Speech training alters consonant and vowel responses in multiple auditory cortex fields.

ABSTRACT: Speech sounds evoke unique neural activity patterns in primary auditory cortex (A1). Extensive speech sound discrimination training alters A1 responses. While the neighboring auditory cortical fields each contain information about speech sound identity, each field processes speech sounds differently. We hypothesized that while all fields would exhibit training-induced plasticity following speech training, there would be unique differences in how each field changes. In this study, rats were trained to discriminate speech sounds by consonant or vowel in quiet and in varying levels of background speech-shaped noise. Local field potential and multiunit responses were recorded from four auditory cortex fields in rats that had received 10 weeks of speech discrimination training. Our results reve

SUBMITTER: Engineer CT 

PROVIDER: S-EPMC4424170 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature