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1.
J Trauma Stress ; 37(1): 57-68, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37985123

RESUMEN

One of the central symptoms of posttraumatic stress disorder (PTSD) is a heightened reactivity to trauma cues. The current study used experience sampling to investigate the associations between exposure to combat-related cues and PTSD symptoms in 93 U.S. veterans who served in support of recent military operations in Afghanistan and Iraq. We also examined the effects of peri- and postdeployment factors, including exposure to combat, unit support during deployment, and postdeployment social support on PTSD. Participants completed eight brief random surveys daily for 2 weeks using palmtop computers. The results indicated that more daytime exposure to trauma cues was associated with experiencing more PTSD symptoms at the within-person level, B = 3.18. At the between-person level, combat exposure, B = 4.20, was associated with more PTSD symptoms, whereas unit support, B = -0.89, was associated with experiencing fewer symptoms. At the cross-level interaction, unit support, B = -0.80, moderated the association between trauma cue exposure and PTSD symptom count. Contrary to our hypothesis, postdeployment social support, B = -0.59, was not associated with PTSD symptoms. These findings suggest a functional association between exposure to trauma cues and PTSD symptoms among recent-era U.S. veterans and underscore the importance of unit support during deployment.


Asunto(s)
Personal Militar , Trastornos por Estrés Postraumático , Veteranos , Humanos , Señales (Psicología) , Apoyo Social , Guerra de Irak 2003-2011 , Campaña Afgana 2001-
2.
AIDS Behav ; 28(3): 854-867, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37751109

RESUMEN

Numerous contextual factors contribute to risky sexual decision-making among men who have sex with men (MSM), with experimental laboratory-based studies suggesting that alcohol consumption, sexual arousal, and partner familiarity have the potential to impact condom negotiations during sexual encounters. The purpose of the current study was to extend this line of inquiry outside of the laboratory and into the everyday lives of MSM. We collected six weeks of daily data on alcohol consumption and sexual behaviors from 257 moderate- and heavy-drinking MSM to examine the within- and between-subjects effects of alcohol consumption, average daily sexual arousal, and partner familiarity on condom negotiation processes during sexual encounters. We hypothesized that alcohol consumption, higher levels of average daily sexual arousal, and greater partner familiarity would all contribute to a reduced likelihood of condom negotiation prior to sexual activity, and that they would also affect the difficulty of negotiations. Contrary to hypotheses, none of these three predictors had significant within-subjects effects on condom negotiation outcomes. However, partner familiarity and average daily sexual arousal did exert significant between-subjects effects on the incidence of negotiation and negotiation difficulty. These findings have important implications for risk-reduction strategies in this population. They also highlight the challenges of reconciling results from experimental laboratory research and experience sampling conducted outside of the laboratory on sexual risk behavior.


Asunto(s)
Infecciones por VIH , Minorías Sexuales y de Género , Masculino , Humanos , Condones , Homosexualidad Masculina , Negociación , Excitación Sexual , Evaluación Ecológica Momentánea , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Conducta Sexual , Etanol/farmacología , Consumo de Bebidas Alcohólicas/epidemiología , Parejas Sexuales
3.
Alcohol ; 2023 Dec 13.
Artículo en Inglés | MEDLINE | ID: mdl-38101524

RESUMEN

BACKGROUND: HIV transmission remains a significant health concern for men who have sex with men (MSM) in the United States. Heavy episodic drinking (HED) is related to increased rates of condomless anal intercourse (CAI) among MSM, though evidence suggests that this association may vary by individual difference factors. The present secondary analysis tested whether sexual alcohol expectancies (SAEs) moderate the associations between frequency of HED and anal intercourse (AI) with and without a condom among moderate-to-heavy drinking HIV- MSM. METHODS: Two hundred and forty-eight moderate-to-heavy drinking MSM completed self-report questionnaires including the Sexual Behavior Questionnaire, the Modified Daily Drinking Questionnaire, and the Sexual Alcohol Expectancies Questionnaire. RESULTS: Negative binomial regressions indicated that SAEs moderated the association between frequency of HED and AI with a condom, but not between the frequency of HED and condomless AI (CAI). CONCLUSIONS: These results suggest that stronger SAEs play a role in alcohol-related sexual behavior among MSM, but do not provide evidence that SAEs are associated with increased risk for HIV transmission through CAI.

