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Health communicators are faced with the challenge that people can hesitate vaccines for different reasons. Our aim was to identify and describe the qualities of distinct COVID-19 and influenza vaccine-hesitancy subgroups to facilitate the development of tailored vaccine-hesitancy communication. In two studies, we used agglomerative hierarchical cluster analysis to identify COVID-19 (N = 554) and influenza (N = 539) vaccine-hesitancy subgroups in the general population based on nine vaccine hesitancy-related variables (intent to get vaccinated, perceived vaccine safety, perceived vaccine efficacy, perceived disease threat, perceived vaccination responsibility, perceived vaccination convenience, distrust in authorities, conspiracy mentality, and reliance on anecdotal testimonies). We identified and described six distinct COVID-19 vaccine-hesitancy subgroups (the Vaccination Positive, the Ambivalent, the Fearing Skeptic, the Unconvinced, the Constrained Skeptic, and the Vaccination Opponent), and three influenza vaccine-hesitancy subgroups (the Vaccination Positive, the Complacent, and the Vaccination Opponent), with different levels of hesitancy. We discuss the implications of the results for health communicators. Our results shed light on the (dis)similarities between people who hesitate COVID-19 and influenza vaccines and suggest that there is greater variety in hesitancy concerning COVID-19 vaccinations than influenza vaccinations. These findings can be used to design and test tailored vaccination messages.
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Vacunas contra la COVID-19 , COVID-19 , Vacunas contra la Influenza , Gripe Humana , Vacilación a la Vacunación , Humanos , Vacunas contra la Influenza/administración & dosificación , COVID-19/prevención & control , COVID-19/epidemiología , COVID-19/psicología , Femenino , Masculino , Adulto , Persona de Mediana Edad , Vacunas contra la COVID-19/administración & dosificación , Gripe Humana/prevención & control , Gripe Humana/epidemiología , Vacilación a la Vacunación/psicología , SARS-CoV-2/inmunología , Anciano , Vacunación/psicología , Adulto Joven , Adolescente , Encuestas y CuestionariosRESUMEN
Sexual compliance (i.e., consensually engaging in sex despite a lack of desire for it) is common in committed intimate relationships, but the consequences of compliance for the well-being of the individual and the relationship are poorly understood. We investigated the perceived consequences of sexual compliance and perceptions of factors contributing to negative/positive consequences by applying qualitative content analysis to free-text retrospective survey responses from 107 (mostly) Finnish adults. We identified five themes of personal consequences (emotions and mood, sexual experience, sexual desire, pressure and violations, and physical pain), four of relational consequences (relationship satisfaction, partner's response, relationship interaction, and value alignment), and nine of possible factors contributing to negative/positive consequences (communication, self-esteem, motives for sex, relationship factors, agency and self-knowledge, mental health and stress, psychological flexibility, societal norms, and past negative experiences). Perceived consequences varied widely across individuals, both in terms of whether any positive or negative consequences were experienced and whether compliance was perceived as improving or worsening specific domains of well-being. We discuss the themes identified in relation to previous theories of sexuality and intimate relationships and offer hypotheses that can be tested in future quantitative studies.
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Relaciones Interpersonales , Conducta Sexual , Parejas Sexuales , Humanos , Femenino , Masculino , Adulto , Conducta Sexual/psicología , Parejas Sexuales/psicología , Persona de Mediana Edad , Autoimagen , Satisfacción Personal , Estudios Retrospectivos , Adulto Joven , Finlandia , Investigación Cualitativa , Encuestas y CuestionariosRESUMEN
The increase in remote hearings after the COVID-19 pandemic presents an urgent need to examine how judges assess video-mediated witness and party statements compared with live statements. There is currently a limited body of research on this subject. As for the assessment itself, professionals within the judicial system sometimes believe they can detect deception based on visible cues such as body language and emotional expression. Research has, however, shown that lies cannot be detected based on such cues. The Finnish Supreme Court has also given rulings in accordance with the scientific literature. In this study, we used a survey to investigate how much importance a Finnish sample of district judges (N = 47) gave to several variables pertaining to the statement or the statement giver, such as body language and emotional expression. We also investigated the association between the judges' beliefs about the relevance of body language and emotional expression and their preference for live statements or statements via videoconference. The judges reported giving more importance to body language and emotional expression than legal psychology research and Finnish Supreme Court rulings would call for. Our results also indicated that there was a slight bias to assess live statements more favorably than statements given via videoconference, as well as a slight bias in favor of the injured party. More effort must be put into making judges and Supreme Courts aware of findings in legal psychology to avoid biases based on intuitive reasoning where it is contrary to scientific evidence.
