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Four core properties of the human brain valuation system demonstrated in intracranial signals.

Alizée Lopez-Persem, Julien Bastin, Mathilde Petton, Raphaëlle Abitbol, Katia Lehongre, Claude Adam, Vincent Navarro, Sylvain Rheims, Philippe Kahane, Philippe Domenech, Mathias Pessiglione,

Estimating the value of alternative options is a key process in decision-making. Human functional magnetic resonance imaging and monkey electrophysiology studies have identified brain regions, such as the ventromedial prefrontal cortex (vmPFC) and lateral orbitofrontal cortex (lOFC), composing a value system. In the present study, in an effort to bridge ... Read more >>

Nat. Neurosci. (Nature neuroscience)
[2020, 23(5):664-675]

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Conscious and unconscious expectancy effects: A behavioral, scalp and intracranial electroencephalography study.

Camille Rozier, Tal Seidel Malkinson, Dominique Hasboun, Michel Baulac, Claude Adam, Katia Lehongre, Stéphane Clémenceau, Vincent Navarro, Lionel Naccache,

OBJECTIVE:The scope of unconscious cognition stretched its limits dramatically during the last 40 years, yet most unconscious processes and representations that have been described so far are fleeting and very short-lived, whereas conscious representations can be actively maintained in working memory for a virtually unlimited period. In the present work we ... Read more >>

Clin Neurophysiol (Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology)
[2020, 131(2):385-400]

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In vivo interictal signatures of human periventricular nodular heterotopia

Valerio Frazzini, Stephen Whitmarsh, Katia Lehongre, Pierre Yger, Jean-Didier Lemarechal, Bertrand Mathon, Claude Adam, Dominique Hasboun, Virginie Lambrecq, Vincent Navarro,

ABSTRACT Periventricular nodular heterotopia (PNH) causes drug-resistant epilepsy. We analyzed in vivo interictal activities from three nodules of two epileptic patients using macro-microelectrodes. Two highly unusual interictal LFP patterns (IPs) were identified: Trains of periodic slow waves and isolated slow deflections, both with superimposed fast activity. These patterns were restricted ... Read more >>

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Perturbation-based mapping of natural frequencies with direct intracranial stimulation of the human brain

Julià Amengual, Chloé Stengel, Tristan Moreau, Claude Adam, Mario Chavez, Antoni Valero-Cabré,

ABSTRACT Theoretical and experimental evidence suggest that the induction of oscillatory activity by an external rhythmic source on a specific brain area is maximally efficient if the input pattern matches its so-called ‘natural’ frequency, defined as the predominant neural rhythm at which the activity of this area tends to fluctuate ... Read more >>

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Intracranial Recordings and Computational Modeling of Music Reveal the Time Course of Prediction Error Signaling in Frontal and Temporal Cortices.

Diana Omigie, Marcus Pearce, Katia Lehongre, Dominique Hasboun, Vincent Navarro, Claude Adam, Severine Samson,

Prediction is held to be a fundamental process underpinning perception, action, and cognition. To examine the time course of prediction error signaling, we recorded intracranial EEG activity from nine presurgical epileptic patients while they listened to melodies whose information theoretical predictability had been characterized using a computational model. We examined ... Read more >>

J Cogn Neurosci (Journal of cognitive neuroscience)
[2019, 31(6):855-873]

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Resting-State Neural Firing Rate Is Linked to Cardiac-Cycle Duration in the Human Cingulate and Parahippocampal Cortices.

Kayeon Kim, Josef Ladenbauer, Mariana Babo-Rebelo, Anne Buot, Katia Lehongre, Claude Adam, Dominique Hasboun, Virginie Lambrecq, Vincent Navarro, Srdjan Ostojic, Catherine Tallon-Baudry,

Stimulation and functional imaging studies have revealed the existence of a large network of cortical regions involved in the regulation of heart rate. However, very little is known about the link between cortical neural firing and cardiac-cycle duration (CCD). Here, we analyze single-unit and multiunit data obtained in humans at ... Read more >>

J. Neurosci. (The Journal of neuroscience : the official journal of the Society for Neuroscience)
[2019, 39(19):3676-3686]

Cited: 1 time

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Hypoxemia following generalized convulsive seizures: Risk factors and effect of oxygen therapy.

