The Sommer Laboratory at Duke University studies circuits for cognition. Using a variety of biomedical engineering and neurophysiological techniques, we examine information processing in the primate brain. Ongoing projects include the rational design of TMS and other forms of neurostimulation, the neural basis of metacognition and decision-making, the brain's circuits for timing, and the coordination of perception and action. The lab is based in the Biomedical Engineering Department with close ties to the Neurobiology Department and Center for Cognitive Neuroscience.