The Disrupted Symphony of Speech: A Lesion Network Mapping Analysis of Apraxia of Speech

Authors

Payton Harris, Brigham Young University - ProvoFollow
Harrison Moore, Brigham Young University - ProvoFollow
Milija Grotenhuis, Brigham Young University - ProvoFollow
Jared Nielsen, Brigham Young University - ProvoFollow
Michael A. Ferguson, Harvard Medical SchoolFollow

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Keywords

Lesion network, lesion network mapping, apraxia of speech, speech apraxia, speech disorder, stroke, aos, network mapping

Abstract

Apraxia of Speech (AOS) is a motor speech disorder that causes difficulty planning and coordinating the movements necessary for speech. This study uses lesion network mapping to identify the neural connections of AOS by tracing lesion data and analyzing their functional connectivity patterns. Our data indicates strong connectivity between the left primary motor cortex and right premotor cortex. The findings of the left primary motor cortex differ from most AOS research but still correlate with regional functions found in healthy populations. However, results related to the right motor cortex were much less expected, and suggested a larger, understudied role in the disorder. These results gave insights into AOS mechanisms, and will better inform future research.

BYU ScholarsArchive Citation

Harris, Payton; Moore, Harrison; Grotenhuis, Milija; Nielsen, Jared; and Ferguson, Michael A., "The Disrupted Symphony of Speech: A Lesion Network Mapping Analysis of Apraxia of Speech" (2025). FHSS Mentored Research Conference. 364.
https://scholarsarchive.byu.edu/fhssconference_studentpub/364

Document Type

Poster

Publication Date

2025-04-10

Language

English

College

Family, Home, and Social Sciences

Department

Psychology

University Standing at Time of Publication

Senior

Copyright Use Information

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