Alexandre Andrade
Room in IBEB
0.13
Contacts
E-mail: aandrade[at]ciencias.ulisboa.pt
Professional networks
Curriculum
Research topics
- Brain connectivity
- Electroencephalography (EEG)
- Functional Magnetic Resonance Imaging (fMRI)
- Non-invasive brain stimulation
Biography
Alexandre Andrade got his PhD in Biophysics from the University of Lisbon in 2001. He is assistant professor at the Physics Department of the Faculty of Sciences of the University of Lisbon since 2002. His main research interests are: development of methods for the study of brain function using functional magnetic resonance imaging and electroencephalography, realistic simulation of neuronal signals, application to the study of pathologies of the central nervous system.
Publications
Journal publications
(2021) MRI-related anxiety can induce slow BOLD oscillations coupled with cardiac oscillations, Clinical Neurophysiology 132(9), p. 2083-2090, Elsevier, doi:10.1016/j.clinph.2021.05.021
(2020) The boundaries of state-space Granger causality analysis applied to BOLD simulated data: A comparative modelling and simulation approach, Journal of Neuroscience Methods 341, doi:10.1016/j.jneumeth.2020.108758
(2020) The boundaries of state-space Granger causality analysis applied to BOLD simulated data: A comparative modelling and simulation approach, Journal of Neuroscience Methods 341, p. 108758, Elsevier, doi:10.1016/j.jneumeth.2020.108758
(2020) Verification of a Central Pacemaker in Brain Stem by Phase-Coupling Analysis Between HR Interval- and BOLD-Oscillations in the 0.10–0.15 Hz Frequency Band, Frontiers in Neuroscience 14, p. 922, Frontiers, doi:10.3389/fnins.2020.00922
(2019) MRI-related anxiety in healthy individuals, intrinsic BOLD oscillations at 0.1 Hz in precentral gyrus and insula, and heart rate variability in low frequency bands, PLoS ONE 14(5), p. e0216731, Public Library of Science San Francisco, CA USA, doi:10.1371/JOURNAL.PONE.0216731
(2019) MRI-related anxiety in healthy individuals, intrinsic BOLD oscillations at 0.1 Hz in precentral gyrus and insula, and heart rate variability in low frequency bands, PLoS ONE 14(5), PUBLIC LIBRARY SCIENCE 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA, doi:10.1371/JOURNAL.PONE.0216731
(2019) MRI-related anxiety in healthy individuals, intrinsic BOLD oscillations at 0.1 Hz in precentral gyrus and insula, and heart rate variability in low frequency bands, PLoS ONE 14(5), p. 359000, Cold Spring Harbor Laboratory, doi:10.1371/JOURNAL.PONE.0216731
(2019) “Switch-off” of respiratory sinus arrhythmia may be associated with the activation of an oscillatory source (pacemaker) in the brain stem, Frontiers in Physiology 10(JUL), p. 939, Frontiers, doi:10.3389/fphys.2019.00939
(2019) MRI-related anxiety in healthy individuals, intrinsic BOLD oscillations at 0.1 Hz in precentral gyrus and insula, and heart rate variability in low frequency bands, PLoS ONE 14(5), p. e0206675, Public Library of Science, doi:10.1371/JOURNAL.PONE.0216731
(2018) Synchronization of intrinsic 0.1-Hz blood-oxygen-level-dependent oscillations in amygdala and prefrontal cortex in subjects with increased state anxiety, European Journal of Neuroscience 47(5), p. 417-426, doi:10.1111/ejn.13845
(2017) Brain–heart communication: Evidence for “central pacemaker” oscillations with a dominant frequency at 0.1 Hz in the cingulum, Clinical Neurophysiology 128(1), p. 183-193, Elsevier, doi:10.1016/j.clinph.2016.10.097
(2017) Distinction between neural and vascular BOLD oscillations and intertwined heart rate oscillations at 0.1 Hz in the resting state and during movement, PLoS ONE 12(1), p. e0168097, Public Library of Science, doi:10.1371/journal.pone.0168097
