11 documents found, page 1 of 2
Desvendar o potencial da Ciência Aberta: perspetivas da engenharia biomédica e ...
Sayal, Alexandre; Direito, Bruno; Travassos, Carolina; Pereira, JoãoA Ciência Aberta potencia a partilha do conhecimento entre a comunidade científica e a sociedade. Mais do que acesso aberto de dados e publicações, é a construção de pontes no processo científico, promovendo transparência, acessibilidade e colaboração na investigação científica. A interoperabilidade (um dos princípios FAIR) é um aspeto chave. Neste sentido, a adoção de standards de dados e metadados é fundament...
Neurofeedback training of executive function in autism spectrum disorder: disti...
Pereira, Daniela Jardim; Morais, Sofia; Sayal, Alexandre; Pereira, João; Meneses, Sofia; Areias, Graça; Direito, Bruno; Macedo, AntónioBackground Deficits in executive function (EF) are consistently reported in autism spectrum disorders (ASD). Tailored cognitive training tools, such as neurofeedback, focused on executive function enhancement might have a significant impact on the daily life functioning of individuals with ASD. We report the first real-time fMRI neurofeedback (rt-fMRI NF) study targeting the left dorsolateral prefrontal cortex ...
Decoding Musical Valence and Arousal: Exploring the Neural Correlates of Music-...
Sayal, Alexandre; Guedes, Ana Gabriela; Almeida, Inês A. T.; Jardim Pereira, Daniela; Lima, César F.; Panda, Renato; Paiva, Rui Pedro; Sousa, TeresaMusic conveys both basic emotions, like joy and sadness, and complex ones, such as tenderness and nostalgia. Its effects on emotion regulation and reward have attracted much research attention, as the neural correlates of music-evoked emotions may inform neurorehabilitation interventions. Here, we used fMRI to decode and examine the neural correlates of perceived valence and arousal in music excerpts. Twenty pa...
Neurofeedback-dependent influence of the ventral striatum using a working memor...
Pereira, Daniela Jardim; Sayal, Alexandre; Pereira, João; Morais, Sofia; Macedo, António; Direito, Bruno; Castelo-Branco, MiguelExecutive functions and motivation have been established as key aspects for neurofeedback success. However, task-specific influence of cognitive strategies is scarcely explored. In this study, we test the ability to modulate the dorsolateral prefrontal cortex, a strong candidate for clinical application of neurofeedback in several disorders with dysexecutive syndrome, and investigate how feedback contributes to...
Assessing MR-compatibility of somatosensory stimulation devices: A systematic r...
Travassos, Carolina; Sayal, Alexandre; Direito, Bruno; Pereira, João; Sousa, Teresa; Castelo-Branco, MiguelFunctional magnetic resonance imaging (fMRI) has been extensively used as a tool to map the brain processes related to somatosensory stimulation. This mapping includes the localization of task-related brain activation and the characterization of brain activity dynamics and neural circuitries related to the processing of somatosensory information. However, the magnetic resonance (MR) environment presents unique ...
A Pattern Recognition Framework to Investigate the Neural Correlates of Music
Guedes, Ana Gabriela; Sayal, Alexandre; Panda, Renato; Paiva, Rui Pedro; Direito, BrunoMusic can convey fundamental emotions like happiness and sadness and more intricate feelings such as tenderness or grief. Understanding the neural mechanisms underlying music-induced emotions holds promise for innovative, personalised neurorehabilitation therapies using music. Our study investigates the link between perceived emotions in music and their corresponding neural responses, measured using fMRI. Fifte...
A Pattern Recognition Framework to Investigate the Neural Correlates of Music
Guedes, Ana Gabriela; Sayal, Alexandre; Panda, Renato; Paiva, Rui Pedro; Direito, BrunoMusic can convey fundamental emotions like happiness and sadness and more intricate feelings such as tenderness or grief. Understanding the neural mechanisms underlying music-induced emotions holds promise for innovative, personalised neurorehabilitation therapies using music. Our study investigates the link between perceived emotions in music and their corresponding neural responses, measured using fMRI. Fifte...
Identification of competing neural mechanisms underlying positive and negative ...
Sayal, Alexandre; Sousa, Teresa; Duarte, João V.; Costa, Gabriel Nascimento Ferreira da; Martins, Ricardo Filipe Alves; Castelo-Branco, MiguelHysteresis is a well-known phenomenon in physics that relates changes in a system with its prior history. It is also part of human visual experience (perceptual hysteresis), and two different neural mechanisms might explain it: persistence (a cause of positive hysteresis), which forces to keep a current percept for longer, and adaptation (a cause of negative hysteresis), which in turn favors the switch to a com...
Volitional Modulation of the Left DLPFC Neural Activity Based on a Pain Empathy...
Travassos, C.; Sayal, Alexandre; Direito, Bruno; Castelhano, João; Castelo-Branco, MiguelThe ability to perceive and feel another person’ pain as if it were one’s own pain, e.g., pain empathy, is related to brain activity in the “pain-matrix” network. A non-core region of this network in Dorsolateral Prefrontal Cortex (DLPFC) has been suggested as a modulator of the attentional-cognitive dimensions of pain processing in the context of pain empathy. We conducted a neurofeedback experiment using real...
Directly Exploring the Neural Correlates of Feedback-Related Reward Saliency an...
Direito, Bruno; Ramos, Manuel; Pereira, João; Sayal, Alexandre; Sousa, Teresa; Castelo-Branco, MiguelIntroduction: The potential therapeutic efficacy of real-time fMRI Neurofeedback has received increasing attention in a variety of psychological and neurological disorders and as a tool to probe cognition. Despite its growing popularity, the success rate varies significantly, and the underlying neural mechanisms are still a matter of debate. The question whether an individually tailored framework positively inf...