Trainee Profile

William David Todd, PhD

Research Fellow in Neurology, Harvard Medical School
Postdoctoral Research Fellow, Department of Neurology, Beth Israel Deaconess Medical Center

See publications


Beth Israel Deaconess Medical Center, Neurology/CLS-717
330 Brookline Avenue
Boston, MA 02215

Inter-office Mail Address


Phone 617-735-3247


Society Memberships

Society for Neuroscience,
Sleep Research Society,
International Society for Developmental Psychobiology

Research Interests

I am interested in how neural areas receiving output from the suprachiasmatic nucleus of the hypothalamus (the circadian “clock” of the mammalian brain) differentially contribute to daily rhythms of sleep and wakefulness, locomotor activity, and body temperature.
Building on my doctoral work, I am also interested in how differences in this circuitry may account for phenotypic differences seen across development and between species.


Selected Publications

Todd WD, Gall AJ, Weiner JA, Blumberg MS. Distinct retinohypothalamic innervation patterns predict the developmental emergence of species-typical circadian phase preference in nocturnal Norway rats and diurnal Nile grass rats.
J Comp Neurol. 2012 Oct  1;520(14):3277-92. [PMID: 22431036]

Campi KL, Collins CE, Todd WD, Kaas J, Krubitzer L. Comparison of area 17 cellular  composition in laboratory and wild-caught rats including diurnal and nocturnal species.
Brain Behav Evol. 2011;77(2):116-30. [PMID: 21525748]

Todd WD, Gibson JL, Shaw CS, Blumberg MS. Brainstem and hypothalamic regulation of sleep pressure and rebound in newborn rats.
Behav Neurosci. 2010 Feb;124(1):69-78. [PMID: 20141281]

Gall AJ, Todd WD, Ray B, Coleman CM, Blumberg MS. The development of day-night differences in sleep and wakefulness in norway rats and the effect of bilateral enucleation.
J Biol Rhythms. 2008 Jun;23(3):232-41. [PMID: 18487415]

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