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Published on: January 29, 2014
Assessing Neural Synchrony in the Cochlear Nerve to Electrical Stimulation in Children With Auditory Neuropathy
Shuman He1, Xiuhua Chao2, Yi Yuan1
1Department of Otolaryngology-Head and Neck Surgery, The Ohio State University, Columbus, Ohio, USA.
Objectives:
This study reported phase locking values (PLVs) that quantified the trial-to-trial phase coherence of electrically evoked compound action potentials in children with auditory neuropathy spectrum disorders (ANSD) and children with Gap Junction Beta 2 (GJB2) mutations, a patient population without noticeable cochlear nerve damage.
Design:
PLVs were measured at three electrode locations in 11 children with ANSD and 11 children with GJB2 mutations. Smaller PLVs indicated poorer neural synchrony. A linear mixed-effects model was used to compare PLVs measured at different electrode locations between participant groups.
Results:
After controlling for the stimulation level effect, children with ANSD had smaller PLVs than children with GJB2 mutations at all three electrode locations.
Conclusions:
Cochlear-implanted children with ANSD show poorer peripheral neural synchrony than children with GJB2 mutations.
