Linkenkaer-Hansen, K., Nikulin, V. V., Palva, S., Ilmoniemi, R. J., & Palva, J. M. (2004). Prestimulus oscillations enhance psychophysical performance in humans. The Journal of Neuroscience, 24(45), 10186-10190. doi:10.1523/JNEUROSCI.2584-04.2004.