Colloquium du DEC
De 11h30 à 13h, Salle Jaurès, 29 rue d'Ulm, 75005 Paris.
Accédez au Google agenda des événements internes (*) au DEC ouverts à tous ici.
(*) Le External DEC serie et le DEC Lunch ont lieu le mardi et sont ouverts à l'ensemble des membres du DEC.
27 septembre 2017
Bob Carlyon (MRC Cognition & Brain Sciences Unit, Cambridge, Englan) : "Pitch perception in acoustic and electric hearing: Hunting down the missing fundamentals"
Ce colloquium aura lieu exceptionnellement lieu en Dussane (45 rue d'Ulm) de 11h30 à 13h.
Pitch perception is important not only for the enjoyment of music and for the perception of prosody in speech, but also for our ability to process one sound, such as a voice, in the presence of competing sounds. Poor pitch perception, and the resulting difficulties when listening in noisy situations, are a common source of disability in deaf patients whose hearing has been restored by a cochlear implant (CI). I will summarise some experiments that address the following questions; (i) What aspects of the auditory-nerve response to sound are crucial for good pitch perception by normal hearing (NH) listeners? (ii) What is the biological basis for the severe limitations in pitch perception experienced by CI users? (iii) Are these limits fixed, or can they be partially overcome by the chronic electrical stimulation that occurs in the months following activation of a patient’s CI?, (iv) can pitch perception by CI users be improved by a drug that modulated fast-acting potassium channels? The experiments involve a combination of NH psychoacoustics, investigation of an illusory percept, CI psychophysics, electrophysiological recordings, and the results of a double-blind placebo-controlled drug trial. I will also briefly describe other experiments from our lab that aim to improve hearing by CI listeners.
10 octobre 2017
Bahador Bahrami : "Wisdom, madness, and kindness of Crowds: What is the adaptive value of collective decision making?"
Many of us believe that two heads are better than one. Almost all of us also believe that too many cooks spoil the broth. Social psychology has provided evidence for both views raising the question if groups are not particularly better than individuals, what is the point of making decisions together? In my talk I will explore this question and suggest that consistent collective benefit is indeed real and achievable but not in the form of choice accuracy. You will have to sit through the talk - I am afraid - to see what my alternative is.
28 novembre 2017
Jennifer Culbertson : "Cognitive constraints on language learning"
Looking across the world’s languages, we can often see that not all possible linguistic patterns are equally common. Explaining why this is the case is a topic of longstanding debate in cognitive science. In this talk, I will focus on one well-studied example, the order of elements in the noun phrase. I will argue that two very general forces– simplicity and naturalness–can largely explain why some noun phrase orders are much more common than others. Simplicity pushes languages to maintain a consistent order of the head noun with respect to different modifying elements (e.g., demonstratives, adjectives, numerals). Naturalness favors alignment between linear order and underlying semantic or conceptual structure. I will outline a series of experiments aimed at confirming the behavioral effects of these forces, and report a cross-linguistic quantitative analysis of corpus data exploring how the semantic representations underlying naturalness in this domain might emerge during development.
12 décembre 2017
Larry Young : "Neurobiology of Social Bonding, Social Loss and Empathy: Implications for Autism."
16 janvier 2018
Michael Bang Petersen : "The Design of the Political Mind"
13 février 2018
Sonja Vernes : "Babbling bats and spoken language: a neurogenetic approach"
Mars (date TBC), 2018
Esther Duflo (MIT) : "Bringing cognitive science to the field: Education in India"
10 avril 2018
Eva Fedorenko : "The cognitive and neural architecture of the human language system"
29 mai 2018
Josh Tennenbaum : "Reverse-engineering common sense in the human mind and brain"