Predictive processing increases intelligibility of acoustically distorted speech: Behavioral and neural correlates.

ABSTRACT:

Introduction

We examined which brain areas are involved in the comprehension of acoustically distorted speech using an experimental paradigm where the same distorted sentence can be perceived at different levels of intelligibility. This change in intelligibility occurs via a single intervening presentation of the intact version of the sentence, and the effect lasts at least on the order of minutes. Since the acoustic structure of the distorted stimulus is kept fixed and only intelligibility is varied, this allows one to study brain activity related to speech comprehension specifically.

Methods

In a functional magnetic resonance imaging (fMRI) experiment, a stimulus set contained a block of six distorted sentences. This was followed by the intact counterparts of the sentences

SUBMITTER: Hakonen M 

PROVIDER: S-EPMC5607552 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature