<a href="//commons.wikimedia.org/wiki/Electroencephalogram" title="Electroencephalogram">EEGs</a> probes during a fatigue study.
NASA Ames Research Center - Human Systems Integration Division
2002-05-23
<a href="//commons.wikimedia.org/wiki/File:Human_fatigue_study.jpg" title="File:Human fatigue study.jpg">File:Human fatigue study.jpg</a>