Is it desirable for medical students to become more systematically familiar with the normal? In connection with the general course in pediatrics, given at the Yale University School of Medicine, I recently had opportunity to test the feasibility of demonstrating to junior students the developmental characteristics of normal infants. The present paper is a stenographic report of one session devoted to the clinical demonstration of two pairs of normal infants, respectively 4 and 6 months, and 6 and 9 months of age.
This session was followed by a clinical demonstration of mental deficiency in infant subjects. It was our purpose, in the comparative examinations, to clarify the nature of developmental retardation by a preliminary presentation of normal characteristics; and also to illustrate the principles of developmental diagnosis.
From the standpoint of developmental diagnosis we are primarily interested in all those forms of behavior, mediated by a nervous system, which are
GESELL A. A COMPARATIVE METHOD FOR DEMONSTRATION OF NORMAL DEVELOPMENT IN INFANCY. JAMA. 1926;86(17):1277–1281. doi:10.1001/jama.1926.02670430019008
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