Deactivating cochlear implant electrodes based on pitch ranking worsens spectral resolution without improving speech.

Evidence

For CAPT, CCRM in speech-shaped noise and babble there were no significant differences between any of the mapping options at the p < 0.05 level. However, the SMRT was significantly poorer for the indiscriminable electrodes deactivated than the clinical map (z = ‑2.9, p = 0.004) and also significantly poorer when the discriminable electrodes were de-activated (z = ‑2.62, p = 0.009). — Dijk, Pim van, Physiology, Psychoacoustics and…, 2109

Categorization

• XREF: Connects to the reader’s broader interest in cochlear implant fitting strategies and pitch perception physiology.