Cooperative breeding in birds typically occurs when offspring – usually males – delay dispersal from their natal group, remaining with the family to help rear younger kin. Sex‐biased dispersal is thought to have evolved in order to reduce the risk of inbreeding, resulting in low relatedness between mates and the loss of indirect fitness benefits for the dispersing sex. In this review, we discuss several recent studies showing that dispersal patterns are more variable than previously thought, often leading to complex (...) genetic structure within cooperative avian societies. These empirical findings accord with recent theoretical models suggesting that sex‐ biased dispersal is neither necessary, nor always sufficient, to prevent inbreeding. The ability to recognize relatives, primarily by learning individual or group‐specific vocalizations, may play a more important role in incest avoidance than currently appreciated. (shrink)

How do children acquire beliefs from testimony? In this chapter, we discuss children's trust in testimony, their sensitivity to and use of defeaters, and their appeals to positive reasons for trusting what other people tell them. Empirical evidence shows that, from an early age, children have a tendency to trust testimony. However, this tendency to trust is accompanied by sensitivity to cues that suggest unreliability, including inaccuracy of the message and characteristics of the speaker. Not only are children sensitive to (...) evidence of unreliability, but they are also sensitive to the positive reasons a speaker may have for the reliability of their testimony. This evidence is discussed in relation to reductivist and non-reductivist viewpoints. (shrink)

Aphids display an abundance of adaptations that are not easily studied in existing model systems. Here we review the biology of a new genomic model system, the pea aphid, Acyrthosiphon pisum. We then discuss several phenomena that are particularly accessible to study in the pea aphid: the developmental genetic basis of polyphenisms, aphid–bacterial symbioses, the genetics of adaptation and mechanisms of virus transmission. The pea aphid can be maintained in the laboratory and natural populations can be studied in the field. (...) These properties allow controlled experiments to be performed on problems of direct relevance to natural aphid populations. Combined with new genomic approaches, the pea aphid is poised to become an important model system for understanding the molecular and developmental basis of many ecologically and evolutionarily relevant problems. BioEssays 28: 747–755, 2006. © 2006 Wiley Periodicals, Inc. (shrink)

Humans, animals, and the environment face a universal crisis: antimicrobial resistance. Addressing AR and its multi-disciplinary causes across many sectors including in human and veterinary medicine remains underdeveloped. One barrier to AR efforts is an inconsistent process to incorporate the plenitude of stakeholders about what AR is and how to stifle its development and spread—especially stakeholders from the animal agriculture sector, one of the largest purchasers of antimicrobial drugs. In 2019, The Wellcome Trust released Reframing Resistance: How to communicate about (...) antimicrobial resistance effectively, which proposed the need to establish a consistent and harmonized messaging effort that describes the AR crisis and its global implications for health and wellbeing across all stakeholders. Yet, Reframing Resistance does not specifically engage the animal agriculture community. This study investigates the gap between two principles recommended by Reframing Resistance and animal agriculture stakeholders. For this analysis, the research group conducted 31 semi-structured interviews with a diverse group of United States animal agriculture stakeholders. Participants reported attitudes, beliefs, and practices about a variety of issues, including how they defined AR and what entities the AR crisis impacts most. Exploration of Reframing Resistance’s Principle 2, “explain the fundamentals succinctly” and Principle 3, “emphasis that this is universal issue; it can affect anyone, including you” reveals disagreement in both the fundamentals of AR and consensus of “who” the AR crisis impacts. Principle 2 may do better to acknowledge that animal agriculture stakeholders espouse a complex array of perspectives that cannot be summed up in a single perspective or principle. As a primary tool to combat AR, behavior change must be accomplished first through outreach to stakeholder groups and understanding their perspectives. (shrink)

Mental and physical causes do not competedthe presence of one does not exclude the efficacy of the other. This point is obvious from the perspective of an interventionist theory of causation, but only when this theory gets its proper due. Doubts about the interventionist justification for concluding that there is both physical and mental causation, we have argued, rest on misunderstandings of interventionism. When looking to interventions to reveal causal structures, care must be taken to consider the right variable sets. (...) Jaegwon Kim’s diagram is the wrong starting point for interventionist causal reasoning because it includes variables that are related by non-causal relations in addition to causal relations. When it comes to understanding exclusion, less is more. (shrink)

