Oudiette_N1Data

Dream EEG and Mentation (DREAM) data set ---Data set information--- Common name: Oudiette_N1Data Full name: N/A Authors: Célia Lacaux, Thomas Andrillon, Isabelle Arnulf & Delphine Oudiette Location: The Paris Brain Institute (France) Year: 2021 Set ID: 2 Amendment: 0 Corresponding author ID: 10 Previous publications: N/A Correspondence: Nicolas Decat (E: [e-mail]) ---Metadata--- Key ID: 2 Date entered: 2022-06-10T12:44:18+00:00 Number of samples: 252 Number of subjects: 63 Proportion REM: 0% Proportion N1: 6% Proportion N2: 9% Proportion W: 85% Proportion experience: 87% Proportion no-experience: 7% Proportion healthy: 100% Provoked awakening: Yes Time of awakening: Day Form of response: Free Date approved: 2022-06-14T10:27:11+00:00 ---How to decode data files--- N/A --Treatment group codes-- N/A ---Experimental description--- Data was collected as part of a study investigating the role of the falling-asleep process on creative insight. A creativity task was completed prior to and following a 30-minute daytime nap, during which subjects (N=63, 18-35yo) were sitting on a reclining chair. Mental content was probed 4 times every 6 minutes. For each probe, subjects were asked to describe out loud what went through their mind prior to the alarm. --DREAM categorization procedure-- We classified participants' reports as: - Experience (E): something (i.e., thoughts, imagery) went through their mind at the probe. - No Experience (NE): nothing went through their mind at the probe. - Experience Without Recall (WR): something went through their mind at the probe but they could not recall any mental content. Conscious experiences (E) were further defined as hypnagogic if it was “fleeting, involuntary, spontaneous, perceptual, and bizarre”, else they were defined as "waking thoughts". Note: Mental content is currently in French. ---Technical details--- No artefacts Note: In all recordings, EOG and EMG signals were clipped at 100uV. --Data acquisition-- 3 EEG electrodes (C3, O1, Fp1) 2 EOG 1 chin EMG 256Hz sampling rate --Data preprocessing-- 0.1-40Hz unstopped EEG frequency band Reference to mastoid (A2) Data are originally in EDF => chunked with FASST toolbox to get only the N1 episode that precedes the awakening & dream report (new format: .mat + .dat)

梦境脑电图与心理活动（DREAM）数据集
---数据集信息---
通用名称：Oudiette_N1Data
全称：无
作者：塞莉亚·拉科（Célia Lacaux）、托马斯·安德里永（Thomas Andrillon）、伊莎贝尔·阿尔努夫（Isabelle Arnulf）、德尔菲娜·乌迪耶特（Delphine Oudiette）
所属机构：巴黎脑科学研究院（法国）
发布年份：2021年
数据集编号：2
修订版本：0
通讯作者编号：10
已发表关联研究：无
联系方式：尼古拉·德卡特（Nicolas Decat），邮箱：[e-mail]
---元数据---
元数据键编号：2
录入日期：2022年6月10日12时44分18秒（UTC+0）
样本量：252
受试人数：63
快速眼动睡眠（REM）占比：0%
N1期睡眠占比：6%
N2期睡眠占比：9%
清醒状态（W）占比：85%
有心理体验占比：87%
无心理体验占比：7%
健康受试者占比：100%
唤醒方式：诱发式唤醒
唤醒时段：日间
报告形式：自由描述
审核通过日期：2022年6月14日10时27分11秒（UTC+0）
---数据文件解码方式---
数据文件解码方式：无
---处理组编码---
处理组编码：无
---实验描述---
本数据集采集自一项探究入睡过程对创造性顿悟影响的研究。受试者（共63人，年龄18~35岁）在日间30分钟小睡前后分别完成一项创造性任务，小睡期间受试者端坐于躺椅之上。每6分钟对受试者的心理活动进行一次探查，共计4次；每次探查时，受试者需大声描述警报触发前脑海中浮现的内容。
---DREAM数据集分类流程---
我们将受试者的报告分为三类：
- 有心理体验（E）：探查时受试者脑海中出现了内容（如想法、意象）。
- 无心理体验（NE）：探查时受试者脑海中未出现任何内容。
- 有体验但无法回忆（WR）：探查时受试者脑海中出现了内容，但无法回忆起具体的心理活动。
有心理体验（E）可进一步分类：若体验具有“短暂、非自主、自发、感知性且怪异”的特征，则归类为催眠幻觉体验；其余则归类为“清醒时的想法”。
注：当前心理活动报告的语言为法语。
---技术细节---
无人工伪迹
注：所有记录中，眼电图（EOG）与肌电图（EMG）信号的幅值截断阈值为100微伏（uV）。
---数据采集---
3通道脑电图（EEG）电极：C3、O1、Fp1
2通道眼电图（EOG）
1通道颏肌肌电图（EMG）
采样率：256赫兹（Hz）
---数据预处理---
脑电图滤波频段：0.1~40Hz（无阻带滤波）
参考电极：乳突（A2）
原始数据格式为EDF，使用FASST工具箱进行分块处理，仅提取唤醒前及梦境报告对应的N1期睡眠片段，新格式为.mat与.dat。