Publications - Functional Neuroimaging

  • The dream of God: how do religion and science see lucid dreaming and other conscious states during sleep? Frontiers in Psychology

    10/07/2020
    Teachings from religious traditions around the world offer important insights for scientific researchers today who want to understand the full range of LD phenomenology as it has emerged through history.
  • The impact of Ayahuasca on suicidality: results from a randomized controlled trial

    11/19/2019
    The findings suggest that ayahuasca may show potential as an intervention for suicidality. We highlight important limitations of the study, potential mechanisms, and future directions for research on ayahuasca as an intervention for suicidality.
  • Is perception the missing link between creativity, curiosity and schizotypy? Evidence from spontaneous eye-movements and responses to auditory oddball stimuli

    11/19/2019
    We further compared saliency maps finding that individuals high versus low in creativity and curiosity, respectively, exhibit differences in where they look. These findings may suggest a perception-based link between creativity and curiosity, but not schizotypy. Implications and limitations of these findings...
  • Modulation of serum brain-derived neurotrophic factor by a single dose of ayahuasca: observation from a randomized controlled trial

    07/10/2019
    The results suggest a potential link between the observed antidepressant effects of ayahuasca and changes in serum BDNF, which contributes to the emerging view of using psychedelics as an antidepressant.
  • Characterizing complex networks using entropy-degree diagrams: unveiling changes in functional brain connectivity induced by ayahuasca

    03/18/2019
    We show that the geodesic entropy is able to differentiate functional networks of the human brain associated with two different states of consciousness in the awaking resting state: (i) the ordinary state and (ii) a state altered by ingestion of the Ayahuasca....
  • Rapid antidepressant effects of the psychedelic ayahuasca in treatment-resistant depression: a randomized placebo-controlled trial

    06/19/2018
    This study brings new evidence supporting the safety and therapeutic value of ayahuasca, dosed within an appropriate setting, to help treat depression.
  • Short term changes in the proteome of human cerebral organoids induced by 5-MeO-DMT

    10/13/2017
    Here we used shotgun mass spectrometry to explore proteomic differences induced by 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT) on human cerebral organoids. Out of the 6,728 identified proteins, 934 were found differentially expressed in 5-MeO-DMT-treated cerebral organoids.
  • The Psychedelic State Induced by Ayahuasca Modulates the Activity and Connectivity of the Default Mode Network

    06/16/2015
    The experiences induced by psychedelics share a wide variety of subjective features, related to the complex changes in perception and cognition induced by this class of drugs.
  • Avaliação por Ressonância Magnética funcional e Estimulação Magnética Transcraniana da intervenção única da Terapia Espelho em pacientes após Acidente Vascular Cerebral isquêmico

    12/01/2012
  • Alterações da default mode network provocadas pela ingestão de Ayahuasca investigadas por Ressonância Magnética Funcional.

    05/02/2012
  • Uma Nova Interface Entre a Física e as Ciências Biológicas

    01/01/1999
  • Biomagnetismo: Aspectos Instrumentais e Aplicações

    01/01/2000
  • Theta Oscillations and Human Navigation a Magnetoencephalography Study

    01/01/2002
  • Magnetoencephalography in Epilepsy

    01/01/2003
  • fMRI in Epilepsy and Recent Advances in Spatial Memory Mapping

    01/01/2003
  • Shannon Entropy Applied to the Analysis of Event-Related fMRI Time Series

    01/01/2003
  • Spectroscopic Studies in Semiconductive Phosphate Glasses

    01/01/2003
  • Neuroimagens Funcionais

    01/01/2003
  • Contraversive Pushing in Non-Stroke Patients

    01/01/2004
  • Generalized Mutual Information fMRI Analysis: a Study of the TSallils q Parameter

    01/01/2004
  • Euterpe Olerácea (Açaí) as an Alternative Oral Contrast Agent in MR Imaging (MRI) of the Gastrointestinal (GI) System: Preliminary Results

    01/01/2004
  • Quantificando o excesso de ferro direto no corpo humano

    01/01/2004
  • Ressonância Magnética Funcional: as Funções do Cérebro Reveladas por Spins Nucleares

