The study aims to develop a SmarToyGym where sensitized, wireless toys are strategically hung and placed within reach of infants to elicit toy-oriented body and arm/hand movements. Each toy will be equipped with sensors capable of measuring the infant's grasping actions such as squeezing, pinching, tilting, etc. A low-cost 3D motion capture system will be used to collect video data and the infants' reaching and body kinematics in response to the toys. A pressure mat will be used to measure postural changes to detect weight shifts, rolling, crawling and other movements away from the initial posture. By capitalizing on these wireless and low-cost technologies, it will permit the regular and non-invasive monitoring of infants, which can lead to detailed, non-obtrusive, quantitative evaluation of motor development. In this vein, the investigators also aim to conduct proof-of-concept testing of the SmarToyGym with atypical and typical developing infants. The investigators will include infants' ages 3 to 11 months who are categorized as high-risk or low-risk using the Bayley Infant Neurodevelopmental Screener.
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Center of Pressure, Path Length Per Second - No Toy (Birth Status)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Path Length Per Second - Elephant Toy (Birth Status)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Path Length Per Second - Orangutan Toy (Birth Status)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Path Length Per Second - Lion Toy (Birth Status)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Path Length Per Second - No Toy (Motor Control Outcome)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Path Length Per Second - Elephant Toy (Motor Control Outcome)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Path Length Per Second - Orangutan Toy (Motor Control Outcome)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Path Length Per Second - Lion Toy (Motor Control Outcome)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Standard Deviation (Y) - No Toy (Birth Status)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Standard Deviation (Y) - Elephant Toy (Birth Status)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Standard Deviation (Y) - Orangutan Toy (Birth Status)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Standard Deviation (Y) - Lion Toy (Birth Status)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Standard Deviation (Y) - No Toy (Motor Control Outcome)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Standard Deviation (Y) - Elephant Toy (Motor Control Outcome)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Standard Deviation (Y) - Orangutan Toy (Motor Control Outcome)
Timeframe: 1 session, about 1 hour in length
Center of Pressure, Standard Deviation (Y) - Lion Toy (Motor Control Outcome)
Timeframe: 1 session, about 1 hour in length
Toy Interaction (Elephant Toy) - Grasp/Touch/Kick/Mouth Time
Timeframe: 1 session, approximately 120 seconds during session 1 for the Elephant toy
Toy Interaction (Orangutan Toy) - Grasp/Touch/Kick/Mouth Time
Timeframe: 1 session, approximately 120 seconds during session 1 for the Orangutan toy
Toy Interaction (Lion Toy) - Grasp/Touch/Kick/Mouth Time
Timeframe: 1 session, approximately 120 seconds during session 1 for the Lion toy
Toy Interaction (Elephant Toy) - Gaze Time
Timeframe: 1 session, approximately 120 seconds during session 1 for the Elephant toy
Toy Interaction (Orangutan Toy) - Gaze Time
Timeframe: 1 session, approximately 120 seconds during session 1 for the Orangutan toy
Toy Interaction (Lion Toy) - Gaze Time
Timeframe: 1 session, approximately 120 seconds during session 1 for the Lion toy
Number of Occurrences of Elephant Toy Interactions
Timeframe: 1 session, approximately 120 seconds during session 1 for the Elephant toy
Number of Occurrences of Orangutan Toy Interactions
Timeframe: 1 session, approximately 120 seconds during session 1 for the Orangutan toy
Number of Occurrences of Lion Toy Interactions
Timeframe: 1 session, approximately 120 seconds during session 1 for the Lion toy