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Anti-science attitudes can be resilient to scientific evidence if they are rooted in psychological motives. One such motive is trait reactance, which refers to the need to react with opposition when one's freedom of choice has been threatened. In three studies, we investigated trait reactance as a psychological motivation to reject vaccination. In the longitudinal studies (n = 199; 293), we examined if trait reactance measured before the COVID-19 pandemic was related to people's willingness to get vaccinated against COVID-19 up to 2 years later during the pandemic. In the experimental study (n = 398), we tested whether trait reactance makes anti-vaccination attitudes more resistant to information and whether this resistance can be mitigated by framing the information to minimize the risk of triggering state reactance. The longitudinal studies showed that higher trait reactance before the COVID-19 pandemic was related to lower willingness to get vaccinated against COVID-19. Our experimental study indicated that highly reactant individuals' willingness to vaccinate was unaffected by the amount and framing of the information provided. Trait reactance has a strong and durable impact on vaccination willingness. This highlights the importance of considering the role of trait reactance in people's vaccination-related decision-making.
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Studies on the efficacy of language treatment for multilingual people with post-stroke aphasia and its generalization to untreated languages have produced mixed results. We conducted a systematic review and a meta-analysis to examine within- and cross-language treatment effects and the variables that affect them. We searched PubMed, PsycINFO, CINAHL, and Google Scholar (February 2020; January 2023), identifying 40 studies reporting on 1573 effect sizes from 85 individuals. We synthesized effect sizes for treatment outcomes using a multi-level model to correct for multiple observations from the same individuals. The results showed significant treatment effects, with robust within-language treatment effects and weaker cross-language treatment effects. Age of language acquisition of the treatment language predicted within-language and cross-language effects. Our results suggest that treating multilingual people with aphasia in one language may generalize to their other languages, especially following treatment in an early-acquired language and a later-learned language that became the language of immersion.
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Afasia , Multilingüismo , Humanos , Lenguaje , Afasia/etiología , Afasia/terapia , Desarrollo del Lenguaje , Resultado del TratamientoRESUMEN
Objective This study investigated the reasons why pedohebephilic clients disclose their sexual attraction to children in therapy and the experiences associated with this decision among English-speaking samples. Method: The pre-registered online survey combined (1) quantitative correlational data of self-reported improvement, alliance, therapist reaction to disclosure, and the belief that mandatory reporting laws were in place, and (2) qualitative data about reasons for disclosure or no disclosure as well as perceived consequences. The sample consisted of pedohebephilic people who have been clients in therapy and have disclosed (n = 96) or not disclosed (n = 40). Results: While the disclosure and no disclosure groups did not differ in improvement or beliefs about mandatory reporting, those who had disclosed reported a stronger alliance. Clients who did not perceive the therapist's reaction as supportive reported less improvement than the no disclosure group. Thematic analysis of qualitative data identified three themes concerning motives for disclosing or not disclosing and a fourth regarding differential impacts of disclosure. Discussion: This study indicates that disclosing pedohebephilia does not in and of itself lead to improvement but is contingent on a therapist's reaction.
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Some men who have sex with men (MSM) having more casual sex and sexual partners is interpreted to be a sign of mental disorder and used to justify negative attitudes toward them by some. MSM may internalize this attitude causing internalized homophobia (IH). According to the sexual strategies theory, MSM having more casual sex is the result of differences between men's and women's sexual strategies and is unrelated to sexual orientation. We investigated whether this explanation would reduce IH and improve mental health in MSM. We recruited 255 Chinese MSM online using Wenjuanxing, Douban, Weibo, Tieba, and Blued and divided them using simple randomization into an experimental group (n = 77; sexual strategies explanation provided), an active control group (n = 99; minority stress explanation provided), and a control group (n = 79; no intervention) with pretest (N = 255); a 1 week post-test (n = 195); and a 1 month follow-up test (n = 170) of outcome measures. IH, mental distress (MD), sort-term mating orientation, and risky sexual behaviors were measured online. The data were analyzed by SPSS 28. IH was associated with MD while being married was associated with IH and sexual contact with women with both more IH and MD as were not being masculine and self-identifying as straight. The sexual strategies explanation reduced IH related to pathologizing sexual behaviors and high-risk sexual behaviors while the minority stress explanation reduced MD. Providing a sexual strategies explanation may be used to de-stigmatize casual sex among MSM.
