A single EEG response can reveal which binaural pathway cochlear implant users rely on

Evidence

The IPM-FR, therefore, appears able to distinguish between these two pathways based on the preferred IPDs employed to evoke the response. This provides a possible means of distinguishing which of the binaural pathways is activated in bilateral CI users, as well as a means of objective fitting of devices. Work is currently underway to assess the IPM-FR in bilateral CI users. The EEG recording of steady-state responses in CI users is made challenging by the electrical artefacts created by stimulus pulses, but artefact rejection techniques have been successfully applied for the recording of AM-evoked steady-state responses (e.g., Hofmann and Wouters 2010 ). — Dijk, Pim van, Physiology, Psychoacoustics and…, 2986

Categorization

• QUESTION: Worth following: does objective device fitting via IPM-FR outperform current behavioral CI fitting methods, and does pathway identification predict real-world benefit?