Browsing by Author "Barbosa, F."
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- Effects of emotional valence and three-dimensionality of visual stimuli on brain activation: an fMRI studPublication . Dores, Artemisa Rocha; Almeida, I.; Barbosa, F.; Castelo-Branco, M.; Guerreiro, S.; Almeida, I.; Reis, M.; Sousa, L. de; Castro Caldas, A.Examining changes in brain activation associated with emotion-inducing stimuli is essential to the study of emotions. Due to the ecological potential of virtual reality in neurocognitive rehabilitation, inspection of whether brain activation in response to emotional stimuli can also be modulated by the three-dimensional properties of the images is now important. This study sought to test whether the activation of brain areas involved in the emotional processing of scenarios of different valences can be modulated by three dimensionality. It focused on the interaction effect among emotion-inducing stimuli of different emotional valences (pleasant, unpleasant and neutral valences) and visualization types (2D, 3D).
- Effects of emotional valence and three-dimensionality of visual stimuli on brain activation: an fMRI studyPublication . Dores, Artemisa Rocha; Almeida, I.; Barbosa, F.; Castelo-Branco, M.; Monteiro, L.; Reis, M.; Sousa, L. de; Caldas, A. CastroExamining changes in brain activation linked with emotion-inducing stimuli is essential to the study of emotions. Due to the ecological potential of techniques such as virtual reality (VR), inspection of whether brain activation in response to emotional stimuli can be modulated by the three-dimensional (3D) properties of the images is important. The current study sought to test whether the activation of brain areas involved in the emotional processing of scenarios of different valences can be modulated by 3D. Therefore, the focus was made on the interaction effect between emotion-inducing stimuli of different emotional valences (pleasant, unpleasant and neutral valences) and visualization types (2D, 3D). However, main effects were also analyzed.METHODS: The effect of emotional valence and visualization types and their interaction were analyzed through a 3x2 repeated measures ANOVA. Post-hoc t-tests were performed under a ROI-analysis approach. The results show increased brain activation for the 3D affective-inducing stimuli in comparison with the same stimuli in 2D scenarios, mostly in cortical and subcortical regions that are related to emotional processing, in addition to visual processing regions. This study has the potential of clarify brain mechanisms involved in the processing of emotional stimuli (scenarios’ valence) and their interaction with three-dimensionality.
- Estudo neurofisiológico do jogo patológicoPublication . Dores, Artemisa R.; Fernandes, R.; Geraldo, Andreia,; Macedo, I.; Barbosa, F.; Fernandes, C.O jogo patológico é uma dependência comportamental, segundo a Classificação Internacional de Doenças (CDI-11, WHO, 2019) e o Manual de Diagnóstio e Estatística das Perturbações Mentais (DSM-5; APA, 2013). Consiste num comportamento recorrente de jogo, apesar das consequências negativas em diversas áreas da vida do individuo. Nas últimas décadas diversos investigadores têm procurado identificar possíveis variáveis explicativas deste comportamento. De entre elas destaca-se o efeito de “near-win” [quase-ganho], que se refere a um resultado de perda, percecionado pelos jogadores como estando próximo do ganho. Um dos métodos utilizados no seu estudo é a eletroencefalografia (EEG), por permitir estudar a resposta neuronal aos diferentes tipos de resultado de uma jogada (i.e., ganho, perda ou casoganho).
- Exercise addiction, body dysmorphic disorder, and use of enhancement drugs during the COVID-19 pandemic confinement period: A transcultural studyPublication . Dores, Artemisa Rocha; Carvalho, I.; Burkauskas, J.; Beretta, V.; Ioannidis, K.; Simonato, P.; Gomez, A.; Demetrovics, Z.; Fujiwara, H.; Chamberlain, S.; Fineberg, N.; Barbosa, F.; Corazza, O.
- Measures of neuropsychological assessment as indicators of success in neuropsychological rehabilitation: an exploratory correlational studyPublication . Mendes, Liliana; Barbosa, F.; Reis, L.P.Neuropsychological assessment not only allows diagnosing possible neurocognitive impairments in domains such as attention, working memory, and executive functions, but can also provide useful information for the neuropsychological rehabilitation. By applying a set of valid neuropsychological tests to individuals with Acquired Brain Injury (ABI), and subsequently studying how patients’ performance in rehabilitation programs relates with measures that are commonly provided by these tests, we may obtain valuable predictors of individual success that can be considered in neuropsychological rehabilitation.
- A new fMRI paradigm to study behavioral and neural bases of visual working memoryPublication . Dores, Artemisa Rocha; Barbosa, F.; Almeida, I.; Guerreiro, S.; Rocha, B.M.; Carvalho, I.P.; Marques, A.J.; Sousa, L.D.; Castro-Caldas, A.Working memory (WM) is a cognitive process that refers to storing information in a temporary system that allows monitoring and handling this information.
- Web-based tools applied to therapy and counseling during the COVID-19 pandemicPublication . Dores, Artemisa Rocha; Geraldo, A.; Carvalho, I.; Barbosa, F.