Cover -- Title -- Copyright -- Contents -- Soviet Developmental Psychology: Selections from Soviet Psychology -- Experimental Reflexological Research on the Newborn -- Experimental Reflexological Study of Early Discriminative Reflexes in Infancy -- A Child's Speech Responses and the Social Environment -- The Variability of Mental Functions as the Child Develops (Based on a Comparative Study of Twins) -- Play and Its Role in the Mental Development of the Child -- The Development of Voluntary Memory in Preschool-age Children -- Words as Conditioned Inhibitors in Infants During the First Three Years of Life -- Conditions for the Formation of the Simplest Voluntary Actions in Very Young Children -- Perception and Naming of Color in Early Childhood -- The Development of Associations in Very Young Children -- Certain Physiological Mechanisms in the Initial Development of the Mental Life of the Child -- The Formation and Development of Perceptual Activity -- On the Development of Proper Pronunciation in Children One and a Half to Three Years Old -- The Development in Preschool-age Children of the Ability to Analyze Words by Their Sounds -- Echolalia as a Stage in the Formation of the Second-Signal System -- Stimuli Evoking Positive Emotions in Infants in the F irst Months of Life -- Comparative Analysis of the Activity of the Preschool Child with Real Objects and Their Schematic Representations -- Mastery of the Syllabic Composition of Words at an Early Age -- A Study of the Influence of Sociohistorical Conditions on Child Development (Comparative Investigation, 1929 and 1966) -- The Emergence of Perceptual Actions -- Some Problems in Learning Russian as a Foreign Language (Essays on Psycholinguistics) -- Causes of Children's Word Invention (A Psychophysiological Model of the Genesis of the Syntactically Structured Verbal Utterance)