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1.
PLoS One ; 18(4): e0283322, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37075009

RESUMO

The role of emotions and cognition in entrepreneurship and strategic decision-making research has thus far been relatively neglected. In this research, we investigate how anger and hope may influence managers' project retention decisions. While case studies can never test theories, our research aims to expose the Appraisal Tendency Framework (ATF) to empirical reality in a new context. A Palestinian research context characterized by extreme uncertainty is chosen as one that arguably amplifies the effects of high levels of emotion. Three businesses within a holding company were identified and twelve semi-structured interviews were conducted with managers responsible for strategic decision-making, with data analysed using Content and Thematic Analyses. The emotions of hope and anger were each independently found to be associated with project retention decisions. However, when hope and anger were experienced together, hope complemented a positive association between anger and retention. The AFT proposes that emotions with different valence (i.e., negative anger and positive hope) may be associated with corresponding thought processes (heuristic or systematic) and still result in similar behavioural outcomes. The findings also highlight implications of decision-making under uncertainty, for practitioners who may benefit from differentiating between the positive and negative influences of anger on decisions.


Assuntos
Tomada de Decisões , Medo , Medo/psicologia , Ira , Emoções , Incerteza
2.
Cogn Emot ; 36(4): 602-615, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35094648

RESUMO

Accurate perception of the emotional signals conveyed by others is crucial for successful social interaction. Such perception is influenced not only by sensory input, but also by knowledge we have about the others' emotions. This study addresses the issue of whether knowing that the other's emotional state is congruent or incongruent with their displayed emotional expression ("genuine" and "fake", respectively) affects the neural mechanisms underpinning the perception of their facial emotional expressions. We used a visual adaptation paradigm to investigate this question in three experiments employing increasing adaptation durations. The adapting stimuli consisted of photographs of emotional facial expressions of joy and anger, purported to reflect (in-)congruency between felt and expressed emotion, displayed by professional actors. A Validity checking procedure ensured participants had the correct knowledge about the (in-)congruency. Significantly smaller adaptation aftereffects were obtained when participants knew that the displayed expression was incongruent with the felt emotion, following all tested adaptation periods. This study shows that knowledge relating to the congruency between felt and expressed emotion modulates face expression aftereffects. We argue that this reflects that the neural substrate responsible for the perception of facial expressions of emotion incorporates the presumed felt emotion underpinning the expression.


Assuntos
Emoções , Expressão Facial , Ira , Humanos
3.
Cancer Treat Res Commun ; 28: 100445, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34425469

RESUMO

INTRODUCTION: Over half of the 1.5 million individuals globally who are diagnosed with colorectal cancer (CRC) present with stage II-III disease. Understanding clinician attitudes towards treatment for this group is paramount to contextualise real-world outcomes and plan future trials. The aim of this study was to assess clinician awareness of trials assessing the optimal duration of CRC adjuvant therapy, their attitudes towards shorter treatment and their self-reported practice. METHODS: A survey was developed using OnlineSurveys® and distributed to clinicians in April 2019, with a follow-up survey disseminated to a subset of respondents in August 2020. Microsoft Excel® and Stata® were used for analysis. RESULTS: 265 clinicians replied to the first survey, with the majority aware of findings from the International Duration Evaluation of Adjuvant Therapy collaboration and contributory trials. Practice change was greatest for patients under 70 with low-risk stage III CRC, with most uncertainty around using 3-months of doublet chemotherapy for high-risk stage II disease. In August 2020, clinicians (n = 106) were more likely to use 3-months of FOLFOX for low-risk stage III disease and 3-months of CAPOX for stage II disease compared to April 2019. There was no indication that the COVID-19 pandemic had enduring changes on treatment decisions beyond those made in response to trial evidence. DISCUSSION: Clinicians use a risk-stratified approach to treat CRC the adjuvant setting. Lower utilisation of doublet chemotherapy for older and stage II patients has affected the extent of trial implementation. Active dialogue regarding how trial results apply to these groups may improve consensus.


