Christian Lorenzi

Name (First LAST): Christian LORENZI
Phone: +33 (0)1 44 32 26 74 / 31 13
Email: christian.lorenzi (at) ens.fr
Position: Full Professor in Experimental Psychology at Ecole normale superieure; Directeur des études scientifiques de l'ENS (director of scientific studies)
LSP team: Audition
Office: Morning: Direction des études, ENS, 45 rue d'Ulm, 75005 Paris; Afternoon : UMR CNRS LSP, ENS, DEC, 29 rue d'Ulm, 2nd floor

Google Scholar, Web of SciencePublications

"Auditory Perception of Amplitude and Frequency Modulations in Sounds"
(A brief course)

Curriculum vitae

Short Biography

I was trained in Psychology at Univ Lyon II. I then obtained a Master degree in Cognitive Sciences and a Ph.D. in Experimental Psychology in the same university. I have worked at the Applied Psychology Unit of the Medical Research Council (MRC, Cambridge, UK) as a post-doctoral scientist, and at the Institute of Hearing Research of the MRC (Glasgow, UK) as a junior scientist. I was recruited at the Univ Paris Descartes as lecturer (1997) and then full professor (2001), before taking a position of full professor in Experimental Psychology at the Ecole normale superieure (Paris) in 2011. I am a fellow of the Acoustical Society of America and a former (junior) member of IUF (2001). My research program focuses on temporal processing by the normal and impaired auditory system in humans. 

J’ai obtenu une licence et maîtrise de psychologie, puis un DEA de sciences cognitives et un doctorat de psychologie (1995) à l'Université Lyon II. J’ai ensuite travaillé à l'Applied Psychology Unit du Medical Research Council (MRC, Cambridge, GB) comme post-doctorant, puis à l'Institute of Hearing Research du MRC (Glasgow, GB) comme chargé de recherche. J’ai été recruté comme Maître de Conférences puis professeur de psychologie à l'université Paris Descartes (1997) avant d’être recruté comme professeur de psychologie expérimentale à l'Ecole normale supérieure (Paris) en 2011. J’ai été nommé membre junior de l'IUF (2001) puis Fellow of the Acoustical Society of America (2008). Ma recherche porte sur les traitements temporels réalisés par le système auditif normal et pathologique de l’homme.

 

Research Interest

My research program focuses on the processing of the temporal structure of sounds by the normal and impaired auditory system in humans. I study the auditory perception of two types of temporal modulations of the acoustic signal, the temporal envelope and temporal fine structure, using various approaches (psychophysics, clinical audiology, computer modeling, developmental psychology, neuropsychology, brain imaging, electrophysiology).

 

Teaching

I have taught experimental psychology, psychophysics and connexionism at the University of Paris Descartes. I now give lectures in hearing sciences and psychoacoustics in the masters of cognitive sciences from the Ecole Normale Supérieure, EHESS, Université Paris Descartes, and I have been co-ordinating the Psychology strand of this masters degree.

 

Administration

 

  • Director of Scientific Studies at Ecole normale superieure, Paris (2014 - ...)
  • Head of the Departement d’Etudes Cognitives, Ecole normale supérieure, Paris (2009-2013)
  • Head of the ‘Institut d’Etude de la Cognition (LabEx IEC, ranked A+, 2011, Investissements d’avenir program)” of Ecole normale supérieure (2011-2013: Budget: € 8.5 M))
  • Leader of the “Audition” team of the UMR 8158 (2004-2007; 3 PIs, 1 Technician,~ 10 PhD students/postdocs)
  •  Founder (2005) and director (2005-2009) of the national consortium for research in audiology, GDR-GRAEC (CNRS GDR 2967, ~27 partners)
  • Member of Section 16 “Psychologie” of the Conseil National des Universités, CNU” (2007-2011)
  • Member of the “Commission nationale d’attribution des Primes d’Encadrement Doctoral (PEDR) et des Primes d’Excellence Scientifique PES” (2008, 2009)
  • Member of the “Comité Opérationnel d’Ethique (COPE ; CNRS Ethics committee) » du CNRS” (2006)

 

Selected publications

Paraouty, N., Ewert, S., Wallaert, N., & Lorenzi, C. (2016). Interactions between amplitude-modulation and frequency-modulation processing: Effects of age and hearing loss. Journal of the Acoustical Society of America, 140,121-131.

Wallaert, N., Moore, B.C.J., & Lorenzi, C. (2016). Comparing the effects of age on amplitude-modulation and frequency-modulation detectionJournal of the Acoustical Society of America, 139, 3088-3096.

Cabrera, L., Tsao, F.-M., Liu, H.-M., Li, L.-Y., Hu, Y.-H, Lorenzi, C. & Bertoncini, J. (2015). The perception of speech modulation cues in lexical tones is guided by early language-specific experienceFrontiers in Psychology, 6:1290. doi: 10.3389/fpsyg.2015.01290

Shamma, S., & Lorenzi, C. (2013). On the balance of envelope and temporal fine structure in the encoding of speech in the early auditory systemJournal of the Acoustical Society of America, 133, 2818-2833.

Léger, A.C., Moore, B.C.J., & Lorenzi, C. (2012). Temporal and spectral masking release in the low- and mid-frequency range for normal-hearing and hearing-impaired listenersJournal of the Acoustical Society of America, 131, 1502-1514.

Lorenzi, C., Debruille, L., Garnier, S., Fleuriot, P., & Moore, B.C.J. (2009). Abnormal auditory temporal processing for frequencies where absolute thresholds are normalJournal of the Acoustical Society of America, 125, 27-30.

Lorenzi, C., Gilbert, G., Carn, H., Garnier, S., & Moore, B.C.J. (2006). Speech perception problems of the hearing impaired reflect inability to use temporal fine structureProceedings of the National Academy of Science USA103(49), 18866-18869.

Gilbert, G., & Lorenzi, C. (2006). The ability of listeners to use recovered envelope cues from speech fine structure. Journal of the Acoustical Society of America119, 2438-2444.

Ziegler, J.C., Pech-Georgel, C., George, F, Alario, F-X., & Lorenzi, C. (2005). Deficits in speech perception predict language learning impairmentProceedings of the National Academy of Science USA102, 14110-14115.

Liégeois-Chauvel, C., Lorenzi, C., Trébuchon, A., Régis, J., & Chauvel, P. (2004). Temporal envelope processing in the human left and right auditory cortices. Cerebral Cortex14, 731-740.

Lorenzi, C., Soares, C., & Vonner, T. (2001). Second order temporal modulation transfer functions. Journal of the Acoustical Society of America110, 1030-1038.

Giraud, A. L., Lorenzi, C., Ashburner, J., Wable, J., Johnsrude, I., Frackowiak, R., & Kleinschmidt, A. (2000). Representation of the temporal envelope of sounds in the human brain. Journal of Neurophysiology84, 1588-1598.