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1.
J Burn Care Res ; 2024 Jun 19.
Artigo em Inglês | MEDLINE | ID: mdl-38895848

RESUMO

Despite the growing incidence of burn injuries globally and the advancements in physical recovery, the psychological aspect of burn trauma recovery remains inadequately addressed. This review aims to consolidate existing literature posttraumatic stress disorder (PTSD) and depression in adult burn survivors, recognizing the need for a holistic approach to burn recovery that encompasses both physical and mental health. The comprehensive analysis of 156 studies revealed significant variations in methodological approaches, leading to challenges in creating standardized protocols for mental health assessment in burn care. Key findings include the identification of a wide range of psychological assessment tools and a substantial research gap in low and middle-income countries, where the majority of burn injuries occur. Only 7.0% of the studies assessed interventions for PTSD or depression, indicating a lack of focus on treatment modalities. The studies identified demographic factors, patient history, psychosocial factors, burn injury characteristics, and treatment course as risk factors for PTSD and depression post-burn injury. The review highlights the need for early screening, intervention, and attention to subjective experiences related to burn injury, as these are strong predictors of long-term psychological distress. It also emphasizes the complexity of addressing psychological distress in burn survivors and the need for more standardized practices in assessing PTSD and depression specific to this population.

2.
Dev Cogn Neurosci ; 67: 101374, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38615555

RESUMO

The transition to parenthood remains an understudied window of potential neuroplasticity in the adult brain. White matter microstructural (WMM) organization, which reflects structural connectivity in the brain, has shown plasticity across the lifespan. No studies have examined how WMM organization changes from the prenatal to postpartum period in men becoming fathers. This study investigates WMM organization in men transitioning to first-time fatherhood. We performed diffusion-weighted imaging to identify differences in WMM organization, as indexed by fractional anisotropy (FA). We also investigated whether FA changes were associated with fathers' postpartum mental health. Associations between mental health and WMM organization have not been rarely examined in parents, who may be vulnerable to mental health problems. Fathers exhibited reduced FA at the whole-brain level, especially in the cingulum, a tract associated with emotional regulation. Fathers also displayed reduced FA in the corpus callosum, especially in the forceps minor, which is implicated in cognitive functioning. Postpartum depressive symptoms were linked with increases and decreases in FA, but FA was not correlated with perceived or parenting stress. Findings provide novel insight into fathers' WMM organization during the transition to parenthood and suggest postpartum depression may be linked with fathers' neuroplasticity during the transition to parenthood.


Assuntos
Pai , Substância Branca , Humanos , Masculino , Substância Branca/diagnóstico por imagem , Adulto , Pai/psicologia , Adulto Jovem , Imagem de Tensor de Difusão , Plasticidade Neuronal/fisiologia , Imagem de Difusão por Ressonância Magnética , Feminino , Depressão Pós-Parto , Encéfalo
3.
J Anxiety Disord ; 100: 102794, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37980801

RESUMO

Posttraumatic stress disorder (PTSD) has high comorbidity with other psychiatric conditions, including depression, generalized anxiety, and suicidality. Evidence-based treatments (EBTs) for PTSD are effective at reducing PTSD symptoms. However, evidence on the impact of PTSD EBTs on comorbid conditions is mixed and often uses pre-post analyses, which disregards PTSD symptom response. This study replicated and extended prior work on benchmarking quality of life to PTSD symptom response to a broader range of secondary outcomes using a research-based metric of clinically meaningful PTSD symptom change. Ninety-five active duty military members seeking treatment for PTSD participated in a randomized noninferiority trial examining two cognitive behavioral therapies for PTSD: Written Exposure Therapy and Cognitive Processing Therapy. Participants completed clinician-administered and self-rating assessments at baseline and 10 weeks post-first treatment session and were classified as PTSD treatment responders or nonresponders. Data were analyzed using generalized linear mixed effects models with repeated measures with fixed effects of time and PTSD symptom response category. PTSD treatment responders experienced significant improvements in secondary outcomes; nonresponders demonstrated statistically significant, but not clinically meaningful, comorbid symptom change. Our findings provide evidence that successfully treating PTSD symptoms may also positively impact psychiatric comorbidity.


