Leite, Jorge

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Jorge Leite
Jorge Leite obtained his PhD in 2011 from the University of Minho, where he also completed his Psychology Degree in 2005. From 2013 to 2016, he underwent postdoctoral training at the Neuromodulation Center, Spaulding Rehabilitation Hospital, Harvard Medical School. Currently, he holds the positions of Vice-Rector for Research, Associate Professor, and Coordinator of the CINTESIS.UPT. Throughout his career, he has made significant contributions to the field, with over 70 peer-reviewed publications, including articles in journals, book chapters, and conference proceedings. According to Scopus data, over half of his publications are featured in the top 25% of journals, while 45% are among the top 25% most cited documents globally. He has also supervised numerous MSc dissertations and is currently overseeing four PhD theses. Furthermore, he actively participates in various research projects, taking on roles such as Principal Investigator, Researcher, and Supervisor. These projects have successfully secured over 6M euros in funding. His dedication to his work has been recognized with seven awards and/or honors. Furthermore, he has collaborated with 167 fellow researchers in various scientific endeavors.
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CINTESIS.UPT - Centro de Investigação em Tecnologias e Serviços de Saúde
Centro de Investigação em Tecnologias e Serviços de Saúde (CINTESIS.UPT), former I2P, is an R&D unit devoted to the study of cognition and behaviour in context. With an interdisciplinary focus, namely on Education, Translational and Applied Psychology

