CG Benar

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Current situation: Inserm Researcher ("Chargé de recherche 1ère classe")

Research interests: 1) Understanding of the link between multimodal signals based on simultaneous recordings 2) Development of signal processing methods for characterizing dynamic brain networks.

My CV: View

Google scholar profile

Follow my projects and find reprints on Research Gate

Dynamap page on the INS web site

Peer-reviewed publications as first, last, corresponding author

Roehri N, Lina JM, Mosher JC, Bartolomei F, Benar CG. Time-Frequency Strategies for Increasing High-Frequency Oscillation Detectability in Intracerebral EEG. IEEE Trans Biomed Eng. 2016 Dec;63(12):2595-2606. Pubmed ResearchGate

Gavaret M, Dubarry AS, Carron R, Bartolomei F, Trébuchon A, Bénar CG. Simultaneous SEEG-MEG-EEG recordings Overcome the SEEG limited spatial sampling. Epilepsy Res. 2016 Dec;128:68-72.

Bartolomei F, Bonini F, Vidal E, Trébuchon A, Lagarde S, Lambert I, McGonigal A, Scavarda D, Carron R, Benar CG. How does vagal nerve stimulation (VNS) change EEG brain functional connectivity? Epilepsy Res. 2016

Jmail N, Gavaret M, Bartolomei F, Chauvel P, Badier JM, Bénar CG. Comparison of Brain Networks During Interictal Oscillations and Spikes on Magnetoencephalography and Intracerebral EEG. Brain Topogr. 2016 Sep;29(5):752-65

Courtens S, Colombet B, Trébuchon A, Brovelli A, Bartolomei F, Bénar CG. Graph Measures of Node Strength for Characterizing Preictal Synchrony in Partial Epilepsy. Brain Connect. 2016 Sep;6(7):530-9.

Saillet S, Quilichini PP, Ghestem A, Giusiano B, Ivanov AI, Hitziger S, Vanzetta I, Bernard C, Bénar C-G. Interneurons contribute to the hemodynamic/metabolic response to epileptiform discharges. J Neurophysiol 2016 Mar;115(3):1157-69.

Bartolomei F, Trébuchon A, Bonini F, Lambert I, Gavaret M, Woodman M, Giusiano B, Wendling F, Bénar C. What is the concordance between the seizure onset zone and the irritative zone? A SEEG quantified study. Clin Neurophysiol. 2015 Oct 19

Colombet B, Woodman M, Badier JM, Bénar CG. 'AnyWave: A cross-platform and modular software for visualizing and processing electrophysiological signals', J Neurosci Methods. 2015 Mar 15;242:118-26

Leleux P, Rivnay J, Lonjaret T, Badier JM, Bénar C, Hervé T, Chauvel P, Malliaras GG. Organic Electrochemical Transistors for Clinical Applications. Adv Healthc Mater. 2014 Sep 29.

Dubarry AS, Badier JM, Trébuchon-Da Fonseca A, Gavaret M, Carron R, Bartolomei F, Liégeois-Chauvel C, Régis J, Chauvel P, Alario FX, Bénar C. Simultaneous recording of MEG, EEG and intracerebral EEG during visual stimulation: From feasibility to single-trial analysis. Neuroimage. 2014 May 23.

Wirsich J, Bénar C, Ranjeva JP, Descoins M, Soulier E, Le Troter A, Confort-Gouny S, Liégeois-Chauvel C, Guye M. Single-trial EEG-informed fMRI reveals spatial dependency of BOLD signal on early and late IC-ERP amplitudes during face recognition. Neuroimage. 2014

Malinowska U, Badier JM, Gavaret M, Bartolomei F, Chauvel P, Bénar C-G. Interictal networks revealed by magnetoencephalography and intracerebral EEG Hum Brain Mapp. 2014 Jun;35(6):2789-805

Voges N, Blanchard S, Wendling F, David O, Benali H, Papadopoulo T, Clerc M, Bénar C Modeling of the neurovascular coupling in epileptic discharges. Brain Topogr, 2012 Apr;25(2):136-56

Schwartz TH, Hong SB, Bagshaw AP, Chauvel P, Bénar CG. Preictal changes in cerebral haemodynamics: Review of findings and insights from intracerebral EEG. Epilepsy Res. Dec; 2011 97(3):252-66.

