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1.
Stress Health ; : e3420, 2024 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-38779940

RESUMO

Although stress is often related to substance use, it remains unclear whether substance use is related to individual differences in how adolescents respond to stress. Therefore the present study examined associations between substance use and daily emotional reactivity to stress within a year across adolescence. Adolescents (N = 330; Mage = 16.40, SD = 0.74 at study entry; n = 186 female; n = 138 Latine; n = 101 European American; n = 72 Asian American; n = 19 identifying as another ethnicity including African American and Middle Eastern) completed a longitudinal study, including three assessments between the 10th grade and 3-years post-high school. At each assessment, participants reported frequency of alcohol and cannabis use and the number of substances they had ever used. They also completed 15 daily checklists, in which they reported the number of daily arguments and their daily emotion. Multilevel models suggested that more frequent alcohol and cannabis use were related to attenuated positive emotional reactivity to daily stress (i.e., smaller declines in positive emotion on days when they experienced more arguments) for both male and female adolescents. Associations for negative emotional reactivity to stress varied by sex; more frequent alcohol use and use of more substances in one's lifetime were related to greater anxious emotional reactivity to stress among female adolescents, whereas more frequent alcohol and cannabis use and higher lifetime substance use were related to attenuated depressive emotional reactivity to stress among male adolescents. Taken together, substance use was related to emotional reactivity to daily stress within the same year during adolescence, although associations differed by valence and adolescent sex.

2.
Artigo em Inglês | MEDLINE | ID: mdl-38780598

RESUMO

OBJECTIVES: The cultural stress theory posits that immigrants experience a constellation of cultural stressors such as discrimination that could exacerbate alcohol- and other substance-related problems. Drawing on cultural stress theory, this study investigated the age-varying association between past-year discrimination and substance use disorders (SUDs) among Latin American immigrants aged 18-60 and whether childhood family support moderated the above association. METHOD: We used data from the National Epidemiologic Survey on Alcohol and Related Conditions-III (NESARC-III) among adults aged 18-60 who identified as a Latin American immigrant (N = 3,049; 48% female). RESULTS: Time-varying effect models (TVEMs) revealed that experiencing past-year discrimination was associated with greater odds of having a SUD during young and middle adulthood for Latin American immigrants. Furthermore, for immigrants with lower childhood family support, discrimination was associated with SUD risk in young and middle adulthood. CONCLUSION: The present study documents that past-year discrimination was linked to greater SUD risk during young and middle adulthood. Childhood family support may serve as a protective factor in the association between discrimination and risk for SUD among Latin American immigrants. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

3.
J Res Adolesc ; 34(1): 141-158, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38058247

RESUMO

The present study examined whether everyday discrimination relates to the frequency of adolescents' positive and negative daily social interactions and whether these associations are driven by anger and positive emotion. Adolescents (N = 334) participated in a three-wave longitudinal study, in which they completed surveys regarding everyday discrimination, anger, and positive emotion, as well as 15 daily reports of conflict and getting along with friends and family. Higher everyday discrimination was related to more daily conflicts and fewer experiences of getting along with other people. Longitudinal models also provided preliminary evidence that everyday discrimination was associated with daily conflicts 4 years later indirectly through anger. Overall, results suggest everyday discrimination relates to adolescents' daily experiences, potentially through differences in emotion.


Assuntos
Comportamento do Adolescente , Emoções , Humanos , Adolescente , Estudos Longitudinais , Ira , Amigos/psicologia , Comportamento do Adolescente/psicologia
4.
Stress Health ; 40(2): e3307, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37694913

