#3562. The effects of a simulated fMRI environment on voice intensity in individuals with Parkinsons disease hypophonia and older healthy adults

October 2026publication date
Proposal available till 31-05-2025
4 total number of authors per manuscript0 $

The title of the journal is available only for the authors who have already paid for
Journal’s subject area:
Linguistics and Language;
LPN and LVN;
Speech and Hearing;
Experimental and Cognitive Psychology;
Cognitive Neuroscience;
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Abstract:
Functional magnetic resonance imaging (fMRI) has promise for understanding neural mechanisms of neurogenic speech and voice disorders. However, performing vocal tasks within the fMRI environment may not always be analogous to performance outside of the scanner. We used a linear mixed-effects (multi-level) model to evaluate the contributions of group and recording environment to vowel intensity. A group by condition interaction also indicated that the addition of scanner noise had a greater impact on the group. A second analysis conducted within the group showed no effects of medication state on vowel intensity. Our findings demonstrate that performance on voice production tasks is altered for roups when translated into the fMRI environment, even in the absence of acoustic scanner noise.
Keywords:
Body position; fMRI; Hypophonia; Lombard effect; Parkinsons disease; Voice; Voice intensity

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