Assuntos
Terapia Implosiva , Transtornos de Estresse Pós-Traumáticos , Humanos , Benchmarking , Cognição , Qualidade de Vida , Transtornos de Estresse Pós-Traumáticos/terapia , Transtornos de Estresse Pós-Traumáticos/psicologia
4.
J Burn Care Res ; 44(6): 1445-1451, 2023 11 02.
Artigo em Inglês | MEDLINE | ID: mdl-37083246

RESUMO

Racial and ethnic minority patients experience worse hypertrophic scars after burn injury than White patients. Subsequently, minority patients encounter differences in scar-related recovery domains such as itch and fatigue. This study examines disparities regarding postburn injury itch and fatigue in minority patients to better inform counseling and treatment considerations. From the multicenter National Institute of Disability, Independent Living and Rehabilitation Research Burn Model System Database (2015-2019), outcomes were analyzed at three time-points (discharge from index hospitalization, 6- and 12-months post-injury) using the 5D Itch and PROMIS-29 Fatigue measures. Multilevel linear mixed effects regression modeling analyzed associations between race/ethnicities and outcomes over time. Of 893 total patients, minority patients reported higher/worse itch scores at all time points compared to White patients. Itch scores were significantly higher for Black patients at 6 months (ß = 1.42, P = .03) and 12 months (ß = 3.36, P < .001) when compared to White patients. Black patients reported higher fatigue scores than White patients at all time points. Fatigue scores were significantly higher for Hispanic/Latino patients at discharge (ß = 6.17, P < .001), 6 months (ß = 4.49, P < .001), and 12 months (ß = 6.27, P < .001) than White patients. This study supports investigation of potential factors leading to increased itch and fatigue such as sociocultural factors, disparities in healthcare access, and psychosocial impacts of these symptoms. In the short-term, minority patients may benefit from additional counseling and focused treatments addressing itch and fatigue after burn injury.


Assuntos
Queimaduras , Minorias Étnicas e Raciais , Humanos , População Negra , Queimaduras/complicações , Queimaduras/etnologia , Etnicidade , Grupos Minoritários , Cicatrização , Cicatriz/etnologia , Cicatriz/etiologia , Fadiga/etnologia , Fadiga/etiologia , Prurido/etnologia , Prurido/etiologia , Hispânico ou Latino , Brancos
5.
J Burn Care Res ; 44(6): 1393-1399, 2023 11 02.
Artigo em Inglês | MEDLINE | ID: mdl-36976523

RESUMO

Patients with psychiatric illness and substance use comorbidities have high rates of burn injuries and experience prolonged hospital admissions. This retrospective chart review characterizes this marginalized population's inpatient burn care and examines post-discharge outcomes compared to burn patients without psychiatric or substance use comorbidities treated at our center. Patients admitted to a single burn center from January 1, 2018 to June 1, 2022 were included. Patient demographics, history of psychiatric disorders, treatment course, and post-discharge outcomes were collected. A total of 1660 patients were included in this study, of which 91 (6%) patients were diagnosed for psychiatric comorbidity and/or substance use comorbidity on admission for burn care. In this cohort of 91 patients with psychiatric and/or substance use comorbidities, the majority of patients were undomiciled (66%) and male (67%). In this cohort, 66 (72%) patients reported recent history or had positive urine toxicology results for illicit substances on admission. In this cohort, a total of 25 (28%) patients had psychiatric comorbidity at the time of burn injury or admission and 69 (76%) patients received inpatient psychiatric care, with 31 (46%) patients requiring psychiatric holds. After discharge, the readmission rate within 1 year of patients with psychiatric and/or substance use comorbidity was over four times greater than that of patients without psychiatric and/or substance use comorbidity. The most common causes of readmission were subsequent mental health crisis (40%) and inability to perform burn care (32%). Our study presents strategies to improve burn care for this marginalized and high-risk population.


