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motility - Prenatal Development of Behavior How and where...

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Prenatal Development of Behavior
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How and where is embryonic behavior first produced? Is it myogenic? or… Is it neurogenic? What part(s) of the body move first?
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Functions of Embryonic and Fetal Behavior Necessary for normal anatomical and physiological development Serves adaptive functions as a behavior Serves as practice for future behavior Is an epiphenomenon of no particular importance
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Coghill’s View of Behavioral Development Earliest movements are spontaneous rather than elicited From the beginning, movements are “mass actions” “Mass actions” become “individuated” into more localized and discrete movements
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Summary 1. The behaviour pattern develops in a regular order of sequence of movements which is consistent with the order of development of the nervous system and its parts. 2. In a relatively precise manner physiological processes follow the order of their embryological development in the functions of aquatic and terrestrial locomotion and feeding. 3. Behavior develops from the beginning through the progressive expansion of a perfectly integrated total pattern and the individuation within it of partial patterns which acquire various degrees of discreteness.
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Windle’s View of Behavioral Development First movements are simple reflexes More complex behaviors emerge as local responses become integrated with each other
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