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 - 10 de 19
  • PublicaçãoAcesso Aberto
    Digitalized transcranial electrical stimulation: a consensus statement
    2022-09-05 - Brunoni, André R; Ekhtiari, Hamed; Antal, Andrea; Auvichayapat, Paradee; Baeken, Chris; Benseñor, Isabela M; Bikson, Marom; Boggio, Paulo; Borroni, Barbara; Brighina, Filippo; Brunelin, Erome; Carvalho, Sandra; Caumo, Wolnei; Ciechanski, Patrick; Charvet, Leigh; Clark, Vincent P; Kadosh, Roi Cohen; Cotelli, Maria; Datta, Abhishek; Deng, Zhi-De; Raedt, Rudi De; Ridder, Dirk De; Fitzgerald, Paul B; Floel, Agnes; Frohlich, Flavio; George, Mark S; Ghobadi-Azbari, Peyman; Goerigk, Stephan; Hamilton, Roy H; Jaberzadeh, Shapour J; Hoy, Kate; Kidgell, Dawson J; Zonoozi, Arash Khojasteh; Kirton, Adam; Laureys, Steven; Lavidor, Michal; Lee, Kiwon; Lisanby, Sarah H; Loo, Colleen; Martin, Donel M; Miniussi, Carlo; Mondino, Marine; Monte-Silva, Katia; Morales-Quezada, Leon; Nitsche, Michael A; Okano, Alexandre H; Oliveira, Claudia S; Onarheim, Balder; Pacheco-Barrios, Kevin; Padberg, Frank; Nakamura-Palacios, Ester M; Palm, Ulrich; Paulus, Walter; Plewnia, Christian; Priori, Alberto; Rajji, Tarek K; Razza, Lais B; Rehn, Erik M; Ruffini, Giuliov; Schellhorn, Klaus; Zare-Bidoky, Mehran; Simis, Marcel; Skorupinski, Pawel; Suen, Paulo; Thibaut, Aurore; Valiengo, Leandro C L; Vanderhasselt, Marie-Anne; Vanneste, Sven; Venkatasubramanian, Ganesan; Violante, Ines R; Wexler, Anna; Woods, Adam J; Fregni, Felipe; Leite, Jorge
    Objective: Although relatively costly and non-scalable, non-invasive neuromodulation interventions are treatment alternatives for neuropsychiatric disorders. The recent developments of highly-deployable transcranial electric stimulation (tES) systems, combined with mobile-Health technologies, could be incorporated in digital trials to overcome methodological barriers and increase equity of access. The study aims are to discuss the implementation of tES digital trials by performing a systematic scoping review and strategic process mapping, evaluate methodological aspects of tES digital trial designs, and provide Delphi-based recommendations for implementing digital trials using tES. Methods: We convened 61 highly-productive specialists and contacted 8 tES companies to assess 71 issues related to tES digitalization readiness, and processes, barriers, advantages, and opportunities for implementing tES digital trials. Delphi-based recommendations (>60% agreement) were provided. Results: The main strengths/opportunities of tES were: (i) non-pharmacological nature (92% of agreement), safety of these techniques (80%), affordability (88%), and potential scalability (78%). As for weaknesses/ threats, we listed insufficient supervision (76%) and unclear regulatory status (69%). Many issues related to methodological biases did not reach consensus. Device appraisal showed moderate digitalization readiness, with high safety and potential for trial implementation, but low connectivity. Conclusions: Panelists recognized the potential of tES for scalability, generalizability, and leverage of digital trials processes; with no consensus about aspects regarding methodological biases. Significance: We further propose and discuss a conceptual framework for exploiting shared aspects between mobile-Health tES technologies with digital trials methodology to drive future efforts for digitizing tES trials.