Assuntos
Queimaduras , Transtornos Mentais , Transtornos Relacionados ao Uso de Substâncias , Humanos , Masculino , Estudos Retrospectivos , Assistência ao Convalescente , Alta do Paciente , Queimaduras/epidemiologia , Transtornos Mentais/diagnóstico , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Comorbidade
6.
J Trauma Stress ; 36(2): 346-358, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36782378

RESUMO

Group therapy is a frequently used therapy format for posttraumatic stress disorder (PTSD). However, factors contributing to treatment completion remain understudied. The current study examined predictors of treatment completion, defined as having completed 10 out of 14 sessions within 16 weeks, in veterans with PTSD who engaged in a hybrid efficacy-effectiveness randomized controlled trial of group psychotherapy for PTSD. Veterans (N = 198) were randomly assigned to 14 sessions of either group cognitive behavioral treatment (GBCT; n = 98) or group present-centered treatment (GPCT; n = 100). Four primary domains of predictors were examined, encompassing sociodemographic factors, the severity of PTSD and comorbid conditions, modifiable predictors, and treatment condition. Multilevel binomial logistic regression models following the Fournier analysis approach were used to examine significant predictors within domains, which were then included in a final model. Overall, 70.7% of participants completed treatment (GCBT = 61.6%, GPCT = 79.8%). Participants in the GPCT condition were 2.389 times, 95% CI [1.394, 4.092], more likely to complete treatment than those in the GCBT condition. Older age, a higher income and level of educational attainment, more lifetime and current mental health diagnoses, and higher use of positive reappraisal ER skills predicted treatment completion. Higher levels of depressive symptoms, cumulative trauma burden, and use of positive refocusing ER skills predicted treatment noncompletion. These findings are discussed in the context of current clinical and research practices for examining treatment noncompletion, with attention to the inclusion of translational predictors.


Assuntos
Terapia Cognitivo-Comportamental , Psicoterapia de Grupo , Transtornos de Estresse Pós-Traumáticos , Veteranos , Humanos , Masculino , Transtornos de Estresse Pós-Traumáticos/psicologia , Veteranos/psicologia , Índice de Gravidade de Doença
7.
J Clin Psychol Med Settings ; 30(2): 380-386, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-35841442

RESUMO

Posttraumatic Stress Disorder (PTSD) following a traumatic injury is a significant public health concern impacting approximately a third of traumatically injured patients. In 2018, the American College of Surgeons (ACS) Committee on Trauma recommended implementation of PTSD screening and brief intervention in level 1 trauma centers to meet the mental health needs of this underserved population. In March 2022, ACS revised its standards to include a requirement for mental health screening and referral process in level 1 and level 2 trauma centers. However, implementation of these programs has been limited. One barrier to implementation has been the lack of cross-trained trauma and health psychologists to support the development and implementation of trauma-focused programs in acute and critical care settings. This paper is a call to action to bring together experts in the fields of trauma and health psychology to effectively address training gaps in post-injury PTSD and medical traumatic stress. Through development of trauma and health psychology cross-training models, the field of psychology can collaborate to meet the increasing demand for trauma-focused psychologists in acute and critical care settings.