The present study examined the distinct configurations, or profiles, taken by work fatigue dimensions among samples of military and civilian employees. We also tested profile similarity across these two samples of employees. In addition, this research documented the relations between the identified work fatigue profiles, one predictor variable, and a series of attitudinal outcomes among military employees. Six profiles of employees characterized by different levels of global and specific work fatigue were identified using latent profile analyses: Low Fatigue, Physically and (...) Emotionally Depleted, Emotionally Depleted, Globally and Mentally Depleted, Globally and Emotionally Depleted, and Balanced. In both samples, employees corresponding to the Balanced profile displayed average levels of global and specific work fatigue. However, this profile slightly differed across sample, as indicated by the observation of work fatigue levels that were slightly higher among the military than among civilians. Militaries’ perceptions of psychological empowerment were significantly related to their likelihood of belonging to all profiles. In turn, militaries’ career satisfaction, job satisfaction, and turnover intentions were also found to differ as a function of profile membership. (shrink)

Both unipolar and bipolar depression have been linked with impairments in executive functioning. In particular, mood symptom severity is associated with differences in common EF, a latent measure of general EF abilities. The relationship between mood disorders and EF is particularly salient in adolescence and young adulthood when the ongoing development of EF intersects with a higher risk of mood disorder onset. However, it remains unclear if common EF impairments have associations with specific symptom dimensions of mood pathology such as (...) blunted positive affect, mood instability, or physiological arousal, or if differences in common EF more broadly relate to what is shared across various symptom domains, such as general negative affect or distress. To address this question, bifactor models can be applied to simultaneously examine the shared and unique contributions of particular mood symptom dimensions. However, no studies to our knowledge have examined bifactor models of mood symptoms in relation to measures of common EF. This study examined associations between common EF and general vs. specific symptom dimensions using structural equation modeling in adolescents and young adults with varying severity of mood symptoms. A General Depression factor capturing shared variance across symptoms statistically predicted lower Common EF. Additionally, a factor specific to physiological arousal was associated with lower Common EF. Anhedonia-specific and Mania-specific factors were not significantly related to Common EF. Altogether, these results indicate that deficits in common EF are driven by, or reflect, general features of mood pathology that are shared across symptom dimensions but are also specifically associated with physiological arousal. (shrink)

Results: We analyzed 1,402 surveys and 15 in-depth interviews. Many (32%) CL participants reported greater difficulty refilling medications and a minority (14%) reported greater difficulty accessing HIV care during the pandemic. Most (99%) Opt4Mamas participants reported no difficulty refilling medications or accessing HIV/pregnancy care. Among the CL participants, older women were less likely (aOR = 0.95, 95% CI: 0.92–0.98) and women with more children were more likely (aOR = 1.13, 95% CI: 1.00–1.28) to report difficulty refilling medications. Only 2% of (...) CL participants reported greater difficulty managing FP and most (95%) reported no change in likelihood of using FP or desire to get pregnant. Qualitative analysis revealed three major themes: (1) adverse organizational/economic implications of the pandemic, (2) increased importance of pregnancy prevention during the pandemic, and (3) fear of contracting COVID-19. (shrink)

A major challenge in neuroscience is to understand what happens to a brain as it ages. Such insights could make it possible to distinguish between individuals who will undergo typical aging and those at risk for neurodegenerative disease. Over the last quarter century, thousands of human brain imaging studies have probed the neural basis of age-related cognitive decline. “Aging” studies generally enroll adults over the age of 65, a historical precedent rooted in the average retirement age of U.S. wage-earners. A (...) consequence of this research tradition is that it overlooks one of the most significant neuroendocrine changes in a woman’s life: the transition to menopause. The menopausal transition is marked by an overall decline in ovarian sex steroid production – up to 90% in the case of estradiol – a dramatic endocrine change that impacts multiple biological systems, including the brain. Despite sex differences in the risk for dementia, the influence that biological sex and sex hormones have on the aging brain is historically understudied, leaving a critical gap in our understanding of the aging process. In this Perspective, we highlight the influence that endocrine factors have on the aging brain. We devote particular attention to the neural and cognitive changes that unfold in the middle decade of life, as a function of reproductive aging. Next, we consider emerging evidence from animal and human studies that other endocrine factors occurring earlier in life (e.g. pregnancy, hormonal birth control use) also shape the aging process. Applying a women’s health lens to. (shrink)

The nurse perspective is critical in survey research investigating various aspects of healthcare services, staff, and patient outcomes. Researchers are responsible for ensuring that survey research utilizing survey questionnaires employs research methodological strategies that are aligned with the ethical principles of beneficence, respect for persons, and justice. The purpose of this paper is to discuss best practices to facilitate high-quality survey data collection for nurse survey participants. Recommendations are based on the fundamental ethical principles described in the Belmont Report, an (...) overview of evidence published in the current literature, and the application of practical knowledge. Literature searches conducted in PubMed resulted in the inclusion of over 50 articles from a wide range of disciplines. The results include actionable methods for researchers to consider and follow when conducting survey research utilizing nurse participants. This article serves as a resource to guide researchers through ethically responsible design, implementation, and reporting of nurse survey research. (shrink)

BackgroundReturning neuroimaging incidental findings may create a challenge to research participants’ health literacy skills as they must interpret and make appropriate healthcare decisions based on complex radiology jargon. Disclosing IF can therefore present difficulties for participants, research institutions and the healthcare system. The purpose of this study was to identify the extent of the health literacy challenges encountered when returning neuroimaging IF. We report on findings from a retrospective survey and focus group sessions with major stakeholders involved in disclosing IF.MethodsWe (...) surveyed participants who had received a radiology report from a research study and conducted focus groups with participants, parents of child participants, Institutional Review Board members, investigators and physicians. Qualitative thematic analyses were conducted using standard group-coding procedures and descriptive summaries of health literacy scores and radiology report outcomes are examined.ResultsAlthough participants reported high health literacy skills, 67 % did not seek medical care when recommended to do so; and many participants in the focus groups disclosed they could not understand the findings described in their report. Despite their lack of understanding, participants desire to have information about their radiology results, and the investigators feel ethically inclined to return findings.ConclusionsThe language in clinically useful radiology reports can create a challenge for participants’ health literacy skills and has the potential to negatively impact the healthcare system and investigators conducting imaging research. Radiology reports need accompanying resources that explain findings in lay language, which can help reduce the challenge caused by the need to communicate incidental findings. (shrink)

Social interactions typically involve movements of the body that become synchronized over time and both intentional and spontaneous interactional synchrony have been found to be an essential part of successful human interaction. However, our understanding of the importance of temporal dimensions of social motor synchrony in social dysfunction is limited. Here, we used a pendulum coordination paradigm to assess dynamic, process-oriented measures of social motor synchrony in adolescents with and without autism spectrum disorder (ASD). Our data indicate that adolescents with (...) ASD demonstrate less synchronization in both spontaneous and intentional interpersonal coordination. Coupled oscillator modeling suggests that ASD participants assembled a synchronization dynamic with a weaker coupling strength, which corresponds to a lower sensitivity and decreased attention to the movements of the other person, but do not demonstrate evidence of a delay in information transmission. The implication of these findings for isolating an ASD-specific social synchronization deficit that could serve as an objective, bio-behavioral marker is discussed. (shrink)

The present study aims to survey Chinese mental health professionals’ attitudes toward therapeutic confidentiality with adolescent patients in specific clinical situations, and compare Chinese adolescents’ and parents’ beliefs about when most mental health professionals would breach confidentiality. A sample of 36 mental health practitioners, 152 parents, and 164 adolescents completed a survey to assess their opinions about when confidentiality should be breached in 18 specific clinical situations. Nearly half of the parents and adolescents and 78% of the therapists in our (...) sample selected “yes” in response to the question of whether the principle of confidentiality applies to adolescents. However, 49% of parents indicated “no,” and 53% of adolescents indicated “not sure.” Compared to adolescents, parents were significantly more likely to believe that therapists would breach confidentiality for the high-breach-likelihood items. For the low-breach-likelihood items, adolescents and parents were significantly more likely than therapists to believe confidentiality should be breached. Results from this study provide data to inform the development, refinement, practical implementation, and communication of guidelines and recommendations specific to adolescents receiving psychotherapy in China. (shrink)

Volume 20, Issue 7, July 2020, Page 120-122.

