Cardiovascular Responses to Psychosocial Stress Reflect Motivation State in Adults Born at Extremely Low Birth Weight oleh Karen J. Mathewson PhD, Riikka Pyhälä PhD, Petteri Hovi MD, PhD, Katri Räikkönen PhD, Ryan J. Van Lieshout MD, PhD, Michael H. Boyle PhD, Saroj Saigal MD, Katherine M. Morrison MD, Eero Kajantie MD, PhD, Louis A. Schmidt PhD