Assuntos
Medicina do Comportamento , Transtornos de Estresse Pós-Traumáticos , Humanos , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Programas de Rastreamento
8.
Adm Policy Ment Health ; 49(6): 1019-1030, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35930084

RESUMO

Social support is bidirectionally linked to symptoms of posttraumatic stress disorder (PTSD). Evidence suggests that family involvement in veterans' mental health treatment is desired by both veterans and family members, and that such involvement has the potential to improve treatment outcomes. However, rates of family involvement are low in the Veterans Health Administration (VHA). We sought to understand VHA clinicians' perspectives on family involvement in PTSD treatment by conducting qualitative interviews with 31 providers at 10 VHA facilities across the U.S. The i-PARIHS framework was used to guide the interviews and analysis, and several major themes were identified. All clinicians reported that they at least occasionally offered family-inclusive sessions, and they frequently referenced both the influence of family behaviors or attitudes on veterans' functioning, and also how veterans' symptoms could cause tremendous disruption in the family. Clinicians' past experience with supervised family- or couple-based work strongly influenced their current comfort with family-inclusive sessions. Multiple potential avenues exist to support increased family involvement in PTSD treatment in VHA.


Assuntos
Transtornos de Estresse Pós-Traumáticos , Veteranos , Humanos , Estados Unidos , Transtornos de Estresse Pós-Traumáticos/terapia , Transtornos de Estresse Pós-Traumáticos/psicologia , Saúde dos Veteranos , Veteranos/psicologia , Família/psicologia , Psicoterapia , United States Department of Veterans Affairs
9.
Soc Neurosci ; 17(1): 21-36, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-35034575

RESUMO

Fathers play a critical role in parenting and in shaping child outcomes. However, the neurobiological underpinnings of successful adjustment to fatherhood have not been well-specified. Empathy and mentalizing abilities may characterize more effective fathering. These abilities may be supported by the functional connectivity (FC) of brain regions associated with social cognition and executive control. We used a seed-region-based approach to assess resting-state FC (rsFC) of the medial prefrontal cortex (mPFC) in 40 expectant fathers. We tested associations between mPFC whole-brain rsFC and fathers' self-report measures of empathy during pregnancy, as well as their ratings of father-infant bonding and fathering behaviors at six months postpartum. Stronger prenatal rsFC between the mPFC and precuneus, frontal pole, planum polare, and orbitofrontal cortex (OFC) was negatively associated with self-reported empathic concern and perspective-taking, whereas mPFC rsFC with the lateral occipital cortex (LOC) was positively associated with self-reported perspective-taking. Additionally, stronger prenatal connectivity between the mPFC rsFC and the superior parietal lobule and LOC regions predicted father reports of postpartum bonding with infants, and stronger prenatal mPFC rsFC with the LOC predicted more effective postpartum parenting. This study is the first to measure rsFC in expectant fathers as a predictor of subsequent adjustment to fathering.


Assuntos
Mentalização , Poder Familiar , Encéfalo/diagnóstico por imagem , Criança , Pai , Feminino , Humanos , Lactente , Imageamento por Ressonância Magnética , Masculino , Período Pós-Parto , Gravidez
10.
Dev Psychobiol ; 63(5): 1549-1567, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33748973

RESUMO

Social cognition may facilitate fathers' sensitive caregiving behavior. We administered the Why-How Task, an fMRI task that elicits theory of mind processing, to expectant fathers (n = 39) who also visited the laboratory during their partner's pregnancy and provided a plasma sample for oxytocin assay. Three months postpartum, fathers reported their beliefs about parenting. When rating "Why" an action was being performed versus "How" the action was being performed (Why > How contrast), participants showed activation in regions theorized to support theory of mind, including the dorsomedial prefrontal cortex and superior temporal sulcus. Fathers' prenatal oxytocin levels predicted greater signal change during the Why > How contrast in the inferior parietal lobule. Both prenatal oxytocin and attunement parenting beliefs were associated with Why > How activation in the dorsolateral prefrontal cortex, a theory of mind region implicated in emotion regulation. Posterior parahippocampal gyrus and dorsolateral prefrontal cortex activation during the Why > How contrast predicted fathers' attunement parenting beliefs. In conclusion, fathers' neural activation when engaging in a theory of mind task was associated with their prenatal oxytocin levels and their postpartum attunement parenting beliefs. Results suggest biological and cognitive components of fathering may track with the theory of mind processing.


