Two experiments related to the development of verbal self-control in children were conducted. In the first experiment, 36 adults and 36 four year olds were administered a vocal alone, a motor alone, and a combined-reaction-time task. In the second experiment, 54 kindergarten subjects and 60 fifth-grade subjects were each administered a double…

Compared were two samples of 173 and 95 aggressive and normal 5- to 8-year-old boys on measures of verbal and cognitive development. Aggressive boys were significantly lower than normal boys on nonverbal tests but not on verbal tests. The pattern of test performance which distinguished aggressive and normal was consistent with the hypothesis that…

A. R. Luria, in his conception of the verbal control of behavior, regards four fundamental and distinctive functional attributes of the human speech system as making up a signaling system that humans alone possess: (1) the nominative role of language, (2) the generalizing or semantic role, (3) the communicative role, and (4) the role of…