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
6 resultados
Resultados de Busca
Agora exibindo 1 - 6 de 6
- 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.
- 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.
- 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.
- A Systematic Review of Eye-Tracking Studies of Gambling-Related Attentional Biases(2023) TAKAHASHI, Rachel Emy Straus; KIM, Hyoun S.; COELHO, Sophie G.; TAVARES, HermanoPrevious research has identified attentional biases towards addiction-related stimuli, including gambling-related stimuli. Eye-tracking is considered the gold standard methodology for measuring attentional biases, yet no review to date has examined its use in measuring gambling-related attentional biases. This systematic review synthesized the literature using eye-tracking to examine attentional biases among people who gamble. We reviewed articles from Web of Science and PubMed that were published from 1990 to 2021. A total of 11 articles were included, with sample sizes ranging from 38 to 173 participants. Of these studies, seven examined attentional biases for gambling-related visual stimuli. These seven studies provided support that gambling can result in the development of an attentional bias for gambling-related stimuli. With respect to correlates of gambling-related attentional biases, there were mixed results. Some studies identified significant positive associations between gambling-related attentional biases and psychosocial variables, such as problem gambling severity, gambling expectancies, gambling cravings, gambling motives, depressive symptom severity, alcohol use severity, daily stress, affective impulsivity, and immersion. Four studies examined attentional biases for responsible gambling messaging and advertisements, finding that both people who do and do not gamble attend less to responsible gambling messaging compared to other types of information such as the betting odds. Research using eye-tracking to examine attentional biases among people who gamble is in its infancy. Yet, the preliminary results support the identification of attentional biases using the gold-standard methodology. Further studies are needed to examine the correlates and potential clinical utility of assessing gambling-related attentional biases using eye-tracking.
- Tai Chi Chuan evidence related to impulsivity and impulse related disorders: A scoping review(2024) SILVA, Djanira Ribeiro da; ROHDE, Ciro Blujus dos Santos; TAVARES, HermanoBackground: The purpose of this study was to review the evidence for the potential of Tai Chi Chuan (TCC) as a model of meditative movement in benefiting people with impulsivity related disorders and provide guidance for future research. Methods: A scoping review of the literature was conducted in five databases. Eligibility criteria were original articles reporting TCC based interventions or included TCC techniques and provided any assessment on impulsivity or related measures, impulse control disorders, or other psychiatric disorders related to impulsivity (e.g., addictive disorders, ADHD, and other conduct disorders). Twenty-eight out of 304 studies initially retrieved were reviewed. The reports concentrated mostly on neurodegenerative conditions, cognitive decline, and substance use disorders (SUD). Results: TCC had several positive effects in cognitive domains resulting in improvements in memory, executive functions, inhibitory control, attention, and verbal fluency. These improvements in memory, executive function, including inhibitory control and attention, and verbal fluency were associated with changes in the brain plasticity, resting activity, and other neurobiological markers. Conclusion: Albeit no study was found on the use of TCC in impulse control disorders or impulse related conditions, other than SUD, the findings suggest that considering the behavioral impact of TCC, especially the improvement of executive functions, it could be a valuable therapeutic tool for approaching impulse control related disorders.