Assuntos
Ocitocina , Teoria da Mente , Pai/psicologia , Feminino , Humanos , Masculino , Poder Familiar/psicologia , Pais , Gravidez
11.
J Burn Care Res ; 42(4): 600-609, 2021 08 04.
Artigo em Inglês | MEDLINE | ID: mdl-33677491

RESUMO

Peer support group programs are often recommended for burn survivors as a way to facilitate their psychosocial recovery and reintegration into the community. Such programs provide opportunities for burn patients and their caretakers to access emotional and informational support from healthcare providers and other survivors in inpatient or outpatient settings. Despite their popularity, however, there is little information currently available on the efficacy of these groups. In response, we reviewed the existing literature on peer support group programs and their impacts on psychosocial outcomes for burn survivors and their caregivers. A systematic review of the literature utilizing PubMed, PsycINFO, and Medline databases was conducted for articles published between 1990 and 2018. Twenty-five articles including inpatient, outpatient, integrative peer support groups, and burn camps met our inclusion criteria. All inpatient peer support group program articles (n = 4) reported associations with psychosocial improvements. Integrative peer support group program articles (n = 2) reported associations with social integration and reduction in post-traumatic stress and anxiety. All outpatient peer support group program articles (n = 8) demonstrated associations with psychosocial outcomes involving life satisfaction, acceptance of self, and reduced levels of isolation. Findings were less consistent for burn camps: eight articles suggested improvements in psychological outcomes while three articles reported no significant psychosocial effects. Although these results are encouraging, further study is indicated both to replicate these findings, and to determine the optimal implementation of inpatient and outpatient peer support programs.


Assuntos
Queimaduras/psicologia , Cuidadores/psicologia , Grupo Associado , Grupos de Autoajuda , Sobreviventes/psicologia , Adulto , Humanos , Masculino , Pesquisa Qualitativa , Apoio Social
12.
Soc Cogn Affect Neurosci ; 15(4): 437-446, 2020 06 23.
Artigo em Inglês | MEDLINE | ID: mdl-32307534

RESUMO

Expectant parents' responses to infant cry may indicate future risk and resiliency in the parent-child relationship. Most studies of parental reactivity to infant cry have focused on mothers, and few studies have focused on expectant fathers, although fathers make important contributions to parenting. Additionally, although different responses to infant cry (behavioral, psychological and neural) are hypothesized to track together, few studies have analyzed them concurrently. The current investigation aimed to address these gaps by characterizing multimodal responses to infant cry within expectant fathers and testing whether prenatal testosterone moderates these responses. Expectant fathers responded to infant cry vs frequency-matched white noise with increased activation in bilateral areas of the temporal lobe involved in processing speech sounds and social and emotional stimuli. Handgrip force, which has been used to measure parents' reactivity to cry sounds in previous studies, did not differentiate cry from white noise within this sample. Expectant fathers with higher prenatal testosterone showed greater activation in the supramarginal gyrus, left occipital lobe and precuneus cortex to cry sounds. Expectant fathers appear to interpret and process infant cry as a meaningful speech sound and social cue, and testosterone may play a role in expectant fathers' response to infant cry.


Assuntos
Encéfalo/fisiologia , Choro , Pai/psicologia , Comportamento Paterno/fisiologia , Lobo Temporal/fisiologia , Testosterona/fisiologia , Adulto , Emoções/fisiologia , Feminino , Força da Mão , Humanos , Lactente , Masculino , Relações Pais-Filho , Poder Familiar/psicologia , Gravidez
13.
J Fam Psychol ; 34(6): 759-765, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32162942

