an approach motivation and promotion focus (e.g., happiness), rather than those that are deactivating and associated with an avoidance motivation and prevention focus (e.g., relaxed). Negative, deactivating moods with an approach motivation and a promotion focus (e.g., sadness) were not associated with creativity, but negative, activating moods with an avoidance motivation and a prevention focus (fear, anxiety) were associated with lower creativity, especially when assessed as cognitive flexibility. With a few exceptions, these results generalized across experimental and correlational designs, populations (students vs. general adult population), and facet of creativity (e.g., fluency, flexibility, originality, eureka/insight). The authors discuss theoretical implications and highlight avenues for future research on specific moods, creativity, and their relationships.     

Time course and efficiency of protein synthesis inhibition following intracerebral and systemic anisomycin treatment

Since its discovery in the 1960s, anisomycin has been used for studying the impact of protein synthesis for manifold cerebral processes such as long-term plastic changes after learning. The common limitation of nearly all pharmacological experiments, including anisomycin treatment, is to precisely verify the affected brain regions. Here we illustrate anisomycin effects on protein synthesis in distinct brain regions of mice (C57BL/6JOlaHsd), revealing differences between three modes of anisomycin application (subcutaneous, s.c.; intraperitoneal, i.p.; local microinfusions into the hippocampus). Our method is based on inhibition of the incorporation of the radioactively-labelled amino acids [(35)S]-Methionine/Cysteine into newly synthesised proteins. Washing the brain slices before autoradiography removes pools of amino acids, which have not been incorporated into newly synthesised proteins, thus, illustrating pure protein synthesis. By comparing different routes of systemic anisomycin application (i.p. versus s.c.; 150 mg/kg) it became evident that the effect of i.p. injection of anisomycin is fully reversed after 6 h, whereas s.c. injection is inhibiting protein synthesis in the hippocampus even 9 h after application. Local microinfusions of anisomycin into the hippocampus were shown to have long-lasting effects as well, which reversed as late as 9 h after injection. The diffusion of anisomycin was maximal at 3 h after injection and more precisely confined to the intended area using a lower dose (20 microg/site) instead of the commonly used dose of 62.5 microg/site. The broad time window of anisomycin action, as revealed in our study, has to be considered, if it comes to the interpretation of time course studies within the context of protein synthesis-dependent processes.     

Health-engagement control strategies and 2-year changes in older adults' physical health

This study examined the associations between older adults' daily physical symptoms (e.g., chest pain or difficulty breathing) and 2-year changes in chronic health problems (e.g., cardiovascular disease or cancer) and in functional problems (e.g., difficulty dressing or moving around at home). We reasoned that these associations depend on a person's active control processes aimed at counteracting physical health problems (i.e., health-engagement control strategies, or HECS). In particular, we hypothesized that high levels of HECS buffer the adverse effect of daily physical symptoms on increases in chronic and functional health problems. We found that daily physical symptoms were associated with declines in chronic and functional health among older adults who were not engaged in addressing their health problems, but not among their counterparts who reported high levels of HECS. These findings suggest that active control strategies play an important role in the maintenance of older adults' physical health.     

Emotional irritation before mental stress is associated with enhanced peripheral norepinephrine

Research suggests equivocal findings on associations of catecholamines and mood. Our study investigated the associations of emotional state, blood pressure and catecholamines in 55 healthy males undergoing mental stress. We especially checked the reported link between norepinephrine (NE) and emotional irritation. Blood pressure (SBP, DBP) and heart rate (HR) were continuously monitored. NE and epinephrine (EPI) were measured before, after, and 20 minutes after stress. Participants were divided into irritated versus non-irritated and anxious versus non-anxious subjects by median split on their baseline questionnaires. The task elicited significant cardiovascular, hormonal, and psychological stress responses. NE levels were significantly correlated with irritation before stress. Irritated subjects showed significantly higher DBP and NE than non-irritated subjects. The higher NE and DBP levels in the irritated participants suggest detrimental psycho-physiological interrelations promoting the development of stress-mediated cardiovascular diseases. Heightened emotional irritation before stress may be regarded as a psychological risk factor.     

The interpersonal effects of emotions in negotiations: a motivated information processing approach

Three experiments tested a motivated information processing account of the interpersonal effects of anger and happiness in negotiations. In Experiment 1, participants received information about the opponent's emotion (anger, happiness, or none) in a computer-mediated negotiation. As predicted, they conceded more to an angry opponent than to a happy one (controls falling in between), but only when they had a low (rather than a high) need for cognitive closure. Experiment 2 similarly showed that participants were only affected by the other's emotion under low rather than high time pressure, because time pressure reduced their degree of information processing. Finally, Experiment 3 showed that negotiators were only influenced by their opponent's emotion if they had low (rather than high) power. These results support the motivated information processing model by showing that negotiators are only affected by their opponent's emotions if they are motivated to consider them.