“…Aligning with NIMH Research Domain Criteria (RDoC; Sanislow et al, 2019), SMD can be viewed as an integral aspect of stress response physiology, providing an underlying dimension to join other categorical diagnostic entities formerly considered discrete. This supports work wherein SMD is expanded beyond neurodiverse populations, and considered an essential means of accessing evidence of autonomic dysregulation characteristic of various populations with vulnerable nervous systems, including individuals with prematurity, mental health diagnosis, or early adversity (Shonkoff et al, 2012;Paul-Ward and Lambdin-Pattavina, 2016;Pears et al, 2016;Andersen et al, 2018;Germain, 2018;Machingura et al, 2018;Brown et al, 2019;Mulkey and du Plessis, 2019).…”