Communication Sciences and Disorders Commons^™

Speech-Evoked Brain Activity Is More Robust To Competing Speech When It Is Spoken By Someone Familiar, Emma Holmes, Ingrid S. Johnsrude

Communication Sciences and Disorders Publications

When speech is masked by competing sound, people are better at understanding what is said if the talker is familiar compared to unfamiliar. The benefit is robust, but how does processing of familiar voices facilitate intelligibility? We combined high-resolution fMRI with representational similarity analysis to quantify the difference in distributed activity between clear and masked speech. We demonstrate that brain representations of spoken sentences are less affected by a competing sentence when they are spoken by a friend or partner than by someone unfamiliar—effectively, showing a cortical signal-to-noise ratio (SNR) enhancement for familiar voices. This effect correlated with the familiar-voice …

The Functional Connectivity Of The Auditory Cortex In Autism Spectrum Disorder, Katherine Wilson

Honors Theses

Disturbance of the auditory cortex in Autism Spectrum Disorder (ASD) is well known as well as its influence on hearing. Functional connectivity within the brain is also known to be affected by ASD. However, functional connectivity of the auditory cortex in ASD has yet to be studied. In this study, using resting-state functional magnetic resonance imaging data from the Autism Brain Imaging Data Exchange (ABIDE), functional connectivity of the auditory cortex was examined by comparing 68 individuals with ASD and 75 individuals with ASD. Four brain regions showed smaller functional connectivity to and from the auditory cortex; the occipital cortex, …

Musical Training Influences Auditory Temporal Processing, Saravanan Elangovan, Nicole Payne, Jacek Smurzynski, Marc A. Fagelson

Jacek Smurzynski

Background: A link between musical expertise and auditory temporal processing abilities was examined.

Material and methods: Trained musicians (n=13) and non-musicians (n=12) were tested on speech tasks (phonetic identification, speech recognition in noise) and non-speech tasks (temporal gap detection).

Results: Results indicated musicians had shorter between-channel gap detection thresholds and sharper phonetic identification functions, suggesting that perceptual reorganization following musical training assists basic temporal auditory processes.

Conclusions: In general, our results provide a conceptual advance in understanding how musical training influences speech processing, an ability which, when impaired, can affect speech and reading competency.

Musical Training Influences Auditory Temporal Processing, Saravanan Elangovan, Nicole Payne, Jacek Smurzynski, Marc A. Fagelson

Marc A. Fagelson

Background: A link between musical expertise and auditory temporal processing abilities was examined.

Material and methods: Trained musicians (n=13) and non-musicians (n=12) were tested on speech tasks (phonetic identification, speech recognition in noise) and non-speech tasks (temporal gap detection).

Results: Results indicated musicians had shorter between-channel gap detection thresholds and sharper phonetic identification functions, suggesting that perceptual reorganization following musical training assists basic temporal auditory processes.

Conclusions: In general, our results provide a conceptual advance in understanding how musical training influences speech processing, an ability which, when impaired, can affect speech and reading competency.

Musical Training Influences Auditory Temporal Processing, Saravanan Elangovan, Nicole Payne, Jacek Smurzynski, Marc A. Fagelson

Saravanan Elangovan

Background: A link between musical expertise and auditory temporal processing abilities was examined.

Material and methods: Trained musicians (n=13) and non-musicians (n=12) were tested on speech tasks (phonetic identification, speech recognition in noise) and non-speech tasks (temporal gap detection).

Results: Results indicated musicians had shorter between-channel gap detection thresholds and sharper phonetic identification functions, suggesting that perceptual reorganization following musical training assists basic temporal auditory processes.

Conclusions: In general, our results provide a conceptual advance in understanding how musical training influences speech processing, an ability which, when impaired, can affect speech and reading competency.

Musical Training Influences Auditory Temporal Processing, Saravanan Elangovan, Nicole Payne, Jacek Smurzynski, Marc A. Fagelson

ETSU Faculty Works

Background: A link between musical expertise and auditory temporal processing abilities was examined.

Material and methods: Trained musicians (n=13) and non-musicians (n=12) were tested on speech tasks (phonetic identification, speech recognition in noise) and non-speech tasks (temporal gap detection).

Results: Results indicated musicians had shorter between-channel gap detection thresholds and sharper phonetic identification functions, suggesting that perceptual reorganization following musical training assists basic temporal auditory processes.

Conclusions: In general, our results provide a conceptual advance in understanding how musical training influences speech processing, an ability which, when impaired, can affect speech and reading competency.

Neurophysiological Correlates Of The Critical Bandwidth In The Human Auditory System, Grace Ann Bentley

Theses and Dissertations

The critical bandwidth (CBW) is an auditory phenomenon that has been used to study various aspects of auditory processing, including auditory masking, complex tone processing, and loudness perception. Although the psychoacoustic aspects of the CBW have been well studied, the underlying neurophysiology of the CBW has not been as thoroughly examined. The current study examined the neurophysiology of the CBW in young adults, as well as loudness perception in response to the CBW. Auditory stimuli consisting of complex tones of varying bandwidths were presented to 12 individuals (6 male and 6 female, ages 18-26 years). Complex tones were presented around …