SleepViz is a simple Matlab graphical user interface for visualization of polysomnographic data.

3 plotting components :

• Polysomnographic data (EEG, EOG, EMG, ECG)
• Spectrogram (requires Matlab Signal Processing Toolbox)
• Hypnogram (*.txt / *.hyp)

Please see this tutorial on my website

Current version: 0.2

• added function to compute sleep statistics from hypnogram (Tools > Compute Sleep Stats)
• added function to apply a simple bandpass filter (Tools > Filter Signal)
• added function to perform an automatic detection of Rapid Eye Movements (REMs) (Tools > REMs Detection)

vers. 0.1

• added support for EDF format using edfread by Brett Shoelson
• added support for Elan file format
• added single-channel amplitude
• added support for hypnogram in Elan .hyp or .txt files

Example include EDF files from two different sources

• PhysioNet Sleep-EDF Database
• DREAMS Sleep Spindles Database
• Elan: Nap polysomnographic data from my PhD