Oudiette_N1Data

Dream EEG and Mentation (DREAM) data set <br> <br> ---Data set information--- <br> Common name: Oudiette_N1Data Full name: N/A Authors: Célia Lacaux, Thomas Andrillon, Isabelle Arnulf &amp; Delphine Oudiette Location: The Paris Brain Institute (France) Year: 2021 Set ID: 2 Amendment: 0 Corresponding author ID: 10 <br> Previous publications: N/A <br> Correspondence: Nicolas Decat (E: [e-mail]) <br> <br> ---Metadata--- <br> 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 <br> <br> ---How to decode data files--- <br> N/A <br> --Treatment group codes-- <br> N/A <br> <br> ---Experimental description--- <br> 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. <br> --DREAM categorization procedure-- <br> 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. <br> 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. <br> <br> ---Technical details--- <br> No artefacts Note: In all recordings, EOG and EMG signals were clipped at 100uV. <br> --Data acquisition-- <br> 3 EEG electrodes (C3, O1, Fp1) 2 EOG 1 chin EMG 256Hz sampling rate <br> --Data preprocessing-- <br> 0.1-40Hz unstopped EEG frequency band Reference to mastoid (A2) Data are originally in EDF =&gt; chunked with FASST toolbox to get only the N1 episode that precedes the awakening &amp; dream report (new format: .mat + .dat) <br>