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Homosexualidad Masculina , Minorías Sexuales y de Género , Humanos , Masculino , Femenino , Homosexualidad Masculina/psicología , Homofobia/psicología , Conducta Sexual/psicología , Hombres , ChinaRESUMEN
Introduction: Homophobic discrimination and stigmatization, especially from healthcare professionals, are important stressors for gay men. Homophobia may be partly rooted in seeing some gay men having casual sex and many sexual partners as a signal of mental problems. Sexual Strategies Theory (SST) suggests that such sexual behavior is a result of different sexual strategies men and women tend to adopt and is unrelated to sexual orientation per se. This study aimed to investigate (1) the effectiveness of providing an SST explanation for gay men's sexual behavior in reducing homophobia among both lay persons and healthcare professionals; (2) differences in homophobia between healthcare professionals and lay people and also between medical and non-medical professionals. Methods: The main analyses included 492 heterosexual participants recruited online via Chinese social media and sample services in 2021. Of these, 227 were healthcare professionals (128 medical, 99 non-medical) and 265 were lay people. The participants were randomly assigned into an experimental group given the SST explanation (n = 126), an active control group given a Minority Stress (MS) explanation (n = 184), and a control group (n = 182). After the manipulation, homophobia, knowledge about homosexuality, professional homophobic attitude, gay affirmative practice, and contact with gay men were assessed. Results: The results of factor analysis suggested dividing homophobia into Oppressing Homophobia (Oppressing HP) describing believing that gay men should have fewer rights and Pathologizing Homophobia (Pathologizing HP) describing believing that the sexual behavior of gay men is a signal of mental problem. Importantly, the SST explanation reduced Pathologizing HP while the MS explanation reduced Oppressing HP. Healthcare professionals reported more Oppressing HP than lay people, and medical professionals conducted less gay affirmative practice than non-medical professionals. Conclusion: An SST explanation can potentially reduce some aspects of homophobia among both healthcare professionals and lay people. Also, worryingly, Chinese healthcare professionals, especially medical professionals, reported more homophobia than lay individuals.
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Advantageous inequity aversion (i.e., the tendency to respond negatively to unfairness that benefits oneself) usually develops in 6-8-year-olds. However, little is known about the selection pressures that might have shaped this phenomenon. Using data collected from 120 4-8-year-old Finnish children, we tested two evolutionary explanations for the development of advantageous inequity aversion: reciprocal altruism (i.e., benefiting from sharing when the roles are likely reversed in the future) and inclusive fitness (i.e., benefiting from sharing with biological relatives that carry the same alleles). We first successfully replicated a previous experiment, showing that 6-8-year-olds display advantageous inequity aversion by preferring to throw away a resource rather than keep it for themselves. Here, this behavior was also displayed in 5-year-olds. Using a novel experiment, we then asked children to distribute five erasers between themselves, a sibling, a peer, and a stranger. That is, an equal distribution was only possible if throwing away one eraser. We found no support for advantageous inequity aversion being shaped by either inclusive fitness or reciprocal altruism. Future studies could investigate costly signaling and adherence to social norms to avoid negative consequences as ultimate explanations for advantageous inequity aversion.
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Altruismo , Conducta Social , Niño , Humanos , Preescolar , Afecto , Evolución Biológica , Grupo ParitarioRESUMEN
The current study sought to determine whether public perceptions of other vaccines and diseases than COVID-19 have been impacted by the COVID-19 pandemic. We longitudinally examined whether there had been a change from before the COVID-19 pandemic to during the pandemic in: (a) influenza vaccination behaviour and intentions; (b) the perceived benefit of childhood vaccines and influenza vaccines; (c) the perceived safety of childhood vaccines and influenza vaccines; (d) the perceived severity of measles and influenza; and (e) trust in healthcare professionals in two samples of Finnish adults (N = 205 in Study 1 and N = 197 in Study 2). The findings showed that during the pandemic, more people than before had received or wanted to receive the influenza vaccine. The respondents also believed that influenza was more dangerous during the pandemic and that vaccinations were safer and more beneficial. On the other hand, for childhood vaccines only perceived safety increased. Finally, in one of the studies, people had more confidence in medical professionals during the pandemic than they had before. Together, these findings imply a spillover of the COVID-19 pandemic on how people view other vaccines and illnesses.