Assuntos
Ensaios Clínicos como Assunto , Neoplasias Colorretais/tratamento farmacológico , Padrões de Prática Médica , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , COVID-19 , Quimioterapia Adjuvante , Neoplasias Colorretais/patologia , Fluoruracila/uso terapêutico , Humanos , Leucovorina/uso terapêutico , Estudos Longitudinais , Oncologistas , Compostos Organoplatínicos/uso terapêutico , Guias de Prática Clínica como Assunto , Autorrelato , Inquéritos e Questionários , Fatores de Tempo
4.
Adapt Human Behav Physiol ; 3(4): 275-281, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-32010551

RESUMO

Although some researchers have suggested that the interaction between cortisol and testosterone predicts ratings of men's facial attractiveness, evidence for this pattern of results is equivocal. Consequently, the current study tested for a correlation between men's facial attractiveness and the interaction between their cortisol and testosterone levels. We also tested for corresponding relationships between the interaction between cortisol and testosterone and ratings of men's facial health and dominance (perceived traits that are correlated with facial attractiveness in men). We found no evidence that ratings of either facial attractiveness or health were correlated with the interaction between cortisol and testosterone. Some analyses suggested that the interaction between cortisol and testosterone levels may predict ratings of men's facial dominance, however, with testosterone being more closely related to facial dominance ratings among men with higher cortisol. Our results suggest that the relationship between men's facial attractiveness and the interaction between cortisol and testosterone is not robust.

5.
Horm Behav ; 87: 57-61, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-27810343

RESUMO

Behaviors that minimize exposure to sources of pathogens can carry opportunity costs. Consequently, how individuals resolve the tradeoff between the benefits and costs of behavioral immune responses should be sensitive to the extent to which they are vulnerable to infectious diseases. However, although it is a strong prediction of this functional flexibility principle, there is little compelling evidence that individuals with stronger physiological immune responses show weaker behavioral immune responses. Here we show that men with the combination of high testosterone and low cortisol levels, a hormonal profile recently found to be associated with particularly strong physiological immune responses, show weaker preferences for color cues associated with carotenoid pigmentation. Since carotenoid cues are thought to index vulnerability to infectious illnesses, our results are consistent with the functional flexibility principle's prediction that individuals with stronger physiological immune responses show weaker behavioral immune responses.


Assuntos
Comportamento de Escolha , Face , Imunidade Inata/fisiologia , Comportamento Sexual , Testosterona/fisiologia , Adolescente , Adulto , Comportamento/efeitos dos fármacos , Comportamento/fisiologia , Comportamento de Escolha/fisiologia , Sinais (Psicologia) , Feminino , Humanos , Imunidade Inata/efeitos dos fármacos , Masculino , Casamento/psicologia , Estimulação Luminosa , Comportamento Sexual/fisiologia , Testosterona/sangue , Adulto Jovem
6.
PLoS One ; 11(11): e0166855, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27875569

RESUMO

Feminine physical characteristics in women are positively correlated with markers of their mate quality. Previous research on men's judgments of women's facial attractiveness suggests that men show stronger preferences for feminine characteristics in women's faces when their own testosterone levels are relatively high. Such results could reflect stronger preferences for high quality mates when mating motivation is strong and/or following success in male-male competition. Given these findings, the current study investigated whether a similar effect of testosterone occurs for men's preferences for feminine characteristics in women's voices. Men's preferences for feminized versus masculinized versions of women's and men's voices were assessed in five weekly test sessions and saliva samples were collected in each test session. Analyses showed no relationship between men's voice preferences and their testosterone levels. Men's tendency to perceive masculinized men's and women's voices as more dominant was also unrelated to their testosterone levels. Together, the results of the current study suggest that testosterone-linked changes in responses to sexually dimorphic characteristics previously reported for men's perceptions of faces do not occur for men's perceptions of voices.


Assuntos
Percepção Auditiva/fisiologia , Saliva/metabolismo , Caracteres Sexuais , Testosterona/metabolismo , Voz , Adulto , Feminino , Humanos , Masculino
7.
J Vis ; 16(9): 9, 2016 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-27472496

RESUMO

When observing another individual's actions, we can both recognize their actions and infer their beliefs concerning the physical and social environment. The extent to which visual adaptation influences action recognition and conceptually later stages of processing involved in deriving the belief state of the actor remains unknown. To explore this we used virtual reality (life-size photorealistic actors presented in stereoscopic three dimensions) to see how visual adaptation influences the perception of individuals in naturally unfolding social scenes at increasingly higher levels of action understanding. We presented scenes in which one actor picked up boxes (of varying number and weight), after which a second actor picked up a single box. Adaptation to the first actor's behavior systematically changed perception of the second actor. Aftereffects increased with the duration of the first actor's behavior, declined exponentially over time, and were independent of view direction. Inferences about the second actor's expectation of box weight were also distorted by adaptation to the first actor. Distortions in action recognition and actor expectations did not, however, extend across different actions, indicating that adaptation is not acting at an action-independent abstract level but rather at an action-dependent level. We conclude that although adaptation influences more complex inferences about belief states of individuals, this is likely to be a result of adaptation at an earlier action recognition stage rather than adaptation operating at a higher, more abstract level in mentalizing or simulation systems.


