Investigates the effect of a recorded male human voice on neonate head, eye, mouth and crying behaviors. Vocal Stimulation enhanced head movement, eye opening, mouthing and crying and influenced hand sucking. Differences between breast fed and bottle fed babies were found for mouth orientation, hand sucking and crying. (RH)

Describes observer-based technique for assessing auditory capacities of infants from three to 12 months of age. This technique, referred to as the Observation-based Psychoacoustic Procedure (OPP), combines features of the Forced-choice Preferential Looking Technique and of the Visual Reinforcement Audiometry. Pure-tone detection and frequency…

Reports on three experiments that do the following: 1) investigate the motivational and reinforcing structure underlying male sex role action in a three-person (a female and two males) exchange; and 2) contribute new information on females' interpersonal evaluation of males expressing masculine sex typed and androgynous sex role orientation. (MW)

This experiment was designed to better understand the effects of individual differences, intent to learn, and stimulus familiarity on frequency judgment accuracy. Half of the participants in the study heard popular songs, and the other half listened to unfamiliar songs. Participants were subdivided into three more groups, introducing the "intent…