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COVID-19 , Vacunas contra la Influenza , Gripe Humana , Adulto , Humanos , Gripe Humana/epidemiología , Gripe Humana/prevención & control , Pandemias/prevención & control , COVID-19/epidemiología , COVID-19/prevención & control , Vacunación , ActitudRESUMEN
Individually tailored vaccine hesitancy interventions are considered auspicious for decreasing vaccine hesitancy. In two studies, we measured self-reported format preference for statistical vs. anecdotal information in vaccine hesitant individuals, and experimentally manipulated the format in which COVID-19 and influenza vaccine hesitancy interventions were presented (statistical vs. anecdotal). Regardless of whether people received interventions that were in line with their format preference, the interventions did not influence their vaccine attitudes or vaccination intentions. Instead, a stronger preference for anecdotal information was associated with perceiving the material in both the statistical and the anecdotal interventions as more frustrating, less relevant, and less helpful. However, even if the participants reacted negatively to both intervention formats, the reactions to the statistical interventions were consistently less negative. These results suggest that tailoring COVID-19 and influenza vaccine hesitancy interventions to suit people's format preference, might not be a viable tool for decreasing vaccine hesitancy. The results further imply that using statistics-only interventions with people who hold anti-vaccination attitudes may be a less risky choice than using only anecdotal testimonies.
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COVID-19 , Vacunas contra la Influenza , Gripe Humana , Humanos , Autoinforme , Vacilación a la VacunaciónRESUMEN
Sex differences in short-term mating behaviors are well-documented in human sexuality research. Existing studies usually explain sex differences in sexual behaviors through differences in mating preferences, which is theoretically problematic. Using an agent-based model, we investigated the circumstances under which males' and females' differential preferences for short-term mating would result in sex differences in short-term mating behaviors. The model showed that when all individuals in a closed heterosexual population were considered, males and females had the same average number of short-term mating experiences and short-term mates even when males had stronger preferences for short-term mating. Males (vs. females) had a higher average number of both experiences and mates when analyses were limited to only heterosexual males and females who successfully participated in the mating pool (i.e., those with a non-zero number of short-term mating experiences). Moreover, when males (vs. females) had stronger preferences for short-term mating, gay males had a higher average number of experiences and mates compared to both lesbian females and heterosexual males. These results suggest that even when sex differences in mating preferences exist, the sex differences in short-term mating behaviors only occur among particular populations, or when males' preferences for short-term mating are not constrained by those of females. Suggestions for future research in human mating psychology and behaviors were provided.
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A series of recent studies have shown that the once-assumed cognitive advantage of bilingualism finds little support in the evidence available to date. Surprisingly, however, the view that bilingualism incurs linguistic costs (the so-called lexical deficit) has not yet been subjected to the same degree of scrutiny, despite its centrality for our understanding of the human capacity for language. The current study implemented a comprehensive meta-analysis to address this gap. By analyzing 478 effect sizes from 130 studies on expressive vocabulary, we found that observed lexical deficits could not be attributed to bilingualism: Simultaneous bilinguals (who acquired both languages from birth) did not exhibit any lexical deficit, nor did sequential bilinguals (who acquired one language from birth and a second language after that) when tested in their mother tongue. Instead, systematic evidence for a lexical deficit was found among sequential bilinguals when tested in their second language, and more so for late than for early second language learners. This result suggests that a lexical deficit may be a phenomenon of second language acquisition rather than bilingualism per se.
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Multilingüismo , Humanos , Lenguaje , Desarrollo del Lenguaje , VocabularioRESUMEN
When interacting with infants, humans often alter their speech and song in ways thought to support communication. Theories of human child-rearing, informed by data on vocal signalling across species, predict that such alterations should appear globally. Here, we show acoustic differences between infant-directed and adult-directed vocalizations across cultures. We collected 1,615 recordings of infant- and adult-directed speech and song produced by 410 people in 21 urban, rural and small-scale societies. Infant-directedness was reliably classified from acoustic features only, with acoustic profiles of infant-directedness differing across language and music but in consistent fashions. We then studied listener sensitivity to these acoustic features. We played the recordings to 51,065 people from 187 countries, recruited via an English-language website, who guessed whether each vocalization was infant-directed. Their intuitions were more accurate than chance, predictable in part by common sets of acoustic features and robust to the effects of linguistic relatedness between vocalizer and listener. These findings inform hypotheses of the psychological functions and evolution of human communication.
