Online Archive

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  • ONLINE SEMINARS

    ISCA International Online Seminars

    A seminar programme is an important part of the life of a research lab, especially for its research students, but it's difficult for scientists to travel to give talks at the moment. However,  presentations may be given on line and, paradoxically, it may thus be possible for labs to engage international speakers who they wouldn't normally be able to afford.

    ISCA is setting up a pool of speakers prepared to give on-line talks. In this way we can enhance the experience of students working in our field, often in difficult conditions.

    This scheme complements the distinguished lecturer programme,  and the DLs have been asked to consider lecturing remotely, with interaction.

    The current list of speakers is below. If you want to be added, or to suggest a colleague, all we need is a title, a short abstract, a 1 paragraph biopic and contact details. Send email to Phil Green, This email address is being protected from spambots. You need JavaScript enabled to view it.

    Speakers may pre-record their talks if they wish, but they don't have to. It is up to the host lab to contact speakers and make the arrangements. Talks can be state-of-the-art, or tutorials.

    Seminar Speakers

    Jean-Luc Schwartz

    Jean-Luc Schwartz, a Research Director at CNRS, studies speech perception, perceptuo-motor interactions in speech communication, phonetic bases of phonological systems and the emergence of language, with publications in generalist journals (Sciences Advances, Proceedings of the National Academy of Sciences USA) or specialized journals in cognitive psychology (e.g. Cognition, Perception & Psychophysics, Psychological Review, Behavioral & Brain Sciences, Hearing Research), neurosciences (e.g. Neuroimage, Human Brain Mapping, PLOS Comp. Biol., Brain & Language), signal processing and computational modelling (e.g. IEEE Trans. Speech and Audio Processing, JASA, Computer Speech and Language, Language and Cognitive Processes, Neural Computation), and phonetics in relation with phonology (e.g. Journal of Phonetics, Phonetica, Phonology Laboratory). He has been involved in many national and European projects, and was the PI of an ERC Advanced Grant called “Speech Unit(e)s - The multisensory-motor unity of speech”.

     

    The perceptuo-motor nature of speech communication units, in light of phonetic knowledge, Bayesian computational models and neurocognitive data

     

    Jean-Luc Schwartz, GIPSA-lab, Grenoble, France, CNRS – Univ. Grenoble Alpes

    jean-luc.schwartz@gipsa-lab.grenoble-inp

    The quest for phonetic invariance has crossed the speech communication literature since more than 50 years, motivating theories, generating experiments and resulting in the analysis of many laboratory or real-life phonetic data. In the last 15 years we have been developing a perceptuo-motor framework jointly addressing the nature of speech perception and production processes and claiming that speech communication units, emerging from the co-structuration of  perception and action in the course of speech development, are neither a sound, nor a gesture, but a perceptually-shaped gesture, that is a perceptuo-motor unit characterized by both its articulatory coherence  – provided by its gestural nature – and its perceptual value  – necessary for being functional (Schwartz et al., 2012).

     

     

    In this talk, starting from phonetic arguments in favor of this “perceptuo-motor theory of speech communication”, I will present a Bayesian computational modeling framework called COSMO (“Communication Objects by Sensori-Motor Operations”) which enabled to address a number of questions related to the nature, development and perceptual processing of speech units in relation with neurocognitive data on speech perception in the human brain.

     

     

    Schwartz, J.L., Basirat, A., Ménard, L., & Sato, M. (2012). The Perception for Action Control Theory (PACT): a perceptuo-motor theory of speech perception. Journal of NeuroLinguistics, 25, 336-354.

    Moulin-Frier, C., Diard, J., Schwartz, J.L., & Bessière, P. (2015). COSMO (“Communicating about Objects using Sensory-Motor Operations”): a Bayesian modeling framework for studying speech communication and the emergence of phonological systems. J. Phon. 53, 5-41.

     

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