Sylvain Rheims, Blanca Mercedes Alvarez, Veriano Alexandre, Jonathan Curot, Louis Maillard, Fabrice Bartolomei, Philippe Derambure, Edouard Hirsch, Véronique Michel, Francine Chassoux, Didier Tourniaire, Arielle Crespel, Arnaud Biraben, Vincent Navarro, Philippe Kahane, Bertrand De Toffol, Pierre Thomas, Sarah Rosenberg, Luc Valton, Laurent Bezin, Philippe Ryvlin, ,

OBJECTIVE:To analyze the factors that determine the occurrence or severity of postictal hypoxemia in the immediate aftermath of a generalized convulsive seizure (GCS). METHODS:We reviewed the video-EEG recordings of 1,006 patients with drug-resistant focal epilepsy included in the REPO2MSE study to identify those with ≥1 GCS and pulse oximetry (SpO2) ... Read more >>

Neurology (Neurology)
[2019, 92(3):e183-e193]

Cited: 1 time

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Face-selective neurons in the vicinity of the human fusiform face area.

Vadim Axelrod, Camille Rozier, Tal Seidel Malkinson, Katia Lehongre, Claude Adam, Virginie Lambrecq, Vincent Navarro, Lionel Naccache,

Neurology (Neurology)
[2019, 92(4):197-198]

Cited: 1 time

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Probabilistic functional tractography of the human cortex revisited.

Lena Trebaul, Pierre Deman, Viateur Tuyisenge, Maciej Jedynak, Etienne Hugues, David Rudrauf, Manik Bhattacharjee, François Tadel, Blandine Chanteloup-Foret, Carole Saubat, Gina Catalina Reyes Mejia, Claude Adam, Anca Nica, Martin Pail, François Dubeau, Sylvain Rheims, Agnès Trébuchon, Haixiang Wang, Sinclair Liu, Thomas Blauwblomme, Mercedes Garcés, Luca De Palma, Antonio Valentin, Eeva-Liisa Metsähonkala, Ana Maria Petrescu, Elizabeth Landré, William Szurhaj, Edouard Hirsch, Luc Valton, Rodrigo Rocamora, Andreas Schulze-Bonhage, Ioana Mindruta, Stefano Francione, Louis Maillard, Delphine Taussig, Philippe Kahane, Olivier David,

In patients with pharmaco-resistant focal epilepsies investigated with intracranial electroencephalography (iEEG), direct electrical stimulations of a cortical region induce cortico-cortical evoked potentials (CCEP) in distant cerebral cortex, which properties can be used to infer large scale brain connectivity. In 2013, we proposed a new probabilistic functional tractography methodology to study ... Read more >>

Neuroimage (NeuroImage)
[2018, 181:414-429]

Cited: 4 times

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New clinicopathological associations and histoprognostic markers in ILAE types of hippocampal sclerosis.

Ana Laura Calderon-Garcidueñas, Bertrand Mathon, Pierre Lévy, Anne Bertrand, Karima Mokhtari, Véronique Samson, Valérie Thuriès, Virginie Lambrecq, Vi-Huong Michel Nguyen, Sophie Dupont, Claude Adam, Michel Baulac, Stéphane Clémenceau, Charles Duyckaerts, Vincent Navarro, Franck Bielle,

Mesial temporal lobe epilepsy with hippocampal sclerosis (MTLE-HS) is a heterogeneous syndrome. Surgery results in seizure freedom for most pharmacoresistant patients, but the epileptic and cognitive prognosis remains variable. The 2013 International League Against Epilepsy (ILAE) histopathological classification of hippocampal sclerosis (HS) has fostered research to understand MTLE-HS heterogeneity. We ... Read more >>

Brain Pathol. (Brain pathology (Zurich, Switzerland))
[2018, 28(5):644-655]

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Rapid eye movement sleep behavior disorder or epileptic seizure during sleep? A video analysis of motor events.

Vi-Huong Nguyen-Michel, Ovidio Solano, Smaranda Leu-Semenescu, Aurélie Pierre-Justin, Ana Gales, Vincent Navarro, Michel Baulac, Claude Adam, Sophie Dupont, Isabelle Arnulf,

To compare the motor semiology of sleep behavior disorder (RBD) during rapid eye movement (REM) with epileptic seizures in non-REM and REM sleep.We analyzed the types and frequency of motor events from videos of patients with RBD (n = 15, mean age 64.8 years, 179 motor episodes) and patients with epilepsy (n = 15, ... Read more >>

Seizure (Seizure)
[2018, 58:1-5]

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Adolescence/adult onset MTHFR deficiency may manifest as isolated and treatable distinct neuro-psychiatric syndromes.

Ana Gales, Marion Masingue, Stephanie Millecamps, Stephane Giraudier, Laure Grosliere, Claude Adam, Claudio Salim, Vincent Navarro, Yann Nadjar,

5,10-Methylene-tetrahydrofolate reductase (MTHFR) deficiency is a genetic disorder that can occur at any age and can be easily detected by increased homocysteinemia. In adolescence/adult onset forms, the clinical picture is often complex with association of various neurological features and thrombosis.Here we report the cases of two adult siblings who experienced ... Read more >>

Orphanet J Rare Dis (Orphanet journal of rare diseases)
[2018, 13(1):29]

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Interpretation of SEEG recordings.