Jmail N, Gavaret M, Wendling F, Kachouri A, Hamadi G, Badier JM, Bénar CG. A comparison of methods for separation of transient and oscillatory signals in EEG. J Neurosci Methods. 2011 Aug 15;199(2):273-89.

Krieg J, Trébuchon-Da Fonseca A, Martínez-Montes E, Marquis P, Liégeois-Chauvel C, Bénar CG. A comparison of methods for assessing alpha phase resetting in electrophysiology, with application to intracerebral EEG in visual areas. Neuroimage. 2011 Mar 1;55(1):67-86.

Vanzetta I, Flynn C, Ivanov A, Bernard C, Bénar CG, Linear coupling between single-event blood flow responses and interictal discharges in a model of epilepsy. J Neurophysiol 2010 Jun; 103(6):3139-3152.

Bénar CG, Chauvière L, Bartolomei F, Wendling F. Pitfalls of high-pass filtering for detecting epileptic oscillations: a technical note on "false" ripples. Clin Neurophysiol. 2010 Mar;121(3):301-10.

Bénar CG, Papadopoulo T, Torrésani B, Clerc M. Consensus Matching Pursuit for multi-trial EEG signals. J Neurosci Methods. 2009 May 30;180(1):161-70 Bénar CG, Schön D, Grimault S, Nazarian B, Burle B, Roth M, Badier JM, Marquis P., Liegeois-Chauvel C, Anton JL, Single-trial analysis of auditory event-related potentials in simultaneous EEG-fMRI, Hum Brain Mapp. 2007 Jul;28(7):602-13.

Bénar CG, Grova C, Kobayashi E, Bagshaw AP, Dubeau F, Gotman J. EEG-fMRI of Epileptic Spikes : Concordance with EEG source localization and intracranial EEG, Neuroimage 2006 May 1;30(4):1161-70

Bénar CG, Gunn RN, Grova C, Champagne B, Gotman J. Statistical maps for EEG dipolar source localization. IEEE Trans Biomed Eng 2005 Mar;52(3):401-13. Bénar CG, Aghakhani Y, Wang Y, Izenberg A, Al-Asmi A, Dubeau F, Gotman J. Quality of EEG in Simultaneous EEG-fMRI for Epilepsy. Clin Neurophysiol 2003;114(3):569-80.

Bénar CG, Gross DW, Wang Y, Petre V, Pike B, Dubeau F, Gotman J. The BOLD Response to Interictal Epileptiform Discharges. Neuroimage 2002; 17, 1182-1192 Bénar CG, Gotman J. Modeling of post-surgical brain and skull defects in the EEG inverse problem with the boundary element method. Clin Neurophysiol 2002;113(1):48-56

Peer-reviewed publications in other position

Jirsa VK, Proix T, Perdikis D, Woodman MM, Wang H, Gonzalez-Martinez J, Bernard C, Bénar C, Guye M, Chauvel P, Bartolomei F. The Virtual Epileptic Patient: Individualized whole-brain models of epilepsy spread. Neuroimage. 2017

Marchi A, Bonini F, Lagarde S, McGonigal A, Gavaret M, Scavarda D, Carron R, Aubert S, Villeneuve N, Médina Villalon S, Bénar C, Trebuchon A, Bartolomei F. Occipital and occipital "plus" epilepsies: A study of involved epileptogenic networks through SEEG quantification. Epilepsy Behav. 2016 Sep;62:104-14

Wirsich J, Perry A, Ridley B, Proix T, Golos M, Bénar C, Ranjeva JP, Bartolomei F, Breakspear M, Jirsa V, Guye M. Whole-brain analytic measures of network communication reveal increased structure-function correlation in right temporal lobe epilepsy. Neuroimage Clin. 2016 May 19;11:707-18.