RESUMO

Emotion reactivity refers to the intensity of changes in positive and negative emotion following a stimulus, typically studied with respect to daily stressors (e.g., arguments, demands) or laboratory stressors, including the Trier Social Stress Test (TSST). Yet, it is unclear whether emotion reactivity to daily and to laboratory stressors are related. The present study examined whether greater emotion reactivity to daily stressors (i.e., arguments, demands) is associated with greater reactivity to the TSST. Late adolescents (N = 82; Mage = 18.35, SD = 0.51, range 17-19; 56.1% female; 65.9% Latine, 34.2% European American) reported whether they experienced arguments and demands with friends, family, and individuals at school and their negative and positive emotion nightly for 15 days. They also completed the TSST, a validated paradigm for eliciting social-evaluative threat, and reported their emotion at baseline and immediately post-TSST. Multilevel models examined whether daily and laboratory emotion reactivity were related by testing whether the daily associations between arguments and demands with emotion differed by emotion reactivity to the TSST. Individuals with greater positive emotion reactivity (i.e., greater reductions in positive emotion) and greater negative emotion reactivity to the TSST showed greater positive emotion reactivity to daily demands. Emotion reactivity to the TSST was not significantly related to emotion reactivity to arguments. Findings provide preliminary evidence that emotion reactivity to the TSST relates to some aspects of daily emotion reactivity, with relations differing depending on type of daily stressor and valence of emotion. Results contextualise the implications of emotion reactivity to the TSST for daily stress processes.


Assuntos
Emoções , Estresse Psicológico , Humanos , Adolescente , Feminino , Masculino , Estresse Psicológico/psicologia , Testes Psicológicos , Dissidências e Disputas , Instituições Acadêmicas , Hidrocortisona
5.
Cultur Divers Ethnic Minor Psychol ; 29(4): 540-550, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37428755

RESUMO

OBJECTIVE: The present study investigated whether associations between sociopolitical discussions and mental health differed by racial discrimination among racially minoritized college students. We also tested whether associations differed between election years-when sociopolitical discussions may be more frequent-and nonelection years. METHOD: In November 2020, racially minoritized college students (N = 225; Mage = 19.84, SD = 1.41; 72.89% female; 52.00% Asian, 22.67% Latino, 16.00% multiracial, 9.33% races including Black and Middle Eastern) reported how often they had experienced racial discrimination, their frequency of sociopolitical discussions with friends and family, and their mental health. RESULTS: Results indicated that participants who had more frequent sociopolitical discussions with friends-but not family-only reported more internalizing problems if they had never or rarely experienced racial discrimination in the past year. To determine whether results were unique to discussions during election years, a second sample (N = 262; Mage = 20.18, SD = 2.30; 82.53% female; 48.86% Asian, 18.56% Latino, 15.42% multiracial, 17.78% races including Black and Middle Eastern) was recruited 1 year later, and racial discrimination did not moderate associations between sociopolitical discussions and internalizing problems. CONCLUSIONS: Sociopolitical discussions with friends during presidential elections may be related to greater internalizing problems for racially minoritized college students who experience racial discrimination less frequently, potentially because they may feel less prepared or less motivated to have these conversations compared to racially minoritized college students who experience racial discrimination more frequently. Future studies should investigate means of promoting sociopolitical discussions on campus while attenuating the association between sociopolitical discussions and internalizing problems. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Política , Racismo , Estudantes , Feminino , Humanos , Masculino , Adulto Jovem , Grupos Raciais , Racismo/psicologia , Estudantes/psicologia
6.
Psychoneuroendocrinology ; 153: 106103, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37054596

RESUMO

Alterations in immune system gene expression have been implicated in psychopathology, but it remains unclear whether similar associations occur for intraindividual variations in emotion. The present study examined whether positive emotion and negative emotion were related to expression of pro-inflammatory and antiviral genes in circulating leukocytes from a community sample of 90 adolescents (Mage = 16.3 years, SD = 0.7; 51.1% female). Adolescents reported their positive emotion and negative emotion and provided blood samples twice, five weeks apart. Using a multilevel analytic framework, we found that within-individual increases in positive emotion were associated with reduced expression of both pro-inflammatory and Type I interferon (IFN) response genes, even after adjusting for demographic and biological covariates, and for leukocyte subset abundance. By contrast, increases in negative emotion were related to higher expression of pro-inflammatory and Type I IFN genes. When tested in the same model, only associations with positive emotion emerged as significant, and increases in overall emotional valence were associated with both lower pro-inflammatory and antiviral gene expression. These results are distinct from the previously observed Conserved Transcriptional Response to Adversity (CTRA) gene regulation pattern characterized by reciprocal changes in pro-inflammatory and antiviral gene expression and may reflect alterations in generalized immunologic activation. These findings highlight one biological pathway by which emotion may potentially impact health and physiological function in the context of the immune system, and future studies can investigate whether fostering positive emotion may promote adolescent health through changes in the immune system.