4.
J Am Coll Health ; : 1-11, 2023 Sep 18.
Artículo en Inglés | MEDLINE | ID: mdl-37722885

RESUMEN

OBJECTIVE: Alcohol use is a substantial problem among college students and has several negative consequences. The current study examined the associations between anhedonia and alcohol use and related problems via impulsive behavior (e.g., negative urgency, sensation seeking). We parsed anhedonia into four specific facets: consummatory, anticipatory, recreational, and social anhedonia. PARTICIPANTS: Six hundred and forty college students aged 18-25 were included in the final analysis. METHOD: Data were collected via Amazon Mechanical Turk. Self-report inventories assessing for anhedonia, alcohol use, impulsive behavior, and depressed mood were utilized. RESULTS: Recreational consummatory anhedonia was negatively associated with alcohol use and alcohol-related problems through negative urgency. Recreational consummatory anhedonia also had significant negative associations with alcohol consumption via sensation seeking. Further, social anticipatory anhedonia was positively associated with alcohol use and related problems via negative urgency. CONCLUSIONS: This study highlights important associations between anhedonia, impulsivity, and alcohol use and related problems.

5.
Child Abuse Negl ; 144: 106390, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37572529

RESUMEN

BACKGROUND: Traumatic bonding, defined as attachment to a perpetrator of intimate partner violence (IPV), offers one explanation as to why many people with abusive romantic partners do not break off these relationships. But what individual-level risk factors make some victims of IPV more likely than others to develop traumatic bonding toward their partners? What is the nature of the potential association between traumatic bonding and PTSD symptoms? PARTICIPANTS: A path model tested the potential roles of childhood maltreatment and attachment insecurity as risk factors for traumatic bonding, as well as the potential association between traumatic bonding and PTSD symptoms, in a high-risk sample of 354 participants in current abusive relationships. RESULTS: As hypothesized, childhood maltreatment and attachment insecurity significantly predicted traumatic bonding over and above the effects of age, gender, and romantic love. In addition, attachment insecurity moderated the association between childhood maltreatment and traumatic bonding, such that at higher levels of attachment insecurity, the association between childhood maltreatment and traumatic bonding was stronger than at mean or lower levels of attachment insecurity. Traumatic bonding was positively associated with PTSD symptoms. CONCLUSIONS: Overall, the results support the role of childhood maltreatment as a risk factor for both traumatic bonding and PTSD symptoms and highlight the importance of attachment insecurity in these associations. This was the first study to examine a complex model of risk factors for traumatic bonding. Theoretical and clinical implications are discussed.


Asunto(s)
Violencia de Pareja , Trastornos por Estrés Postraumático , Humanos , Trastornos por Estrés Postraumático/etiología , Factores de Riesgo
6.
Behav Res Ther ; 167: 104356, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37392487

RESUMEN

Affective functioning is central to most contemporary models of alcohol use. However, the affective structure at the within- and between-person levels is rarely investigated nor is the differential predictive value of specific affect dimensions assessed across state and trait formats. We examined a) the structure of state and trait affect using experience sampling methodology (ESM) and b) predictive associations between the empirically derived affect facets and alcohol use. Participants were 92 heavy drinking college students aged 18-25 who completed 8 momentary assessments of their affect and drinking a day for 28-days. We found evidence for a single positive affect factor at both the within- (i.e., state) and between-person (i.e., trait) levels. We found a hierarchical factor structure for negative affect, represented by a general, superordinate dimension as well as facet-level sadness, anxiety, and anger dimensions. Associations between affect and alcohol use differed across trait and state levels and across specific types of negative affect. Lagged state positive affect and sadness as well as trait positive affect and sadness were inversely associated with drinking. Lagged state anxiety and trait general negative affect were positively associated with drinking. Thus, our study demonstrates how associations between drinking and affect can be studied in relation to general (e.g., general negative affect) and more specific aspects of affective experiences (e.g., sadness versus anxiety) concurrently within the same study and across trait and state levels of assessment.


Asunto(s)
Afecto , Evaluación Ecológica Momentánea , Humanos , Adulto , Adolescente , Adulto Joven , Emociones , Ansiedad , Tristeza , Consumo de Bebidas Alcohólicas/psicología
7.
Emotion ; 23(8): 2142-2155, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37104767

RESUMEN

Positive affect (PA) and negative affect (NA) are associated with goal pursuit in addition to dysregulated behavior. Affective dependence (i.e., the correlation between PA and NA) may be a marker for good self-regulation on the one hand (weaker dependence) and poor self-regulation on the other (stronger dependence). This study sought to elucidate the role of affective dependence as a predictor of goal pursuit and alcohol problems at the within- and between-person levels. Participants were 100 college students aged 18-25 years, who drank alcohol at least moderately, and completed a 21-day ecological momentary assessment study regarding affect, academic goal pursuit, idiographic goal pursuit, alcohol use, and alcohol problems. Multilevel time series models were estimated. Consistent with hypotheses, affective dependence predicted more alcohol problems and decreased academic goal pursuit at the within-person level. Importantly, effects on academic goal pursuit included perceived achievement and progress related to academics, as well as time spent studying, an objective marker for academic engagement. Effects were significant controlling for autoregressive effects, lagged residuals of PA and NA, concurrent alcohol use, day of the week, age, gender, and trait affective dependence. Thus, this study provides robust tests of lagged within-person effects of affective dependence. The effect of affective dependence on idiographic goal pursuit was not significant, contrary to hypothesis. Affective dependence was not significantly associated with alcohol problems or goal pursuit at the between-person level. Results suggest that affective dependence is a common factor explaining problems related to alcohol use and psychological functioning more broadly. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Asunto(s)
Trastornos Relacionados con Alcohol , Autocontrol , Humanos , Adolescente , Adulto Joven , Adulto , Consumo de Bebidas Alcohólicas/psicología , Motivación , Evaluación Ecológica Momentánea , Afecto
8.
Clin Psychol Sci ; 11(1): 40-58, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36865995

RESUMEN

This experiment tested mechanisms linking alcohol intoxication and analogue determinants of condomless anal intercourse (CAI) in a sample of 257 men who have sex with men (MSM). The two mechanisms tested were implicit approach biases toward CAI stimuli and executive working memory. Participants were randomized to 3 conditions (water control, placebo, or alcohol) and following beverage administration completed a working memory task, an Approach Avoidance Task of sexual vs. condom stimuli, and two video role-play vignettes of high-risk sexual scenarios. Sexual arousal and CAI intentions were assessed by self-report, and behavioral skills and risk exposure were derived from participants' role-play behavior. Estimation of four path models showed that the hypothesized mechanisms were supported for the CAI intention outcome, but the findings for the skills and risk exposure outcome were mixed. Implications for development and enhancement of HIV prevention interventions were discussed.

9.
Exp Clin Psychopharmacol ; 31(1): 174-185, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34968107

RESUMEN

This article presents data on the external validity of an alcohol administration study of sexual decision-making in men who have sex with men (MSM) ages 21-50. Men (N = 135) randomized to alcohol (blood alcohol concentration [BAC] = .075%) or water control conditions reported intentions to engage in condomless anal intercourse (CAI) in response to video vignettes. Following the experiment participants provided 6 weeks of experience sampling method (ESM) data assessing intoxication, sexual arousal, partner relationship, and sexual behavior. Laboratory CAI intentions were hypothesized to predict future CAI behavior, and associations were hypothesized to be conditional upon sexual arousal and intoxication contextual factors as well as laboratory beverage condition. The hypotheses were partially supported. CAI intentions were correlated with subject proportions of days engaging in CAI (r = .29). A multilevel analysis indicated, on average, CAI intention predicted increased probability of CAI versus anal intercourse with a condom (relative risk ratio [RRR] = 1.43). There was mixed evidence of CAI intentions effects being conditional upon laboratory condition as well as arousal and intoxication contextual factors. Graphs of conditional marginal effects identified regions of significance. Effects of CAI intention for men in the alcohol condition on the CAI versus No Sex contrast were significant when sexual arousal was elevated. CAI intentions for men in the water control condition predicted a higher probability of CAI versus anal intercourse with a condom when intoxication was moderately elevated and/or arousal moderately low. The results support the external validity of alcohol administration experiments of sexual decision-making among MSM and, reciprocally, provide support for the validity of ESM assessment of sexual behavior. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Asunto(s)
Infecciones por VIH , Minorías Sexuales y de Género , Masculino , Humanos , Adulto Joven , Adulto , Persona de Mediana Edad , Homosexualidad Masculina , Parejas Sexuales , Nivel de Alcohol en Sangre , Sexo Inseguro , Conducta Sexual , Condones , Etanol , Asunción de Riesgos
10.
J Affect Disord ; 320: 742-750, 2023 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-36179781