Fabrice Bartolomei, Anca Nica, Maria Paola Valenti-Hirsch, Claude Adam, Marie Denuelle,

The interpretation of SEEG recordings is a crucial step. It must be carried out by an epileptologist/neurophysiologist with sufficient training and qualification in this field. The objectives of the interpretation are to define the brain topography of interictal activities (irritative zone) and the epileptogenic zone, defined as the site of ... Read more >>

Neurophysiol Clin (Neurophysiologie clinique = Clinical neurophysiology)
[2018, 48(1):53-57]

Cited: 2 times

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Single-unit activities during the transition to seizures in deep mesial structures.

Virginie Lambrecq, Katia Lehongre, Claude Adam, Valério Frazzini, Bertrand Mathon, Stéphane Clemenceau, Dominique Hasboun, Stéphane Charpier, Michel Baulac, Vincent Navarro, Michel Le Van Quyen,

Focal seizures are assumed to arise from a hypersynchronous activity affecting a circumscribed brain region. Using microelectrodes in seizure-generating deep mesial regions of 9 patients, we investigated the firing of hundreds of single neurons before, during, and after ictal electroencephalogram (EEG) discharges. Neuronal spiking activity at seizure initiation was highly ... Read more >>

Ann. Neurol. (Annals of neurology)
[2017, 82(6):1022-1028]

Cited: 2 times

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Predictive factors of long-term outcomes of surgery for mesial temporal lobe epilepsy associated with hippocampal sclerosis.

Bertrand Mathon, Franck Bielle, Séverine Samson, Odile Plaisant, Sophie Dupont, Anne Bertrand, Richard Miles, Vi-Huong Nguyen-Michel, Virginie Lambrecq, Ana Laura Calderon-Garcidueñas, Charles Duyckaerts, Alexandre Carpentier, Michel Baulac, Philippe Cornu, Claude Adam, Stéphane Clemenceau, Vincent Navarro,

The reasons for failure of surgical treatment for mesial temporal lobe epilepsy (MTLE) associated with hippocampal sclerosis (HS) remain unclear. This retrospective study analyzed seizure, cognitive, and psychiatric outcomes, searching for factors associated with seizure relapse or cognitive and psychiatric deterioration after MTLE-HS surgery.Seizure, cognitive, and psychiatric outcomes were reviewed ... Read more >>

Epilepsia (Epilepsia)
[2017, 58(8):1473-1485]

Cited: 14 times

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"I feel my arm shaking": partial cataplexy mistaken for drug-resistant focal epilepsy.

Vera Dinkelacker, Vi-Huong Nguyen-Michel, Lionel Thivard, Vincent Navarro, Claude Adam, Olivier Pallanca, Isabelle Arnulf,

Sleep Med. (Sleep medicine)
[2017, 36:119-121]

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Understanding Lennox-Gastaut syndrome: insights from focal epilepsy patients with Lennox-Gastaut features.

Sophie Dupont, Raluca Banica-Wolters, Isabelle An-Gourfinkel, Virginie Lambrecq, Vincent Navarro, Claude Adam, Vi-Huong Nguyen-Michel,

To delineate the clinical and EEG features of adults with focal epilepsy associated with a generalized paroxysmal fast activity (GPFA) pattern on EEG who developed refractory seizures, notably drop attacks, but do not fulfill the classical triad for the diagnosis of Lennox-Gastaut syndrome (LGS) and provide further insight into LGS ... Read more >>

J. Neurol. (Journal of neurology)
[2017, 264(7):1388-1396]

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Complications After Surgery for Mesial Temporal Lobe Epilepsy Associated with Hippocampal Sclerosis.

Bertrand Mathon, Vincent Navarro, Franck Bielle, Vi-Huong Nguyen-Michel, Alexandre Carpentier, Michel Baulac, Philippe Cornu, Claude Adam, Sophie Dupont, Stéphane Clemenceau,

Hippocampal sclerosis is the most common cause of drug-resistant epilepsy amenable for surgical treatment and seizure control. This study aimed to analyze morbidities related to surgery of mesial temporal lobe epilepsy associated with hippocampal sclerosis and to identify possible risk factors for complications.A retrospective analysis of postoperative complications was made ... Read more >>

World Neurosurg (World neurosurgery)
[2017, 102:639-650.e2]

Cited: 6 times

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Local entrainment of oscillatory activity induced by direct brain stimulation in humans.

