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Intraoperative cortical localization of music and language reveals signatures of structural complexity in posterior temporal cortex.


ABSTRACT: Language and music involve the productive combination of basic units into structures. It remains unclear whether brain regions sensitive to linguistic and musical structure are co-localized. We report an intraoperative awake craniotomy in which a left-hemispheric language-dominant professional musician underwent cortical stimulation mapping (CSM) and electrocorticography of music and language perception and production during repetition tasks. Musical sequences were melodic or amelodic, and differed in algorithmic compressibility (Lempel-Ziv complexity). Auditory recordings of sentences differed in syntactic complexity (single vs. multiple phrasal embeddings). CSM of posterior superior temporal gyrus (pSTG) disrupted music perception and production, along with speech production. pSTG and posterior middle temporal gyrus (pMTG) activated for language and music (broadband gamma; 70-150 Hz). pMTG activity was modulated by musical complexity, while pSTG activity was modulated by syntactic complexity. This points to shared resources for music and language comprehension, but distinct neural signatures for the processing of domain-specific structural features.

SUBMITTER: McCarty MJ 

PROVIDER: S-EPMC10362292 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature

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Intraoperative cortical localization of music and language reveals signatures of structural complexity in posterior temporal cortex.

McCarty Meredith J MJ   Murphy Elliot E   Scherschligt Xavier X   Woolnough Oscar O   Morse Cale W CW   Snyder Kathryn K   Mahon Bradford Z BZ   Tandon Nitin N  

iScience 20230628 7


Language and music involve the productive combination of basic units into structures. It remains unclear whether brain regions sensitive to linguistic and musical structure are co-localized. We report an intraoperative awake craniotomy in which a left-hemispheric language-dominant professional musician underwent cortical stimulation mapping (CSM) and electrocorticography of music and language perception and production during repetition tasks. Musical sequences were melodic or amelodic, and diffe  ...[more]

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