Eric L. Bittman, biology

Professor, biology

Phone: 413-545-4344

Email: Contact Info elb@bio.umass.edu

Eric Bittman's laboratory studies the molecular and neural basis of endogenous daily (circadian) rhythms in mammals. It focuses upon the suprachiasmatic nucleus of the hypothalamus (SCN), a master pacemaker critical not only to general activity rhythms but also to the estrous cycle, the rhythmic secretion of many hormones, and seasonal breeding. The restriction of reproduction to a particular time of year depends upon the discrimination of daylength. The circadian system accomplishes this by SCN-regulated secretion of the hormone melatonin by the pineal gland, and detection of melatonin duration using highly specific cell membrane receptors in the brain.