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[The glider. Postural kinetic behavior during the pre-locomotor period in infants]
Insights
Infant soaring movements, an opisthotonic posture, are a transitional stage in early development. This behavior, peaking between 4-7 months, involves rhythmic postural changes and leads to intentional movements.
Area of Science:
- Neuroscience
- Developmental Psychology
- Pediatrics
Context:
- Observational study of infant motor development using cinematographic recordings.
- Focuses on a specific motor pattern observed in infants aged 3-10 months.
- This behavior occurs when the infant is in a prone position.
Purpose:
- To describe and analyze the characteristics of infant soaring movements.
- To understand the transitional role of these movements in motor skill acquisition.
- To explore the evolutionary, individual, and emotional aspects of this behavior.
Summary:
- Soaring movements, characterized by an opisthotonic posture, are observed in infants from 3 to 10 months.
- This kinetic activity represents a transitional stage towards intentional propulsive movements.
- The behavior is particularly pronounced and rhythmic between 4 and 7 months, featuring an "aerial" attitude.
Impact:
- Contributes to understanding neuro-psychological and tonico-postural evolution in infants.
- Highlights the interplay between passive and active movements, constraint, and pleasure in infant development.
- Provides insights into the developmental trajectory of balance acquisition and alternating postures.
Abstract:
Soaring movements-in an opisthotonic posture-which appear between 3 and 10 months when the infant is in a prone position, have been observed with cinematographic recordings. This is a postural and kinetic activity which takes place during the first year's development; i is a transitional stage leading to intentional propulsive movements. This activity may become a repetitive one for some children, especially between 4 and 7 months; at this peak period, it takes on an unusual aspect, not only because of the "aerial" attitude but also because of the rhythmicity of the postural changes which characterize it. This behavior has been studied in its evolutionary forms, its individual characteristics, and its emotional expressions. Hovering movements are localized in the neuro-psychological evolution of the infant (tonico-postural evolution, acquisition of balance in a prone position, alternating postures, propulsive movements). The conditions which set off and quieten this activity explain the dynamics of its functioning between movements to which the baby is submitted and deliberate ones, between constraint and pleasure.