Assuntos
Emoções , Transcriptoma , Adolescente , Humanos , Feminino , Masculino , Ativação Transcricional , Emoções/fisiologia , Regulação da Expressão Gênica , Antivirais
7.
J Stud Aff Res Pract ; 60(1): 108-122, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36818329

RESUMO

In March 2020, 234 students (77.50% female; 63.09% second-year, 28.33% third-year) enrolled in a psychological statistics course at a public university described their experiences during the first week of the COVID-19-related transition to remote instruction. Qualitative responses indicated 13 common concerns including financial, housing, and food insecurity; social life concerns; distress; sleep difficulties; and academic problems. Students with lower socioeconomic status were more likely to experience financial instability, food insecurity, and difficulty focusing academically.

8.
Stress Health ; 39(1): 182-196, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35700233

RESUMO

We investigated whether parasympathetic and sympathetic nervous system (SNS) responses to social-evaluative threat at age 14 were related to the number of substances used between ages 14 and 16 among Mexican-origin adolescents (N = 243; 70.4% had never used substances by 14). Participants completed the Trier Social Stress Test, while cardiac measures of parasympathetic and SNS activity were measured continuously using respiratory sinus arrhythmia (RSA) and pre-ejection period (PEP), respectively. Participants reported whether they had ever used alcohol, marijuana, and cigarettes, and had ever vaped nicotine in their lifetime at ages 14 and 16. Multilevel models were used to test associations between RSA and PEP responses at age 14 and substance use at 16. Among youth who had not used substances by 14, dampened RSA and PEP responses, and profiles of greater coinhibition and lower reciprocal SNS activation between RSA and PEP, at age 14 were associated with using substances by 16. Among youth who used by 14, exaggerated PEP responses were associated with using more substances by age 16. Taken together, dampened autonomic responses to social-evaluative threat predicted initiation of substance use over two years, and difficulties with coordination of physiological responses may confer risk for substance use in adolescence.


Assuntos
Arritmia Sinusal Respiratória , Transtornos Relacionados ao Uso de Substâncias , Adolescente , Humanos , Sistema Nervoso Autônomo , Sistema Nervoso Simpático/fisiologia , Arritmia Sinusal Respiratória/fisiologia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Frequência Cardíaca/fisiologia
9.
Dev Psychopathol ; 35(3): 1497-1514, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-35758286

RESUMO

Substance use increases throughout adolescence, and earlier substance use may increase risk for poorer health. However, limited research has examined whether stress responses relate to adolescent substance use, especially among adolescents from ethnic minority and high-adversity backgrounds. The present study assessed whether blunted emotional and cortisol responses to stress at age 14 related to substance use by ages 14 and 16, and whether associations varied by poverty status and sex. A sample of 277 Mexican-origin youth (53.19% female; 68.35% below the poverty line) completed a social-evaluative stress task, which was culturally adapted for this population, and provided saliva samples and rated their anger, sadness, and happiness throughout the task. They also reported whether they had ever used alcohol, marijuana, cigarettes, and vaping of nicotine at age 14 and again at age 16. Multilevel models suggested that blunted cortisol reactivity to stress was associated with alcohol use by age 14 and vaping nicotine by age 16 among youth above the poverty line. Also, blunted sadness and happiness reactivity to stress was associated with use of marijuana and alcohol among female adolescents. Blunted stress responses may be a risk factor for substance use among youth above the poverty line and female adolescents.