RESUMO

Despite evidence linking prenatal psychosocial stress and social support to perinatal maternal and infant health, no study has explored couple conflict behavior during pregnancy as a predictor of subsequent birth outcomes. The current study examines whether couples' positive and negative conflict behaviors during pregnancy predict their stress during the birth experience and gestational and birth outcomes. Forty-seven first-time expectant couples participated in a conflict discussion during pregnancy that was observationally coded. Several months later, following the birth of their child, couples reported on their subjective childbirth stress. By summing medical chart data on gestational outcomes and birth complications, we computed a cumulative birth risk score. Negative conflict behavior was related to higher cumulative birth risk scores, and conversely, positive conflict behavior was associated with lower birth risk, even after controlling for maternal pregnancy symptoms. Similarly, more negative conflict behavior predicted higher mother-reported birth stress, while positive conflict behavior predicted lower father-reported birth stress. However, birth stress effects became nonsignificant after controlling for maternal pregnancy symptoms. Although the pregnancy literature has focused primarily on maternal characteristics, these findings highlight the significance of couple interactions in predicting parental birth stress and birth outcomes. This study integrates psychological, behavioral, and medical chart data to enhance our understanding of how interpersonal factors influence gestational outcomes and the birth experience. These results have important clinical implications for potential couple interventions during pregnancy that can shape fetal development, the labor and delivery experience, and influence child and family health. (PsycInfo Database Record (c) 2020 APA, all rights reserved).


Assuntos
Conflito Familiar/psicologia , Parto/psicologia , Resultado da Gravidez/psicologia , Cônjuges/psicologia , Estresse Psicológico/psicologia , Adulto , Feminino , Humanos , Recém-Nascido , Masculino , Gravidez , Adulto Jovem
14.
Perspect Psychol Sci ; 15(2): 469-482, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31834845

RESUMO

Theories such as social baseline theory have argued that social groups serve a regulatory function but have not explored whether this regulatory process carries costs for the group. Allostatic load, the wear and tear on regulatory systems caused by chronic or frequent stress, is marked by diminished stress system flexibility and compromised recovery. We argue that allostatic load may develop within social groups as well and provide a model for how relationship dysfunction operates. Social allostatic load may be characterized by processes such as groups becoming locked into static patterns of interaction and may ultimately lead to up-regulation or down-regulation of a group's set point, or the optimal range of arousal or affect around which the group tends to converge. Many studies of emotional and physiological linkage within groups have reported that highly correlated states of arousal, which may reflect failure to maintain a group-level regulatory baseline, occur in the context of stress, conflict, and relationship distress. Relationship strain may also place greater demands on neurocognitive regulatory processes. Just as allostatic load may be detrimental to individual health, social allostatic load may corrode relationship quality.


Assuntos
Alostase , Emoções , Processos Grupais , Nível de Saúde , Modelos Psicológicos , Cognição Social , Interação Social , Estresse Psicológico , Alostase/fisiologia , Emoções/fisiologia , Humanos , Estresse Psicológico/fisiopatologia
15.
Dev Sci ; 21(6): e12686, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-29890029

RESUMO

Community violence exposure is a common stressor, known to compromise youth cognitive and emotional development. In a diverse, urban sample of 22 adolescents, participants reported on community violence exposure (witnessing a beating or illegal drug use, hearing gun shots, or other forms of community violence) in early adolescence (average age 12.99), and underwent a neuroimaging scan 3-5 years later (average age 16.92). Community violence exposure in early adolescence predicted smaller manually traced left and right hippocampal and amygdala volumes in a model controlling for age, gender, and concurrent community violence exposure, measured in late adolescence. Community violence continued to predict hippocampus (but not amygdala) volumes after we also controlled for family aggression exposure in early adolescence. Community violence exposure was also associated with stronger resting state connectivity between the right hippocampus (using the manually traced structure as a seed region) and bilateral frontotemporal regions including the superior temporal gyrus and insula. These resting state connectivity results held after controlling for concurrent community violence exposure, SES, and family aggression. Although this is the first study focusing on community violence in conjunction with brain structure and function, these results dovetail with other research linking childhood adversity with smaller subcortical volumes in adolescence and adulthood, and with altered frontolimbic resting state connectivity. Our findings suggest that even community-level exposure to neighborhood violence can have detectable neural correlates in adolescents.


