Auditory memory for random time patterns in cochlear implant listeners.

HiJee Kang, Olivier Macherey, Stéphane Roman, Daniel Pressnitzer
Author Information
  1. HiJee Kang: Laboratoire des Systèmes Perceptifs, Département d'études Cognitives, École Normale Supérieure, PSL University, CNRS, 29 Rue d'Ulm, 75005 Paris, France.
  2. Olivier Macherey: Aix-Marseille University, CNRS, Centrale Marseille, LMA, 4 impasse Nikola Tesla, CS40006, 13453 Marseille, Cedex 13, France.
  3. Stéphane Roman: Department of Pediatric Otolaryngology and Neck Surgery, Aix-Marseille University, 264 Rue Saint Pierre, 13005 Marseille, France.
  4. Daniel Pressnitzer: Laboratoire des Systèmes Perceptifs, Département d'études Cognitives, École Normale Supérieure, PSL University, CNRS, 29 Rue d'Ulm, 75005 Paris, France.

Abstract

Learning about new sounds is essential for cochlear-implant and normal-hearing listeners alike, with the additional challenge for implant listeners that spectral resolution is severely degraded. Here, a task measuring the rapid learning of slow or fast stochastic temporal sequences [Kang, Agus, and Pressnitzer (2017). J. Acoust. Soc. Am. 142, 2219-2232] was performed by cochlear-implant (N = 10) and normal-hearing (N = 9) listeners, using electric or acoustic pulse sequences, respectively. Rapid perceptual learning was observed for both groups, with highly similar characteristics. Moreover, for cochlear-implant listeners, an additional condition tested ultra-fast electric pulse sequences that would be impossible to represent temporally when presented acoustically. This condition also demonstrated learning. Overall, the results suggest that cochlear-implant listeners have access to the neural plasticity mechanisms needed for the rapid perceptual learning of complex temporal sequences.

MeSH Term

Acoustic Stimulation
Acoustics
Cochlear Implantation
Cochlear Implants
Hearing Tests
Speech Perception

Word Cloud

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