Leandro Fernandes Malloy-Diniz

Leandro Fernandes Malloy-Diniz
Federal University of Minas Gerais | UFMG · Departamento de Saúde Mental

Ph. D.

About

333
Publications
211,575
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
4,327
Citations
Additional affiliations
August 2008 - present
Federal University of Minas Gerais
Position
  • Professor (Assistant)
January 2008 - January 2016
Federal University of Minas Gerais
Position
  • Professor (Assistant)
Education
January 2006 - April 2008
Federal University of Minas Gerais
Field of study
  • Pharmachology

Publications

Publications (333)
Article
Children and adolescents were largely affected by the psychosocial impact of the 2019-2022 pandemic. During this time, there was an increase in internalizing symptoms, screen and internet use, and internet addiction. However, the interaction of these variables are not fully understood in a stressful time. Here, we have a repeated cross-sectional st...
Article
Full-text available
Objective: To compare the distress level among Brazilian healthcare professionals during the coronavirus disease 2019 (COVID-19) pandemic and estimate risks by sex, age, and occupation. Methods: In a longitudinal cohort design, a nationally distributed online survey was used to collect data from 10,490 active healthcare professionals who worked dur...
Article
Full-text available
Although the Impact Event Scale–Revised is widely used, its factor structure is still controversial. Inaddition, its longitudinal measurement invariance (LMI) remains uninvestigated. In this sense, we carriedout three studies to investigate its psychometric properties. In Study 1, we evaluated the factorial structure ofthe scale comparing the diffe...
Article
Full-text available
Objective: The population's adhesion to measures to ensure social distancing represents a great management challenge in a pandemic context. Despite of evidence shown that social distancing is effective, lack of adherence still persists in many countries. Therefore, it is challenging to separate the effectiveness of government measures, from social...
Article
Full-text available
Background: The burden of mental disorders is likely to increase during the Covid-19 pandemic. Knowing the rate of psychological distress and mental disorders, its severity, and factors associated with psychological distress is strategical. Method: We analyzed online cross-sectional data from 164,881 health professionals and from 5,635 participants...
Article
Full-text available
Despite the ubiquity of multitasking, prior research has ignored potential carryover effects of concurrent task performance on the way individuals interpret subsequent consumption behaviors and decisions. This study evinces that extensive use of updating, an executive function central to multitasking and necessary for construing actions abstractly,...
Article
Full-text available
This paper deals with the problem of modeling counterfactual reasoning in scenarios where, apart from the observed endogenous variables, we have a latent variable that affects the outcomes and, consequently, the results of counterfactuals queries. This is a common setup in healthcare problems, including mental health. We propose a new framework whe...
Article
Full-text available
Purpose:This study aimed to compare the attention performance, by playing position, in elite Brazilian football players. Methods:A total of 66 professional players competing in the first division of the Brazilian Championship were evaluated. They were grouped according to their playing positions into 7 goalkeepers, 8 defenders, 15 fullbacks, 8 defe...
Conference Paper
Full-text available
A atenção é um estado dirigido da percepção que permite selecionar estímulos relevantes em detrimento dos irrelevantes. Evidências na literatura sugerem que atletas elite são capazes de perceber situações de jogo mais rapidamente e tomar melhores decisões técnico-táticas. Porém não se sabe os níveis atencionais são diferentes entre atletas de elite...
Preprint
BACKGROUND Human behavior is an important determinant of health outcomes. In addition to intrinsic public health challenges associated with the COVID-19 pandemic, in many countries, some individuals decided not to be vaccinated, streets were full of people, and businesses struggling to recover were partially open despite lockdown or "stay at home i...
Article
Background: Human behavior is crucial in health outcomes. Particularly, individual behavior is a determinant of the success of measures to overcome critical conditions, such as a pandemic. In addition to intrinsic public health challenges associated with COVID-19, in many countries, some individuals decided not to get vaccinated, streets were crow...
Preprint
Full-text available
Introduction: Emotional stability is considered to be a protective factor for suicidal behavior. Nonetheless, suicidality is the result of a complex interaction of protective and risk factors, a key one being financial difficulties. Objective: We aimed to investigate the association between emotional stability and suicidality in Brazilian individua...
Article
Families' health, safety, and economic stability were jeopardized during the pandemic. Parental stress is a risk factor for hostile and less supportive parenting. Parenting styles are a set of attitudes, feelings and behaviors related to parenting that modulate the child's psychosocial functioning and might impact on the adaptability to a stressful...
