Arousal and Attention: Self-chosen Stimulation Optimizes Cortical Excitability and Minimizes Compensatory Effort.

Thomas Fischer Robert Langner Niels Birbaumer Burkhard Brocke Arousal and Attention: Self-chosen Stimulation Optimizes Cortical Excitability and Minimizes Compensatory Effort. 1443-1453 2008 20 J. Cognitive Neuroscience 8 http://dx.doi.org/10.1162/jocn.2008.20101 db/journals/jocn/jocn20.html#FischerLBB08