Anomaly in the relaxation dynamics close to the surface plasmon resonance

We propose an explanation for the anomalous behaviour observed in the relaxation dynamics of the differential optical transmission of noble-metal nanoparticles. Using the temperature dependences of the position and the width of the surface plasmon resonance, we obtain a strong frequency dependence in the time evolution of the transmission close to the resonance. In particular, our approach accounts for the slowdown found below the plasmon frequency. This interpretation is independent of the presence of a nearby interband transition which has been invoked previously. We therefore argue that the anomaly should also appear for alkaline nanoparticles.Comment: version published in EP

Taking charge of one's feelings: Sense of power and affect regulation

People who are good at regulating their feelings benefit from more desirable affective lives. Here we examine whether individual differences in chronic feelings of power are associated with regulatory efforts aimed at maintaining positive affect and ceasing negative affect. In Study 1, we found that people with a stronger (vs. weaker) sense of power were more inclined to cognitively re-frame (reappraise) and up-regulate (repair) their affective experiences, whilst also being less inclined to suppress their feelings. Drawing on affective experiences sampled repeatedly over a one-week period, in Study 2 we found that people with a stronger (vs. weaker) sense of power were more likely to cease their negative affect. However, a stronger (vs. weaker) sense of power was not associated with the likelihood to maintain positive affect. Together, the findings highlight a novel domain in which power may enhance self-regulation, and help explain how power differentials shape people’s affective and social lives

From grumpy to cheerful (and back): How power impacts mood in and across different contexts

Although lay intuition and some academic theories suggest that power increases variability in mood, the prevailing view in the literature is that power elevates mood—a view that is not consistently borne out in empirical data. To rectify these discrepancies, we conducted five studies examining the impact of high and low power on mood in, and across, contexts of differing valence (negative vs. neutral vs. positive). Drawing on 19,710 observations from 1,042 participants, we found that high (vs. medium/control) power elevated, and low (vs. medium/control) power dampened, individuals' mood at baseline/in neutral contexts and in positive contexts. However, neither high (vs. medium/control) power nor low (vs. medium/control) power modulated individuals' mood in negative contexts. Overall, high (vs. medium/control) power tended to increase, and low (vs. medium/control) power decreased variability in mood across contexts (the former effect was marginally significant). We discuss how these findings corroborate, but also qualify, lay intuition and social psychological theories of power

How long will it take? Power biases time predictions

People tend to underestimate the time it takes to accomplish tasks. This bias known as the planning fallacy derives from the tendency to focus attention too narrowly on the envisaged goal and to ignore additional information that could make predictions more accurate and less biased. Drawing on recent research showing that power induces attentional focus, four studies tested the hypothesis that power strengthens the tendency to underestimate future task completion time. Across a range of task domains, and using multiple operationalizations of power, including actual control over outcomes (Study 1), priming (Studies 2 and 3), and individual differences (Study 4), power consistently led to more optimistic and less accurate time predictions. Support was found for the role of attentional focus as an underlying mechanism for those effects. Differences in optimism, self-efficacy, and mood did not contribute to the greater bias in powerful individuals’ forecasts. We discuss the implications of these findings for institutional decision processes and occupational health

When subjective experiences matter: power increases reliance on ease of retrieval

Past research on power focused exclusively on declarative knowledge and neglected the role of subjective experiences. Five studies tested the hypothesis that power increases reliance on the experienced ease or difficulty that accompanies thought generation. Across a variety of targets, such as attitudes, leisure-time satisfaction, and stereotyping, and with different operationalizations of power, including priming, trait dominance, and actual power in managerial contexts, power consistently increased reliance on the ease of retrieval. These effects remained 1 week later and were not mediated by mood, quality of the retrieved information, or number of counterarguments. These findings indicate that powerful individuals construe their judgments on the basis of momentary subjective experiences and do not necessarily rely on core attitudes or prior knowledge, such as stereotypes

When smiles (and frowns) speak words: Does power impact the correspondence between self-reported affect and facial expressions?

Self-reported experiences are often poor indicators of outward expressions. Here we examine social power as a variable that may impact the relationship between self-reported affect and facial expressions. Earlier studies addressing this issue were limited by focusing on a single facial expression (smiling) and by using different, less sensitive methods that yielded mostly null results. Sampling, for the first time, self-reported affect repeatedly in response to different negative, neutral and positive stimuli, and measuring concurrent facial muscle activation via electromyography, we found that high power (vs. baseline) increased the correspondence between self-reported positive affect and smiling. There was also an indication that high power (vs. baseline) bolstered the association between self-reported negative affect and frowning but the effect did not pass more stringent criteria for significance (p ≤ .005) and was therefore deemed inconclusive. The prediction that low power (vs. baseline) decreases the correspondence between self-reported affect and smiling and frowning facial expressions was not supported. Taken together, it would appear that (high) power can impact the relationship between self-reported affect and facial expressions, but it remains to be seen whether this effect extends beyond smiling facial expressions

Power and Revenge

We took an individual differences approach to explain revenge tendencies in powerholders. Across four experimental studies, chronically powerless individuals sought more revenge than chronically powerful individuals following a high power episode (Studies 1 and 2), when striking a powerful pose (Study 3), and when making a powerful hand gesture (Study 4). This relationship vanished when participants were not exposed to incidental power. A meta-analysis revealed that, relative to a lack of power or a neutral context, exposure to incidental power increased vengeance amongst the chronically powerless and reduced vengeance amongst the chronically powerful. These findings add to previous research on relations between power and aggression, and underscore the role of individual differences as a determinant of powerholders' destructive responses

Social class and wellbeing among staff and students in higher education settings: Mapping the problem and exploring underlying mechanisms

Within Higher Education (HE), staff and students from lower social class backgrounds often experience poorer wellbeing than their higher social class counterparts. Previous research conducted outside educational contexts has linked social class differences in wellbeing with differences in the extent to which low and high social class individuals feel respected (i.e., status), in control (i.e., autonomy), and connected with others (i.e., inclusion). However, to our knowledge, there has been no research that has investigated those psychosocial needs within HE settings. Furthermore, inclusion, status and autonomy are correlated, yet little is known about how these psychosocial needs contribute to wellbeing simultaneously, and independently, of one another. To fill these gaps, we report the results of two studies; firstly with HE students (Study 1; N = 305), and secondly with HE staff (Study 2; N = 261). Consistently across studies, reports of poor wellbeing were relatively common and more than twice as prevalent amongst lower social class staff and students compared to higher social class staff and students. Inclusion, status and autonomy each made a unique contribution and accounted for the relationship between social class and wellbeing (fully amongst students, and partially amongst staff members). These relationships held across various operationalisations of social class and when examining a range of facets of wellbeing. Social class along with inclusion, status and autonomy explained a substantial 40% of the variance in wellbeing. The present research contributes to the literature exploring how social class intersects with psychosocial needs to impact the wellbeing of staff and students within HE

Taming the lion: How perceived worth buffers the detrimental influence of power on aggression and conflict

Contrary to conventional wisdom, there is little empirical evidence that elevated power, by default, fuels conflict and aggression. Instead, previous studies have shown that extraneous factors that decrease powerholders’ perceived worth, making powerholders feel inferior or disrespected, seem to be necessary to ‘unleash’ power’s dark side and trigger aggression and conflict. However, this past work has largely neglected that power boosts individuals’ perceptions of worth, and as such these variables are not independent. The present research sought to address this oversight, thereby providing a more nuanced account of how perceived worth stifles aggression and conflict tendencies in powerholders. Focusing on self-esteem (Study 1) and status (Study 2) as two interrelated facets of perceived worth, we report primary and secondary data indicating that perceived worth acts as buffer and counters aggression as well as more general conflict tendencies in powerholders. By providing evidence for a suppression effect, the present findings go beyond the moderations identified in prior work and demonstrate that perceptions of worth are critical to understanding the link between power on the one hand, and aggression and conflict on the other. We conclude by discussing the social regulatory function of perceived worth in hierarchical relations