Chargement Évènements

« Tous les Évènements

  • Cet évènement est passé

Séminaire – Léon Tremblay

21 septembre 2018 / 14:00 - 15:00

21 sept. 2018 à 14:00 (Amphi Broca)

Léon Tremblay
Directeur de Recherche, Institute of Cognitive Science Marc Jeannerod, Lyon, France.

Invitant :
Dominique Guehl, INCIA

Abstract :

Thanks to the non-human primate (NHP), we have shown that the pharmacological disturbance of the anterior striatum or of external globus pallidus triggers a set of motivation and movement disorders, depending on the functional sub-territory involved. One can, therefore, assume that the aberrant activity of the different sub-territories of basal ganglia (BG) could lead to different behavioral disorders in neuropsychiatric disorders as Tourette’s syndrome and Parkinson’s disease. We are now addressing in the NHP the impact of modulating dopamine or serotonin within the BG on behavioral disorders. Indeed, we have shown a prominent role of serotonergic degeneration within the ventral striatum and caudate nucleus in neuropsychiatric symptoms in de novo PD patients. Of note, the serotonergic modulation of these BG regions in the NHP plays also a critical role in the induction or treatment of behavioral disorders. Given that both dopamine and serotonin are targeted to treat neuropsychiatric disorders, we are studying the effects of modulating dopamine and serotonin transporters in the different territories of the striatum, and more particularly within the ventral striatum on decision-making processing at both behavioral and neuronal levels. Finally, we evidence the need to extend the pharmacological approach to the receptors of these two neuromodulator systems as the use of substances targeting receptor subtypes preferentially localized in the associative and limbic territories of BG could be very effective to specifically improve the behavioral disorders in Parkinson’s disease, Gilles de la Tourette syndrome but also in several psychiatric disorders such as depression, anxiety, anorexia, or impulse control disorders.

Prochainement

  1. Séminaire – Suzana Herculano-Houzel

    vendredi 26 avril 2019 / 11:30

    Invitant : Thomas Boraud

  2. Séminaire impromptu – Maxime Assous

    vendredi 3 mai 2019 / 10:00 - 11:30

    Extrinsic innervation of striatal interneurons and implications for the local microcircuitry.

  3. Conférence mensuelle – Richard Robitaille

    vendredi 3 mai 2019 / 11:30 - 12:30

    Regulation of synaptic structure ad function by glial celles in health and disease

  4. Séminaire – Stéphanie Trouche

    vendredi 10 mai 2019 / 11:30 - 12:30

    Invitant : Catherine Le Moine

  5. Journée Bordeaux Neurocampus

    mercredi 15 mai 2019 / 09:00 - 18:00

    (Haut Carré, Talence)

Détails

Date :
21 septembre 2018
Heure :
14:00 - 15:00