Front-view line drawings of male and female physiques were rated for attractiveness. Both subject sexes rated female physiques with greater curvature as less attractive. Male subjects' ratings were unaffected by breast size while female subjects showed slight negative evaluation of large breasts. Both subjects sexes rated broad shoulders as attractive in male physiques. Greater chest muscularity resulted in slightly higher attractiveness ratings; waist slimness was also judged attractive, particularly in female subjects.

Front-view drawings of male and female figures were rated for attractiveness by subjects of both sexes. The subject sexes did not differ in terms of the physique parameters judged relatively attractive. For female stimuli, attractiveness correlated negatively with waist width and hip width, and directly with figure slenderness. For male stimuli, attractiveness correlated positively with shoulder width and upper body taper.

Facial drawings of infants from 2 wk. to 4 yr. varying in eye height, pupil size, and mouth shape were rated for attractiveness by 181 female and 82 male undergraduates. Stimulus age was the most influential determinant of attractiveness. None of the facial variables showed a consistent effect at all ages though eye height was influential at 1 yr. and older. Judged in the context of a substantial age range the very young seem less attractive in absolute terms and possibly less susceptible to discriminations of attractiveness.

Groups of rats learned a discrimination problem in a four-choice apparatus while exposed to one of six auditory stimulus conditions. The stimuli were: a selection of Mozart, an amelodic version of this piece, a selection of Schoenberg, an amelodic version of this piece, white noise, and quiet. None of the groups acquired the discrimination more quickly than quiet controls. Ss exposed to the Schoenberg music, the amelodic version of it, and to white noise performed more poorly than the controls. Presence of nonrhythmic auditory stimulation is detrimental to performance on a discrimination task.

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