Julià L Amengual, Marine Vernet, Claude Adam, Antoni Valero-Cabré,

In a quest for direct evidence of oscillation entrainment, we analyzed intracerebral electroencephalographic recordings obtained during intracranial electrical stimulation in a cohort of three medication-resistant epilepsy patients tested pre-surgically. Spectral analyses of non-epileptogenic cerebral sites stimulated directly with high frequency electrical bursts yielded episodic local enhancements of frequency-specific rhythmic activity, ... Read more >>

Sci Rep (Scientific reports)
[2017, 7:41908]

Cited: 4 times

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Medial temporal lobe epilepsy associated with hippocampal sclerosis is a distinctive syndrome.

Young Joo No, Chiara Zavanone, Franck Bielle, Vi-Huong Nguyen-Michel, Yves Samson, Claude Adam, Vincent Navarro, Sophie Dupont,

Epileptic syndromes are distinctive disorders with specific features, which when taken together, permit a specific diagnosis. There is actually a debate on that medial temporal lobe epilepsy with hippocampal sclerosis is an epileptic syndrome. To address this issue, we searched for discriminative semiological features between temporal lobe epilepsy patients with ... Read more >>

J. Neurol. (Journal of neurology)
[2017, 264(5):875-881]

Cited: 1 time

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Self-induced intracerebral gamma oscillations in the human cortex.

Juliana Corlier, Daphné Rimsky-Robert, Mario Valderrama, Katia Lehongre, Claude Adam, Stéphane Clémenceau, Stéphane Charpier, Julien Bastin, Philippe Kahane, Jean-Philippe Lachaux, Vincent Navarro, Michel Le Van Quyen,

Gamma oscillations play a pivotal role in multiple cognitive functions. They enable coordinated activity and communication of local assemblies, while abnormalities in gamma oscillations exist in different neurological and psychiatric diseases. Thus, a specific rectification of gamma synchronization could potentially compensate the deficits in pathological conditions. Previous experiments have shown ... Read more >>

Brain (Brain : a journal of neurology)
[2016, 139(Pt 12):3084-3091]

Cited: 2 times

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Voluntary control of intracortical oscillations for reconfiguration of network activity.

Juliana Corlier, Mario Valderrama, Miguel Navarrete, Katia Lehongre, Dominique Hasboun, Claude Adam, Hayat Belaid, Stéphane Clémenceau, Michel Baulac, Stéphane Charpier, Vincent Navarro, Michel Le Van Quyen,

Voluntary control of oscillatory activity represents a key target in the self-regulation of brain function. Using a real-time closed-loop paradigm and simultaneous macro- and micro-electrode recordings, we studied the effects of self-induced intracortical oscillatory activity (4-8 Hz) in seven neurosurgical patients. Subjects learned to robustly and specifically induce oscillations in the ... Read more >>

Sci Rep (Scientific reports)
[2016, 6:36255]

Cited: 2 times

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Is the cardiac monitoring function related to the self in both the default network and right anterior insula?

Mariana Babo-Rebelo, Nicolai Wolpert, Claude Adam, Dominique Hasboun, Catherine Tallon-Baudry,

The self has been proposed to be rooted in the neural monitoring of internal bodily signals and might thus involve interoceptive areas, notably the right anterior insula (rAI). However, studies on the self consistently showed the involvement of midline default network (DN) nodes, without referring to visceral monitoring. Here, we ... Read more >>

Philos. Trans. R. Soc. Lond., B, Biol. Sci. (Philosophical transactions of the Royal Society of London. Series B, Biological sciences)
[2016, 371(1708):]

Cited: 4 times

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4h versus 1h-nap-video-EEG monitoring in an Epileptology Unit.

Vi-Huong Nguyen-Michel, Vera Dinkelacker, Ovidio Solano, Pierre-P Levy, Virginie Lambrecq, Claude Adam, Sophie Dupont, Lionel Naccache, Emmanuel Fournier, Michel Baulac, Vincent Navarro,

To compare the performance of 4h-video EEG monitoring (VEEG) and 1h-nap-VEEG in an Epileptology Unit.We examined short-term VEEG data from 196 patients admitted to characterize their: (i) clinical events; (ii) epileptic syndromes or (iii) state after status epilepticus or surgery. We compared the 4h-VEEG and 1h-nap-VEEG performances using three measures: ... Read more >>

Clin Neurophysiol (Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology)
[2016, 127(9):3135-3139]

Cited: 0 times

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Complex periodic limb movements during sleep or partial epileptic seizures?

Vi-Huong Nguyen-Michel, Ovidio Solano, Virginie Lambrecq, Sophie Dupont, Claude Adam, Isabelle Arnulf,

Neurology (Neurology)
[2015, 85(24):2180]

Cited: 0 times

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