Spectrotemporal cues and attention jointly modulate fMRI network topology for sentence and melody perception
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fMRI study of speech and melody perception and network topology.
It studies neural processing of speech and music using fMRI.
fMRI network study of speech and music perception is cognitive neuroscience.
Abstract
Speech and music are two fundamental modes of human communication. Lateralisation of key processes underlying their perception has been related both to the distinct sensitivity to low-level spectrotemporal acoustic features and to top-down attention. However, the interplay between bottom-up and top-down processes needs to be clarified. In the present study, we investigated the contribution of acoustics and attention to melodies or sentences to lateralisation in fMRI functional network topology. We used sung speech stimuli selectively filtered in temporal or spectral modulation domains with crossed and balanced verbal and melodic content. Perception of speech decreased with degradation of temporal information, whereas perception of melodies decreased with spectral degradation. Applying graph theoretical metrics on fMRI connectivity matrices, we found that local clustering, reflecting functional specialisation, linearly increased when spectral or temporal cues crucial for the task goal were incrementally degraded. These effects occurred in a bilateral fronto-temporo-parietal network for processing temporally degraded sentences and in right auditory regions for processing spectrally degraded melodies. In contrast, global topology remained stable across conditions. These findings suggest that lateralisation for speech and music partially depends on an interplay of acoustic cues and task goals under increased attentional demands.
Stored with the screening record, where it is evidence for the labels above.
The record
- Venue
- Scientific Reports
- Topic
- Neuroscience and Music Perception
- Field
- Neuroscience
- Canadian institutions
- McGill UniversityInternational Laboratory for Brain, Music and Sound ResearchCentre for Research on Brain Language and MusicUniversité LavalMontreal Neurological Institute and Hospital
- Funders
- Fonds de Recherche du Québec - SantéCanadian Institutes of Health ResearchUniversità degli Studi di PadovaUniversität WienAustrian Science FundAgence Nationale de la RechercheNatural Sciences and Engineering Research Council of CanadaFondation Brain CanadaCanadian Institute for Advanced ResearchAix-Marseille Université
- Keywords
- MelodyPerceptionSpeech perceptionSentenceAuditory perceptionSpeech recognitionComputer scienceTask (project management)Cognitive psychologyPsychologyNeuroscienceArtificial intelligence
- Has abstract in OpenAlex
- yes