alpha rhythm and mu rhythm

For example, Wolpaw and his associates ([Wolpaw et al, Wolpaw and McFarland, 1994, McFarland et al and Kuebler et al]) have trained operators to control the magnitude of their mu rhythm in order to move a cursor. The mu rhythm is brain activity in the 8–12 Hz range recorded over the primary sensory and motor cortexes, which is not affected by opening one's eyes ( [Wolpaw and McFarland, 1994]). This should not be confused with the alpha rhythm, which is 8–12 Hz activity typically recorded over parietal and occipital sites that is affected by opening one's eyes.

Keith S. Jones, Matthew Middendorf, Grant R. McMillan, Gloria Calhoun and Joel Warm, Comparing mouse and steady-state visual evoked response-based control, Interacting with Computers, Volume 15, Issue 4, 1 August 2003, Pages 603-621.
(http://www.sciencedirect.com/science/article/B6V0D-492W04W-1/2/9e7d4ffb69771b4fc28d25f1ff2c62bc)
Keywords: Alternative control; EEG-based control; SSVER-based control; Input devices