Motives matter more with age: Adult age differences in response to sociomoral violations.

Moral judgments and emotional reactions to sociomoral violations are heavily impacted by a perpetrator's intentions and desires, which pose a threat to social harmony. Given that older adults are more motivated to maintain interpersonal harmony relative to younger adults, older adults may be more reactive to malicious desires. In three studies, we investigated adult age differences in moral judgments and emotional reactions to sociomoral violations. In all studies, participants read scenarios in which a perpetrator either (a) desired to harm another but nothing happened, or (b) harmed another accidentally without malicious desire. Study 2 incorporated additional scenarios designed to evoke anger and disgust without explicitly implicating another person to evaluate whether age differences emerge only when sociomoral violations against another are salient. In Study 3, we examined the combined effects of malicious desires and harmful outcomes by including scenarios in which (a) harmful desires were coupled with harmful outcomes, and (b) benign desires were coupled with benign outcomes. Predominantly across the studies, older adults judged perpetrators who desired to harm another more harshly but judged perpetrators who accidentally harmed another more leniently than younger adults. Emotional reactions generally corresponded with the differences in judgments. Taken together, this work suggests that desires more strongly impact older relative to younger adults' judgments and emotional reactions in sociomoral contexts. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Left- and Right-Leaning News Organizations Use Negative Emotional Content and Elicit User Engagement Similarly.

Negativity has historically dominated news content; however, little research has examined how news organizations use affect on social media, where content is generally positive. In the current project we ask a few questions: Do news organizations on Twitter use negative or positive language and which type of affect garners more engagement on social media? Does the political orientation of news organizations impact the affect expressed and engagement tweets receive on social media? The goal of this project is to examine these questions by investigating tweets of 24 left- and 20 right-leaning news organizations (140,358 tweets). Results indicated that negative affect was expressed more than positive affect. Additionally, negativity predicted engagement with news organizations' tweets, but positivity did not. Finally, there were no differences in affect between left- and right-leaning political orientations. Overall, it appears that for news organizations, negativity is more frequent and more impactful than positivity. Supplementary Information: The online version contains supplementary material available at 10.1007/s42761-021-00046-w.

The Appraisal Approach to Aging and Emotion: An Integrative Theoretical Framework.

To advance our understanding of how emotional experience changes across the adult life span, we propose an integrative theoretical framework: the appraisal approach to aging and emotion (AAAE). AAAE posits that (a) age-related cognitive, motivational, and physical changes fundamentally change the appraisal system in certain ways, and that (b) older adults often deploy appraisal processes in different ways relative to their younger counterparts. As such, we hypothesize that these age-related changes to the appraisal process underlie the finding that older and younger adults tend to experience different emotions. In this paper we integrate findings from the aging literature with appraisal theory, grounding AAAE in theoretical and empirical work relevant to the relationship between aging and appraisal processes. Using our theoretical framework, it is possible to identify critical points of investigation for aging and emotion researchers to further develop our understanding of the proximal-level determinants of age differences in emotion.

A Synthetic Biology Approach Using Engineered Bacteria to Detect Perfluoroalkyl Substance (PFAS) Contamination in Water.

INTRODUCTION: Per- and polyfluoroalkyl substances (PFAS) are a class of synthetic compounds used industrially for a wide variety of applications. These PFAS compounds are very stable and persist in the environment. The PFAS contamination is a growing health issue as these compounds have been reported to impact human health and have been detected in both domestic and global water sources. Contaminated water found on military bases poses a potentially serious health concern for active duty military, their families, and the surrounding communities. Previous detection methods for PFAS in contaminated water samples require expensive and time-consuming testing protocols that limit the ability to detect this important global pollutant. The main objective of this work was to develop a novel detection system that utilizes a biological reporter and engineered bacteria as a way to rapidly and efficiently detect PFAS contamination. MATERIALS AND METHODS: The United States Air Force Academy International Genetically Engineered Machine team is genetically engineering Rhodococcus jostii strain RHA1 to contain novel DNA sequences composed of a propane 2-monooxygenase alpha (prmA) promoter and monomeric red fluorescent protein (mRFP). The prmA promoter is activated in the presence of PFAS and transcribes the mRFP reporter. RESULTS: The recombinant R. jostii containing the prmA promoter and mRFP reporter respond to exposure of PFAS by activating gene expression of the mRFP. At 100 µM of perfluorooctanoic acid, the mRFP expression was increased 3-fold (qRT-PCR). Rhodococcus jostii without exposure to PFAS compounds had no mRFP expression. CONCLUSIONS: This novel detection system represents a synthetic biology approach to more efficiently detect PFAS in contaminated samples. With further refinement and modifications, a similar system could be readily deployed in the field around the world to detect this critical pollutant.