Conference Paper
Full-text available
Attention is a directed state of perception and one of the main cognitive abilities required in football match-play. It is a variable that discriminates performance levels of professional players from amateurs, experienced from non-experienced, and is further associated with the success of young players. To the best of our knowledge, there is no ro...
Article
Objetivo: Mulheres tem sido associadas, desde o início da pandemia com níveis mais elevados de stress e ansiedade. Esta breve comunicação visa avaliar a situação da violência doméstica contra a mulher no Brasil durante o isolamento social devido à pandemia da COVID-19. Métodos: Extraímos dados do Google Trends mostrando a magnitude das pesquisas so...
Article
Introdução: A Escala de Estilos de Tomada de Decisão é um instrumento desenvolvido para avaliar dois estilos decisórios distintos, o intuitivo/ heurístico vs. o deliberado/racional. Estudos anteriores verificaram que a adaptação brasileira da escala é adequada e apresenta boas propriedades psicométricas. O presente estudo apresenta parâmetros preli...
Article
Full-text available
Health professionals may be a vulnerable group to posttraumatic stress symptoms (PTSS) during the Coronavirus disease 2019 (COVID-19) pandemic. To investigate how health professionals who experienced a traumatic event are expressing PTSS and factors related to risk for higher PTSS symptomatology can inform how health professionals are facing their...
Article
Aims: This study aims to analyze the mechanisms through which the Covid-19 pandemic impacts on well-being at work and productivity. The secondary objective is to identify stress management strategies in the work environment during the pandemic time. Methods: This is an integrative review. Phase 1 consisted of a search for 2020 papers regarding m...
Preprint
Full-text available
The population's adhesion to measures to ensure social distancing represents a great management challenge. Evidence has shown that social distancing is effective. However, it is challenging to separate government measures from social distancing driven by personal initiatives. Theory: It is possible that the output of protective behaviors, such as a...
Article
Full-text available
The aime was to examine the factor structure, reliability and to obtain preliminary parameters of the Brazilian adaptation of the UPPS-P Impulsive Behavior Scale, a widely self-report measure used to assess impulsive behavior, in research and clinical setting. The scale is composed of 59 items assessing five factors of impulsivity: (1) positive urg...
Article
Full-text available
The COVID-19 pandemic led to changes in occupational behaviors, affecting millions of workers. This study aimed to assess changes in various perceptions about work at the beginning of the pandemic in Brazil, and six months later. 702 individuals of both sexes (566 females, 80.62%), aged between 16 and 75 years (M=41.8; SD=13.5), residents in 24 dif...
Preprint
Quality of Life (QoL) is a multidimensional estimate of biopsychosocial health and wellbeing.1 The COVID-19 pandemic led to an abrupt change in our lifestyle, demanding resilience and coping mechanisms2. Health care providers are in the frontline of COVID-19 patients’ diagnosis, treatment, and rehabilitation, and there is a well-documented impact o...
Article
Objective We investigated and validated the presence of emotion regulation profiles in an adult sample. Method In a cross-sectional study, 1165 individuals completed the Emotion Regulation Questionnaire (ERQ), Difficulties in Emotion Regulation Scale (DERS), Positive and Negative Affect Scale (PANAS), and Following Affective States Test (FAST). Sa...
Article
Full-text available
Objective: Our objective is to provide a descriptive analysis of the quality of life among a large sample of health professionals in the early days of the pandemic. Method: We surveyed in the first months of the pandemics with the logistical support of the Health ministry in Brazil reaching more than 200,000 varied health professionals, with qua...
Article
Full-text available
Introduction: Autism Spectrum Disorder (ASD) and Attention Deficit/Hyperactivity Disorder (ADHD) figures among the most common neurodevelopmental disorders. Despite having opposite stereotypes, both ADHD and ASD compromise, though in different ways, skills such as social interactions, communication skills, and social thinking, which may underlie di...
Preprint
Full-text available
Purpose This short communication aims to assess the situation of domestic violence against women in Brazil during social isolation due to the COVID-19 pandemic. Methods We extracted data from Google Trends showing the magnitude of searches on the topics domestic violence and complaint and then compared with the data of the complaint reports. Resu...