Assuntos
Tonsila do Cerebelo/fisiopatologia , Exposição à Violência/psicologia , Hipocampo/fisiopatologia , Características de Residência , Adolescente , Criança , Humanos , Estudos Longitudinais , Neuroimagem , Lobo Temporal
16.
Proc Biol Sci ; 284(1865)2017 Oct 25.
Artigo em Inglês | MEDLINE | ID: mdl-29070724

RESUMO

Costly altruism benefitting a stranger is a rare but evolutionarily conserved phenomenon. This behaviour may be supported by limbic and midbrain circuitry that supports mammalian caregiving. In rodents, reciprocal connections between the amygdala and the midbrain periaqueductal grey (PAG) are critical for generating protective responses toward vulnerable and distressed offspring. We used functional and structural magnetic resonance imaging to explore whether these regions play a role in supporting costly altruism in humans. We recruited a rare population of altruists, all of whom had donated a kidney to a stranger, and measured activity and functional connectivity of the amygdala and PAG as altruists and matched controls responded to care-eliciting scenarios. When these scenarios were coupled with pre-attentive distress cues, altruists' sympathy corresponded to greater activity in the left amygdala and PAG, and functional connectivity analyses revealed increased coupling between these regions in altruists during this epoch. We also found that altruists exhibited greater fractional anisotropy within the left amygdala-PAG white matter tract. These results, coupled with previous evidence of altruists' increased amygdala-linked sensitivity to distress, are consistent with costly altruism resulting from enhanced care-oriented responses to vulnerability and distress that are supported by recruitment of circuitry that supports mammalian parental care.


Assuntos
Altruísmo , Tonsila do Cerebelo/fisiologia , Substância Cinzenta Periaquedutal/fisiologia , Adolescente , Adulto , Animais , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Mamíferos , Comportamento Materno , Comportamento Paterno , Adulto Jovem
17.
Soc Cogn Affect Neurosci ; 12(10): 1637-1646, 2017 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-28981903

RESUMO

This study used an emotional go/no-go task to explore inhibitory spillover (how intentional cognitive inhibition 'spills over' to inhibit neural responses to affective stimuli) within 23 adolescents. Adolescents were shown emotional faces and asked to press a button depending on the gender of the face. When asked to inhibit with irrelevant affective stimuli present, adolescents recruited prefrontal cognitive control regions (rIFG, ACC) and ventral affective areas (insula, amygdala). In support of the inhibitory spillover hypothesis, increased activation of the rIFG and down-regulation of the amygdala occurred during negative, but not positive, inhibition trials compared with go trials. Functional connectivity analysis revealed coupling of the rIFG pars opercularis and ventral affective areas during negative no-go trials. Age was negatively associated with activation in frontal and temporal regions associated with inhibition and sensory integration. Internalizing symptoms were positively associated with increased bilateral IFG, ACC, putamen and pallidum. This is the first study to test the inhibitory spillover emotional go/no-go task within adolescents, who may have difficulties with inhibitory control, and to tie it to internalizing symptoms.


Assuntos
Inibição Psicológica , Psicologia do Adolescente , Adolescente , Afeto/fisiologia , Envelhecimento/psicologia , Tonsila do Cerebelo/fisiologia , Mapeamento Encefálico , Expressão Facial , Feminino , Lobo Frontal/fisiologia , Humanos , Estudos Longitudinais , Masculino , Vias Neurais/fisiologia , Desempenho Psicomotor/fisiologia , Tempo de Reação , Lobo Temporal/fisiologia , Adulto Jovem
18.
Sci Rep ; 6: 18974, 2016 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-26739364