RESUMEN

INTRODUCTION: First responders are routinely and regularly exposed to traumatic events that can clinically manifest with a symptom constellation of posttraumatic stress disorder (PTSD), generalized anxiety, depression, and suicidality. METHODS: We used network analysis to examine baseline data from treatment seeking first responders (n = 308) to examine the interrelatedness of those constructs, including a measure of resilience. We estimated two models: a regularized partial correlation network and a Bayesian Directed Acyclic Graph (DAG). RESULTS: The models reveal converging evidence highlighting the central role of negative alterations in cognitions and mood PTSD cluster along with affective depression. These nodes did not significantly differ, though they were among the strongest in the partial correlation network and shared the most variance with the other nodes. The DAG results suggested that the negative alterations in cognitions and mood PTSD cluster predicted downstream constructs of affective depression; intrusion, hyperarousal, and avoidance PTSD clusters; and resilience. Only resilience and affective depression exhibited direct effects on suicidality. Both somatic depression and suicidality were endogenous endpoints in the DAG. Resilience exhibited an inverse path to suicide. However, resilience was relatively independent of the other constructs in the models and the DAG suggested that it was a consequence of PTSD related distress. LIMITATIONS: The data is cross-sectional in nature that should be followed up in longitudinal studies. CONCLUSION: Findings are discussed in respect to the role of distress and emotional dysregulation as common factors underlying a broad range of internalizing problems.


Asunto(s)
Socorristas , Trastornos por Estrés Postraumático , Suicidio , Humanos , Estudios Transversales , Teorema de Bayes , Trastornos por Estrés Postraumático/psicología
11.
J Fam Psychol ; 36(8): 1451-1461, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-35925715

RESUMEN

Perceived parental criticism is an important measure of the family emotional environment, linked to a variety of psychological difficulties in emerging adults (EAs) and traditionally assessed at a single timepoint. Our study is the first to examine perceived parental criticism as a dynamic construct that fluctuates and interacts with emerging adult (EA) affect across daily life. EAs (N = 141; ages 18-22; Mage = 19.94, 84.5% women) completed a measure of baseline depression symptoms and daily assessments of perceived parental criticism, anger, anxiety, shame, sadness, and happiness across 30 days. Within-person results revealed that previous day perceived parental criticism predicted subsequent day EA anger (but not vice versa). This cross-lagged association only emerged for anger and not other emotions. Additionally, depression moderated this association, with higher depression symptoms increasing the strength of the association. Between-person results revealed that parental criticism was positively associated with mean/trait anger, anxiety, shame, sadness, but not happiness, as well as affect reactivity (innovation variance) for anger. Associations with affect inertia were not significant. Together, these findings suggest parental criticism is more strongly related to negative than positive emotions, is proximally associated with anger in particular, especially among EAs with increased depression, and may be related to aspects of emotion dysregulation. Family interventions aiming to target negative emotionality in EAs should focus on mitigating criticism or educating parents on the importance of considering psychological health such as depression symptomology when providing critical feedback to minimize heightened negative affect or decrease the likelihood of emotional dysfunction in EAs. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Asunto(s)
Depresión , Emociones , Adulto , Femenino , Humanos , Adolescente , Adulto Joven , Masculino , Depresión/etiología , Depresión/psicología , Emociones/fisiología , Ansiedad/etiología , Ansiedad/psicología , Ira , Padres
12.
Drug Alcohol Depend ; 232: 109282, 2022 03 01.
Artículo en Inglés | MEDLINE | ID: mdl-35066459

RESUMEN

BACKGROUND: Condomless anal intercourse (CAI) is the major risk factor for HIV transmission among men who have sex with men (MSM). MSM who are heavier cannabis users engage in CAI more frequently. However, little is known about the processes that may underlie this association. This study sought to understand the potential role of condom attitudes and condom-related planning in the association between cannabis use and CAI. METHODS: This is a secondary data analysis of a study on alcohol use and sexual decision-making among MSM. Two hundred and fifty-eight MSM with moderate to heavy drinking were enrolled. Measures included CAI, cannabis use, attitudes about the influence of condoms on sexual pleasure, condom use planning, age, heavy episodic drinking, and use of pre-exposure prophylaxis (PrEP). RESULTS: We conducted a negative binomial regression analysis controlling for age, PrEP, and heavy episodic drinking. Cannabis use frequency was a significant predictor of CAI (b =.333, p < .001). Indirect effects showed that while heavier cannabis users exhibited less condom-related planning (b = -0.106, p = 0.015) and more negative attitudes toward the impact of condom use on pleasure (b= -0.177, p = 0.004), cannabis use had a significant indirect effect on CAI only through attitude ratings. CONCLUSIONS: MSM who are heavier cannabis users engage in more frequent CAI and exhibit an indirect effect on CAI through negative attitudes toward the impact of condoms on pleasure. These findings suggest the potential importance of addressing these condom attitudes in HIV-prevention interventions among MSM who use cannabis.


Asunto(s)
Cannabis , Infecciones por VIH , Profilaxis Pre-Exposición , Minorías Sexuales y de Género , Condones , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Homosexualidad Masculina , Humanos , Masculino , Conducta Sexual , Parejas Sexuales , Sexo Inseguro
13.
Eat Weight Disord ; 27(5): 1593-1602, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-34546555

RESUMEN

OBJECTIVE: Reinforcement Sensitivity Theory (RST) provides a theoretical foundation associated with various approach and avoidance behaviors and individual personality differences. Sensitivity to reward and punishment, two neural systems within the RST have been significantly associated with bingeing and purging behaviors. However, inconsistent findings are observed and specific factors mediating these relationships are not well understood. Deficits in emotion regulation may account for these relationships, as both negative urgency and distress tolerance have been independently associated with bulimia behaviors. Thus, this is an area that requires further investigation. METHOD: The current study utilized various self-report inventories, including the Eating Disorder Inventory-3rd Edition to measure bulimia symptoms, as well as measures of negative affect, sensitivity to reward and punishment, distress tolerance, and negative urgency. These measures were used to assess whether distress tolerance and negative urgency mediated associations between sensitivity to reward and punishment and bulimia symptoms in a community sample of 394 young adults ranging from the ages of 18 to 25. RESULTS: As expected, sensitivity to reward and punishment were significantly associated with decreased distress tolerance. Distress tolerance was also directly associated with greater negative urgency, which was significantly associated with increased bulimia symptoms. Consistent with hypotheses, indirect associations between sensitivity to reward and sensitivity to punishment to bulimia symptoms via distress tolerance and negative urgency were observed, controlling for gender and negative affect. DISCUSSION: Results contribute to understanding specific contributions of risk factors within the relationship of sensitivity to reward and punishment and bulimia symptoms, measured by the EDI-3. Novel to existing literature, results indicate that reinforcement sensitivity significantly contributes to emotion regulation deficits. Thus, these findings may have important implications for understanding the development and treatment of bulimia symptoms. LEVEL OF EVIDENCE: Level V, based on descriptive, cross-sectional data.


