Open Access. Powered by Scholars. Published by Universities.®
University of Nebraska - Lincoln
Department of Special Education and Communication Disorders: Faculty Publications
Articles 1 - 1 of 1
Full-Text Articles in Entire DC Network
Spontaneous Facial Motility In Infancy: A 3d Kinematic Analysis, Jordan R. Green, Erin M. Wilson
Spontaneous Facial Motility In Infancy: A 3d Kinematic Analysis, Jordan R. Green, Erin M. Wilson
Department of Special Education and Communication Disorders: Faculty Publications
Early spontaneous orofacial movements have rarely been studied experimentally, though the motor experiences gained from these behaviors may influence the development of motor skills emerging for speech. This investigation quantitatively describes developmental changes in silent, spontaneous lip and jaw movements from 1 to 12 months of age using optically based 3D motion capture technology. Twenty-nine typically developing infants at five ages (1, 5, 7, 9, and 12 months) were studied cross-sectionally. Infants exhibited spontaneous facial movements at all ages studied. Several age-related changes were detected in lip and jaw kinematics: the occurrence of spontaneous movements increased, movement speed increased, the …