Getting to the Heart of the Matter in Later Life: The Central Role of Affect in Health Message Framing.

BACKGROUND AND OBJECTIVES: Adopting healthy behaviors is often influenced by message framing; gain-framed messages emphasize the benefits of engaging in a behavior, whereas loss-framed messages highlight the consequences of not engaging in a behavior. Research has begun to uncover the underlying affective pathways involved in message framing. In the current study, we examined the role of affect in message framing to encourage exercise program enrollment among older adults. RESEARCH DESIGN AND METHODS: We mailed flyers to 126 volunteers assigned to a gain- or loss-framed condition and measured their affective reactions to the flyer and enrollment intentions. After the call, participants had the opportunity to contact us to enroll. RESULTS: Gain versus loss framing led to more positive affect toward the flyer, which predicted intentions and enrollment effort. In indirect effect analyses, frame indirectly influenced intentions and enrollment effort via positive affect. DISCUSSION AND IMPLICATIONS: Although message framing plays an indirect role in influencing behavior, affect plays a central role.

Reactive, Agentic, Apathetic, or Challenged? Aging, Emotion, and Coping During the COVID-19 Pandemic.

BACKGROUND AND OBJECTIVES: Advanced age is generally associated with improved emotional well-being, but the coronavirus 2019 pandemic unleashed a global stressor that gravely threatened the physical well-being and ostensibly challenged the emotional well-being of older adults disproportionately. The current study investigated differences in emotional experiences and coping strategies between younger and older adults during the pandemic, and whether these differences were accounted for by age differences in appraisal of the pandemic. RESEARCH DESIGN AND METHODS: We asked younger (n = 181) and older (n = 176) adult participants to report their stress, appraisals of the pandemic, emotions, and the ways in which they were coping with the pandemic. RESULTS: Results indicated that older adults experienced less stress and less negative affect and used greater problem-focused coping and less avoidant coping in response to the pandemic than younger adults. Furthermore, age differences in affect and coping were partially accounted for by age differences in appraisals of the pandemic. DISCUSSION AND IMPLICATIONS: Despite their objectively higher risk of illness and death due to the pandemic, older adults experienced less negative affect and used more agentic coping strategies than younger adults.

Positivity helps the medicine go down: Leveraging framing and affective contexts to enhance the likelihood to take medications.

Affect can influence judgments and decision-making in multiple ways. One way is through (a) integral affect, or affect related to the choice at hand, and another way is through (b) incidental affect, or affect unrelated to the choice at hand. Research suggests integral affect influences risk-related decision-making, especially in the context of risky choice framing. However, the role of affect in other forms of framing (e.g., attribute framing) has received little attention. We examined how integral affect (Study 1) along with incidental affect (Study 2) can alter perceptions of risk and likelihood to take hypothetical medications. Participants read pamphlets about medications with unique side effects presented as a gain (e.g., 86% of people who took this medication did not experience nausea) or loss (e.g., 14% of people who took this medication did experience nausea). Study 2 extended Study 1 by manipulating incidental affect through positive, neutral, and negative affective contexts to examine its impact on subsequent evaluations of framed information. Studies 1 and 2 measured positive and negative feelings about medications, risk perceptions, and likelihood of taking medications. Across both studies, gain-framed attributes led to more positive integral affect, subsequently increasing likelihood to take medications, whereas loss-framed attributes led to more negative feelings and increased perceived riskiness of medications. Study 2 found that positive affective contexts indirectly led to an increased likelihood to take medication by increasing positive feelings about the medications. Taken together, leveraging positivity through gain frames and positive contexts could improve adherence to medication plans. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Paths to positivity: the relationship of age differences in appraisals of control to emotional experience.

Evidence suggests that older adults experience greater emotional well-being compared to younger adults. Appraisal theories of emotion posit that differences in emotional experience are the result of differences in appraisal. As such, age differences in appraisal may relate to age differences in emotion. To investigate this, the present study focused on appraisals of control. Research suggests that losses of control lead to greater negative affect. Therefore, older adulthood was predicted to be associated with increased appraisal of self-control and less negative affect. To investigate this idea, we used an emotionally ambiguous scenario paradigm. Older and younger participants read fourteen ambiguous scenarios, imaging themselves as the main character. After each scenario, participants appraised the scenarios on three different control dimensions: self-, other-, and circumstantial-control. Afterward, they rated their feelings toward the scenarios on seven different emotional states. The results showed that compared to younger adults, older adults appraised more self-control relative to other- and circumstantial-control, and also experienced less negative affect in response to the scenarios. Importantly, in a mediation analysis, self-control relative to other-control explained age differences in emotional reactions toward the scenarios. This finding reflects the importance of considering the role of appraisal in age differences in emotional experience.