Assuntos
Etnicidade , Transtornos Relacionados ao Uso de Substâncias , Humanos , Adolescente , Feminino , Masculino , Nicotina , Hidrocortisona , Grupos Minoritários , Estresse Psicológico/psicologia
10.
Appetite ; 180: 106338, 2023 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-36210016

RESUMO

Socioeconomic status has been related to poorer eating behaviors, potentially due to feeling of lower status relative to peers. Despite experimental evidence that temporarily feeling of lower status can contribute to greater caloric intake, it remains unclear how feeling of lower social status relate to eating behavior in daily life. This study aimed to test whether lower subjective social status (SSS)-the feeling of having relatively lower social status-in American society and relative to college peers were related to daily food selection. A sample of 131 young adults (Mage = 20.3, SD = 0.8; 60% female; 46% Latinos; 34% European American; 15% Asian American; 5% of other ethnicities) reported their SSS in society and in college and completed 15 daily reports regarding the number of daily servings they had of fruits, vegetables, fried foods, fast foods, desserts, and sugary drinks. Multilevel models with days nested within individuals were used to test whether low SSS in society or college related to daily food intake. Next, we examined whether associations were driven by young adults' perceived stress and daily stressors. Analyses controlled for age, gender, ethnicity, family and personal income, and parents' education to test the unique associations between subjective status and food intake. Whereas SSS in society was not related to food intake, young adults with lower SSS in their college consumed fewer daily servings of healthy foods and more daily servings of high-fat/high-sugar foods. Although lower college SSS was related to greater perceived stress, perceived stress and daily stressors were consistently unrelated to daily food intake. Findings suggested that lower SSS in local environments (e.g., college) may impact young adults' daily food choices through processes beyond heightened stress.


Assuntos
Classe Social , Status Social , Feminino , Humanos , Masculino , Universidades , Açúcares
11.
Anxiety Stress Coping ; 36(4): 502-518, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-36018365

RESUMO

BACKGROUND: People of lower social status tend to have greater emotional responses to stress. The present study assessed whether lower social status was related to greater emotional responses in anticipation of a naturalistic stressor: academic exams among college students. METHODS: College students in an introductory statistics class (N = 252; 75.81% female; 18.41% Latino, 25.10% White, 43.93% Asian, 12.56% different racial backgrounds) completed two course exams as part of this naturalistic prepost-experimental design. They provided four reports of positive, depressive, and anxious emotion - one the day before and one immediately after each exam. RESULTS: As hypothesized, multilevel models (ratings nested within participants) predicting emotion indicated that students with lower mother's education had less positive emotion, more depressive emotion, and more anxious emotion the day prior to academic exams than students with higher mother's education (proportional reductions in variance [PRV] = .013-.020). Specifically, lower mother's education was associated with poorer well-being before but not after the exam. Exploratory models revealed that differences in emotion by mother's education were strongest for students with lower exam scores (PRV = .030-.040). CONCLUSIONS: Socioeconomic status may influence college students' anticipatory distress prior to academic exams, which may impact health and academic performance.


Assuntos
Emoções , Estudantes , Humanos , Feminino , Masculino , Estudantes/psicologia , Avaliação Educacional , Escolaridade , Classe Social
12.
J Affect Disord ; 320: 725-734, 2023 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-36162680

RESUMO

BACKGROUND: Higher resting parasympathetic nervous system activity, as indexed by respiratory sinus arrhythmia (RSA), has been considered a marker of emotion regulatory capacity and is consistently related to better mental health. However, it remains unclear how resting RSA relates to emotion reactivity to acute social-evaluative stress, a potent predictor of depression and other negative outcomes. METHOD: A sample of 89 participants (Mage = 18.36, SD = 0.51; 58.43 % female) provided measures of RSA at rest and then completed the Trier Social Stress Test, a standardized laboratory-based social-evaluative stress task that involves public speaking and mental arithmetic while being evaluated by two confederate judges. Participants reported a variety of emotions (e.g., negative emotion, positive emotion) at baseline and immediately after the stress task. RESULTS: Participants with higher resting RSA showed greater increases in negative emotion, guilt, depressive emotion, and anger, as well as greater decreases in positive emotion after the task. LIMITATION: Data were limited to a relatively small sample of late adolescents, who may be particularly responsive to social-evaluative stress compared to adults. CONCLUSIONS: Findings suggest that higher resting RSA may enhance emotion responses to social-evaluative stress in adolescents, potentially due to active engagement and responding to rather than passively viewing stimuli. Higher resting RSA may promote flexible emotion responses to the social environment, which may account for associations between higher RSA and better mental health.


