About eeg-1
Summary.
Human scalp EEG collected using a 64 + 6 channel BioSemi ActiveTwo amplifier with Ag-AgCl pin-type active electrodes mounted on an elastic cap according to the extended 10-20 system (BioSemi, Amsterdam, Netherlands), sampled at 512 Hz. This dataset included individual EEG data for 24 neurotypical subjects. Note these 24 subjects contain data in every thought condition (as described below). Derived (preprocessed) EEG data and analysis scripts are included.
Stimuli, behavior, and conditions of the participant: Attention task with experience sampling. This task presented left or right pointing arrows in each trial, and required participants to press the left and right arrow keys on the keyboard when they saw left and right arrows respectively. Each stimulus was presented for 2000ms, with a randomly jittered interstimulus interval between 200 ms and 800 ms during which a fixation cross was presented. The task consisted of 840 trials. Throughout the task, thought probes were presented at pseudo-random intervals, in which participants answered several questions about their thoughts occurring within the last 10-15 seconds preceding the probe. In particular, participants were asked to categorize their thoughts by responding on a 7-point Likert scale for the following questions: 1) Were your thoughts related to the task?, 2) Were your thoughts freely moving?, 3) Were your thoughts deliberately constrained?, and 4) Were your thoughts automatically constrained?
Results are described in:
Kam, J.W.Y., Irving, Z.C., Mills, C., Patel, S., Gopnik, A., Knight, R.T. (2020). Distinct electrophysiological signatures of task-unrelated and dynamic thoughts. Proceedings of the National Academy of Sciences.
Format of the data.
The data is stored in matlab .mat format. Details of the formats are provided in the data description document, linked to at the bottom of this page. Total size of the data is about 20 GB.
How to download the data.
The data can be downloaded from figshare at:
https://doi.org/10.6084/m9.figshare.c.5253255.v1
Getting help using the data.
You can get help with the data set by posting any questions on the forum for using data sets
How to cite the data
If you wish to publish any work using this dataset, please consult the lead researcher Julia Kam ([email protected]) and cite both the publication above (Kam et. al, 2020) and the data description using the following:
Kam, Julia (2020); 64-channel human scalp EEG from 24 subjects examining spontaneous thought using experience sampling. CRCNS.org
https://doi.org/10.6080/K0N8780K
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