Speech frequency-following response in human auditory cortex is more than a simple tracking
| Autor: | Ning Guo, Yue Ding, Bo Hong, Dan Zhang, Wenjing Zhou, Xiaopeng Si, Yang Zhang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adult
Male medicine.medical_specialty Speech perception Adolescent Computer science Frequency band Cognitive Neuroscience Audiology Stimulus (physiology) Auditory cortex 050105 experimental psychology lcsh:RC321-571 03 medical and health sciences Young Adult 0302 clinical medicine Frequency-following response otorhinolaryngologic diseases medicine Humans Speech 0501 psychology and cognitive sciences Child Pitch Perception lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry Auditory Cortex Intracranial EEG Epilepsy 05 social sciences Electroencephalography Fundamental frequency Frequency following response Neurology Acoustic Stimulation Frequency limits Harmonic Evoked Potentials Auditory Speech Perception Missing fundamental Female 030217 neurology & neurosurgery |
| Zdroj: | NeuroImage, Vol 226, Iss, Pp 117545-(2021) |
| ISSN: | 1095-9572 |
| Popis: | The human auditory cortex is recently found to contribute to the frequency following response (FFR) and the cortical component has been shown to be more relevant to speech perception. However, it is not clear how cortical FFR may contribute to the processing of speech fundamental frequency (F0) and the dynamic pitch. Using intracranial EEG recordings, we observed a significant FFR at the fundamental frequency (F0) for both speech and speech-like harmonic complex stimuli in the human auditory cortex, even in the missing fundamental condition. Both the spectral amplitude and phase coherence of the cortical FFR showed a significant harmonic preference, and attenuated from the primary auditory cortex to the surrounding associative auditory cortex. The phase coherence of the speech FFR was found significantly higher than that of the harmonic complex stimuli, especially in the left hemisphere, showing a high timing fidelity of the cortical FFR in tracking dynamic F0 in speech. Spectrally, the frequency band of the cortical FFR was largely overlapped with the range of the human vocal pitch. Taken together, our study parsed the intrinsic properties of the cortical FFR and reveals a preference for speech-like sounds, supporting its potential role in processing speech intonation and lexical tones. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect