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Infant Development

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This study is based on Dr. Heidi Als' Synactive Theory of Infant Development which provides a framework for understanding the behaviour of premature infants. The infants behavior are grouped into 5 subsets which are:
A. Motor - where the infants movement, posture, activity, and motor tone are observed. Signs of stresses are generalized hypotonia, frantic flailing movements, finger splaying, hyperextension of extremities.
B. Autonomic - which is the basic physiological functioning of the body necessary for survival. Early indicators are skin color, tremors, heat rate, and respiratory rate. Signs of stresses are color changes, changes in vital signs, visceral responses, sneezing, and yawning.
C. States - this is a way of categorizing the level of central nervous system arousal. Signs of stresses are diffused …show more content…

If an inappropriate stimulus persists the infant will no longer be able to maintain a stable balance of subsystems. If properly timed and appropriate in complexity and intensity, stimulation will cause the infant to search and move toward the stimuli, while maintaining him / herself in a stable balance.
In healthy full term infants these systems generally work smoothly supporting and promoting each other. In the preterm infant these systems are not fully developed and ready to function. Therefore, the preterm infant's behaviors are generally characterized by disorganization and signs of stress. The preterm infant is more dependent, than the full term infant, on its environment to help support and maintain balanced equilibrium.
In relation to the study, the Recorded Lullaby will be perceived as the appropriate stimuli that will help a premature infant maintain a stable balance of subsystems. However, in the study we focus on the Autonomic - Vital Signs and State - Sleep

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