Functional near-infrared spectrometry for auditory speech stimuli in cochlear implant users: a systematic literature review.

Objective: This study aims to identify the acquisition features of functional near-infrared spectroscopy (fNIRS) in cochlear implant users.

Methods: A systematic literature review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. PubMed, EMBASE, LILACS, Web of Science, Scopus, PsycINFO, IEEE Xplore, Google Scholar, and ProQuest Dissertations & Theses Global were searched using the PECOS acronym.