HERMANO TAVARES
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Psiquiatria, Faculdade de Medicina - Docente
LIM/23 - Laboratório de Psicopatologia e Terapêutica Psiquiátrica, Hospital das Clínicas, Faculdade de Medicina
LIM/23 - Laboratório de Psicopatologia e Terapêutica Psiquiátrica, Hospital das Clínicas, Faculdade de Medicina
18 resultados
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conferenceObject An exploratory factor analysis of multiple addictive behaviors in a large sample of individuals seeking treatment for behavioral addictions and impulse control disorders(2023) TAVARES, Hermano; ANGELO, Daniela Lopes; REXENDE, Nicole R. C. B.- Examining the Gambling-Related Harms, Gambling Disorder, and Player Characteristics of Jogo do Bicho (an Illegal National Lottery) in a Representative Sample of Brazilian Lottery Players(2024) KIM, Hyoun S.; SANCHES, Marcos; MARIANI, Mirella Martins de Castro; HODGINS, David C.; TAVARES, HermanoWe investigated the demographics, gambling-related harms, and risk for gambling disorder (GD) associated with an illegal national lottery-type game called Jogo do Bicho that is culturally unique to Brazil in a sample of 5407 representative Brazilian lottery players. Participants reported on demographics, gambling behaviors, gambling-related harms, and GD. A total of 27.0% of the participants reported playing Jogo do Bicho in the past year. Jogo do Bicho was associated with greater risk of GD with 5.7% of current Jogo do Bicho players meeting diagnostic criteria. Jogo do Bicho was also associated with greater gambling-related harms. Older participants, males, individuals who self-identified as Black, and who were widowed were more likely to be current Jogo do Bicho players. Jogo do Bicho is a popular activity among legal lottery players in Brazil despite its illegal status and is associated with greater harms and increased risk of GD.
- Treatment effects and adherence of sexually compulsive men in a randomized controlled trial of psychotherapy and medication(2023) SCANAVINO, Marco D. T.; GUIRADO, Alia Garrudo; MARQUES, Joao Miguel; AMARAL, Maria Luiza Sant'Ana Do; MESSINA, Bruna; REIS, Sirlene Caramello Dos; BARROS, Vivian Boschesi; ABDO, Carmita Helena Najjar; TAVARES, Hermano; PARSONS, Jeffrey T.Background: Little attention has been given to efficacious treatment and adherence to treatment of compulsive sexual behavior (CSB). Aims: Randomized controlled trial investigated short-term psycho -dynamic group therapy followed by relapse prevention group (STPGP-RPGT) and pharmacological treatment (PT) for CSB men on sexual compulsivity and adherence. Method: 135 men, 38 (SD = 9) years old on average, were randomly assigned to 1) STPGP-RPGT; 2) PT; 3) Both. Participants completed measures at baseline, 25th, and 34th week. 57 (42.2%) participants dropped out between baseline and 25th week, and 68 (50.4%) between baseline and 34th week. 94 (69.6%) did not adhere (80% pills taken or attended 75% therapy sessions). Results: A significant interaction effect was found between time and group (F (4, 128) = 2.62, P = 0.038, ES = 0.08), showing who received PT improved less in sexual compulsivity than those who received STPGP-RPGT (t = 2.41; P = 0.038; ES = 0.60) and PT thorn STPGP-RPGT (t = 3.15; P = 0.007, ES = 0.74). Adherent participants improved more in sexual compulsivity than non-adherent at the 25th week (t = 2.82; P = 0.006, ES = 0.65) and 34th week (t = 2.26; P = 0.027, ES = 0.55), but there was no interaction effect, F (2, 130) = 2.88; P = 0.06; ES = 0.04). The most reported behavior (masturbation) showed greater risk of non-adherence (72.6%). Discussion and conclusions: Adherent participants improved better than non-adherent. Participants who received psychotherapy improved better than those who received PT. Methodological limitations preclude conclusions on efficacy.