  • PublicaçãoAcesso Aberto
    The acute impact of the early stages of COVID-19 pandemic in people with pre-existing psychiatric disorders: A systematic review
    2022-04-23 - Carvalho, Sandra; Coelho, Catarina G.; Kluwe-Schiavon, Bruno; Magalhães, Juliana; Leite, Jorge
    People with pre-pandemic health conditions are more vulnerable and more likely to suffer greater psychosocial impact due to the current COVID-19 pandemic and the lockdown measures. Thus, the objective of this work was to systematically review the impact of the early stages COVID-19 pandemic on people with pre-existing psychiatric disorders. The search was performed between 23 January and 2 September 2021 in PubMed, PsycINFO, and EMBASE. A total of 4167 published results were identified; however, only 49 were included in this review. Results show that there was considerable heterogeneity among studies, which resulted in a low consensus. However, it seems that the impact of the first stage of the COVID-19 pandemic on psychiatric disorders was two-fold: (1) an overall effect, in which people suffering from psychiatric disorders in general experienced more psychological distress and anxiety when compared to people who had no psychiatric diagnosis, and (2) a condition-specific effect, namely in people suffering from eating disorders and obsessive compulsive disorders. Moreover, the current work highlights that there were also some external factors that were related to worsening symptoms. For instance, unemployment or experiencing work and financial difficulties can be a trigger for greater distress during the pandemic for people with mood disorders, and being alone and in social isolation during the COVID-19 pandemic may actually increase substance use and relapse rates. Further studies are needed to prospectively investigate the long-term effects of the current COVID-19 pandemic on people with (pre)-existing psychiatric conditions and on the onset or deterioration of psychiatric-related symptoms in a larger number of participants, as well as exploring the long-term effects of the current pandemic on mental health.
  • 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; 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 Aberto
    Speed of Processing (SoP) Training Plus α-tACS in people with mild cognitive impairment: a double blind, parallel, placebo controlled trial study protocol
    2022-07-14 - Gonçalves, Óscar F.; Carvalho, Sandra; Leite, Jorge
    Several cognitive training programs, alone or in combination with non-invasive brain stimulation have been tested in order to ameliorate age-related cognitive impairments, such as the ones found in Mild Cognitive Impairment (MCI). However, the effects of Cognitive Training (CT)—combined or not—with several forms of non-invasive brain stimulation have been modest at most. We aim to assess if Speed of Processing (SoP) training combined with alpha transcranial alternating current stimulation (a-tACS) is able to increase speed of processing as assessed by the Useful Field of View (UFOV), when comparing to SoP training or active a-tACS alone. Moreover, we want to assess if those changes in speed of processing transfer to other cognitive domains, such as memory, language and executive functioning by using the NIH EXAMINER. We also want to test the mechanisms underlying these interventions, namely brain connectivity and coherence as assessed by electroencephalography (EEG). To that purpose, our proposal is to enroll 327 elders diagnosed with MCI in a double-blinded, parallel randomized clinical trial assessing the effects of combining SoP with alpha endogenous tACS (either active or sham) in people with MCI. Participants will perform an intervention that will last for 15 sessions. For the first 3 weeks, participants will receive nine sessions of the intervention, and then will receive two sessions per week (i.e., booster) for the following 3 weeks. They will then be assessed at 1, 3, and 6 months after the intervention has ended. This will allow us to detect the immediate, and long-term effects of the interventions, as well as to probe the mechanisms underlying its effects.
  • PublicaçãoAcesso Aberto
    Tailoring transcranial alternating current stimulation based on endogenous event-related P3 to modulate premature responses: A feasibility study
    2024-04-03 - Mendes, Augusto; Lema, Alberto; Carvalho, Sandra; Leite, Jorge
    Background Transcranial alternating current stimulation (tACS) is a brain stimulation method for modulating ongoing endogenous oscillatory activity at specified frequency during sensory and cognitive processes. Given the overlap between event-related potentials (ERPs) and event-related oscillations (EROs), ERPs can be studied as putative biomarkers of the effects of tACS in the brain during cognitive/sensory task performance. Objective This preliminary study aimed to test the feasibility of individually tailored tACS based on individual P3 (latency and frequency) elicited during a cued premature response task. Thus, tACS frequency was individually tailored to match target-P3 ERO for each participant. Likewise, the target onset in the task was adjusted to match the tACS phase and target-P3 latency. Methods Twelve healthy volunteers underwent tACS in two separate sessions while performing a premature response task. Target-P3 latency and ERO were calculated in a baseline block during the first session to allow a posterior synchronization between the tACS and the endogenous oscillatory activity. The cue and target-P3 amplitudes, delta/theta ERO, and power spectral density (PSD) were evaluated pre and post-tACS blocks. Results Target-P3 amplitude significantly increased after activetACS, when compared to sham. Evoked-delta during cue-P3 was decreased after tACS. No effects were found for delta ERO during target-P3 nor for the PSD and behavioral outcomes. Conclusion The present findings highlight the possible effect of phase synchronization between individualized tACS parameters and endogenous oscillatory activity, which may result in an enhancement of the underlying process (i.e., an increase of target-P3). However, an unsuccessful synchronization between tACS and EEG activity might also result in a decrease in the evoked-delta activity during cue-P3. Further studies are needed to optimize the parameters of endogenous activity and tACS synchronization. The implications of the current results for future studies, including clinical studies, are further discussed since transcranial alternating current stimulation can be individually tailored based on endogenous event-related P3 to modulate responses.