Assuntos
Adaptação Fisiológica/fisiologia , Atenção/fisiologia , Sinais (Psicologia) , Movimentos Oculares/fisiologia , Fixação Ocular/fisiologia , Reconhecimento Visual de Modelos/fisiologia , Feminino , Humanos , Masculino , Projetos Piloto , Adulto Jovem
8.
Front Psychol ; 7: 693, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27242606

RESUMO

Accurate perception of an individual's identity and emotion derived from their actions and behavior is essential for successful social functioning. Here we determined the role of identity in the representation of emotional whole-body actions using visual adaptation paradigms. Participants adapted to actors performing different whole-body actions in a happy and sad fashion. Following adaptation subsequent neutral actions appeared to convey the opposite emotion. We demonstrate two different emotional action aftereffects showing distinctive adaptation characteristics. For one short-lived aftereffect, adaptation to the emotion expressed by an individual resulted in biases in the perception of the expression of emotion by other individuals, indicating an identity-independent representation of emotional actions. A second, longer lasting, aftereffect was observed where adaptation to the emotion expressed by an individual resulted in longer-term biases in the perception of the expressions of emotion only by the same individual; this indicated an additional identity-dependent representation of emotional actions. Together, the presence of these two aftereffects indicates the existence of two mechanisms for coding emotional actions, only one of which takes into account the actor's identity. The results that we observe might parallel processing of emotion from face and voice.

9.
Am J Hypertens ; 29(5): 560-7, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26310662

RESUMO

BACKGROUND: Greater ambulatory blood pressure variability (ABPV) is associated with end-organ damage and increased mortality. Age-related changes in the cardiovascular and autonomic nervous systems make age-associated increases in ABPV likely. Cross-sectional studies support this hypothesis, showing greater ABPV among older compared to younger adults. The only longitudinal study to examine changes in ABPV, however, found ABPV decreased over 5 years follow-up. This unexpected observation probably reflected the highly selected nature of the study participants. METHODS: In this longitudinal study, we assessed changes in ABPV over 10 years in a community-cohort of older people. In addition, we examined the extent to which ABPV was predicted by demographics, cardiovascular risk factors, and medication. Clinical examination and 24-hour ambulatory blood pressure monitoring were carried out at baseline and at 10 years follow-up in 83 people, median age 70 years. ABPV was calculated using SD and coefficient of variation (Cv). Three time periods were examined: daytime, nighttime, and 24 hours. RESULTS: Daytime and 24-hour, systolic and diastolic, SD, and Cv were significantly greater at follow-up than at baseline (P < 0.001 in all cases). Mean BP did not change. CONCLUSIONS: Multilevel modeling showed follow-up interval had a significant, positive effect on SD and Cv (P < 0.004), independent of age, sex, and medication.ABPV increased over a 10-year follow-up despite stable mean BP. ABPV may therefore be an additional target for treatment in older people. Future studies should examine what degree of ABPV is harmful and if control of ABPV reduces adverse outcome.


Assuntos
Envelhecimento , Monitorização Ambulatorial da Pressão Arterial , Pressão Sanguínea , Fatores Etários , Idoso , Ritmo Circadiano , Inglaterra , Feminino , Seguimentos , Humanos , Vida Independente , Estudos Longitudinais , Masculino , Modelos Estatísticos , Valor Preditivo dos Testes , Medição de Risco , Fatores de Risco , Fatores de Tempo
10.
Psychoneuroendocrinology ; 56: 29-34, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25796069

RESUMO

Red facial coloration is an important social cue in many primate species, including humans. In such species, the vasodilatory effects of estradiol may cause red facial coloration to change systematically during females' ovarian cycle. Although increased red facial coloration during estrus has been observed in female mandrills (Mandrillus sphinx) and rhesus macaques (Macaca mulatta), evidence linking primate facial color changes directly to changes in measured estradiol is lacking. Addressing this issue, we used a longitudinal design to demonstrate that red facial coloration tracks within-subject changes in women's estradiol, but not within-subject changes in women's progesterone or estradiol-to-progesterone ratio. Moreover, the relationship between estradiol and facial redness was observed in two independent samples of women (N = 50 and N = 65). Our results suggest that changes in facial coloration may provide cues of women's fertility and present the first evidence for a direct link between estradiol and female facial redness in a primate species.


