Wearable Sensor Toolkit for Infant Motor Development

The purpose of this study is to develop and test a fully automated, wireless sensor-based toolkit for infants that can capture early indicators (0-3 months) of motor deficits during activities of daily life and track motor development over the course of one year. The investigators expect that the participating child will be in this research study for up to 12-24 months corrected-age depending on which group the participating child is recruited into. The main benefit of being in this study is to help monitor the participating child's motor development. The investigators will place up to 6 sensors on the participants body and head to observe the participants child's movement. Caregivers will also be trained to place the sensors. The sensors will send movement information wirelessly to an iPad or smartphone, using Bluetooth technology.

Inclusion Criteria: The study population comprises infants who are at risk of motor or other developmental delay. "At-risk" is defined as having been admitted to the NICU admission and qualifying for Early Childhood Clinic (NICU high-risk follow up clinic) or Early Intervention due to: * BW \