Worcester State University 1 article published in JoVE Neuroscience Direct Visualization of the Murine Dorsal Cochlear Nucleus for Optogenetic Stimulation of the Auditory Pathway Elliott D. Kozin*1, Keith N. Darrow*2, Ariel E. Hight*1, Ashton E. Lehmann1, Alyson B. Kaplan1, M. Christian Brown1, Daniel J. Lee1 1Department of Otology and Laryngology, Harvard Medical School, 2Department of Communication Sciences and Disorders, Worcester State University The goal of this protocol is to outline a surgical approach to provide direct access to the dorsal cochlear nucleus in a murine model.