    01/01/2004
  • Localizando a Atividade Cerebral via Magnetoencefalografia

    01/01/2004
  • Posture Control in Pusher Syndrome: Inluence of Lateral Semicircular Canals

    01/01/2005
  • In Vivo Tissue Characterization Using Magnetic Techniques

    01/01/2005
  • SPECT and PET in Epilepsy: Principles and Clinical Applications

    01/01/2005
  • Spatiotemporal Evaluation of the Human Colon Motility using three-axis Fluxgates and Magnetic Markers

    01/01/2005
  • Fetal Source Extraction from Magnetocardiographic Recordings by Dependent Component Analysis

    01/01/2005
  • Liver iron concentration evaluated by two magnetic methods: MRI and Magnetic Susceptometry

    01/01/2005
  • Generalized mutual information tests applied to fMRI analysis

    01/01/2005
  • Brain Surface Reformatted Imaging (BSRI) in Surgical Planning for Resections Around Eloquent Cortex

    01/01/2006
  • Quantitative Aspects of Brain Perfusion Dynamic Induced by BOLD fMRI

    01/01/2006
  • MRI Relaxometry: Methods and Applications

    01/01/2006
  • Language and Motor fMRI Activation in Polymicrogyric Cortex

    01/01/2006
  • Variable fMRI Activation During two Different Language Tasks in a Patient with Cognitive Delay

    01/01/2007
  • Pushing behavior and hemiparesis: which is critical for functional recovery in pusher patients ? Case report

    01/01/2007
  • Dependent Component Analysis for the Magnetogastrographic Detection of Human Electrical Response Activity

    01/01/2007
  • Rapid BOLD fMRI signal loss in the primary motor cortex of a stroke patient

    01/01/2008
  • Quantitative Evaluation of Hemodynamic Response after Hypercapnia among Different Brain Territories by fMRI

    01/01/2008
  • A Numerical Study of the Kullback-Leibler Distance in Functional Magnetic Resonance Imaging

    01/01/2008
  • Formaldehyde Increases Magic Gel Dosimeter Melting Point and Sensitivity

    01/01/2008
  • Human Variability of fMRI Brain Activation in Response to Oculomotor Stimuli

    01/01/2008
  • A Semi-automated Algorithm for Studying Neuronal Oscillatory Patterns: Wavelet-based Time Frequency and Coherence Analysis

    01/01/2008
  • Non-extensive entropy and the extraction of BOLD spatial information in event-related functional MRI

    01/01/2009
  • Clinical Feasibility of Açai (Euterpe olerácea) Pulp as an Oral Contrast Agent for Magnetic Resonance Cholangiopancreatography

    01/01/2009
  • Generalized Relative Entropy in Functional Magnetic Resonance Imaging

    01/01/2009
  • Effects of diazepam on BOLD activation during the processing of aversive faces

    01/01/2010
  • The Stability of the Blood Oxygenation Level-Dependent Functional MRI Response to Motor Tasks Is Altered in Patients With Chronic Ischemic Stroke.

    01/01/2010
  • Detection of Auditory Cortex Activity by fMRI Using a Dependent Component Analysis

    01/01/2010
  • Brain tissue segmentation using q-entropy in multiple sclerosis magnetic resonance images.

    01/01/2010
  • From EEG to BOLD: Brain mapping and estimating transfer functions in simultaneous EEG-fMRI acquisitions

    01/01/2010
  • Obstructive Sleep Apnea Is Frequent in Patients with Hypertensive Intracerebral Hemorrhage and Is Related to Perihematoma Edema

    01/01/2010
  • Persistent pusher behavior after a stroke

    01/01/2011
  • Antecedent descriptions change brain reactivity to emotional stimuli: an fMRI study of an extrinsic and incidental reappraisal strategy

    01/01/2011
  • Magnetic Resonance Imaging Quantification of Cerebral Blood Flow and Cerebrovascular Reactivity to Carbon Dioxide in Normotensive and Hypertensive Rats

    01/01/2011
  • Seeing with the eyes shut: Neural basis of enhanced imagery following ayahuasca ingestion.

    01/01/2011
  • Neuroimaging in stroke and non-stroke pusher patients

    01/01/2011
  • Arterial Spin Labeling Measurements of Cerebral Perfusion Territories in Experimental Ischemic Stroke

    01/01/2012