BackgroundUniversal standards for bioethics, including the tenet of informed consent, should be upheld in the setting of humanitarian medical missions. The obstacles to obtaining informed consent in the global health setting have been thoroughly discussed in the literature, but no studies have investigated these issues from the patient’s perspective. We sought to understand the patient’s experience of the consent process during a four-week surgical mission to Haiti.MethodsAll patients selected for surgery during a mission to Hinche, Haiti, were invited to participate (...) in a survey assessing communication between them and their physicians, their understanding of the surgical procedure, and their desire for information during the consent process. Complete data were collected from 55 patients.ResultsUnderstanding a basic explanation of surgery and the associated risks was important to 98% of Haitian surgical patients, and 96% reported the desire for extensive risk communication. All patients felt that they sho... (shrink)

Philosophers of science are well aware that theories are underdetermined by data. But what about the data? Scientific data are selected and processed representations or pieces of nature. What is useless context and what is valuable specimen, as well as how specimens are processed for study, are not obvious or predetermined givens. Instead, they are decisions made by scientists and other research workers, such as technicians, that produce different outcomes for the data. Vertebrate fossils provide a revealing case of this (...) data-processing, because they are embedded in rock that often matches the fossils’ color and texture, requiring an expert eye to judge where the fossil/context interface is. Fossil preparators then permanently define this interface by chiseling away the material they identify as rock. As a result, fossil specimens can emerge in multiple possible forms depending on the preparator’s judgment, skill, and chosen tools. A prepared fossil then is not yet data but potential data, following Leonelli’s relational framework in which data are defined as evidence that scientists have used to support a proposed theory. This paper draws on ethnographic evidence to assess how scientists overcome this underdetermination of specimens, as potential data, in addition to the underdetermination of theories and of data, to successfully construct specimen-based knowledge. Among other strategies, paleontology maintains a division of labor between data-makers and theory-makers. This distinction serves to justify the omission of preparators’ nonstandard, individualized techniques from scientific publications. This separation has benefits for both scientists and technicians; however, it restricts knowledge production by preventing scientists from understanding how the pieces of nature they study were processed into researchable specimens. (shrink)

Over the past decade, Canadian media coverage of street sex work has steadily increased. The majority of this interest pertains to graphic violence against street sex workers, most notably from Vancouver, British Columbia. In this article, the authors analyze newspaper coverage that appeared in western Canadian publications between 2006 and 2009. In theorizing the violence both depicted and perpetrated by newspapers, the authors propose an analytic framework capable of attending to the process of othering in all of its complexity. To (...) this end, the authors supplement a Foucauldian analysis of abjection by considering the work of Judith Butler along with Julia Kristeva's conceptualization of abjection. Using excerpts from western Canadian newspapers, the authors illustrate how the media's discursive practices function as triggers for the process of cultural abjection by inscribing street sex workers with images of defilement. The authors argue that newspaper coverage of street sex workers reinforces the inviolability of normalized life by constantly reiterating the horror reserved for abjected bodies. (shrink)

Osteoporosis, a disease of bone loss associated with aging and estrogen loss, can be crippling but is ‘silent’ prior to bone fracture. Despite its disastrous health effects, high prevalence, and enormous associated health care costs, osteoporosis lacked a universally accepted definition until 1992. In the 1980s, the development of more accurate medical imaging technologies to measure bone density spurred the medical community’s need and demand for a common definition. The medical community tried, and failed, to resolve these differing definitions several (...) times at consensus conferences and through published articles. These experts finally accepted a standard definition at an international consensus conference convened by the World Health Organization in 1992. The construction of osteoporosis as a disease of quantifiable risk diagnosed by medical imaging machines reflects contemporary trends in medicine, including the quantification of disease, the risk factor model, medical disciplinary boundaries, and global standardization of medical knowledge. (shrink)

