Initially trained to design and run human psychophysical experiments at the University of Minnesota, Jeffrey decided to apply this knowledge to the design of tasks for ferrets, during which they could simultaneously record the ferrets' brain activities using functional ultrasound imaging and linear electrode arrays. Jeffrey received their M1 in Cognitive Science and M2 in Neurocience at ENS as a student from the sélection internationale, and has been pursuing a PhD in neuroscience with Yves Boubenec and Shihab Shamma at the Laboratoire des Systèmes Perceptifs (LSP).