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29 May 2018

Déjà-rêvé: Prior dreams induced by direct electrical brain stimulation

Epileptic patients sometimes report experiential phenomena related to a previous dream they had during seizures or electrical brain stimulation (EBS). This has been alluded to in the literature as “déjà-rêvé” (“already dreamed”). However, there is no neuroscientific evidence to support its existence and this concept is commonly mixed up with déjà-vu. We hypothesized that déjà-rêvé would be a specific entity, i.e., different from other experiential phenomena reported in epileptic patients, induced by EBS of specific brain areas..

This study demonstrates that deja-reve is a heterogeneous entity that is different from dejavu, the historical “dreamy state” definition and other experiential phenomena. This may be relevant for clinical practice as it points to temporal lobe dysfunction and could be valuable for studying the neural substrates of dreams.

1 March 2018

Brain week 2018

Brain week 2018 will take place from March 12 to 18,2018. This edition is under the patronage of Mrs. Frédérique Vidal, Minister of Higher Education, Research and Innovation. As every year, CERCO researchers and doctoral students (UMR 5549 CNRS/UT3) will meet the general public and schoolchildren to share their knowledge. From Monday, March 12 at 6pm " See your brain dance on the breath " in Saint Pierre des Cuisines, then go to the ABC at 8:30pm to watch Jordan Peele’s film " Get out " and discuss with neuroscientists about optical illusions or new sportmen...

9 February 2018

Women in Coffee Science: appointment on February 13,2018

edition 2017/18 of the Cafés Femmes en sciences at the Quai des Savoirs, which started in October 2017, proposes a third meeting on Tuesday 13 February 2018 at 6pm with Nabila Jabrane-Ferrat of the Centre de physiopathologie de Toulouse Purpan (CNRS, Inserm, UT3 - Paul Sabatier) and Céline Cappe of the Centre de recherche cerveau et cognition (CNRS, UT They are specialists in so-called "natural killers" cells and multi-sensory information processing respectively. These two scientists will talk about their careers, their daily work and their current research in a relaxed and open atmosphere. This coffee will be introduced by a quiz to test your knowledge of gender equality in a fun way.

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9 January 2018

Age-related macular degeneration: teaching the brain how to adapt to the disease

Age-related macular degeneration (AMD) is an incurable eye disease that affects more than one million people in France. It is characterized by a damage of the central part of the retina, the macula. At an advanced stage, a blind spot appears in the center of the visual field, while peripheral vision is preserved. There is currently no cure for AMD. Recent studies in neuroscience have shown that it is possible to use a perceptual learning method to improve central visual functions in the case of pathologies such as myopia or amblyopia. In collaboration with the Retina Center of the Purpan Hospital, the ECO-3D team of the Cerco laboratory (CNRS UMR 5549) applied this approach to the peripheral region of the visual field in AMD patients who had totally lost their central vision. Patients followed training sessions for 2 months during which they had to detect the visual properties of objects. The idea was to force the brain to progressively improve perceptual performances in the intact peripheral region of the macula and to extend these improvements to the flawed central region through cerebral plasticity. The results obtained strongly suggest that this perceptual learning has indeed led to partial cortical reorganizations; this is a promising first step in the collaboration between basic research and clinical research in the field of ophthalmology to develop rehabilitation methods aiming at improving visual performance and thus the autonomy of AMD patients.

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20 November 2017


The CHU has just acquired an automaton of synthesis. Placed near the cyclotron in Purpan-North, it facilitates the exploration of the hearing of a patient by eliminating the noise and by evacuating problems posed by prostheses containing some metal. For Pr Olivier Deguine, leader of the service ORL at the hospital Pierre Paul Riquet on the site of Purpan, the interest of this technique is to look at zones stimulated in the brain when we send a sound to an ear or to both, by natural way or by cochlear implant. "We can so determine, he says, if in case of unilateral deafness the brain works as to the hearing good and when it is rehabilitated if everything works normally." The newspaper of the CHU: "Trait d’union" dedicates it its autumn number.

PDF - 289.2 kb

To be noted

Brain Week 2018

Brain Week 2018 will take place from March 12 to 18. Program.

Conférences et séminaires

Conférence CerCo
Peter Neri
Laboratoire des Systèmes Perceptifs (UMR8248), Ecole Normale Supérieure
vendredi 23 novembre 2018 11h
Salle de conférence (Pavillon Baudot), Hôpital Purpan
Human reconstruction of sensory signals from natural scenes

Raymond Reynolds
School of Sport, Exercise & Rehabilitation Sciences University of Birmingham, UK
mercredi 12 décembre 2018 11h
Salle de conférence (Pavillon Baudot), Hôpital Purpan
Extending Electrical Vestibular Stimulation from basic science to clinical use


L’association InCOGnu organise régulièrement des soirées débats et ateliers autour des Sciences Cognitives. More...