(2017) Brain–heart communication: Evidence for “central pacemaker” oscillations with a dominant frequency at 0.1 Hz in the cingulum, Clinical Neurophysiology 128(1), p. 183-193, doi:10.1016/j.clinph.2016.10.097
(2015) Synthetic neuronal datasets for benchmarking directed functional connectivity metrics, PeerJ 2015(5), p. e923, PeerJ Inc., doi:10.7717/peerj.923
(2015) Synthetic neuronal datasets for benchmarking directed functional connectivity metrics, PeerJ 2015(5), p. e737v1, PeerJ Inc. San Francisco, USA, doi:10.7717/peerj.923
(2015) Causal inference in neuronal time-series using adaptive decomposition, Journal of Neuroscience Methods 245, p. 73-90, Elsevier, doi:10.1016/j.jneumeth.2015.02.013
(2014) Conectividade estrutural do cérebro: diferenças entre um cérebro normal e um cérebro com patologia, Saúde e Tecnologia ed. online Julho, p. e29-e38
(2014) Lag-based effective connectivity applied to fMRI: A simulation study highlighting dependence on experimental parameters and formulation, NeuroImage 89, p. 358-377, Academic Press, doi:10.1016/j.neuroimage.2013.10.029
(2014) Temporal clustering analysis to evaluate slow oscillations around 0.1 Hz, F1000Posters 5(818), url
(2014) Initiation of voluntary movements at free will and ongoing 0.1-Hz BOLD oscillations in the insula—A pilot study, Frontiers in Integrative Neuroscience 8(DEC), Frontiers Media SA, doi:10.3389/fnint.2014.00093
(2013) Instantaneous Granger Causality with the Hilbert-Huang Transform, ISRN Signal Processing 2013, p. 1-9, Hindawi Publishing Corporation, doi:10.1155/2013/374064
(2013) Imagem por ressonância magnética da vasculatura da pele humana: viabilidade no contexto cl{\'\i}nico
(2013) Automatic dissection and structural connectivity of the limbic system, Epilepsia 54, p. 308-309, url
(2013) Task-related functional connectivity in autism spectrum conditions: an EEG study using wavelet transform coherence, Molecular Autism 4(1), p. 1, doi:10.1186/2040-2392-4-1
(2012) Screening of obstructive sleep apnoea in awake subjects, Journal of Sleep Research 21(1), p. 202-203, url
(2012) A new approach for granger causality between neuronal signals using the empirical mode decomposition algorithm, Proceedings of the 9th IASTED International Conference on Biomedical Engineering, BioMed 2012 765, p. 158-165, doi:10.2316/P.2012.764-147
(2012) Sleep stage scoring using EMD and neural networks, Journal of Sleep Research 21(1), p. 203
(2012) Granger Causality Analysis Of Resting State Networks In Post-traumatic Epilepsy Patients, Epilepsia 53, p. 64
(2011) Resting-state functional connectivity analysis of posttraumatic epilepsy patients, Epilepsia 52, p. 179
(2011) Pipeline methodology for structural connectivity analysis: application to the normal brain, Ww4.Aievolution.Com 1(2005), p. 120718, url
(2011) An fMRI investigation of detection of semantic incongruities in autistic spectrum conditions, European Journal of Neuroscience 33(3), p. 558-567, Blackwell Publishing Ltd, doi:10.1111/j.1460-9568.2010.07503.x
(2011) Atypical EEG complexity in autism spectrum conditions: A multiscale entropy analysis, Clinical Neurophysiology 122(12), p. 2375-2383, Elsevier, doi:10.1016/j.clinph.2011.05.004
(2011) Functional brain connectivity and deactivation in new onset schizophrenia: A pilot study, European Psychiatry 26(S2), p. 946-946, Elsevier Masson, doi:10.1016/s0924-9338(11)72651-7
(2010) Screening of obstructive sleep apnea using Hilbert-Huang decomposition of oronasal airway pressure recordings, Medical Engineering and Physics 32(6), p. 561-568, Elsevier, doi:10.1016/j.medengphy.2010.01.008