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Música , Voz , Humanos , Adulto , Lactante , Habla , Lenguaje , AcústicaRESUMEN
The behavioral immune system is considered to be a psychological adaptation that decreases the risk of infection. Research suggests that, in the current environment, this system can produce attitudes with negative health consequences, such as increased vaccine hesitancy. In three studies, we investigated whether two facets of the behavioral immune system-germ aversion (i.e., aversion to potential pathogen transmission) and perceived infectability (i.e., perceived susceptibility to disease)-predicted intentions to accept COVID-19 and influenza vaccination during the pandemic. The behavioral immune system mechanisms were measured before the COVID-19 pandemic in one study, and during the pandemic in two. In contrast to previous research, those with higher germ aversion during the pandemic perceived vaccines to be safer and had higher intentions to accept vaccination. Germ aversion before the pandemic was not associated with vaccination intentions. Individuals who perceived themselves as more susceptible to disease were slightly more willing to accept vaccination. We conjecture that high disease threat reverses the relationship between the behavioral immune system response and vaccination. As the associations were weak, individual differences in germ aversion and perceived infectability are of little practical relevance for vaccine uptake.
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To test the hypothesis that infant night waking is an adaptation to increase interbirth intervals (IBIs) (i.e., the time between a mother's consecutive births) by exhausting the mother, we made an initial attempt at investigating whether maternal sleep disturbance is associated with longer IBIs. We also explored whether postpartum depression symptoms mediated the association between maternal sleep disturbance and IBI length. We used retrospective self-reports from 729 mothers living in Finland. We conducted structural regressions separately for the mother's two first children at two different age intervals (0-1 and 1-3 years). Infant night waking was associated with maternal sleep disturbance (ß = .78-.84) and maternal sleep disturbance was associated with postpartum depression symptoms (ß = .69-.81). Postpartum depression symptoms were also associated with longer IBIs for the first child (ß = .23-.28). This result supports the notion that postpartum depression in and of itself could be viewed as adaptive for the offspring's fitness, and not just as an unintentional byproduct of the mother's sleep disturbance. Contrary to our prediction, maternal sleep disturbance was, however, associated with shorter IBIs for the first child (ß = -.22 to -.30) when including postpartum depression symptoms in the model. We discuss the potential role of social support as an explanation for this unexpected result.
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Depresión Posparto , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Depresión/epidemiología , Depresión Posparto/epidemiología , Femenino , Humanos , Lactante , Recién Nacido , Persona de Mediana Edad , Relaciones Madre-Hijo , Madres , Periodo Posparto , Estudios Retrospectivos , Sueño , Adulto JovenRESUMEN
BACKGROUND: We investigated if people's response to the official recommendations during the COVID-19 pandemic is associated with conspiracy beliefs related to COVID-19, a distrust in the sources providing information on COVID-19, and an endorsement of complementary and alternative medicine (CAM). METHODS: The sample consisted of 1325 Finnish adults who filled out an online survey marketed on Facebook. Structural regression analysis was used to investigate whether: 1) conspiracy beliefs, a distrust in information sources, and endorsement of CAM predict people's response to the non-pharmaceutical interventions (NPIs) implemented by the government during the COVID-19 pandemic, and 2) conspiracy beliefs, a distrust in information sources, and endorsement of CAM are related to people's willingness to take a COVID-19 vaccine. RESULTS: Individuals with more conspiracy beliefs and a lower trust in information sources were less likely to have a positive response to the NPIs. Individuals with less trust in information sources and more endorsement of CAM were more unwilling to take a COVID-19 vaccine. Distrust in information sources was the strongest and most consistent predictor in all models. Our analyses also revealed that some of the people who respond negatively to the NPIs also have a lower likelihood to take the vaccine. This association was partly related to a lower trust in information sources. CONCLUSIONS: Distrusting the establishment to provide accurate information, believing in conspiracy theories, and endorsing treatments and substances that are not part of conventional medicine, are all associated with a more negative response to the official guidelines during COVID-19. How people respond to the guidelines, however, is more strongly and consistently related to the degree of trust they feel in the information sources, than to their tendency to hold conspiracy beliefs or endorse CAM. These findings highlight the need for governments and health authorities to create communication strategies that build public trust.