Boussen S, Velly L, Benar C, Metellus P, Bruder N, Trébuchon A. In Vivo Tumour Mapping Using Electrocorticography Alterations During Awake Brain Surgery: A Pilot Study. Brain Topogr. 2016 Sep;29(5):766-82.

Blanchard S, Saillet S, Ivanov A, Benquet P, Bénar CG, Pélégrini-Issac M, Benali H, Wendling F. A New Computational Model for Neuro-Glio-Vascular Coupling: Astrocyte Activation Can Explain Cerebral Blood Flow Nonlinear Response to Interictal Events. PLoS One. 2016 Feb 5;11(2):e0147292

Rivnay J, Leleux P, Ferro M, Sessolo M, Williamson A, Koutsouras DA, Khodagholy D, Ramuz M, Strakosas X, Owens RM, Benar C, Badier JM, Bernard C, Malliaras GG. High-performance transistors for bioelectronics through tuning of channel thickness. Sci Adv. 2015 May 22;1(4):e1400251

Evangelista E, Bénar C, Bonini F, Carron R, Colombet B, Régis J, Bartolomei F. Does the Thalamo-Cortical Synchrony Play a Role in Seizure Termination? Front Neurol. 2015 Sep 1;6:192

Badier JM, Bénar CG, Woodman M, Cruto C, Chauvel P, Bartolomei F, Gavaret M. Ictal Magnetic Source Imaging in Presurgical Assessment. Brain Topogr. 2015 Wang HE, Bénar CG, Quilichini PP, Friston KJ, Jirsa VK, Bernard C. A systematic framework for functional connectivity measures. Front Neurosci. 2014 Dec 9;8:405.

Badier JM, Bartolomei F, Chauvel P, Bénar CG, Gavaret M. Magnetic source imaging in posterior cortex epilepsies. Brain Topogr. 2015 Jan;28(1):162-71 Liégeois-Chauvel C, Bénar C, Krieg J, Delbé C, Chauvel P, Giusiano B, Bigand E. How functional coupling between the auditory cortex and the amygdala induces musical emotion: A single case study. Cortex. 2014 Jun 16

Becker H, Albera L, Comon P, Haardt M, Birot G, Wendling F, Gavaret M, Bénar CG, Merlet I. EEG extended source localization: tensor-based vs. conventional methods.Neuroimage. 2014 Aug 1;96:143-57.

Comon P, Haardt M, Birot G, Wendling F, Gavaret M, Bénar CG, Merlet I. EEG extended source localization: Tensor-based vs. conventional methods. Becker H, Albera L, Neuroimage. 2014 Aug 1;96:143-57.

Gavaret M, Badier JM, Bartolomei F, Bénar CG, Chauvel P. MEG and EEG Sensitivity in a Case of Medial Occipital Epilepsy. Brain Topography 2014 Jan;27(1):192-6.

Birot G, Kachenoura A, Albera L, Bénar C, Wendling F. Automatic detection of fast ripples. J Neurosci Methods. 2013 Mar 15;213(2):236-49. Leleux P, Badier JM, Rivnay J, Bénar C, Hervé T, Chauvel P, Malliaras GG. Conducting Polymer Electrodes for Electroencephalography. Adv Healthc Mater. 2013 Sep 19.

Morillon B, Liégeois-Chauvel C, Arnal LH, Bénar CG, Giraud AL. Asymmetric function of theta and gamma activity in syllable processing: an intra-cortical study. Front Psychol. 2012;3:248

Bettus G, Ranjeva JP, Wendling F, Bénar CG, Confort-Gouny S, Régis J, Chauvel P, Cozzone PJ, Lemieux L, Bartolomei F, Guye M. Interictal functional connectivity of human epileptic networks assessed by intracerebral EEG and BOLD signal fluctuations. PLoS One. 2011;6(5):e20071.

