Dataset Open Access

EEG Data for: "Cortical oscillations and entrainment in speech processing during working memory load"

Hjortkjær, Jens; Märcher-Rørsted, Jonatan; Fuglsang, Søren Asp; Dau, Torsten

This repository contains EEG and audio data used and described in:

Hjortkjær, J, Märcher-Rørsted, J, Fuglsang, SA, Dau, T (2018). Cortical oscillations and entrainment in speech processing during working memory load. European Journal of Neuroscience. doi:10.1111/ejn.13855

Please cite this article when using the data


The MAT-files contain the aligned EEG and audio data for each subject (N=22). The envelopes of the speech audio (without noise) have been extracted as described in the paper. Each file (data_N.mat) contains a Matlab struct in the format of the Fieldtrip toolbox containing the following fields:


data.trial:           EEG and audio data for all 40 trials [channels x timepoints]

  • channels 1-64: scalp EEG
  • channel 65: left mastoid electrode
  • channel 66: right mastoid electrode
  • channel 67: horizontal EOG
  • channel 68: vertical EOG for left eye
  • channel 69: vertical EOG for right eye
  • channel 70: audio envelopes

data.trialinfo:     Experimental condition in each trial

  • 1 = low noise, 1-back
  • 2 = low noise, 2-back
  • 3 = high noise, 1-back
  • 4 = high noise, 2-back

data.time:          Sample indices for each trial in seconds

data.label:         Name of each channel in data.trial

data.fsample:    EEG/audio sampling rate in Hz (128)

Files (3.2 GB)
Name Size
3.2 GB Download
All versions This version
Views 605605
Downloads 1,1851,185
Data volume 3.8 TB3.8 TB
Unique views 569569
Unique downloads 210210


Cite as