Assuntos
Cor , Estradiol/metabolismo , Face , Pigmentação da Pele/fisiologia , Adolescente , Estradiol/análise , Feminino , Humanos , Estudos Longitudinais , Progesterona/análise , Progesterona/metabolismo , Saliva/química , Adulto Jovem
11.
PLoS One ; 9(10): e104415, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25349994

RESUMO

Although many studies have investigated the facial characteristics that influence perceptions of others' attractiveness and dominance, the majority of these studies have focused on either the effects of shape information or surface information alone. Consequently, the relative contributions of facial shape and surface characteristics to attractiveness and dominance perceptions are unclear. To address this issue, we investigated the relationships between ratings of original versions of faces and ratings of versions in which either surface information had been standardized (i.e., shape-only versions) or shape information had been standardized (i.e., surface-only versions). For attractiveness and dominance judgments of both male and female faces, ratings of shape-only and surface-only versions independently predicted ratings of the original versions of faces. The correlations between ratings of original and shape-only versions and between ratings of original and surface-only versions differed only in two instances. For male attractiveness, ratings of original versions were more strongly related to ratings of surface-only than shape-only versions, suggesting that surface information is particularly important for men's facial attractiveness. The opposite was true for female physical dominance, suggesting that shape information is particularly important for women's facial physical dominance. In summary, our results indicate that both facial shape and surface information contribute to judgments of others' attractiveness and dominance, suggesting that it may be important to consider both sources of information in research on these topics.


Assuntos
Face , Expressão Facial , Percepção Visual , Adolescente , Adulto , Face/anatomia & histologia , Feminino , Humanos , Julgamento , Masculino , Predomínio Social , Adulto Jovem
12.
Behav Res Methods ; 46(4): 1042-51, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24584971

RESUMO

We present a database of high-definition (HD) videos for the study of traits inferred from whole-body actions. Twenty-nine actors (19 female) were filmed performing different actions-walking, picking up a box, putting down a box, jumping, sitting down, and standing and acting-while conveying different traits, including four emotions (anger, fear, happiness, sadness), untrustworthiness, and neutral, where no specific trait was conveyed. For the actions conveying the four emotions and untrustworthiness, the actions were filmed multiple times, with the actor conveying the traits with different levels of intensity. In total, we made 2,783 action videos (in both two-dimensional and three-dimensional format), each lasting 7 s with a frame rate of 50 fps. All videos were filmed in a green-screen studio in order to isolate the action information from all contextual detail and to provide a flexible stimulus set for future use. In order to validate the traits conveyed by each action, we asked participants to rate each of the actions corresponding to the trait that the actor portrayed in the two-dimensional videos. To provide a useful database of stimuli of multiple actions conveying multiple traits, each video name contains information on the gender of the actor, the action executed, the trait conveyed, and the rating of its perceived intensity. All videos can be downloaded free at the following address: http://www-users.york.ac.uk/~neb506/databases.html. We discuss potential uses for the database in the analysis of the perception of whole-body actions.


Assuntos
Bases de Dados Factuais , Emoções/classificação , Expressão Facial , Postura , Comportamento Social , Confiança/psicologia , Gravação em Vídeo/estatística & dados numéricos , Adolescente , Adulto , Ira , Medo , Feminino , Felicidade , Humanos , Masculino , Movimento , Simulação de Paciente , Gravação em Vídeo/classificação , Adulto Jovem
13.
Vision Res ; 87: 30-4, 2013 Jul 19.
Artigo em Inglês | MEDLINE | ID: mdl-23727267

RESUMO

Face adaptation paradigms have been used extensively to investigate the mechanisms underlying the processing of several different facial characteristics including face shape, identity, view and emotional expression. Judgements of facial trustworthiness can also be influenced by visual adaptation; to date these (un)trustworthy face aftereffects have only been shown following adaptation to emotional expression and facial masculinity/femininity. In this study we assessed how exposure to trustworthy and untrustworthy faces influenced the perception of the trustworthiness of subsequent test faces. In a mixed factorial design experiment, we tested the influence of adaptation to female and male faces on the perception of subsequent female and male faces in both female and male observers. In female observers, we found that following adaptation to trustworthy and untrustworthy faces subsequent test faces appeared less like the adapting stimuli. Sex of the adapting and test faces did not have significant influence on these (un)trustworthy face aftereffects. In male observers, however, we found no significant influence of the effect of adaptation on the subsequent perception of face trustworthiness. The clear difference in the visual aftereffects induced in female and male observers indicates the operation of different mechanisms underlying the perception of facial trustworthiness, and future studies should investigate these mechanisms separately in female and male observers.


Assuntos
Adaptação Psicológica , Expressão Facial , Fatores Sexuais , Confiança , Percepção Visual/fisiologia , Adolescente , Adulto , Feminino , Humanos , Masculino , Estimulação Luminosa/métodos , Reconhecimento Psicológico , Adulto Jovem
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