“…This has also been widely demonstrated in studies of animals and infants who are capable of estimating temporal intervals despite a lack of temporal reasoning ability. For example, in classical temporal conditioning paradigms, infants automatically react (e.g., pupillary dilatation, heart rate deceleration) to the omission of an event presented at regular intervals (e.g., Brackbill & Fitzgerald, 1972;Colombo & Richman, 2002). Other studies using the standard habituation procedure have also observed infants' reactions to differences in the presentation duration of events (Brannon, Libertus, Meck, & Woldorff, 2008;Brannon, Roussel, Meck, & Woldorff, 2004;De Hevia, Izard, Coubart, Spelke, & Streri, 2014;VanMarle & Wynn, 2006).…”