Department of Psychology and Helen Wills Neuroscience Institute, University of California, Berkeley
Correspondence: Matthew P. Walker, Department of Psychology and the Helen Wills Neuroscience Institute, Tolman Hall 3331, University of California, Berkeley, CA, 94720-1650. Email:[email protected]
Supported, in part, by National Institutes of Health grant nos. MH069935, MH48832, MH65292, and MH67754, and by the American Academy of Sleep Medicine.
Original manuscript received 17 September 2007, accepted for publication subject to revision 5 November 2007; revised manuscript received 12 November 2007.
doi: 10.1080/10673220802432517
