This research was supported by a grant from the National Science Foundation (BCS‐1121096) to RSB. The authors would like to thank the infants and parents who participated in this study and Dr. Atkinson and Dr. Sauter for providing the video and audio stimuli that were used in this study. Portions of these data were submitted by the first author in partial fulfillment of the Ph.D. degree at the University of Kentucky. Nicole Zieber is now at the University of South Carolina.