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We are a public research laboratory in Paris specializing in the psychophysics, experimental and developmental psychology of perception, action, and language. Please click on the links to the left to learn more about our research and teaching.
Here is our report.

Our director is Florian WASZAK
and our associate director is Thierry NAZZI

Event Information:

  • Mon
    26
    Nov
    2018

    LPP seminar: Christian Lorenzi, Laboratoire des Systèmes Perceptifs, ENS Paris

    11hSalle de réunion du LPP, H432, 4ème étage, Centre Biomédical des Saints Pères 45 rue des Sts Pères, 75006 Paris

    Applying the modulation theory to hearing

    One of the most influential research programs in hearing sciences aims to  apply the modulation theory to auditory perception. This theory, inspired by telecommunication sciences, relies on the following ‘core’ assumptions: (i) communication sounds including speech and animal vocalizations convey salient and slow temporal modulation cues; (ii) the auditory system of species using communication sounds has evolved to optimize its responses to these modulation cues; (iii) the transmission  of information conveyed by communication signals is constrained by the ‘modulation transfer function’ (MTF) of the transmission path (a room, a hearing aid,...). We will show how the psychophysical and neurophysiological investigation of modulation perception by humans and by other species contributed to an in-depth understanding of the demodulation processes implemented in the peripheral and central auditory system. We will show how this work yielded models of modulation processing that account for a large range of listening situations including speech comprehension in quiet and in noise. Finally, we will show how his work contributed to a better understanding of the perceptual consequences of ageing and cochlear damage, and a better control of information transmission via rehabilitation systems.

    https://en.wikipedia.org/wiki/Temporal_envelope_and_fine_structure