TY - GEN AU - Ferraro,J S AU - Antonakos,J L AU - Hallam,J M TI - An improved method for precise control of light exposure at a known circadian time during an animal's subjective night SN - 0031-9384 PY - 1998///0521 KW - Animals KW - Circadian Rhythm KW - physiology KW - Cricetinae KW - Electronics KW - Male KW - Motor Activity KW - Photic Stimulation KW - instrumentation KW - Psychology, Experimental KW - Software N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S UR - https://doi.org/10.1016/s0031-9384(97)00521-0 ER -