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postnatal - Postnatal Epigenesis of Behavior Unique...

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Postnatal Epigenesis of Behavior
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Unique Problems Faced by Altricial Neonates 1. Sensory immaturity stimuli available to adults not available to neonate 2. Motor immaturity ability to act on motivations is limited 3. Physiological immaturity motivational systems, regulatory systems 4. Morphological immaturity small size
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Difficulties in Assessing Behavioral Development Identification of eliciting stimuli Motivations different from those of adults Response definition
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Mechanisms of Behavioral Maturation Integration and individuation complex behaviors emerge when all component parts become functional, differentiation of gross behaviors Activation of existing circuitry circuitry present, not active under normal circumstances CNS maturation requisite circuitry not yet active Response competition behavioral dominance changes with age Morphological change behaviors physically not possible Permissive/supportive environment special conditions necessary to allow for behavioral expression New attractor states Changing value of control parameters in dynamical systems Physiological Maturation physiological development allows for new solutions to problems
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McGraw, M. (1939) Swimming behavior of the human infant.
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