Resultados da pesquisa

A mostrar 1 - 4 de 4
  • PublicaçãoAcesso Restrito
    Modulation of the cognitive event-related potential P3 by transcranial direct current stimulation: Systematic review and meta-analysis
    2022-01 - Mendes, Augusto J.; Pacheco-Barrios, Kevin; Lema, Alberto; Gonçalves, Óscar F.; Fregni, Felipe; Leite, Jorge; Carvalho, Sandra; Leite, Jorge
    Transcranial direct current stimulation (tDCS) has been widely used to modulate cognition and behavior. However, only a few studies have been probing the brain mechanism underlying the effects of tDCS on cognitive processing, especially throughout electrophysiological markers, such as the P3. This meta-analysis assessed the effects of tDCS in P3 amplitude and latency during an oddball, n-back, and Go/No-Go tasks, as well as during emotional processing. A total of 36 studies were identified, but only 23 were included in the quantitative analysis. The results show that the parietal P3 amplitude increased during oddball and n-back tasks, mostly after anodal stimulation over the left dorsolateral prefrontal cortex (p = 0.018, SMD = 0.4) and right inferior frontal gyrus (p < 0.001, SMD = 0.669) respectively. These findings suggest the potential usefulness of the parietal P3 ERP as a marker of tDCS-induced effects during task performance. Nonetheless, this study had a low number of studies and the presence of considerable risk of bias, highlighting issues to be addressed in the future.
  • PublicaçãoAcesso Restrito
    Evidence-based guidelines and secondary meta-analysis for the use of transcranial direct current stimulation (tDCS) in neurological and psychiatric disorders
    2021-04 - Fregni, Felipe; El-Hagrassy, Mirret M.; Pacheco-Barrios, Kevin; Carvalho, Sandra; Leite, Jorge; Simis, Marcel; Brunelin, Jerome; Nakamura-Palacios, Ester Miyuki; Marangolo, Paola; Venkatasubramanian, Ganesan; San-Juan, Daniel; Caumo, Wolnei; Bikson, Marom; Brunoni, André R.; Leite, Jorge
    Transcranial direct current stimulation (tDCS) has shown promising clinical results, leading to increased demand for an evidence-based review on its clinical effects. Objective We convened a team of tDCS experts to conduct a systematic review of clinical trials with more than one session of stimulation testing: Pain, Parkinson’s Disease Motor Function and Cognition, Stroke Motor Function and Language, Epilepsy, Major Depressive Disorder, Obsessive-Compulsive Disorder, Tourette Syndrome, Schizophrenia and Drug Addiction. Methods Experts were asked to conduct this systematic review according to the search methodology from PRISMA guidelines. Recommendations on efficacy were categorized into: Levels A (definitely effective), B (probably effective), C (possibly effective) or no recommendation. We assessed risk of bias for all included studies to confirm whether results were driven by potentially biased studies. Results Although most of the clinical trials have been designed as proof-of-concept trials, some of the indications analyzed in this review can be considered as definitely effective (Level A) such as depression, probably effective (Level B) such as neuropathic pain, fibromyalgia, migraine, post-operative patient-controlled analgesia and pain, Parkinson´s disease (motor and cognition), stroke (motor), epilepsy, schizophrenia and alcohol addiction. Assessment of bias showed that most of the studies had low risk of biases and sensitivity analysis for bias did not change these results. Effect sizes vary from 0.01 to 0.70 and were significant in about 8 conditions, with largest effect size being in postoperative acute pain, and smaller in stroke motor recovery (nonsignificant when combined with robotic therapy). Conclusion All recommendations listed here are based on current published Pubmed-indexed data. Despite high level of evidence in some conditions, it needs to be underscored that effect sizes and duration of effects are often limited; thus, real clinical impact needs to be further determined with different study designs.
  • PublicaçãoAcesso Aberto
    Working memory training coupled with transcranial direct current stimulation in older adults: A randomized controlled experiment
    2022-04-12 - Teixeira-Santos, Ana C.; Moreira, Célia S.; Pereira, Diana R.; Pinal, Diego; Fregni, Felipe; Leite, Jorge; Carvalho, Sandra; Sampaio, Adriana; Leite, Jorge
    Background: Transcranial direct current stimulation (tDCS) has been employed to boost working memory training (WMT) effects. Nevertheless, there is limited evidence on the efficacy of this combination in older adults. The present study is aimed to assess the delayed transfer effects of tDCS coupled with WMT in older adults in a 15-day follow-up. We explored if general cognitive ability, age, and educational level predicted the effects. Methods: In this single-center, double-blind randomized sham-controlled experiment, 54 older adults were randomized into three groups: anodal-tDCS (atDCS)+WMT, sham-tDCS (stDCS)+WMT, and double-sham. Five sessions of tDCS (2 mA) were applied over the left dorsolateral prefrontal cortex (DLPFC). Far transfer was measured by Raven’s Advanced Progressive Matrices (RAPM), while the near transfer effects were assessed through Digit Span. A frequentist linear mixed model (LMM) was complemented by a Bayesian approach in data analysis. Results: Working memory training improved dual n-back performance in both groups submitted to this intervention but only the group that received atDCS+WMT displayed a significant improvement from pretest to follow-up in transfer measures of reasoning (RAPM) and short-term memory (forward Digit Span). Near transfer improvements predicted gains in far transfer, demonstrating that the far transfer is due to an improvement in the trained construct of working memory. Age, formal education, and vocabulary score seem to predict the gains in reasoning. However, Bayesian results do not provide substantial evidence to support this claim. Conclusion: This study will help to consolidate the incipient but auspicious field of cognitive training coupled with tDCS in healthy older adults. Our findings demonstrated that atDCS may potentialize WMT by promoting transfer effects in short-term memory and reasoning in older adults, which are observed especially at follow-up.
  • PublicaçãoAcesso Aberto
    Transcranial direct current stimulation decreases P3 amplitude and inherent Delta activity during a waiting impulsivity paradigm: Crossover study
    2024-02-07 - Mendes, Augusto J.; Galdo-Álvarez, Santiago; Lema, Alberto; Carvalho, Sandra; Leite, Jorge
    The inability to wait for a target before initiating an action (i.e., waiting impulsivity) is one of the main features of addictive behaviors. Current interventions for addiction, such as transcranial Direct Current Stimulation (tDCS), have been suggested to improve this inability. Nonetheless, the effects of tDCS on waiting impulsivity and underlying electrophysiological (EEG) markers are still not clear. Therefore, this study aimed to evaluate the effects of neuromodulation over the right inferior frontal gyrus (rIFG) on the behavior and EEG markers of reward anticipation (i.e., cue and target-P3 and underlying delta/theta power) during a premature responding task. For that, forty healthy subjects participated in two experimental sessions, where they received active and sham tDCS over the rIFG combined with EEG recording during the task. To evaluate transfer effects, participants also performed two control tasks to assess delay discounting and motor inhibition. The active tDCS decreased the cue-P3 and target-P3 amplitudes, as well as delta power during target-P3. While no tDCS effects were found for motor inhibition, active tDCS increased the discounting of future rewards when compared to sham. These findings suggest a tDCS-induced modulation of the P3 component and underlying oscillatory activity during waiting impulsivity and the discounting of future rewards.