Single electrode EEG sleep data for analysis

Below is a link to a .zip file (4M) with a night's worth of EEG sleep data. The electrodes were connected to the side of the forehead 2cm above outer side of eyebrow, and the contralateral mastoid (behind the ear).

Click here to download the .zip data file

The zip file contains 94 files with raw data encoded in hex digits. Each file contains approximately 5 minutes of data. To convert the files into a useful format, you can download the following matlab routines. (You will need to modify them to use the correct filepath where you have stored the unzipped data).

• readDataFile.m converts the data in one file into a long matlab vector called 'data'.
• classificationSheet.m generates a nice classification sheet you may want to use to do sleep stage classification with.
• displayNight.m will display the data in a format similar to that used by sleep technologists. If you uncomment the 'print' and 'landscape' commands before the pause command it will print out everything (approx 50 pages).

Alex and Gabriel should have the 'ground truth' classification provided by the chief sleep technologist at the Huntington Hospital Sleep Disorder Lab. If you have questions/problems using the data or matlab files, contact me at the address below and I'll try to help. Good luck recognizing sleep stages!!!