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COVID-19 , Conocimientos, Actitudes y Práctica en Salud , Aceptación de la Atención de Salud , Adolescente , Adulto , Anciano , COVID-19/epidemiología , COVID-19/prevención & control , Vacunas contra la COVID-19/administración & dosificación , Terapias Complementarias , Femenino , Finlandia/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Aceptación de la Atención de Salud/estadística & datos numéricos , Confianza , Vacunación/psicología , Adulto JovenRESUMEN
BACKGROUND AND OBJECTIVES: As the mother-offspring relationship is central to human reproduction, postpartum depression symptoms are difficult to explain in evolutionary terms. We proposed that postpartum depression might arise as a result of evolutionary mother-offspring conflict over maternal investment, and investigated the association between postpartum depression symptoms, infant night waking, maternal sleep disturbance and breastfeeding frequency. METHODOLOGY: We conducted a cross-sectional analysis using survey responses at 6 months postpartum from 1598 Finnish mothers. We hypothesized that infant night waking at 6 months postpartum would be associated with postpartum depression symptoms, and that this association would be mediated by maternal sleep disturbance and a higher breastfeeding frequency. RESULTS: Infant night waking was moderately associated with postpartum depression symptoms, and this association was mediated by maternal sleep disturbance (R 2=0.09). Contrary to our prediction, we found that increased breastfeeding was associated with less postpartum depression symptoms. CONCLUSIONS AND IMPLICATIONS: We conclude that postpartum depression symptoms might partly be the result of increased maternal fatigue stemming from high offspring demands on maternal investment, but that this is not due to the metabolic strain from increased breastfeeding. Studying postpartum depression from the mother-offspring conflict perspective can potentially improve our understanding of the involved behavioral processes of both mother and offspring, and allow interventions designed to benefit the well-being of both parties. Lay Summary: We proposed that postpartum depression is due to an evolutionary conflict between mother and infant, where the infant tires the mother to delay the arrival of a sibling. We found a link between infant night waking and postpartum depression, mediated by the mother's sleep, but not by breastfeeding frequency.
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As studies indicate that people perceive COVID-19 as a threatening disease, the demand for a vaccine against the disease could be expected to be high. Vaccine safety concerns might nevertheless outweigh the perceived disease risks when an individual decides whether or not to accept the vaccine. We investigated the role of perceived risk of COVID-19 (i.e., perceived likelihood of infection, perceived disease severity, and disease-related worry) and perceived safety of a prospective vaccine against COVID-19 in predicting intentions to accept a COVID-19 vaccine. Three Finnish samples were surveyed: 825 parents of small children, 205 individuals living in an area with suboptimal vaccination coverage, and 1325 Facebook users nationwide. As points of reference, we compared the perceptions of COVID-19 to those of influenza and measles. COVID-19 was perceived as a threatening disease-more so than influenza and measles. The strongest predictor of COVID-19 vaccination intentions was trusting the safety of the potential vaccine. Those perceiving COVID-19 as a severe disease were also slightly more intent on taking a COVID-19 vaccine. Informing the public about the safety of a forthcoming COVID-19 vaccine should be the focus for health authorities aiming to achieve a high vaccine uptake.
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Over the past 10 years, Oosterhof and Todorov's valence-dominance model has emerged as the most prominent account of how people evaluate faces on social dimensions. In this model, two dimensions (valence and dominance) underpin social judgements of faces. Because this model has primarily been developed and tested in Western regions, it is unclear whether these findings apply to other regions. We addressed this question by replicating Oosterhof and Todorov's methodology across 11 world regions, 41 countries and 11,570 participants. When we used Oosterhof and Todorov's original analysis strategy, the valence-dominance model generalized across regions. When we used an alternative methodology to allow for correlated dimensions, we observed much less generalization. Collectively, these results suggest that, while the valence-dominance model generalizes very well across regions when dimensions are forced to be orthogonal, regional differences are revealed when we use different extraction methods and correlate and rotate the dimension reduction solution. PROTOCOL REGISTRATION: The stage 1 protocol for this Registered Report was accepted in principle on 5 November 2018. The protocol, as accepted by the journal, can be found at https://doi.org/10.6084/m9.figshare.7611443.v1 .