conferenceObject A transdiagnostic model of impulsive dimensions based on clinical reality - The ACEDA model(2023) TAVARES, Hermano; ANGELO, Daniela Lopes; ANDRADE, Vinicius- Theoretical and Pragmatical Challenges in Game Studies in Brazil(2023) ANDRADE, Vinicius Oliveira de; MORAES, Yago Luksevicius de; TAVARES, HermanoBackground:The video game industry is increasing worldwide and Brazil is the leading market in South America. Abuse of video games has been an international concern for a few decades and the World Health Organization included gaming disorder in the 11th version of the International Classification of Diseases.Method:In this article, we cite some academic works and our own experiences to reflect about obstacles commonly found by researchers, beginning with the lack of a consensual definition of what is gaming. Then, we show some characteristics of the Brazilian scenario regarding research about gaming in general and clinical practices about gaming disorder in particular and discuss how sociopolitical traits may impact them.Conclusions:Finally, we discuss some options to avoid pathologizing normal behaviour and the importance of connections between psychiatrists and other groups from within and outside academia, such as researchers from game design and politicians, respectively. Arriere-plan:L'industrie des jeux video se developpe dans le monde entier et le Bresil est le marche principal d'Amerique du Sud. L'abus de jeux video est une preoccupation internationale depuis quelques decennies et l'Organisation mondiale de la sante a inclus le trouble du jeu dans la 11e version de la classification internationale des maladies.Methode:Dans cet article, nous passons en revue certains obstacles frequemment rencontres par les chercheurs, a commencer par l'absence de definition consensuelle de ce qu'est le jeu. Ensuite, nous montrons certaines caracteristiques du scenario bresilien concernant la recherche sur le jeu en general et les pratiques cliniques sur le trouble du jeu en particulier, et nous discutons de la maniere dont les caracteristiques sociopolitiques peuvent les influencer.Conclusion:Enfin, nous discutons de certaines options pour eviter de pathologiser un comportement normal et de l'importance des liens entre les psychiatres et d'autres groupes a l'interieur et a l'exterieur du monde universitaire, tels que respectivement les chercheurs en conception de jeux et les politiciens.
- A scoping review of the association between loot boxes, esports, skin betting, and token wagering with gambling and video gaming behaviors(2023) KIM, Hyoun S.; LESLIE, R. Diandra; STEWART, Sherry H.; KING, Daniel L.; DEMETROVICS, Zsolt; ANDRADE, Andre Luiz Monezi; CHOI, Jung-Seok; TAVARES, Hermano; ALMEIDA, Brittany; HODGINS, David C.Background and aims: Many new digital gambling-like activities such as loot boxes, esports betting, skin betting, and token wagering have recently emerged and grown in popularity. This scoping review aimed to: (a) synthesize the existing empirical research literature on gambling-like activities and their associations with gambling and video gaming behaviors, including problem gambling and video gaming; (b) identify sociodemographic, psychological, and motivational factors associated with engagement in gambling-like activities; and (c) identify research gaps and areas for further research. Methods: A systematic search of Ovid, Embsco, and ProQuest databases and Google Scholar was conducted in May 2021 and last updated in February 2022. The search yielded a total of 2,437 articles. Articles were included in the review if they were empirical studies that contained quantitative or qualitative results regarding the relationship between gambling-like activities and gambling or gaming. Results: Thirtyeight articles met inclusion criteria and were included in the review. Overall, the review results suggest that all forms of gambling-like activities were positively associated with gambling and gaming with small to medium effects. Gambling-like activity participation was also positively associated with mental distress and impulsivity. Gaps identified included a lack of inquiry into skin betting and token wagering, a lack of diversity in the research methods (i.e., mainly cross-sectional surveys), and a paucity of research that includes more ethnically, culturally, and geographically diverse populations. Discussion: Longitudinal studies with more representative samples are needed to examine the causal link between gambling-like activities and gambling and video gaming.
