Applied Psychology, Neuropsychology and Physiological Psychology, Experimental and Cognitive Psychology, Clinical Psychology
9
Scopus Publications
Scopus Publications
Trauma-and Stress-Related Disorders Richard Alecsander Reichert, Thiago Marques Fidalgo, Nicoly Camile Mendes Reichert, Eduardo José Legal, Denise De Micheli, Dartiu Xavier da Silveira Neuropsychology and Substance Use Disorders Assessment and Treatment, 2025
Eating Disorders Richard Alecsander Reichert, Thiago Marques Fidalgo, Eduardo José Legal, Victor Hugo Silva Turnes, Kamila Peixoto de Souza, Dartiu Xavier da Silveira Neuropsychology and Substance Use Disorders Assessment and Treatment, 2025
Neuropsychological Assessment of Substance Use Disorders Richard Alecsander Reichert, Flávia Zacouteguy Boos, Eduardo José Legal, Claudia Berlim de Mello, Denise De Micheli, Fernanda Machado Lopes Neuropsychology and Substance Use Disorders Assessment and Treatment, 2025
Functional analysis of substance use and dependence Richard Alecsander Reichert, Eduardo José Legal, Simone Martin Oliani, Denis Roberto Zamignani Behavior Analysis and Substance Dependence Theory Research and Intervention, 2021
On-line Measurement of Working Memory in Individuals with Aphasia using Electroencephalographic Signals Fernando Concatto, Eduardo Jose Legal, Alejandro Rafael Garcia Ramirez Iberian Conference on Information Systems and Technologies Cisti, 2021 Recent advances in biosensing technology have allowed for a wider access to sophisticated data gathering tools, such as electroencephalography. These devices have the potential to be applied in several fields of study. In this paper, we investigate the application of a low-cost electroencephalography device in the context of the treatment of aphasia, a neurological condition that compromises the ability to communicate. Specifically, we aim to aid rehabilitation programs, allowing continual and online monitoring of the working memory capacity of aphasic patients. Evidence suggests that the main cause of difficulties in communication within aphasia lie in the deterioration of the ability to store and process data in the short term. We propose an analysis technique based on Event-Related Potentials and inferential statistics to provide a general score of working memory capacity. Preliminary results indicate that a low-cost, portable and wireless electroencephalography device is able to properly capture brain signals, which are then made available to a station that is responsible for analyzing and displaying the processed information to the rehabilitation professional.
Measuring working memory usage on aphasic individuals and analysis of emotional valence through electroencephalography Marcelus Luis Oldoni, Tiago Catecati, Eduardo José Legal, Marcelo Gitirana Gomes Ferreira, Alejandro Rafael Garcia Ramirez Computer Methods and Programs in Biomedicine Update, 2021 Recent studies discuss the use of brain-computer interfaces (BCI) in medicine, more specifically in the treatment of post-stroke conditions. Those studies seek to develop therapeutic, diagnostic, and rehabilitation strategies to provide a better quality of life. One of those approaches consists of stimulating working memory (WM) usage, which is closely related to language-processing observed in individuals with aphasia. Aphasia is a health condition, usually developed from a stroke, that compromises both oral and written communication skills. In this work, a low-cost non-invasive signal acquisition system based on electroencephalography (EEG) was used to analyze short-term changes in the spectral properties of the brain. An n-back application was developed to attend specific demands stimulating the working memory load during the experiments. As a result, it was possible to explore brain activity by performing the power spectral density analysis of theta (4–8 Hz), alpha (8–12 Hz) and beta (13–29 Hz) waves. Wavelets were used to perform time-frequency analysis. It was possible to verify that working memory could be activated for a longer period of time through the sessions. Besides, the evaluation of users' emotional valence was simultaneously developed to identify whether the user has a positive or negative emotional state. Four aphasic volunteers, two non-aphasic individuals and a neuropsychologist participated in the experience. This study affords preliminary results to aphasia treatment based on electroencephalography, being a pioneer experience in Brazil.
Subjective well-being: Linear relationships to character strengths Catiane Oliveira, Maiana Farias Oliveira Nunes, Eduardo José Legal, Ana Paula Porto Noronha Avaliacao Psicologica, 2016 Subjective Well-Being: Linear Relationships to Character Strengths Subjective well-being has been studied in relation to strengths and virtues.Principal references from Positive Psychology propose six virtues and 24 strengths, whereas subjective well-being is appraised by life satisfaction, positive and negative affects.This study aimed to analyze the association between the level of character strengths and subjective well-being.The authors used two scales, namely the Subjective Well-being Scale (EBES) and the Strengths Scale, with 237 university students.All strengths correlated significantly with at least one aspect of subjective well-being.Negative affect was significantly correlated to only two strengths: creativity and vitality.Life satisfaction items showed 16 significant correlations, and the general factor of subjective well-being also showed 16 significant correlations.The results have partially confirmed the theoretical assumptions.The authors discuss the influence of cultural aspects and the need to empirically test the assumptions of Positive Psychology.
Body dissatisfaction and common mental disorders in adolescents Fernanda de Azevedo Marques, Eduardo José Legal, Doroteia Aparecida Höfelmann Revista Paulista De Pediatria, 2012 OBJETIVO: Verificar a prevalência de insatisfação corporal em adolescentes e sua associação com fatores socioeconômicos, comportamentais, antropométricos e psicossociais, em especial a presença de transtornos mentais comuns. MÉTODOS: Foram estudados adolescentes de uma escola de Itajaí, nos quais foram realizadas medidas antropométricas para análise do índice de massa corpórea. Aplicou-se um questionário sobre dados pessoais e transtornos mentais comuns. O desfecho principal foi a presença da insatisfação corporal, sendo a análise ajustada dos fatores associados realizada por meio da regressão de Poisson. As razões de prevalência e seus respectivos intervalos de confiança de 95% (IC95%) foram calculados. RESULTADOS: Foram avaliados 214 adolescentes (77,5%) com idade média de 12,4 anos e predomínio do sexo feminino (65,4%). A maioria dos adolescentes avaliados foi classificada como eutrófica (79,4%) e 28,0% deles apresentaram escores indicativos de transtornos mentais comuns. A prevalência de insatisfação corporal foi de 74,3%, (IC95% 67,9-80,0). Dentre os fatores associados ao desfecho, destacaram-se: menor escolaridade materna, obesidade abdominal, percepção do estado nutricional como acima ou abaixo do peso, interferência da forma física em atividades diárias e relacionamentos. A presença de transtornos mentais comuns esteve associada, após análise ajustada, ao nível de 6,6% à insatisfação corporal. CONCLUSÕES: A maioria dos adolescentes possuía índice de massa corporal e circunferência da cintura dentro da normalidade; entretanto, grande parte relatou insatisfação com a imagem corporal, em ambos os sexos. Variáveis maternas e comportamentos relacionados ao peso corporal estiveram associados ao desfecho. Para transtornos mentais comuns, a associação foi próxima ao limiar de significância adotado.
