The ketamine model of schizophrenia: EEG single trial data during an auditory choice reaction task

The dataset consists of single trial EEG data that was recorded from 24 participants during the performance of an auditory choice reaction task. Each participant completed the recording on separate days during the infusion of placebo (0-0) or sub-anesthetic ketamine (0-1).

Type of data:

EEG single trial ASCII data (64 channels, extended 10-20 system)

1000 Hz sampling rate

What is the question/hypothesis behind the dataset?

To test whether ketamine reduces the auditory evoked gamma response

Which paradigm has been used?

Cognitively demanding auditory choice reaction task (3 tones, 2 answers)

S1 (800 Hz) and S3 (1200 Hz) markers code for target tone presentation

S2 (1000 Hz) is the marker coding for the non-target tone

S101 (for S1) and S103 (for S 3) are the response markers 

Which methods have been applied so far to analyse the dataset?

Time-frequency analysis (focus on 40 Hz), phase locking factor, sLORETA source localization

The dataset is described in more detail in the following publication: https://doi.org/10.1016/j.neuroimage.2022.119004