Asunto(s)
Bulimia Nerviosa , Bulimia , Regulación Emocional , Estudios Transversales , Humanos , Refuerzo en Psicología , Adulto Joven
14.
Psychol Trauma ; 14(5): 786-794, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-34370489

RESUMEN

OBJECTIVE: Affective and emotional dysregulation are consistently linked to greater alcohol use and related consequences, including risky sexual behavior. Moreover, these associations are even stronger among women with experiences of sexual assault. The current study tested affect, alexithymia, positive urgency, and negative urgency as predictors of alcohol use, alcohol-related consequences, and risky sexual behavior and the moderating impact of rape history on these associations among a sample of college women. METHOD: Participants were 1,005 college women between the ages of 18 and 25. Approximately 20% of the sample (n = 204) reported a history of rape since age 14. RESULTS: Positive and negative urgency statistically mediated the associations between negative affect and alexithymia and the alcohol and risky sex outcomes. Positive urgency was directly associated with alcohol use, while negative urgency was directly associated with alcohol-related consequences. Moreover, rape history moderated these associations, indicating that positive affect may be an important protective factor among women who have experienced rape. CONCLUSIONS: The current study identified important unique risk and protective pathways that may increase or reduce women's risk for alcohol-related consequences and risky sexual behavior. Importantly, these pathways are comprised of constructs that are malleable and modifiable and can be targeted and changed through intervention. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Asunto(s)
Violación , Adolescente , Adulto , Emociones , Femenino , Humanos , Violación/psicología , Asunción de Riesgos , Conducta Sexual/psicología , Universidades , Adulto Joven
15.
Arch Sex Behav ; 51(6): 2921-2929, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-34750775

RESUMEN

Risky sexual behaviors are a significant public health concern. Laboratory experiments are necessary to identify causal determinants of risky sexual behavior. However, experiments often rely on analogue sexual risk behavior, assessed by self-reported intentions in response to a sexual scenario. Using behavioral tasks to assess risk taking may be a valuable addition to self-reported intention outcome measures. The Balloon Analogue Risk Task (BART) is a commonly used measure of general risk-taking. However, BART's associations with sexual risk-taking have been mixed. In this pilot study, we developed a task akin to the BART, the Implicit Sexual Risk Assessment (ISRA), which incorporates sexual stimuli. We hypothesized sexual arousal would increase risk taking on ISRA relative to BART. Using a within-persons experimental design, 79 participants (52% women, mean age = 19.5 (SD = 1.42)) were randomized to condition (i.e., arousal versus neutral) and completed the BART and ISRA tasks. As expected, sexual arousal was associated with increased risk-taking (i.e., adjusted pumps) on ISRA relative to BART. However, this was unexpectedly the result of decreased pumps on BART instead of increased pumps on ISRA. Neither BART nor ISRA were significantly associated with sexual risk behavior or intentions. Null findings are qualified by the fact that sexual arousal was not significantly associated with sexual risk intentions.


Asunto(s)
Asunción de Riesgos , Conducta Sexual , Adulto , Nivel de Alerta , Toma de Decisiones , Femenino , Humanos , Masculino , Proyectos Piloto , Autoinforme , Adulto Joven
16.
Brain Behav ; 12(1): e2413, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34907666

RESUMEN

BACKGROUND: Posttraumatic stress disorder (PTSD) is associated with markers of accelerated aging. Estimates of brain age, compared to chronological age, may clarify the effects of PTSD on the brain and may inform treatment approaches targeting the neurobiology of aging in the context of PTSD. METHOD: Adult subjects (N = 2229; 56.2% male) aged 18-69 years (mean = 35.6, SD = 11.0) from 21 ENIGMA-PGC PTSD sites underwent T1-weighted brain structural magnetic resonance imaging, and PTSD assessment (PTSD+, n = 884). Previously trained voxel-wise (brainageR) and region-of-interest (BARACUS and PHOTON) machine learning pipelines were compared in a subset of control subjects (n = 386). Linear mixed effects models were conducted in the full sample (those with and without PTSD) to examine the effect of PTSD on brain predicted age difference (brain PAD; brain age - chronological age) controlling for chronological age, sex, and scan site. RESULTS: BrainageR most accurately predicted brain age in a subset (n = 386) of controls (brainageR: ICC = 0.71, R = 0.72, MAE = 5.68; PHOTON: ICC = 0.61, R = 0.62, MAE = 6.37; BARACUS: ICC = 0.47, R = 0.64, MAE = 8.80). Using brainageR, a three-way interaction revealed that young males with PTSD exhibited higher brain PAD relative to male controls in young and old age groups; old males with PTSD exhibited lower brain PAD compared to male controls of all ages. DISCUSSION: Differential impact of PTSD on brain PAD in younger versus older males may indicate a critical window when PTSD impacts brain aging, followed by age-related brain changes that are consonant with individuals without PTSD. Future longitudinal research is warranted to understand how PTSD impacts brain aging across the lifespan.


Asunto(s)
Trastornos por Estrés Postraumático , Adolescente , Adulto , Anciano , Envejecimiento , Encéfalo/diagnóstico por imagen , Encéfalo/patología , Femenino , Humanos , Aprendizaje Automático , Imagen por Resonancia Magnética/métodos , Masculino , Persona de Mediana Edad , Trastornos por Estrés Postraumático/diagnóstico por imagen , Adulto Joven
17.
Addict Behav ; 123: 107053, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34416533

RESUMEN

INTRODUCTION: Heavy episodic drinking poses a risk for HIV-infection, particularly among men who have sex with men (MSM). Previous research suggests implicit associations may play a role in heavy episodic drinking and that various executive functions (EF) may moderate the relation between implicit associations and heavy episodic drinking. This study investigated the role of two EF - working memory (maintaining and updating information) and response inhibition (inhibiting prepotent responses) - as moderators of the relation between implicit alcohol approach associations and heavy episodic drinking among moderate-to-heavy drinking MSM. METHODS: Two-hundred and fifty-one participants completed measures of implicit alcohol associations (the implicit alcohol approach association test - IAT), working memory, and response inhibition, as well as a self-report questionnaire assessing heavy episodic drinking. Regression analyses were conducted to examine whether the association between the IAT and heavy episodic drinking was moderated by working memory and response inhibition. RESULTS: Results showed that working memory moderated the relation between the alcohol IAT and heavy episodic drinking such that IAT alcohol approach scores were positively associated with heavy episodic drinking among those low in working memory but not those high in working memory. Response inhibition did not moderate the association between IAT scores and heavy episodic drinking. CONCLUSIONS: Results suggest that the relation between implicit alcohol approach associations and heavy episodic drinking is stronger among moderate-to-heavy drinking MSM with lower working memory capacity compared to those with higher working memory capacity, and these individuals may particularly benefit from alcohol intervention approaches that target automatic alcohol responses.


Asunto(s)
Homosexualidad Masculina , Minorías Sexuales y de Género , Consumo de Bebidas Alcohólicas/epidemiología , Etanol , Humanos , Masculino , Memoria a Corto Plazo
18.
Child Abuse Negl ; 114: 104939, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33548687

RESUMEN

BACKGROUND: Emotion regulation strategies may help explain the risk of experiencing posttraumatic stress disorder (PTSD) symptoms among adults with a history of child maltreatment. However, no study to date has examined the roles of both thought suppression and cognitive reappraisal in the association between childhood maltreatment and PTSD symptoms. OBJECTIVE: The current study sought to understand the associations between childhood maltreatment, thought suppression, cognitive reappraisal, and PTSD symptoms while controlling for negative affect and gender. PARTICIPANTS AND SETTING: Data were collected on 660 university students (71 % female) ages 18-25 between 2013 and 2014. Participants completed self-report measures of childhood maltreatment, PTSD symptoms, and emotion regulation strategies. METHOD: A structural equation model was tested to examine the direct and indirect effects from childhood maltreatment to PTSD symptoms via thought suppression and cognitive reappraisal, over and above gender and negative affect. RESULTS: Childhood maltreatment was directly associated with PTSD symptoms (ß = 0.28, SE = 0.04, p < .001). Childhood maltreatment also had a significant indirect effect on PTSD via cognitive reappraisal (ß = 0.01, CI 95 % [0.00, 0.03]), but not through thought suppression, although (ß = 0.01, CI 95 % [-0.00, 0.04]) thought suppression was significantly positively associated with PTSD symptoms (ß = 0.21, SE = 0.04, p < .001). CONCLUSION: The present study sheds light on the effect of childhood maltreatment and two commonly used emotion regulation strategies on PTSD symptoms.