  • PublicaçãoAcesso Aberto
    Editorial: Optimization strategies for pain management with neuromodulation
    2022-09-15 - Pacheco-Barrios, Kevin; Carvalho, Sandra; Caumo, Wolnei; Fregni, Felipe; Leite, Jorge
    Chronic pain is a high-priority global health issue due to its high prevalence, impact on quality of life, and cost (1). In most cases, chronic pain is challenging to manage, and the existing treatment modalities have reported frequent and severe adverse events, including gastritis (2), cardiovascular complications [...]
  • PublicaçãoAcesso Aberto
    Efficacy and safety of repetitive transcranial magnetic stimulation and transcranial direct current stimulation in memory deficits in patients with Alzheimer's disease: Meta-analysis and systematic review
    2024-03-01 - Mendes, Augusto J.; Leite, Jorge; Fernandes, Sara M.; Rodrigues, Pedro F. S.; Conde, Ana; Rocha, Magda
    Repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS) are two of the most used non-pharmacological interventions for Alzheimer's Disease (AD). However, most of the clinical trials have focused on evaluating the effects on global cognition and not on specific cognitive functions. Therefore, considering that memory loss is one of the hallmark symptoms of AD, we aim to assess the efficacy and safety of tDCS and rTMS in memory deficits. For that, multilevel random effect models were performed considering the standardized mean difference (SMD) between active and sham stimulation. A total of 19 studies with 411 participants demonstrated positive effects in memory after tDCS (SMD=0.20, p = 0.04) and rTMS (SMD=0.44, p = 0.001). Subgroup analysis revealed that tDCS had greater efficacy when administered in temporal regions (SMD=0.32, p = 0.04), whereas rTMS was superior when applied in frontal regions (SMD=0.61, p < 0.001). Therefore, depending on the brain region of stimulation, both interventions produced a positive effect on memory symptoms in AD patients. Finally, the safety of both techniques was observed in the AD population after the reporting of almost no serious events.
  • 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.
  • PublicaçãoAcesso Aberto
    Executive impairments in obsessive compulsive disorder: A systematic review with emotional and non-emotional paradigms
    2020-02 - Tubío Fungueiriño, Maria; Fernandez Prieto, Montse; Carvalho, Sandra; Carracedo, Angel; Gonçalves, Óscar F.; Leite, Jorge
    Precedent: Impairments in executive functioning may be associated with compulsive symptoms in Obsessive Compulsive Disorder (OCD). The aim of this study was to conduct a systematic review of cognitive flexibility, inhibitory control and working memory in OCD patients. using emotional and non-emotional paradigms. Method: we reviewed research published in PubMed, Web of Science, PsychInfo, Scopus, Scielo, and ProQuest Psychology databases, from January 2008 to April 2019. The review followed a two-stage process. In the first stage, we selected only studies using neutral stimuli paradigms, while in the second we selected executive-emotional paradigms. Results: The first stage of the review provided 16 final results, while the second stage, with emotional stimuli, provided 3 results. Conclusions: There is some initial evidence for the existence of executive impairments in OCD, as expressed in the performance and/or processing of working memory inhibitory control and cognitive flexibility. There is also initial evidence that these latter two could be modulated by the presentation or mental representation of negative valence stimuli or images, as well as the presence of aversive contingencies.
  • PublicaçãoAcesso Restrito
    Transcranial direct current stimulation as an add-on treatment to cognitive-behavior therapy in first episode drug-naïve major depression patients: The ESAP Study Protocol
    2020-11-03 - Carvalho, Sandra; Gonçalves, Óscar F.; Brunoni, André R.; Fernandes-Gonçalves, Ana; Fregni, Felipe; Leite, Jorge
    Major Depressive Disorder (MDD) affects more than 264 million people worldwide. Current treatments include the use of psychotherapy and/or drugs, however ∼30% of patients either do not respond to these treatments, or do not tolerate the side effects associated to the use of pharmacological interventions. Thus, it is important to study non-pharmacological interventions targeting mechanisms not directly involved with the regulation of neurotransmitters. Several studies demonstrated that transcranial Direct Current Stimulation (tDCS) can be effective for symptoms relief in MDD. However, tDCS seems to have a better effect when used as an add-on treatment to other interventions.