Assuntos
Arritmia Sinusal Respiratória , Humanos , Adulto , Adolescente , Feminino , Masculino , Arritmia Sinusal Respiratória/fisiologia , Emoções/fisiologia , Estresse Psicológico , Meio Social
13.
Dev Psychobiol ; 64(7): e22314, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36282760

RESUMO

The current study investigates whether prepregnancy maternal posttraumatic stress disorder (PTSD) symptoms, depressive symptoms, and stress predict children's cortisol diurnal slopes and cortisol awakening responses (CARs) adjusting for relevant variables. Mothers were enrolled after delivering a baby and followed through their subsequent pregnancy with 5 years of longitudinal data on their subsequent child. This prospective design allowed assessment of PTSD symptoms, depressive symptoms, and perceived stress prior to pregnancy. Children provided three saliva samples per day on three consecutive days at two timepoints in early childhood (M age = 3.7 years, SD = 0.38; M age = 5.04 years, SD = 0.43). Mothers' PTSD symptoms prior to pregnancy were significantly associated with flatter child diurnal cortisol slopes at 4 and 5 years, but not with child CAR. Findings at the age of 4 years, but not 5 years, remained statistically significant after adjustment for maternal socioeconomic status, race/ethnicity, child age, and other covariates. In contrast, maternal prepregnancy depressive symptoms and perceived stress did not significantly predict cortisol slopes or CAR. Results suggest that maternal prepregnancy PTSD symptoms may contribute to variation in early childhood physiology. This study extends earlier work demonstrating risk of adverse outcomes among children whose mothers experienced trauma but associations cannot be disentangled from effects of prenatal mental health of mothers on children's early childhood.


Assuntos
Hidrocortisona , Sistema Hipófise-Suprarrenal , Gravidez , Criança , Feminino , Pré-Escolar , Humanos , Sistema Hipotálamo-Hipofisário , Saúde Mental , Saliva , Mães/psicologia , Estresse Psicológico/psicologia
14.
Soc Dev ; 31(3): 568-586, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36172201

RESUMO

Although many emerging adults struggle to gain status and develop social relationships, particularly during the college transition, it remains unclear whether certain personality traits facilitate this transition. Using a longitudinal design, we investigated whether status-related traits-namely, entitlement, intrasexual competitiveness, and dominance-related to the development of status in 91 first-year college students (M age=18.15, SD=0.44) transitioning to a novel college environment. We also examined whether personality traits moderated the degree to which status related to loneliness. As hypothesized, only students high in intrasexual competitiveness experienced increases in subjective dorm status across the year. In addition, students exhibiting average or low entitlement experienced decreases in loneliness over time, whereas high entitlement was related to consistently low loneliness. Finally, higher subjective dorm status was related to lower loneliness only for less dominant students, as assessed by both self-ratings of trait dominance and raters' judgments of facial dominance from photographs. Using a real-world context of status development, these results suggest that personality traits may influence students' ability to experience higher status and modulate the relation between subjective status and loneliness.