Blanchard S, Papadopoulo T, Bénar CG, Voges N, Clerc M, Benali H, Warnking J, David O, Wendling F. Relationship between flow and metabolism in BOLD signals: insights from biophysical models. Brain Topogr. 2011 Mar;24(1):40-53.

Maillard L., Barbeau E, Baumann C, Koessler L, Bénar C, Chauvel P, Liégeois-Chauvel C From Perception to Recognition Memory: Time Course and Lateralization of Neural Substrates of Word and Abstract Picture Processing. J Cogn Neurosci. 2010 Feb 10.

Koessler L, Bénar CG, Maillard L, Badier JM, Vignal JP, Bartolomei F, Chauvel P, Gavaret M, Source localization of ictal epileptic activity investigated by high resolution EEG and validated by SEEG Neuroimage,. 2010 Jun;51(2):642-53.

Roger C, Bénar CG, Vidal F, Hasbroucq T, Burle B. Rostral Cingulate Zone and correct response monitoring: ICA and source localization evidences for the unicity of correct- and error-negativities. Neuroimage. 2010 May 15;51(1):391-403

Trébuchon-Da Fonseca A, Bénar CG, Bartoloméi F, Régis J, Démonet JF, Chauvel P, Liégeois-Chauvel C. Electrophysiological study of the basal temporal language area: a convergence zone between language perception and production networks. Clin Neurophysiol. 2009 Mar;120(3):539-50.

Kobayashi E, Bagshaw AP, Bénar CG, Aghakhani Y, Andermann F, Dubeau F, Gotman J. Temporal and extratemporal BOLD responses to temporal lobe interictal spikes. Epilepsia. 2006 Feb;47(2):343-54.

Gotman J, Kobayashi E, Bagshaw AP, Bénar CG, Dubeau F. Combining EEG and fMRI: a multimodal tool for epilepsy research. J Magn Reson Imaging. 2006 Jun;23(6):906-20.

Aghakhani Y, Kobayashi E, Bagshaw AP, Hawco C, Bénar CG, Dubeau F, Gotman J. Cortical and thalamic fMRI responses in partial epilepsy with focal and bilateral synchronous spikes. Clin Neurophysiol. 2006 Jan;117(1):177-91.

Grova C, Daunizeau J, Lina JM, Bénar CG, Benali H, Gotman J. , Evaluation of EEG localization methods using realistic simulations of interictal spikes. Neuroimage. 2006 Feb 1;29(3):734-53.

Bagshaw AP, Hawco C, Bénar CG, Kobayashi E, Aghakhani Y, Dubeau F, Pike GB, Gotman J. Analysis of the EEG-fMRI response to prolonged bursts of interictal epileptiform activity. Neuroimage. 2005;24(4):1099-112.

Gotman J, Bénar CG, Dubeau F. Combining EEG and fMRI in Epilepsy: Methodological Challenges and Clinical Results. J Clin Neurophys, 2004 Jul-Aug;21(4):229-40.

Bagshaw AP, Aghakhani Y, Bénar CG, Kobayashi E, Hawco C, Dubeau F, Pike GB, Gotman J. EEG-fMRI of focal epileptic spikes: analysis with multiple haemodynamic functions and comparison with gadolinium-enhanced MR angiograms. Human Brain Mapping, 2004;22(3):179-92.

Aghakhani Y, Bagshaw AP, Bénar CG, Hawco C, Andermann F, Dubeau F, Gotman J. fMRI Activation during Spike and Wave Discharges in Idiopathic Generalized Epilepsy. Brain 2004;127(Pt 5):1127-44.

Kang JK, Bénar C, Al-Asmi A, Khani YA, Pike GB, Dubeau F, Gotman J. Using patient-specific hemodynamic response functions in combined EEG-fMRI studies in epilepsy. Neuroimage 2003 Oct;20(2):1162-70.

Al-Asmi A, Bénar CG, Gross DW, Khani YA, Andermann F, Pike B, Dubeau F, Gotman J. fMRI Activation in Continuous and Spike-triggered EEG-fMRI Studies of Epileptic Spikes. Epilepsia 2003;44(10):1328-39.