Skip to main content
Article thumbnail
Location of Repository

The perception of stress pattern in young cochlear implanted children: an EEG study

By Niki Katerina Vavatzanidis, Niki Katerina Vavatzanidis, Dirk eMürbe, Angela Dorkas Friederici and Anja eHahne

Abstract

Children with sensorineural hearing loss may (re)gain hearing with a cochlear implant – a device that transforms sounds into electric pulses and bypasses the dysfunctioning inner ear by stimulating the auditory nerve directly with an electrode array. Many implanted children master the acquisition of spoken language successfully, yet we still have little knowledge of the actual input they receive with the implant and specifically which language sensitive cues they hear. This would be important however, both for understanding the flexibility of the auditory system when presented with stimuli after a (life-)long phase of deprivation and for planning therapeutic intervention. In rhythmic languages the general stress pattern conveys important information about word boundaries. Infant language acquisition relies on such cues and can be severely hampered when this information is missing, as seen for dyslexic children and children with specific language impairment. Here we ask whether children with a cochlear implant perceive differences in stress patterns during their language acquisition phase and if they do, whether it is present directly following implant stimulation or if and how much time is needed for the auditory system to adapt to the new sensory modality. We performed a longitudinal ERP study, testing in bimonthly intervals the stress pattern perception of 17 young hearing impaired children (age range: 9-50 months; mean: 22 months) during their first 6 months of implant use. An additional session before the implantation served as control baseline. During a session they passively listened to an oddball paradigm featuring the disyllable baba, which was stressed either on the first or second syllable (trochaic vs. iambic stress pattern). A group of age-matched normal hearing children participated as controls.Our results show, that within the first 6 months of implant use the implanted children develop a negative mismatch response for iambic but not for trochaic deviants, thus showing the same result as the normal hearing controls. Even congenitally deaf children show the same developing pattern. We therefore conclude a) that young implanted children have early access to stress pattern information and b) that they develop ERP responses similar to those of normal hearing children

Topics: Auditory Perception, Cochlear Implants, Deafness, Hearing Loss, Sensorineural, Children, EEG/ERP, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
Publisher: Frontiers Media S.A.
Year: 2016
DOI identifier: 10.3389/fnins.2016.00068
OAI identifier: oai:doaj.org/article:2fbcb10e4fe54f228a28c4964c9ce920
Journal:
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • https://doaj.org/toc/1662-453X (external link)
  • http://journal.frontiersin.org... (external link)
  • https://doaj.org/article/2fbcb... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.