New study reveals why babies kick, jerk and move soon after birth

Immediately after birth, babies start kicking, wiggling and moving. The purpose behind such movements, researchers say, is the ability to control muscles, movement and coordination that help develop the “sensorimotor system.”

A study from the University of Tokyo combined detailed motion capture of newborns and infants with musculoskeletal computer models, allowing researchers to analyze communication between muscles and senses throughout the body.

Based on random exploration of babies, researchers discovered patterns of muscle interaction.

“Our research focused on whole-body muscle activity and sensory input signals. By combining musculoskeletal models and neuroscientific methods, we were able to explore spontaneous, seemingly undefined tasks and purposes.” We found that movement contributes to coordinated sensorimotor development,” said the project. I am Hoshinori Kanazawa, an assistant professor at the University of Tokyo.

As part of the study, the team used motion capture technology to record the joint movements of 12 healthy newborns (less than 10 days old) and 10 infants (about 3 months old).

They used a musculoskeletal computer model of the whole-body infant scale in the next step to analyze sensory input signals and muscle activity in babies.

Finally, they used computer algorithms to analyze the spatiotemporal (both spatial and temporal) features of the interaction between input signals and muscle activity.

“We were surprised to find that during the infant’s spontaneous movements, the movements were ‘wandering’, pursuing different sensorimotor interactions. We named this phenomenon ‘sensorimotor wandering’. I did,” Kanazawa said.

“However, our results suggest that infants develop their own sensorimotor systems based on exploratory behavior and curiosity, so they are not just repeating the same behavior, they are repeating a variety of behaviors.” neural activity,” he added.

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The article above is published from Wire Source with minimal changes to headings and text.

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