Dr. Rybak is an Associate Professor, the Department of Psychiatry, Western University, Canada. He is practicing at the Parkwood Institute and is a researcher at the Lawson Health Research Institute. A significant part of his clinical, educational and research activities are related to Treatment Resistant Depression (TRD). Dr. Rybak is the first author of the Canadian Consensus on TRD and a principal investigator of two ongoing studies of TRD, he has expertise in transcranial magnetic stimulation (rTMS). He has also contributed to the field of Chronobiology of ADHD and Depression.