Ideas of 5-13-years-old children concerning some aspects of man's psyche (sensation, perception, speech, causes of moral behavior, etc.) have been considered. It is shown that the "anthropomorphicity" and globalism of preschoolers' opinions about man's psyche are substituted in junior schoolchildren with more "natural-scientific" and differentiated understanding of the structure of some psychological functions; at the same time dynamic determinants of development of the mind (like the object activity, communication, education, and learning), the role of which is not yet perceived by the preschoolers, start finding place in the schoolchildren's causative judgements concerning the appearance of psychological phenomena.