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  • DEC Colloquium

    From 11:30 to 1:00 pm, Jaurès, 29 rue d'Ulm, 75005 Paris.

    You can access the Google agenda of the internal events open to all DEC members here.

    (*) The External DEC series and the DEC Lunch series take place on Tuesday and are open to all DEC members.

    PROGRAMME 2017

    January 10, 2017 (DEC-Ling)

    Marie Coppola (University of Connecticut)
    Sign language and language emergence

    February 21, 2017 (LNC)

    Emeran Mayer (UCLA)
    The emerging science of brain gut microbiome communication


    Preclinical studies published during the past decade have clearly established an important role of the gut microbiota in behavior and in the modulation of key components of the gut brain axis, including brain structure and function. However, there is limited evidence from studies in human subjects to demonstrate a causative role of gut microbiota brain interactions in health and disease. Our group has published the first evidence that perturbation of the gut microbiome in healthy individuals can lead to altered brain responses to emotional stimuli. This effect was likely mediated by alterations in gut microbial metabolites, as no effect of the probiotic intervention on gut microbial composition was observed. A number of clinical studies have identified associations of altered gut microbial composition with clinical symptoms of patients with major depressive disorder, Parkinson’s disease, hepatic encephalopathy, and autism spectrum disorders. Fecal microbial transfer from some of these patients alters emotional behavior in rodents. Associations of gut microbial composition and metabolites with brain parameters have also been shown in patients with irritable bowel syndrome and in healthy subjects. We have been using multimodal brain imaging of healthy human subjects and disease populations (irritable bowel syndrome, obesity) to identify correlations between a multitude of structural and functional brain parameters with gut microbial composition and microbial metabolites. Early results demonstrate cross sectional correlations between gut microbial composition and grey and white matter changes primarily within sensory processing regions of the brain. In ongoing studies, we are looking at the involvement of gut microbiota and their metabolites in brain changes in mediating the therapeutic effects of bariatric surgery in obesity, and of mind based therapies (cognitive behavioral therapy, mindfulness based stress reduction) in chronic visceral pain

    More about Emeran Mayer:
    Emeran A Mayer is a Gastroenterologist, Neuroscientist and Professor in the Departments of Medicine, Physiology and Psychiatry at the David Geffen School of Medicine at UCLA. He is the Executive Director of the G. Oppenheimer Center for Neurobiology of Stress and Resilience at UCLA, and co-director of the CURE: Digestive Diseases Research Center. As one of the pioneers and leading researchers in the role of mind-brain-body interactions in health and chronic disease, his scientific contributions to U.S. national and international communities in the broad area of basic and translational enteric neurobiology with wide-ranging applications in clinical GI diseases and disorders is unparalleled. He has published more than 300 scientific papers, and co edited 3 books. He is the recipient of the 2016 David McLean award from the American Psychosomatic Society. His most recent work has focused on the dialogue between the gut microbiota and the brain, the role of food addiction in obesity, and the role of the brain in chronic inflammatory diseases of the gut.

    Mayer has a longstanding interest in ancient healing traditions and affords them a level of respect rarely found in Western Medicine. He has been involved in documentary film productions about the Yanomami people in the Orinoco region of Venezuela, and the Asmat people in Irian Jaya, and has recently co produced the award winning documentary “In Search of Balance”.

    Dr. Mayer has been interviewed on National Public Radio, PBS and by many national and international media outlets including the Los AngelesTimes, Atlantic magazine and Stern and Spiegel Online. He has spoken at UCLA TEDx on the Mysterious Origins of Gut Feelings in 2015, and his book The Mind Gut Connection was published by Harper&Collins in July of 2016 and has been translated into 10 languages.

    March 21, 2017 (IJN)

    Peter Carruthers (University of Maryland)
    The conscious mind as marionette


    We tend to think that our conscious minds that are in control, much of the time; or at any rate, that our conscious minds are capable of taking control. When we pause to reflect, and act on our reflections, it is our conscious thoughts -- our conscious beliefs, goals, and decisions -- that get to control what we do. Or so we think. But this sense of self-control is an illusion. In reality our conscious minds are controlled and manipulated by unconscious processes. We decide what to pay attention to, what to remember, what to think of, what to imagine, and what sentences to rehearse in inner speech, thereby determining the conscious contents of working memory. There is control, of course, and it is a form of self-control. But is not control by a conscious self. Rather, what we take to be the conscious self is a puppet manipulated by our unconscious goals, beliefs, and decisions. This account is supported by a raft of evidence from across cognitive science.

    April 25, 2017 (LNC)

    Jonathan Cohen (Princeton University)
    Neuroscience of cognitive control

    May 23, 2017 (LSCP)

    Daniel Margoliash (University of Chicago)
    Neuroethology of vocal learning

    PROGRAMME 2017-2018

    September 26, 2017 (LSP)

    Barbara Shinn-Cunningham

    October 10, 2017 (NPI)

    David Poeppel

    November 7, 2017 (IJN)

    Jennifer Nagel