Neural tracking of syllabic and phonemic time scale

Dynamical theories of speech processing propose that the auditory cortex parses acoustic information in parallel at the syllabic and phonemic time scales. A paradigm was developed to independently manipulate both linguistic time scales, and intracranial recordings were acquired from eleven epileptic patients listening to French sentences. Our results indicate that (i) syllabic and phonemic time scales are both reflected in the acoustic spectral flux; (ii) during comprehension, the auditory cortex tracks the syllabic time scale in the theta range, while neural activity in the alpha-beta range phase locks to the phonemic time scale; (iii) these neural dynamics occur simultaneously and share a joint spatial location; (iv) the spectral flux embeds two time scales —in the theta and low-beta ranges— across 17 natural languages. These findings help understand how the human brain extracts acoustic information from the continuous speech signal at multiple time scales simultaneously, a prerequisi..., The dataset contains intracranial data stereotaxic electro-encephalography (sEEG) from 11 epileptic patients. Data was acquired at La Timone Hospital in Marseille.
Participants
Stereotactic Electroencephalography (sEEG) recordings were obtained from 11 patients (5 women, mean age 32,8 years, range [18-53]) with refractory epilepsy using intracerebral electrodes implanted as part of the standard presurgical evaluation process (Table S1). Electrode placements were based solely on clinical requirements. All patients were French native speakers. All patients gave informed consent, and the experiment reported here was approved by the Institutional Review board of the French Institute of Health (IRB00003888).  
Audio features extraction
We extracted from the auditory stimuli 10 unidimensional auditory features using the open-source Python library Surfboard.
Spectral flux is a measure of how quickly the power spectrum(opens in new window) of a signal(opens in new window) is changing, calculate..., , # The human auditory cortex concurrently tracks syllabic and phonemic time scales via acoustic spectral flux.

Jérémy Giroud, Agnès Trébuchon, Manuel Mercier , Matthew H. Davis , Benjamin Morillon

MRC Cognition and Brain Sciences Unit, University of Cambridge, UK

Aix Marseille Université, INSERM, INS, Institut de Neurosciences des Systèmes, Marseille, France

APHM, Clinical Neurophysiology, Timone Hospital, Marseille, France

corresponding author: [[e-mail]](mailto:[e-mail]) ; [[e-mail]](mailto:[e-mail])

[https://doi.org/10.5061/dryad.t4b8gtj9r](https://doi.org/10.5061/dryad.t4b8gtj9r)

## Description of the data and file structure

This dataset contains data to reproduce the figures in the future manuscript untitled \"The human auditory cortex concurrently tracks syllabic and phonemic time scales via acoustic spectral flux.\"

The dataset contains the following folders that relate to the different analyses performed in the manuscr...

语音处理动力学理论提出，人类听觉皮层会在音节与音素时间尺度上并行解析听觉信息。本研究开发了一种可独立操控两类语言时间尺度的实验范式，并对11名聆听法语句子的癫痫患者开展颅内脑电记录。研究结果显示：（1）音节与音素时间尺度均反映在听觉频谱通量（acoustic spectral flux）中；（2）在语言理解过程中，听觉皮层会追踪θ频段下的音节时间尺度，而α-β频段的神经活动会与音素时间尺度形成相位锁定；（3）上述神经动态同步发生且共享共同的空间定位；（4）频谱通量在17种自然语言中均嵌入了θ频段与低β频段对应的两类时间尺度。本研究结果有助于阐释人类大脑如何同时在多个时间尺度上从连续语音信号中提取听觉信息，这是……（原文存在截断）。本数据集包含11名癫痫患者的立体定向脑电图（stereotaxic electro-encephalography, sEEG）颅内脑电数据，数据采集于马赛拉蒂莫内医院（La Timone Hospital）。

### 研究对象
本研究通过颅内电极采集了11名难治性癫痫患者的立体定向脑电图（sEEG）记录，其中女性5名，平均年龄32.8岁，年龄区间为18~53岁。颅内电极植入为患者标准术前评估流程的一部分（详见补充表S1），电极植入位置仅基于临床需求确定。所有受试者均为法语母语者，且均签署了知情同意书；本研究已通过法国健康研究院伦理审查委员会（Institutional Review Board of the French Institute of Health, IRB00003888）的审批。

### 音频特征提取
本研究使用开源Python库Surfboard从听觉刺激材料中提取了10个单维听觉特征。频谱通量（Spectral flux）是衡量信号功率谱（power spectrum）变化速率的指标，其计算方式为……（原文存在截断）。

# 人类听觉皮层通过听觉频谱通量同步追踪音节与音素时间尺度
杰雷米·吉鲁（Jérémy Giroud）、阿涅丝·特雷比雄（Agnès Trébuchon）、曼努埃尔·梅尔西耶（Manuel Mercier）、马修·H·戴维斯（Matthew H. Davis）、本杰明·莫里永（Benjamin Morillon）
英国剑桥大学MRC认知与脑科学研究所
艾克斯马赛大学、法国国家健康与医学研究院（INSERM）、系统神经科学研究所，马赛，法国
APHM临床神经生理学科，拉蒂莫内医院，马赛，法国
通讯作者：[e-mail]；[e-mail]
DOI: https://doi.org/10.5061/dryad.t4b8gtj9r

## 数据与文件结构说明
本数据集包含用于复现未来未命名手稿《人类听觉皮层通过听觉频谱通量同步追踪音节与音素时间尺度》中所有图表的相关数据。数据集包含以下与手稿中各项分析对应的文件夹……（原文存在截断）