Investigating Electrical Categorical Loudness Scaling Using a Mobile Research App in Experienced Adult Cochlear Implant Participants

The Standard-ELS task is conducted using the Mobile Research Application within the Nexus Research system. It is completed in two phases: the first phase identifies the lower and upper bounds of the loudness range based on participant ratings, while the second phase collects data from stimulations delivered within the established range.

The Fast-ELS task employs an algorithm to estimate the lower and upper bounds of the loudness range using a limited number of samples. This range is then refined by collecting additional samples across various loudness categories for comprehensive coverage.