Article
Full-text available
Introduction: Emotion regulation refers to use of strategies to change or suppress a response to an affective experience and is an important component of an individual’s subjective wellbeing. Difficulties properly regulating emotions are related to psychopathological processes. Objective: This study assessed the factor structure of the Brazilian ve...
Article
Context Diagnostic competence in students is a major medical education goal. Adding instructional guidelines to prompt deliberate reflection fosters medical students’ diagnostic proficiency. This study investigates the effects of this teaching strategy on diagnostic accuracy in solving clinical cases of different complexity levels by novice and sen...
Article
Full-text available
The objective was to carry out the cross-cultural adaptation of the Decision Styles Scale (DSS) for Brazil. Translation and back-translation were carried out, evaluated by a committee of experts. DSS was answered by 1218 participants of both sexes (women = 816, 73.4%) aged between 18 and 64 (M = 26.68; SD = 8.32). A Multigroup Confirmatory Factor A...
Article
Full-text available
Previous studies investigating the relationship between executive functions (EFs) and motor competence (MC) in typically developing children have produced inconsistent findings regarding the association’s strength and nature. Thus, the present study aimed to explore the relationship between EFs and MC in typically developing children aged 6–11 year...
Preprint
Background: Knowing the rate of psychological distress and mental disorders, its severity, and factors associated with psychological distress is strategical during the COVID-19 pandemic.Method: We analyzed online cross-sectional data from 164,881 health professionals and from 5,635 participants from the general population in Brazil. The Global Seve...
Article
Full-text available
Evidence-based practices suggest that, besides early diagnosis and treatment, prevention and mental health promotion strategies are cost-beneficial, desirable resources to be adopted and encouraged by clinicians and policymakers. In particular, ‘‘lifestyle factors’’ such as physical activity, diet quality, less smoking, and sleep quality are strong...
Article
Full-text available
Introduction: The existence of a general factor related to psychiatric symptoms is supported by studies using a variety of methods in both clinical and non-clinical samples. Objective: This study aims to evaluate the replicability of the internal structure of the Brief Symptom Inventory of a large Brazilian sample. Methods: Participants were 6...
Article
Objective: Neurofibromatosis type 1 (NF1) is a common single genetic disorder. A rarely investigated source of phenotypic variance in NF1 is the genetic modifiers. In this study, we tested whether the Val66Met Brain-Derived Neurotrophic Factor polymorphism (BDNF) was associated with three memory aspects in a small NF1 sample: Working Memory, Visuos...
Preprint
Full-text available
The existence of a general factor related to psychiatric symptoms is supported by studies using a variety of methods and in both clinical and non-clinical samples. This study aims to evaluate the replicability of internal structure of the Brief Symptom Inventory in a large Brazilian sample. Participants were 6,427 Brazilian subjects (81% female). T...
Article
Full-text available
The covid-19 pandemic has been a disturbing experience of proximity to death. As the pandemic goes on, the mixed experience of loss of a close family or friends added to the unpredictability of economic changes and the social isolation can elicit negative manifestations of affection, and psychological distress. The whole experience negatively affec...
Article
Full-text available
The prevalence of mental health problems in the general population during a public calamity is high. In calamities, the number of patients who present with mental disorder outbreaks or crises may increase, but the necessary support systems to help them may be impaired if they have not been planned for. Although there are several models for addressi...
Article
Full-text available
This article continues our presentation of the Brazilian Psychiatric Association guidelines for the management of patients with suicidal behavior, with a focus on screening, intervention, postvention, prevention, and promotion. For the development of these guidelines, we conducted a systematic review of the MEDLINE (via PubMed), Cochrane Database o...
Preprint
Full-text available
The COVID-19 pandemics were an event where there was a rupture of the life pattern and people felt helpless and suffering, creating a need for basic things such as medical care and shelter against the environmental conditions. The healthcare professionals faced an unknown potential threat to life that made them work in an intense and fearful routin...
Article
Full-text available
Yearly, there are an estimated 213 million pregnancies worldwide.1 The coronavirus disease 2019 (COVID-19) pandemic, an unprecedented event, has affected millions worldwide and made pregnancy an international public health concern.
Article
Full-text available
O objetivo deste estudo foi comparar a atenção de atletas de futebol em diferentes categorias de base. Foram avaliados 321 atletas de futebol de 4 categorias: sub-14 (n=77), sub-15 (n=66), sub-17 (n=78) e sub-20 (n=99). Utilizou-se o Cognitrone Test para avaliar a atenção através das variáveis tempo de resposta (TR) medida em segundos e precisão da...
