Cortical Activation Patterns Correlate with Speech Understanding After Cochlear Implantation.

ABSTRACT:

Objectives

Cochlear implants are a standard therapy for deafness, yet the ability of implanted patients to understand speech varies widely. To better understand this variability in outcomes, the authors used functional near-infrared spectroscopy to image activity within regions of the auditory cortex and compare the results to behavioral measures of speech perception.

Design

The authors studied 32 deaf adults hearing through cochlear implants and 35 normal-hearing controls. The authors used functional near-infrared spectroscopy to measure responses within the lateral temporal lobe and the superior temporal gyrus to speech stimuli of varying intelligibility. The speech stimuli included normal speech, channelized speech (vocoded into 20 frequency bands), and scrambled speech (

SUBMITTER: Olds C 

PROVIDER: S-EPMC4844823 | biostudies-literature | 2016 May-Jun

REPOSITORIES: biostudies-literature