The sure thing: The role of integral affect in risky choice framing.

When faced with a decision, certain aspects of the decision itself shape our affective responses to choice options, which, in turn, influence our choices. These integral affective influences manifest as immediate feelings about choice options as well as the feelings that we anticipate we will feel after certain potential outcomes. We examined whether the effect of framing on risk taking can be explained through the mediating roles of immediate and anticipated affect. Two experiments were conducted using a gambling task. On each trial, participants were endowed a sum of money (e.g., $25) then presented with a choice between a sure option (leaving them with a portion of the initial endowment) and a gamble option (that could result in either keeping or losing the entire endowment). The sure option was framed differently across two within-participant conditions: as a gain (keep $20 from $25) or loss (lose $5 from $25). Experiment 1 examined whether immediate feelings toward choice options explain how framing the sure option as a loss versus a gain increases risk taking. Experiment 2 examined whether immediate and/or anticipated affect explain how framing guides risk taking. We found that the tendency to take risks to avoid sure losses was explained by immediate (not anticipated) affective evaluations of the sure option only. Individuals tended to take more risks when faced with sure losses due to greater negative immediate feelings that were evoked by sure losses relative to sure gains. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Asymmetric Response of Costa Rican White-Breasted Wood-Wrens (Henicorhina leucosticta) to Vocalizations from Allopatric Populations.

Divergence in song between allopatric populations can contribute to premating reproductive isolation in territorial birds. Song divergence is typically measured by quantifying divergence in vocal traits using audio recordings, but field playback experiments provide a more direct way to behaviorally measure song divergence between allopatric populations. The White-breasted Wood-Wren (Henicorhina leucosticta; hereafter "WBWW") is an abundant Neotropical species with four mitochondrial clades (in Central America, the Darién, the Chocó and the Amazon) that are deeply divergent (~5-16% sequence divergence). We assessed the possibility that the WBWW as currently defined may represent multiple biological species by conducting both statistical analysis of vocal characters and field playback experiments within three clades (Central America, Chocó and Amazon). Our analysis of vocal traits revealed that Central American songs overlapped in acoustic space with Chocó songs, indicating vocal similarity between these two populations, but that Central American songs were largely divergent from Amazonian songs. Playback experiments in the Caribbean lowlands of Costa Rica revealed that Central American WBWWs typically responded aggressively to songs from the Chocó population but did not respond to playback of songs from the Amazonian population, echoing the results of the vocal trait analysis. This marked difference in behavioral response demonstrates that the songs of Central American and Amazonian WBWWs (but not Central American and Chocó WBWWs) have diverged sufficiently that Central American WBWWs no longer recognize song from Amazonian WBWWs as a signal to elicit territorial defense. This suggests that significant premating reproductive isolation has evolved between these two populations, at least from the perspective of the Central American population, and is consistent with the possibility that Central American and Amazonian populations represent distinct biological species. We conclude by advocating for the further use of field playback experiments to assess premating reproductive isolation (and species limits) between allopatric songbird populations, a situation where behavioral systematics can answer questions that phylogenetic systematics cannot.

Use of an implantable needle guide to access difficult or impossible to cannulate arteriovenous fistulae using the buttonhole technique.

PURPOSE: The aim of this work was to assess the safety and efficacy of the VWING Vascular Needle Guide to assist in cannulation of difficult or impossible to access fistulae using the buttonhole cannulation technique. METHODS: VWING devices were surgically implanted into patients with difficult to access fistulae. A nondevice site and a device site were used to access the fistula and perform dialysis over a six month period. The device site utilized the buttonhole cannulation technique. The performance of each access site was recorded. RESULTS: VWING devices were implanted in nine patients. A total of 387 cannulations took place over 1367 study days. The device site was successfully used 94% of the time compared to 77% for the nondevice site. Cannulation success was comparable between the device and nondevice sites. Ease of insertion, pain during insertion and complication rates were also comparable. No interventions were required at the device site to maintain access compared with four interventions for the nondevice access site. CONCLUSIONS: The VWING performed as intended by facilitating required repeated access to the vascular system and access for hemodialysis treatment. The study has demonstrated that the VWING is a potential solution for access to difficult to cannulate fistulae.