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The pace of prosodic phrasing couples the listener's cortex to the reader's voice
- Source :
- Vrije Universiteit Brussel, Human brain mapping: a journal devoted to functional neuroanatomy and neuroimaging, Hum Brain Mapp
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Abstract
- We studied online coupling between a reader's voice and a listener's cortical activity using a novel, ecologically valid continuous listening paradigm. Whole‐scalp magnetoencephalographic (MEG) signals were recorded from 10 right‐handed, native French‐speaking listeners in four conditions: a female (Exp1f) and a male (Exp1m) reading the same text in French; a male reading a text in Finnish (Exp 2), a language incomprehensible for the subjects, and a male humming Exp1 text (Exp 3). The fundamental frequency (f0) of the reader's voice was recorded with an accelerometer attached to the throat, and coherence was computed between f0 time‐course and listener's MEG. Similar levels of right‐hemisphere‐predominant coherence were found at ˜0.5 Hz in Exps 1–3. Dynamic imaging of coherent sources revealed that the most coherent brain regions were located in the right posterior superior temporal sulcus (pSTS) and posterior superior temporal gyrus (pSTG) in Exps 1–2 and in the right supratemporal auditory cortex in Exp 3. Comparison between speech rhythm and phrasing suggested a connection of the observed coherence to pauses at the sentence level both in the spoken and hummed text. These results demonstrate significant coupling at ∼0.5 Hz between reader's voice and listener's cortical signals during listening to natural continuous voice. The observed coupling suggests that voice envelope fluctuations, due to prosodic rhythmicity at the phrasal and sentence levels, are reflected in the listener's cortex as rhythmicity of about 2‐s cycles. The predominance of the coherence in the right pSTS and pSTG suggests hemispherical asymmetry in processing of speech sounds at subsentence time scales. Hum Brain Mapp, 2013. © 2012 Wiley Periodicals, Inc.
- Subjects :
- Male
magnetoencephalography
Audiology
Functional Laterality
Superior temporal gyrus
0302 clinical medicine
Image Processing, Computer-Assisted
Research Articles
Language
speech processing
Sex Characteristics
ta214
Radiological and Ultrasound Technology
medicine.diagnostic_test
05 social sciences
Superior temporal sulcus
Magnetic Resonance Imaging
Temporal Lobe
Biomechanical Phenomena
Neurology
superior temporal gyrus
Data Interpretation, Statistical
Auditory Perception
Speech Perception
Female
Anatomy
Psychology
superior temporal sulcus
Algorithms
Adult
temporal integration window
medicine.medical_specialty
Speech perception
ta221
Auditory cortex
Speech and language
050105 experimental psychology
03 medical and health sciences
Young Adult
medicine
Humans
prosody
sentence
0501 psychology and cognitive sciences
Radiology, Nuclear Medicine and imaging
Active listening
Prosody
ta218
Communication
ta114
business.industry
Magnetoencephalography
Speech processing
coherence
Reading
Voice
Neurology (clinical)
Human medicine
Nerve Net
business
030217 neurology & neurosurgery
Music
Subjects
Details
- ISSN :
- 10659471
- Database :
- OpenAIRE
- Journal :
- Vrije Universiteit Brussel, Human brain mapping: a journal devoted to functional neuroanatomy and neuroimaging, Hum Brain Mapp
- Accession number :
- edsair.doi.dedup.....60a4882bf82508d8e45111ffbaee0764