Asunto(s)
Maltrato a los Niños , Regulación Emocional , Trastornos por Estrés Postraumático , Adolescente , Adulto , Niño , Cognición , Femenino , Humanos , Masculino , Autoinforme , Trastornos por Estrés Postraumático/epidemiología , Adulto Joven
19.
Arch Sex Behav ; 50(7): 2843-2860, 2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-33594529

RESUMEN

The purpose of this study was to examine the effects of alcohol intoxication and its interaction with contextual or situation (partner familiarity) and individual differences variables (effortful control, urgency, and whether taking pre-exposure prophylaxis (PrEP) medication) on sexual behaviors in men who have sex with men (MSM), a subgroup for whom HIV continues to be a major public health problem in the U.S. The participants were 236 men recruited from two northeastern U.S. cities and aged 21-50 years, M = 27.8). These men participated in a 6-week (two 3-week sampling bursts) experience sampling method (ESM) study. The ESM data were collected via use of software installed on the participant's own or study-provided mobile phone. Individual differences variables were measured by participants' completing questionnaires measuring effortful control and urgency, and the participant's self-report of whether he was currently taking PrEP. The ESM data pertained to sexual behavior as well as situation variables of familiarity of relevant sexual partners and number of standard alcohol drinks consumed. The results generally were consistent with hypotheses, as alcohol intoxication showed a curvilinear relation to the occurrence of condomless anal intercourse. Furthermore, the likelihood of occurrence of condomless anal sex increased with increased familiarity of the sexual partner. Similarly, taking PrEP increased the likelihood of occurrence of condomless anal sex. At the same time, alcohol's effects were moderated by all three individual differences variables as expected, but the prediction that partner familiarity would moderate alcohol's effects on the occurrence of condomless sex was not supported. Clinical implications of the findings center on the application of the data to HIV prevention programs toward inclusion of more empirically supported, nuanced information on the relation between acute alcohol intoxication and sexual behavior. Directions for further research address the need for additional testing and refinement of a person × situation approach to alcohol and sexual behavior. Furthermore, it is argued that it is important to refine further the concept of sexual risk in the context of taking PrEP and to conduct more detailed, multivariate studies of the relation between taking PrEP and patterns of sexual behavior.


Asunto(s)
Intoxicación Alcohólica , Fármacos Anti-VIH , Infecciones por VIH , Minorías Sexuales y de Género , Fármacos Anti-VIH/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/prevención & control , Homosexualidad Masculina , Humanos , Masculino , Asunción de Riesgos , Conducta Sexual , Parejas Sexuales
20.
Addict Behav ; 115: 106780, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33387974

RESUMEN

Childhood maltreatment is a strong risk factor for increased alcohol use and alcohol-related problems. One possible explanation for these associations is the influence of dysfunctional attachment styles and interpersonal problems in adulthood. Individuals who have experienced childhood maltreatment are likely to develop maladaptive interpersonal styles due to insecure attachment. Maladaptive interpersonal styles may increase emotional distress, which in turn, can make these individuals vulnerable to alcohol use and alcohol-related problems. Using data from 508 undergraduate students, this study examined the associations between three types of childhood maltreatment (i.e., sexual abuse, punishment that included physical abuse, and a negative home atmosphere that included neglect), alcohol use, and alcohol-related problems via insecure attachment and interpersonal problems. The results showed that punishment predicted alcohol problems via avoidant attachment and selfish interpersonal style. Sexual abuse and negative home atmosphere predicted alcohol consumption through anxious attachment and selfless interpersonal style. In addition, sexual abuse directly predicted alcohol problems. These findings provide new insights for the field of childhood maltreatment and addiction literature.


Asunto(s)
Maltrato a los Niños , Adulto , Consumo de Bebidas Alcohólicas , Ansiedad , Niño , Humanos , Apego a Objetos , Abuso Físico , Estudiantes
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