Self-control in male and female rats

Eight male and 8 female Wistar rats were exposed to a discrete-trial procedure in which they chose between the presentation of a small (one pellet) or a large (three pellets) reinforcer. The delay to the small and large reinforcer was 6.0 s in the first condition of Experiment 1. Subjects consistently chose the large reinforcer. When the delay to the small reinforcer was decreased to 0.1 s in the next experimental condition, all subjects continued to choose the large 6.0-s delayed reinforcer. When the contingencies correlated with the two levers were reversed in the next experimental condition, the majority of subjects (5 males and 6 females) still chose the large delayed reinforcer over the small immediately presented reinforcer. The delay to the small reinforcer was maintained at 6.0 s, but the delay to the large reinforcer was varied among 9.0, 15.0, 24.0, and 36.0 s in Experiment 2, in which 4 males and 4 females participated. Most subjects consistently chose the large increasingly delayed reinforcer, although choice for the small 6.0-s delayed reinforcer developed in some females when the large reinforcer was delayed for 24.0 or 36.0 s. These choice patterns were not predicted from a literal application of a model that says choice should favor the alternative correlated with the higher (amount/delay) ratio.     

Pupillary response of male and female subjects to pupillary difference in male and female picture stimuli

On exposure to a series of identical pictures of a young man and a young woman differing only in size of the pupils of the eyes, the eyes of married Ss dilated more to the opposite sex pictures than to the like sex pictures, dilated most to the opposite sex picture with the larger pupils, and dilated least to the like sex picture with the larger pupils. Difficulties with neutral stimuli were noted and an improved method of assessing picture stimuli brightness was described.     

Fearfulness and Affective Evaluations of Pictures

Subjects high and low in temperamental fearfulness made a speeded decision regarding whether each of a series of affective pictures was unpleasant or pleasant. Fearful subjects made faster decisions on unpleasant pictures than did low fear subjects, whereas no difference was found between low and high fear participants when processing pleasant materials. Reaction time differences as a function of fearfulness were amplified when unpleasant pictures were also high in arousal, suggesting that stimulus intensity is a relevant methodological factor when assessing effects of temperament in cognitive processing. Taken together, these data are consistent with the hypothesis that an anxious or fearful temperament is associated with rapid reactions to unpleasant events.     

Self-evaluations of male and female managers

Two separate samples of males and females holding first-level management positions in United States organizations completed questionnaires which asked for self-evaluation on a number of job-related characteristics and for attributions of causality for successful and unsuccessful job experiences. In support of previous research, results indicated that males evaluated their performance more favorably than did women, and rated themselves as having more ability and greater intelligence. Men also saw ability as more responsible for their success than did women, but the sexes did not differ in attributions to luck, effort, or task. Implications for equal opportunity and potential for change are considered.     

Sex-role identity and male and female homosexuality

The incidences of sex-role outcome within homosexual and heterosexual male and female young adult samples were compared using a fourfold typology (both masculine and feminine, masculine, feminine, neither masculine nor feminine). Sex-role identity disparities between the female groups were more clear-cut; the most striking difference was the high incidence of masculinity (60%) within the homosexual female group. No significant differences for males were found, although a trend was noted toward higher incidence of femininity and lower incidence of masculinity in homosexuals. The second purpose of the study was to search for possible developmental antecedents to heterosexual deficit in unselected college samples. The same key pattern of psychometric indices was identified for males and females. Low heterosexuality and the closest approximation to the modal sex-role identity among homosexuals of their sex were found in females primarily identified with masculine fathers and low in role consistency and in males primarily identified with feminine mothers and low in role consistency.     

Psychology of male and female communicative activity

The article features a brief overview of theoretical and empirical studies in communication psychology and sociability of men and women, boys and girls. Russian and foreign studies are summarized to point out that girls and women place greater emphasis on communication and interpersonal relations than do boys and men. Moreover, female communication is more emotional. The article presents the results of the author's own empirical study of male and female communicative activity. Communicative activity is viewed as a complex psychological phenomenon, a degree of the subject's willingness to interact. Communicative activity was studied with the test proposed by the Russian psychologist, Krupnov, and designed to detect the following components of communicative activity: dynamic (natural), emotional, motivational, cognitive, regulatory, productive, and two sorts of communication difficulties (operational and personal). Gender differences in communicative activity are shown on a sample of 480 participants aged 18-40 (240 men and 240 women). The article then describes communicative styles of adolescents (130 boys and 130 girls, aged 19-24). Various communicative styles are featured, including "energetic, businesslike," "conformal, emotional," "diplomatic, externally oriented" for boys and "energetic, sociable," "emotional, difficult," and "complaisant, expressive" for girls. Every person's individuality and gender identity are shown to impact their communicative style.     

Beliefs about female and male nonverbal communication

Participants (N= 441) rated from 1 to 10 how frequently or well they believed hypothetical women and men performed each of twenty nonverbal behaviors or skills. Women were believed to use more expressive and involved nonverbal behaviors than men, and to be more skilled at sending and receiving nonverbal messages. Men were believed to be louder and more interruptive, and to display more nervous, dysfluent behaviors. Ratings given to females by females were higher than were ratings in the other gender combinations for over half the variables, which may accurately describe female—female interaction. Perceived gender differences correlated positively with differences reported in observational studies, indicating that beliefs about nonverbal gender differences were generally accurate. The authors wish to thank Tom Leahy for his assistance in data collection.     

Visibility and evaluation of female and male leaders

Visibility and evaluation of female and male leaders were assessed as a function of follower sex, performance level, and rater sex by having subjects view videotapes of interacting triads. Subjects identified persons exhibiting leadership behaviors as leaders regardless of experimental condition. Performance level had significant main effects on six of seven leader evaluation measures, with leaders of high-performing groups being rated more leaderlike, dominant, intelligent, competent, industrious, and supportive. Although female leaders were equally visible and were evaluated the same as male leaders, the probability of continued success was seen as lower for groups with female leaders of all-female or all-male followers. Results were interpreted as an indication that relevant behavioral data can mitigate stereotypic perceptions and evaluations in the individual case, but that current evaluations of female leaders may fail to generalize to future performance expectancies.