Using the movie camera to record and study the development of the infant and child was initially done by Gesell and the Yale group in the 1930. During the following 3 decades, many investigators, like Myrtle McGraw, Gajdusek, and others, provided a wealth of observational material in this field. However, the technical exigencies constrained them to a laboratory-type setting, or to such elaborate production facilities as to restrict the usefulness of this exceedingly valuable recording and research tool.

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