Nature Research, Nature Neuroscience, 8(9), p. 985-986, 2006
DOI: 10.1038/nn0806-985
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The suprachiasmatic nucleus (SCN) controls circadian behavior, and neurons in the SCN are intrinsic oscillators. Meredith et al. now identify the BK potassium channel as a key modulator of spontaneous firing of the SCN.