The search for meaningful work has been of interest to researchers from a variety of disciplines for decades and seems to have grown even more recently. Much of the literature assumes that employees share a sense of what is meaningful in work and there isn’t much attention given to how and why meanings might differ. Researchers have not only called for more research studying demographic differences in definitions of meaning :77–90, 2014), but also more research utilizing mixed methods to study (...) psychological concepts like meaningful work Handbook of multimethod measurement in psychology, American Psychological Association, Washington, 2006). This study specifically examines differences across generational cohorts on their prioritization of sources of meaningful work through qualitative, in-depth interviews followed by a more generalizable, quantitative survey. Findings from the qualitative study show that generational cohorts define the meaning in their jobs differently, and they hold negative perceptions about the lack of desire for meaning in each of the other cohorts. Study 2 maps generational cohorts on the comprehensive model of meaningful work designed by Lips-Wiersma and Morris :491–511, 2009) to reveal that although there are some differences in prioritization of sources of meaningful work, all generational cohorts share similar desire to “develop and become themselves” when asked about their definitions of meaningful work. Implications and future research are discussed. (shrink)

Osteoporosis, a disease of bone loss associated with aging and estrogen loss, can be crippling but is 'silent' prior to bone fracture. Osteoporosis lacked a universally accepted definition until 1992. In the 1980s, the development of more accurate medical imaging technologies to measure bone density spurred the medical community's need and demand for a common definition. The medical community tried, and failed, to resolve these differing definitions several times at consensus conferences and through published articles. These experts finally accepted a (...) standard definition at an international consensus conference convened by the World Health Organization in 1992. The construction of osteoporosis as a disease of quantifiable risk diagnosed by medical imaging machines reflects contemporary trends in medicine, including the quantification of disease, the risk factor model, medical disciplinary boundaries, and global standardization of medical knowledge. (shrink)

PurposeThe ability to hear ourselves speak has been shown to play an important role in the development and maintenance of fluent and coherent speech. Despite this, little is known about the developing speech motor control system throughout childhood, in particular if and how vocal and articulatory control may differ throughout development. A scoping review was undertaken to identify and describe the full range of studies investigating responses to frequency altered auditory feedback in pediatric populations and their contributions to our understanding (...) of the development of auditory feedback control and sensorimotor learning in childhood and adolescence.MethodRelevant studies were identified through a comprehensive search strategy of six academic databases for studies that included real-time perturbation of frequency in auditory input, an analysis of immediate effects on speech, and participants aged 18 years or younger.ResultsTwenty-three articles met inclusion criteria. Across studies, there was a wide variety of designs, outcomes and measures used. Manipulations included fundamental frequency, formant frequency, frequency centroid of fricatives, and both fundamental and formant frequencies. Study designs included contrasts across childhood, between children and adults, and between typical, pediatric clinical and adult populations. Measures primarily explored acoustic properties of speech responses. Some studies additionally examined the association of these acoustic responses with clinical measures, and neural measures using electrophysiology and magnetic resonance imaging.ConclusionFindings indicated that children above 4 years generally compensated in the opposite direction of the manipulation, however, in several cases not as effectively as adults. Overall, results varied greatly due to the broad range of manipulations and designs used, making generalization challenging. Differences found between age groups in the features of the compensatory vocal responses, latency of responses, vocal variability and perceptual abilities, suggest that maturational changes may be occurring in the speech motor control system, affecting the extent to which auditory feedback is used to modify internal sensorimotor representations. Varied findings suggest vocal control develops prior to articulatory control. Future studies with multiple outcome measures, manipulations, and more expansive age ranges are needed to elucidate findings. (shrink)

We agree that promoting intergroup harmony system-justifying and identify several ways in which and stereotypes, superordinate identification, intergroup contact, and prejudice reduction techniques can undermine social change motivation by reinforcing system-justifying beliefs. This may but it also prevents individuals and groups from tackling serious social problems, including inequality and oppression.

One of the key criticisms of the ethical review process is the time taken to decision, and associated resource use. A key source of delay is that most submissions are required to respond to at leas...