- Engagement and response to a psychoeducation program for family members of inpatients undergoing treatment for substance use disorder(2023) CAMARGO, Claudia Cristina de Oliveira; NETO, Francisco L.; TAVARES, HermanoThe goal of this study was to evaluate a sample of family members, among whom individuals were undergoing inpatient treatment for substance use disorder and identify predictors of engagement in a family support program. A total of 159 family nuclei were analyzed; 36 (22.6%) completed the program and 123 (77.4%) did not complete the program. Compared to nonparticipants, participants were majorly female (91.9%), younger (43.3 years old, SD = 16.5), unemployed, homemakers, and not financially independent (56.7%). The results showed the predominant participation of wives (29.7%) and offspring (mostly daughters, 27.0%). Participants also reported a higher rate of depressive symptoms (p = 0.003) and worse quality of life, primarily environmental. The frequency of domestic violence was higher among participants than among nonparticipants (27.9% vs. 9.0%, p = 0.005). Engagement in family support programs is the first challenge to overcome. The nonparticipants' profile shows the need to adopt engagement strategies that encompass males and facilitate the participation of breadwinning family members.
- A Systematic Review of Pharmacological Treatments for Internet Gaming Disorder(2023) SA, Rafael Richard Clorado de; COELHO, Sophie; PARMAR, Puneet Kaur; JOHNSTONE, Samantha; KIM, Hyoun Soo; TAVARES, HermanoObjective Internet gaming disorder (IGD) is an increasingly common behavioral addiction, with an estimated global prevalence of 3%. A variety of pharmacological treatments have been used to treat IGD, yet no review to date has synthesized clinical trials evaluating their efficacy. This systematic review therefore synthesized the literature reporting on clinical trials of pharmacological treatments for IGD. Methods We reviewed articles from MEDLINE, Embase, PubMed Central, CINAHL, and PsycINFO that were published as of March of 2022. A total of 828 articles were retrieved for review and 12 articles were included, reporting on a total of 724 participants.Results Most participants were male (98.6%), and all were currently living in South Korea. The most common drugs used to treat IGD were bupropion, methylphenidate, and a range of selective serotonin reuptake inhibitors. The Young Internet Addiction Scale was the most frequently used to measure gaming-related outcomes. All studies reported reduced symptoms of IGD from pre- to post-treatment. Across all clinical trials, IGD symptom reductions following the administration of pharmacological treatments ranged from 15.4% to 51.4%. A risk of bias assessment indicated that only four studies had a low risk of bias.Conclusion Preliminary results suggest that a wide array of pharmacological interventions may be efficacious in the treatment of IGD. Future studies using double-blind randomized controlled trial designs, recruiting larger and more representative samples, and controlling for psychiatric comorbidities are needed to better inform understanding of pharmacological treatments for IGD.
- Neuroimaging of Dopamine Transporter Density in the Striatum of Disordered Gamblers(2023) GUERRA, Renata Faro; BATISTA, Ilza Rosa; KIM, Hyoun S.; HOEXTER, Marcelo Queiroz; SHIH, Ming Chi; BRESSAN, Rodrigo Affonseca; TAVARES, HermanoThe aim of the present research was to add to the growing literature on dopamine and gambling disorder (GD) by assessing whether GD is associated with dopamine transporter (DAT) density in the ventral striatum compared to healthy controls and whether DAT density was associated with key characteristics of GD (e.g., abstinence, craving). In a cross-sectional investigation using single-photon emission computed tomography with a technetium-(99)m-labeled tropane derivative as a radiotracer with SPECT imaging, fifteen participants with GD and 15 controls (non-gambling individuals, matched for age, gender, handedness, and smoking status) were measured. The GD group completed self-reported questionnaires regarding gambling. Striatal DAT density did not differ between the two groups. Conversely, striatal DAT density correlated significantly with various measures of recent gambling, but not with measures of chronic gambling. Multivariate analysis, adjusted for age and smoking status, showed that DAT density in the left striatum correlated positively with time spent gambling and gambling craving in the last month, whereas DAT density in the right striatum correlated negatively with abstinence self-efficacy. The results suggests that DAT density in the striatum is associated with recent gambling activity and gambling expectation.
conferenceObject Impulse control disorder and addictive behaviors in compulsive buying disorder patients within and without the bipolar spectrum(2023) MARANSALDI, Renata Fernandes; FILOMENSKY, Tatiana Zambrano; TAVARES, Hermano