(2010) Image empirical mode decomposition (IEMD) in dermoscopic images: Artefact removal and lesion border detection, Proceedings of the 7th IASTED International Conference on Signal Processing, Pattern Recognition and Applications, SPPRA 2010, p. 341-345, doi:10.2316/p.2010.678-061
(2010) Assessment of thalamic pathology in patients with unilateral mesial temporal lobe epilepsy and hippocampal sclerosis (MTLE-HS) by means of voxel-based morphometry (VBM), T2-relaxometry and ADC mapping, Epilepsia 51(SUPPL. 4), p. 32, url
(2009) Coherence analysis in three bands of the low frequency spectrum of resting-state fMRI datasets, NeuroImage 47, p. S168, Academic Press, doi:10.1016/s1053-8119(09)71806-3
(2009) On the influence of time-series length in EMD to extract frequency content: Simulations and models in biomedical signals, Medical Engineering and Physics 31(6), p. 713-719, Elsevier, doi:10.1016/j.medengphy.2009.02.001
(2008) The Valsalva maneuver revisited by wavelets, Revista Portuguesa de Cardiologia 27(4), p. 435-441, Sociedade Portuguesa de Cardiologia
(2007) Wavelet analysis of autonomic outflow of normal subjects on head-up tilt, cold pressor test, Valsalva manoeuvre and deep breathing, Experimental Physiology 92(4), p. 677-686, Wiley Online Library, doi:10.1113/expphysiol.2007.038026
(2006) Time - frequency analysis of brain connectivity with fMRI : A new method based on Wavelet Transform Coherence, signal 2002, p. 28834
(2005) Learning to like: A role for human orbitofrontal cortex in conditioned reward, Journal of Neuroscience 25(10), p. 2733-2740, Society for Neuroscience, doi:10.1523/JNEUROSCI.3360-04.2005
(2004) Application of Coherence Spectra to fmri Connectivity Studies, Neuroimage 22, p. e1400--e1401
(2003) Functional neuroimaging of conditioned reward in humans, Neuroimage 19(2), p. e18--e19
(2003) Coherence Spectra As A Tool For fmri Data Analysis, Neuroimage 19(2), p. e1490--e1491
(2003) A primal sketch of the cortex mean curvature: A morphogenesis based approach to study the variability of the folding patterns, IEEE Transactions on Medical Imaging 22(6), p. 754-765, IEEE, doi:10.1109/TMI.2003.814781
(2003) Frequency And Tissue Specificity Of fmri Very Low Frequency Fluctuations, Neuroimage 19(2), p. e1492--e1493
(2001) Detection of fMRI activation using Cortical Surface Mapping, Human Brain Mapping 12(2), p. 79-93, Wiley Online Library, doi:10.1002/1097-0193(200102)12:2<79::AID-HBM1005>3.0.CO;2-I
(2001) Multivariate analysis for fMRI data investigation and model checking, NeuroImage 13(6), p. 171, Elsevier, doi:10.1016/s1053-8119(01)91514-9
(2001) Scale space searches in cortical surface analysis of fMRI data, NeuroImage 13(6), p. 1290, Elsevier, doi:10.1016/s1053-8119(01)92604-7
(2000) Using functional a priori information for the statistical analysis of single subject multi-task fMRI paradigms, NeuroImage 11(5 PART II), p. S661, Elsevier, doi:10.1016/s1053-8119(00)91591-x
(2000) Cortical surface statistical parametric mapping, NeuroImage 11(5 PART II), p. S504, doi:10.1016/s1053-8119(00)91435-6
(1999) Correlation dimension maps of EEG from epileptic absences, Brain Topography 11(3), p. 201-209, Springer, doi:10.1023/A:1022281712161
(1999) Ambiguous results in functional neuroimaging data analysis due to covariate correlation, NeuroImage 10(4), p. 483-486, Academic Press, doi:10.1006/nimg.1999.0479
Conference publications
(2001) A mean curvature based primal sketch to study the cortical folding process from antenatal to adult brain, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 2208, p. 897-904, doi:10.1007/3-540-45468-3_107
Book chapters
Dissertations/Thesis
(2002) Academic record: Technological Physics Bachelor’s Degree at Faculdade de Ciências da Universidade de