LMA - Laboratoire de Mécanique et d’Acoustique

Olivier MACHEREY

Chargé de Recherche, CNRS

Mes recherches concernent la perception auditive des sujets implantés cochléaires. Nous cherchons à mieux comprendre les mécanismes sous-jacents à la stimulation électrique du nerf auditif et à proposer et tester de nouvelles méthodes de codage destinées à améliorer la perception des sons des porteurs d’implants. Ces recherches s’organisent autour d’un projet ANR Retour Post-doc (DAIMA) que je coordonne et sur lequel travaillent Gaston Hilkhuysen, Pierre Stahl et Quentin Mesnildrey.

CV

  • 2011 - ....... : Chargé de Recherche CNRS
  • 2010 - 2011 : Post-Doc, Laboratoire de Neurosciences Intégratives et Adaptatives, Aix-Marseille Université
  • 2007 - 2011 : Post-Doc, MRC Cognition and Brain Sciences Unit, Cambridge, Royaume-Uni
  • 2003 - 2007 : Doctorat, ExpORL, Leuven, Belgique

Principales activités de recherche

  • implants cochléaires.
  • Simulations acoustiques d’implants cochléaires
  • Perception de la hauteur tonale
  • Modélisation

Publications

  • Q. Mesnildrey, O. Macherey, P. Herzog, and F. Venail (2019) “Impedance measures for a better understanding of the electrical stimulation of the inner ear.” J. Neural Eng. 16:016023.
  • R.P. Carlyon, J.M. Deeks, J. Undurraga, O. Macherey, and A. van Wieringen (2017) “Spatial selectivity in cochlear implants : effects of asymmetric waveforms and development of a single-point measure.” J. Assoc. Res. Otolaryngol. 18:711-727.
  • O. Macherey, R.P. Carlyon, J. Chatron, and S. Roman (2017) “Effect of pulse polarity on thresholds and on non-monotonic loudness growth in cochlear implant users.” J. Assoc. Res. Otolaryngol. 18:513-527.
  • Y. Adel, G. Hilkhuysen, A. Norena, Y. Cazals, S. Roman, and O. Macherey (2017) “Forward masking in cochlear implant users : Electrophysiological and psychophysical data using pulse train maskers.” J. Assoc. Res. Otolaryngol. 18:495-512.
  • O. Macherey and Y. Cazals (2016) “Effects of pulse shape and polarity on sensitivity to cochlear implant stimulation : A chronic study in guinea pigs”, Adv. Exp. Med. Biol. 894:133-142.
  • P. Stahl, O. Macherey, S. Meunier, and S. Roman (2016) “Rate discrimination at low pulse rates in normal-hearing and cochlear implantees : Influence of intracochlear stimulation site”, J. Acoust. Soc. Am. 139:1578-1591.
  • Q. Mesnildrey, G. Hilkhuysen, and O. Macherey (2016) “Pulse spreading harmonic complex as an alternative carrier for vocoder simulations of cochlear implants”, J. Acoust. Soc. Am. 139:986-991.
  • Q. Mesnildrey, and O. Macherey (2015) “Simulating the dual-peak excitation pattern produced by bipolar stimulation of a cochlear implant”, Hear. Res. 319:32-47.
  • O. Macherey, and R.P. Carlyon (2014) “Cochlear implants”, Curr. Biol. 24 : R878-884.
  • O. Macherey, and R.P. Carlyon (2014) “Re-examining the upper limit of temporal pitch”, J. Acoust. Soc. Am. 136:3186-3199.
  • G. Hilkhuysen, and O. Macherey (2014) “Optimizing pulse-spreading harmonic complexes to minimize intrinsic modulations after auditory filtering”, J. Acoust. Soc. Am. 136:1281-1299.
  • R.P. Carlyon, J. Monstrey, J.M. Deeks, and O. Macherey (2014) “Evaluation of a cochlear-implant processing strategy incorporating phantom stimulation and asymmetric pulses”, Int. J. Audiol. 53:871-879.
  • R.P. Carlyon, J.M. Deeks, and O. Macherey (2013) “Polarity effects on place pitch and loudness for three cochlear-implant designs and at different cochlear sites.” J. Acoust. Soc. Am. 134 : 503-509.
  • O. Macherey, and A. Delpierre. (2013) “Musical timbre perception by cochlear implant listeners : a multidimensional scaling study.” Ear. Hear. 34 : 426-436.
  • J. Undurraga, R.P. Carlyon, O. Macherey, J. Wouters, and A. Van Wieringen. (2012) “Spread of excitation varies for different electrical pulse shapes and stimulation modes in cochlear implants.” Hear. Res. 290 : 21-36.
  • O. Macherey, and R.P. Carlyon. (2012) “Place-pitch manipulations with cochlear implants.” J. Acoust. Soc. Am. 131 : 2225-2236.
  • O. Macherey, J. Deeks, and R.P. Carlyon. (2011) “Extending the range of place and temporal pitch percepts by cochlear implant listeners.” J. Assoc. Res. Otolaryngol. 12 : 233-251.
  • J. Undurraga, A. van Wieringen, R.P. Carlyon, O. Macherey, and J. Wouters. (2010) “Polarity effects on neural responses of the electrically stimulated auditory nerve at different cochlear sites.” Hear. Res. 269:146-161.
  • R.P. Carlyon, O. Macherey, J.H. Frijns, P.R. Axon, R.K. Kalkman, P. Boyle, D.M. Baguley, J. Briggs, J.M. Deeks, J.J. Briaire, X. Barreau, and R. Dauman. (2010) “Pitch comparisons between electrical stimulation of a cochlear implant and acoustic stimuli presented to a normal-hearing contralateral ear. J. Assoc. Res. Otolaryngol. 11 : 625-640.
  • O. Macherey and R.P. Carlyon. (2010) “Temporal pitch percepts elicited by dual-channel stimulation of a cochlear implant.” J. Acoust. Soc. Am. 127:339-349.
  • O. Macherey, A. van Wieringen, R.P. Carlyon, I. Dhooge, and J. Wouters. (2010) “Forward-masking patterns produced by symmetric and asymmetric pulse shapes in electric hearing.” J. Acoust. Soc. Am. 127:326-338.
  • A. van Wieringen, O. Macherey, R.P. Carlyon, J.M. Deeks, and J. Wouters. (2008) “Alternative pulse shapes in electrical hearing.” Hear. Res. 242 : 154-163.
  • O. Macherey, R.P. Carlyon, A. van Wieringen, J.M. Deeks, and J. Wouters. (2008) “Higher Sensitivity of human auditory nerve fibers to positive electrical currents.” J. Assoc. Res. Otolaryngol. 9 : 241-251.
  • O. Macherey, R.P. Carlyon, A. van Wieringen, and J. Wouters. (2007) “A dual-process integrator-resonator model of the electrically stimulated human auditory nerve.” J. Assoc. Res. Otolaryngol. 8 : 84-104.
  • A. van Wieringen, R.P. Carlyon, O. Macherey, and J. Wouters. (2006) “Effects of pulse rate on thresholds and loudness of biphasic and alternating monophasic pulse trains in electrical hearing.” Hear. Res. 220 : 49-60.
  • O. Macherey, A. van Wieringen, R.P. Carlyon, J.M. Deeks, and J. Wouters. (2006) “Asymmetric pulses in cochlear implants : Effects of pulse shape, polarity and rate.” J. Assoc. Res. Otolaryngol. 7 : 253-66.
  • T. Green, A. Faulkner, S. Rosen, and O. Macherey. (2005) “Enhancement of temporal periodicity cues in cochlear implants : Effects on prosodic perception and vowel identification.” J. Acoust. Soc. Am. 118 : 375-385.

L’ensemble de mes publications sont accessibles sur HAL.