Reading is one of the most common everyday activities, yet research elucidating how affective influence reading processes and outcomes is sparse with inconsistent results. To investigate this question, we randomly assigned participants (N = 136) to happiness (positive affect), sadness (negative affect), and neutral video-induction conditions prior to engaging in self-paced reading of a long, complex science text. Participants completed assessments targeting multiple levels of comprehension (e.g. recognising factual information, integrating different textual components, and open-ended responses of concepts from memory) (...) after reading and after a week-long delay. Results indicated that the Sadness (vs. Happiness) condition had higher comprehension scores, with the largest effects emerging for assessments targeting deeper levels comprehension immediately after reading. Eye-tracking analyses revealed that such benefits may be partly driven by sustained attentional focus over the 20-minute reading session. We discuss results with respect to theories on affect, cognition, and text comprehension. (shrink)

Human development takes place in a social context. Two pervasive sources of social information are faces and hands. Here, we provide the first report of the visual frequency of faces and hands in the everyday scenes available to infants. These scenes were collected by having infants wear head cameras during unconstrained everyday activities. Our corpus of 143 hours of infant-perspective scenes, collected from 34 infants aged 1 month to 2 years, was sampled for analysis at 1/5 Hz. The major finding (...) from this corpus is that the faces and hands of social partners are not equally available throughout the first two years of life. Instead, there is an earlier period of dense face input and a later period of dense hand input. At all ages, hands in these scenes were primarily in contact with objects and the spatio-temporal co-occurrence of hands and faces was greater than expected by chance. The orderliness of the shift from faces to hands suggests a principled transition in the contents of visual experiences and is discussed in terms of the role of developmental gates on the timing and statistics of visual experiences. (shrink)

The amygdala is a key brain area regulating responses to stress and emotional stimuli, so improving our understanding of how it is regulated could offer novel strategies for treating disturbances in emotion regulation. As we review here, a growing body of evidence indicates that the gut microbiota may contribute to a range of amygdala-dependent brain functions from pain sensitivity to social behavior, emotion regulation, and therefore, psychiatric health. In addition, it appears that the microbiota is necessary for normal development of (...) the amygdala at both the structural and functional levels. While further investigations are needed to elucidate the exact mechanisms of microbiota-to-amygdala communication, ultimately, this work raises the intriguing possibility that the gut microbiota may become a viable treatment target in disorders associated with amygdala dysregulation, including visceral pain, post-traumatic stress disorder, and beyond. Also see the video abstract here: https://youtu.be/O5gvxVJjX18 The amygdala plays a central role in regulating many aspects of behavior in rodents and humans, from pain responding to social interaction and psychiatric function. Accumulating evidence suggests microbiota-to-amygdala communication along the gut-brain axis is a key modulator of these amygdala-dependent behaviors, with critical implications for health and disease. (shrink)

Globally, one in eight people lacks access to potable water; more people die from unsafe drinking water than from all forms of violence, including war. A substantial body of research documents that the privatization of water – led by global financial institutions working in collusion with governments and corporations – does not lead to more people gaining access to safe water. In fact, the opposite is true: privatization leads to both higher cost and lower quality water. For the past century, (...) the dominant focus of transnational organizing has been “from the West to the rest,” and the frequent attention to movements in the global North has led to the neglect of transnational linkages between movements. Drawing on fieldwork conducted on three right to water movements that span three continents, this paper examines effortsto reclaim the water commons,and how struggles have been driven by grassroots movements demanding that democracy, transparency, and the human right to water are prioritized over corporate profit. As feminist scholars have pointed out, the “standpoint” offered by marginalized actors offers important insights into the operation of systems of power and the strategies of survival and resistance that less powerful actors adopt in order to survive and thrive. This paper explores how transnational movements around water and other basic rights engage with and learn from each other. (shrink)

The authors of the articles in this issue of The Journal of Medicine and Philosophy address a wide variety of topics, from definitions of disease to bioenhancement. Each author, however, draws out the importance of careful use of language. Over the years, philosophers of medicine and bioethicists have debated questions such as what qualifies something as a disease, whether disease language is evaluative, whether the term “person” encompasses more than just human beings, and what language ought to be used to (...) best convey complex information to patients. Among a great deal of disagreement on these topics, one thing emerges distinctly: that clarity and careful attention to language is paramount in medicine. The articles in this issue contribute to that conversation, presenting complex arguments and illustrative examples of why it is so important to use clear and well-defined terms in medicine, and of the reality-altering power that our language carries. (shrink)