15.
Health Psychol ; 41(12): 894-903, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36154104

RESUMO

OBJECTIVES: Anxiety is prevalent in pregnancy and predicts risk of adverse birth outcomes. Many instruments measure anxiety in pregnancy, some of which assess pregnancy anxiety defined as maternal concerns about a current pregnancy (e.g., baby, childbirth). The present study examined covariance among four anxiety or distress measures at two times in pregnancy and tested joint and individual effects on gestational length. We hypothesized that the common variance of the measures in each trimester would predict earlier delivery. METHOD: Research staff interviewed 196 women in first and third trimester utilizing a clinical screener of anxiety severity/impairment, two instruments measuring pregnancy anxiety, and one on prenatal distress. Birth outcomes and medical risk factors were obtained from medical records after birth. Structural equation modeling fit latent factors for each trimester from the four measures. Subsequent models tested whether the latent factors predicted gestational length, and unique effects of each measure. RESULTS: The third-trimester pregnancy anxiety latent factor predicted shorter gestational length adjusting for mother's age, education, parity, and obstetric risk. Scores on a four-item pregnancy-specific anxiety measure (PSAS) in third trimester added uniquely to prediction of gestational length. In first trimester, scores on the clinical screener (OASIS) uniquely predicted shorter gestational length whereas the latent factor did not. CONCLUSION: These results support existing evidence indicating that pregnancy anxiety is a reliable risk factor for earlier birth. Findings point to possible screening for clinically significant anxiety symptoms in the first trimester, and pregnancy-specific anxiety thereafter to advance efforts to prevent earlier delivery. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Assuntos
Ansiedade , Complicações na Gravidez , Gravidez , Lactente , Feminino , Humanos , Ansiedade/diagnóstico , Ansiedade/psicologia , Terceiro Trimestre da Gravidez , Complicações na Gravidez/diagnóstico , Complicações na Gravidez/psicologia , Primeiro Trimestre da Gravidez , Transtornos de Ansiedade
16.
Soc Identities ; 28(4): 544-569, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36935868

RESUMO

Arab Americans constitute a diverse, sizeable ethnic minority in the United States. However, limited research has examined the content of Arab American ethnic identity and whether this ethnic identity differs by demographic factors. In the present study, we developed measures of Arab American ethnic identity and cultural practice, and assessed differences in those variables by gender, religious affiliation (Muslim, Christian), and age. Arab American adults recruited online from Amazon Mechanical Turk (N = 391) completed an adaptation of the Multidimensional Inventory of Black Identity and a measure of cultural practice that was created for this study based on pre-existing scales. Items loaded onto dimensions of identity (ethnic centrality, private regard, public regard), and subscales showed invariance across gender and religious upbringing. When examining group differences in ethnic identity, we found that attitudes regarding being Arab American varied by gender, such that Arab American women reported higher private regard and lower public regard than men. In turn, participants raised in Muslim households reported higher ethnic centrality and cultural practice than those raised in Christian households, potentially related to Muslims' status as a religious minority in the United Status. Finally, young adults were lower in centrality and private regard than older adults, suggesting either that ethnic identity may develop into adulthood or that young adults' ethnic identity may be influenced by growing up in American society post-9/11. Taken together, findings illustrate the heterogeneity in the ethnic identity of Arab Americans; further research is needed to understand individual differences in Arab Americans' ethnic identity.

17.
Evol Psychol ; 19(0): 14747049211056160, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34870477

RESUMO

Hierarchies naturally emerge in social species, and judgments of status in these hierarchies have consequences for social relationships and health. Although judgments of social status are shaped by appearance, the physical cues that inform judgments of status remain unclear. The transition to college presents an opportunity to examine judgments of social status in a newly developing social hierarchy. We examined whether appearances-as measured by raters' judgments of photographs and videos-provide information about undergraduate students' social status at their university and in society in Study 1. Exploratory analyses investigated whether associations differed by participants' sex. Eighty-one first-year undergraduate students (Mage = 18.20, SD = 0.50; 64.2% female) provided photographs and videos and reported their social status relative to university peers and relative to other people in society. As hypothesized, when participants were judged to be more attractive and dominant they were also judged to have higher status. These associations were replicated in two additional samples of raters who evaluated smiling and neutral photographs from the Chicago Faces Database in Study 2. Multilevel models also revealed that college students with higher self-reported university social status were judged to have higher status, attractiveness, and dominance, although judgments were not related to self-reported society social status. Findings highlight that there is agreement between self-reports of university status and observer-perceptions of status based solely on photographs and videos, and suggest that appearance may shape newly developing social hierarchies, such as those that emerge during the transition to college.


