Ryan Logan

Dr. Ryan Logan is Professor of Psychiatry and Behavioral Sciences and Neurobiology at UMass Chan Medical School, with affiliations in Neuroscience and Translational Science graduate programs. He received his PhD in Neuroscience from University of Maine.

His research program investigates neurobiological mechanisms of opioid use disorder, focusing on circadian rhythm disruptions, sex-specific transcriptional regulation, and neuroimmune interactions. Work integrates molecular analyses of postmortem human brains with rodent models of addiction.

Logan's lab examines how circadian transcription factors like NPAS2 regulate reward pathways and how chronic opioid exposure remodels neural circuits. Recent studies reveal striatal transcriptional signatures conserved across species and synaptic proteome alterations in key reward regions.