Emotion assessment using the NIH Toolbox.

John M. Salsman^*, Zeeshan Butt, Paul A. Pilkonis, Jill M. Cyranowski, Nicholas Zill, Hugh C. Hendrie, Mary Jo Kupst, Morgen A R Kelly, Rita K. Bode, Seung W. Choi, Jin Shei Lai, James W. Griffith, Catherine M. Stoney, Pim Brouwers, Sarah S. Knox, David Cella