Assuntos
Sinais (Psicologia) , Status Social , Adolescente , Feminino , Hierarquia Social , Humanos , Julgamento , Masculino , Estudantes
18.
Brain Behav Immun ; 98: 310-316, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34461235

RESUMO

Parasympathetic nervous system activity can downregulate inflammation, but it remains unclear how parasympathetic nervous system activity relates to antiviral activity. The present study examined associations between parasympathetic nervous system activity and cellular antiviral gene regulation in 90 adolescents (Mage = 16.28, SD = 0.73; 51.1% female) who provided blood samples and measures of cardiac respiratory sinus arrhythmia (RSA), twice, five weeks apart. Using a multilevel analytic framework, we found that higher RSA (an indicator of higher parasympathetic nervous system activity)-both at rest and during paced breathing-was associated with higher expression of Type I interferon (IFN) response genes in circulating leukocytes, even after adjusting for demographic and biological covariates. RSA was not associated with a parallel measure of inflammatory gene expression. These results identify a previously unrecognized immunoregulatory aspect of autonomic nervous system function and highlight a potential biological pathway by which parasympathetic nervous system activity may relate to health.


Assuntos
Antivirais , Sistema Nervoso Simpático , Adolescente , Feminino , Expressão Gênica , Frequência Cardíaca , Humanos , Masculino , Sistema Nervoso Parassimpático
19.
Psychoneuroendocrinology ; 133: 105371, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34399150

RESUMO

Hypothalamic pituitary adrenal gland (HPA) axis functioning has been linked with daily demands during adolescence. A ubiquitous, yet understudied daily demand in the lives of youth is the commute to school, which may be associated with the diurnal rhythm of cortisol as demonstrated in prior research among adults. The current study hypothesized that longer school commute times would be associated with altered HPA axis functioning as demonstrated by a heightened cortisol awakening response (CAR) and flatter diurnal slope. Additionally, given that the HPA axis follows a diurnal rhythm and adolescence is marked by changes in the circadian rhythm, adolescents with a more evening chronotype were hypothesized to evince even more altered HPA axis functioning in the face of long school commute times. A total of 269 adolescents (M = 16.38 years, SD = 0.74) provided saliva samples at wake, 15-min. post-wake, and 30-min. post-wake for the calculation of CAR and at dinnertime and bedtime for the calculation of diurnal slope, completed up to 8 nights of sleep actigraphy, and self-reported school commute time. Results suggest that more evening chronotype youth with longer school commute times evince a higher CAR, but not an altered diurnal slope. The present findings may have implications for adolescent mental health as higher CAR has been associated poor mental health and heightened stress.


Assuntos
Ritmo Circadiano , Sistema Hipotálamo-Hipofisário , Sistema Hipófise-Suprarrenal , Instituições Acadêmicas , Meios de Transporte , Adolescente , Ritmo Circadiano/fisiologia , Humanos , Hidrocortisona/análise , Sistema Hipotálamo-Hipofisário/fisiopatologia , Sistema Hipófise-Suprarrenal/fisiopatologia , Saliva/química , Fatores de Tempo , Meios de Transporte/estatística & dados numéricos
20.
J Health Psychol ; 26(7): 962-974, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-31216892

RESUMO

This study examined how discrimination changes over time, how discrimination is related to health and substance use, and whether discrimination spills over to affect the health of family members. Parent-adolescent dyads (N = 341) completed measures of discrimination, physical health, mental health, and substance use over 5 years. Actor-Partner Interdependence Models indicated that individuals' experiences of discrimination can spill over to some aspects of the family context, depending on who is experiencing discrimination (i.e. parent, adolescent) and the outcome (i.e. mental health, substance use). Results suggest that parent-reported discrimination may affect adolescent depression, and adolescent-reported discrimination can spill over to parents' substance use.


Assuntos
Relações Pais-Filho , Pais , Adolescente , Humanos
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