Article
Objective: Human T-cell leukemia virus type-I (HTLV-1) infection courses with a myelopathy, the Tropical Spastic Paraparesis (HAM/TSP). Method: In a case-control study, we compared the neuropsychological profile and functional characteristics in two case HTLV-1 infected groups, (asymptomatic and with HAM/TSP) with a control group negative for HTLV...
Article
Full-text available
Objective: The stigma toward individuals with mental disorders is highly prevalent, not only in the general population but among health care providers as well. The aim of this study was to identify subgroups based on stigmatizing beliefs related to psychiatric disorders among Brazilian psychiatrists, as well as to investigate their association with...
Article
Full-text available
O cenário da pandemia de COVID-19 representa um desafio sem precedentes para a sociedade. Em que pese a importância das medidas imediatas visando à prevenção da propagação da doença, cuidados com os indivíduos acometidos e medidas para minimizar os impactos econômicos e sociais, a abordagem de temas relacionados à saúde mental da população em geral...
Preprint
Full-text available
Worldwide, floods and drought are the most frequent extreme climate-related disasters with a potential that might affect children and adolescent mental health. This study aimed to describe mental health impact on youth exposed to flood or drought (time 1), to provide a prospective follow up of symptoms (time 2), about 15 months apart, and to compar...
Chapter
Attention-deficit/hyperactivity disorder (ADHD) is most often diagnosed in boys and may be underdiagnosed in girls. This diagnostic gap can be partly explained by the fact that female symptoms are less evident than male disruptive behaviors. In childhood, the male-to-female ratio of ADHD is 3:1. In adulthood, however, this ratio is close to 1:1. Al...
Book
O que são práticas baseadas em evidências? Por que isso é importante para a Psicologia? Neste ebook Danielle Costa, Bruno Souza, Clarice Ferreira e Leandro Malloy-Diniz fazem uma breve introdução ao tema, conceituando o significado de termos chave como "evidências", "ciência" e "pseudociência", discutindo algumas das dificuldades que encontramos ho...
Article
Full-text available
Este texto traz reflexões e orientações técnicas e científicas frente à pandemia do novo coronavírus, uma situação de crise e emergência com reflexos sociais, econômicos e na saúde das populações e dos profissionais expostos diretamente aos riscos de contaminação. O foco principal são os problemas de saúde mental, tendo em vista o temor pela exposi...
Article
Full-text available
Funções executivas permitem ao indivíduo resolver problemas complexos e lidar com novos contextos. Dentre elas, o planejamento é considerado uma função de alta ordem que está fortemente relacionada aos circuitos frontoestriatais, cujos déficits podem ser encontrados em diversos transtornos, como autismo, transtorno do déficit de atenção com hiperat...
Article
Full-text available
Objective To investigate the psychometric properties of the short or multimodal treatment study version of the Swanson, Nolan, and Pelham, Version IV (SNAP‐IV) scale, which measures attention‐deficit/hyperactivity disorder and oppositional defiant disorder symptoms. Methods Participants were 765 parents of children from 4 to 16 years old (641 non‐...
Article
Children with ADHD and ASD may present differences in the affective-motivational processes. We systematically review the literature regarding temporal discounting in children up to 12 years with ADHD and ASD. Six articles were included, five studies with ADHD children (n=231), one with ASD children (n=21), and all including typically developing chi...
Article
Full-text available
Objective: Parkinson's disease (PD) is often accompanied by stigma, which could contribute to a worse prognosis. The objective of this study is to identify the variables associated with stigma in PD patients who are candidates for deep brain stimulation (DBS). Methods: We investigated sociodemographic and clinical variables associated with stigm...
Article
Full-text available
Introduction: In this study, we proposed to investigate the association between infatuation/passionate love and impulsivity in a context of potential high impulsivity: adolescents with attention deficit and hyperactivity/impulsivity (ADHD) diagnosis compared with typically developing adolescents. Method: Impulsivity was understood as an exploratory...
Article
Full-text available
Objective: Aging studies regularly assume that years of education are a protective factor for baseline cognition. In developing countries with specific sociocultural issues, this relationship may not work as expected, and an unmet need remains for alternative resilience factors. This study aimed to analyze different moderators for the relationship...