Dr. Thesen is an Assistant Professor in the Department of Neurology and Comprehensive Epilepsy Center at New York University. He is also a current member of the Multimodal Imaging Laboratory at the University of California at San Diego where he received postdoctoral training after completing his doctoral degree at Oxford University.

Dr. Thesen co-directs the Cognitive Neurophysiology Research Group at NYU School of Medicine. The group has a special emphasis on cognitive and translational research: moving state-of-the-art brain imaging techniques from the laboratory into the clinical practice, and at the same time using the clinical environment to generate novel hypotheses about brain function that can be tested in the laboratory. The group is also heavily involved in the investigation of basic neuroscience questions dealing with sensory and cognitive processing. In order to gain a better understanding of how the brain accomplishes these tasks, the laboratory takes a multimodal approach by using a variety of behavioral and neuroimaging methods, such as fMRI , MEG , intra-cranial EEG and psychophysics.