Speech prosody enhances the neural processing of syntax

Author(s)
Giulio Degano, Peter W. Donhauser, Laura Gwilliams, Paola Merlo, Narly Golestani
Abstract

Human language relies on hierarchically structured syntax to facilitate efficient and robust communication. The correct processing of syntactic information is essential for successful communication between speakers. As an abstract level of language, syntax has often been studied separately from the physical form of the speech signal, thus often masking the interactions that can promote better syntactic processing in the human brain. We analyzed a MEG dataset to investigate how acoustic cues, specifically prosody, interact with syntactic operations. We examined whether prosody enhances the cortical encoding of syntactic representations. We decoded left-sided dependencies directly from brain activity and evaluated possible modulations of the decoding by the presence of prosodic boundaries. Our findings demonstrate that prosodic boundary presence improves the representation of left-sided dependencies, indicating the facilitative role of prosodic cues in processing abstract linguistic features. This study gives neurobiological evidence for the boosting of syntactic processing via interaction with prosody.

Organisation(s)
Department of Behavioral and Cognitive Biology, Vienna Cognitive Science Hub
External organisation(s)
Ernst Strüngmann Institute for Neuroscience, Stanford University, Université de Genève
No. of pages
33
DOI
https://doi.org/10.1101/2023.07.03.547482
Publication date
07-2023
Austrian Fields of Science 2012
301401 Brain research, 602036 Neurolinguistics
Portal url
https://ucris.univie.ac.at/portal/en/publications/speech-prosody-enhances-the-neural-processing-of-syntax(ca839995-2347-40ba-a9f6-aa42d482111b).html