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Updated: Feb 5, 2026

Electrically Evoked Stapedius Reflex Measurements in Cochlear Implantation and Its Application in the Postoperative Fitting Process
Published on: June 21, 2024
The effect of polarity order and electrode-activation order on loudness in cochlear implant users
Ann E Todd1, David M Landsberger1
1Department of Otolaryngology, New York University School of Medicine, 550 First Avenue, NBV 5E5, New York, New York 10016, USA anntodd3@gmail.com, david.landsberger@nyumc.org.
Abstract:
This study examined the interaction between polarity and electrode-activation order on loudness in cochlear implant users. Pulses were presented with the polarity of the leading phase alternating or constant across channels. Electrode-activation order was either consecutive or staggered. Staggered electrode-activation orders required less current for equal loudness than consecutive orders with constant polarity. Consecutive electrode-activation orders required less current than staggered orders with alternating polarity. The results support the hypothesis that crosstalk between channels can interfere with or facilitate neuronal activation depending on polarity.
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