RESUMO

In the Ultimatum Game (UG), incurring a cost to punish inequity is commonly termed altruistic punishment. This behaviour is thought to benefit others if the defector becomes more equitable in future interactions. However, clear connections between punishment in the UG and altruistic behaviours outside the laboratory are lacking. We tested the altruistic punishment hypothesis in a sample of extraordinarily altruistic adults, predicting that if punishing inequity is predictive of altruism more broadly, extraordinary altruists should punish more frequently. Results showed that punishment was not more prevalent in extraordinary altruists than controls. However, a self-reported altruism measure previously linked to peer evaluations but not behaviour, and on which extraordinary altruists and controls did not differ, did predict punishment. These findings support suggestions that altruistic punishment in the UG is better termed costly punishment and may be motivated by social, but not necessarily prosocial, concerns. Results also support prior suggestions that self-reported altruism may not reliably predict altruistic behaviour.


Assuntos
Altruísmo , Punição , Adulto , Comportamento Cooperativo , Tomada de Decisões , Empatia , Feminino , Jogos Experimentais , Humanos , Masculino , Pessoa de Meia-Idade , Doadores de Tecidos
19.
J Abnorm Psychol ; 124(3): 589-95, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26375827

RESUMO

One's own emotional response toward a hypothetical action can influence judgments of its moral acceptability. Some individuals with autism spectrum disorder (ASD) exhibit atypical emotional processing, and moral judgments. Research suggests, however, that emotional deficits in ASD are due to co-occurring alexithymia, meaning atypical moral judgments in ASD may be due to alexithymia also. Individuals with and without ASD (matched for alexithymia) judged the moral acceptability of emotion-evoking statements and identified the emotion evoked. Moral acceptability judgments were predicted by alexithymia. Crucially, however, this relationship held only for individuals without ASD. While ASD diagnostic status did not directly predict either judgment, those with ASD did not base their moral acceptability judgments on emotional information. Findings are consistent with evidence demonstrating that decision-making is less subject to emotional biases in those with ASD.


Assuntos
Sintomas Afetivos/psicologia , Transtorno do Espectro Autista/psicologia , Emoções/fisiologia , Julgamento/fisiologia , Princípios Morais , Tomada de Decisões/fisiologia , Feminino , Humanos , Masculino
20.
Proc Natl Acad Sci U S A ; 111(42): 15036-41, 2014 Oct 21.
Artigo em Inglês | MEDLINE | ID: mdl-25225374

RESUMO

Altruistic behavior improves the welfare of another individual while reducing the altruist's welfare. Humans' tendency to engage in altruistic behaviors is unevenly distributed across the population, and individual variation in altruistic tendencies may be genetically mediated. Although neural endophenotypes of heightened or extreme antisocial behavior tendencies have been identified in, for example, studies of psychopaths, little is known about the neural mechanisms that support heightened or extreme prosocial or altruistic tendencies. In this study, we used structural and functional magnetic resonance imaging to assess a population of extraordinary altruists: altruistic kidney donors who volunteered to donate a kidney to a stranger. Such donations meet the most stringent definitions of altruism in that they represent an intentional behavior that incurs significant costs to the donor to benefit an anonymous, nonkin other. Functional imaging and behavioral tasks included face-emotion processing paradigms that reliably distinguish psychopathic individuals from controls. Here we show that extraordinary altruists can be distinguished from controls by their enhanced volume in right amygdala and enhanced responsiveness of this structure to fearful facial expressions, an effect that predicts superior perceptual sensitivity to these expressions. These results mirror the reduced amygdala volume and reduced responsiveness to fearful facial expressions observed in psychopathic individuals. Our results support the possibility of a neural basis for extraordinary altruism. We anticipate that these findings will expand the scope of research on biological mechanisms that promote altruistic behaviors to include neural mechanisms that support affective and social responsiveness.


Assuntos
Altruísmo , Transplante de Rim/psicologia , Doadores de Tecidos/psicologia , Obtenção de Tecidos e Órgãos , Adulto , Mapeamento Encefálico , Cognição , Emoções , Expressão Facial , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Modelos Neurológicos , Adulto Jovem
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