GENDER DIFFERENCES IN LEADER EMERGENCE PERSIST EVEN FOR DOMINANT WOMEN: AN UPDATED CONFIRMATION OF ROLE CONGRUITY THEORY

Role congruity theory predicts that women will be less likely than men to emerge as leaders when expectations for the leader role are incongruent with gender stereotypes. A 2 × 2 × 3 design that crossed the sex of the dominant partner, mixed- and same-sex dyads, and masculine, feminine, and neutral tasks involved 120 dyads of unacquainted college students in which one partner scored higher in dominance. In same-sex partnerships, the dominant member consistently emerged as leader. In mixed-sex dyads, the gender typing of the task did not influence dominant male ascendance but it did affect women's. When the task was masculine-typed or neutral, less dominant men were more likely to emerge as the leader of the dyad, frequently being appointed by the dominant woman herself. Thus, even when women possess the agentic quality of dominance consistent with the leader role, the incongruence between masculinized task demands and gender stereotypes mitigate against women's leadership emergence.     

The strength of the orienting response during blocking

In two experiments rats initially received appetitive Pavlovian conditioning with an auditory conditioned stimulus (CS). Subsequently this stimulus was presented in compound with a novel light and paired with the same appetitive reinforcer. In keeping with the outcome of many such experiments on blocking, there was very little evidence of appetitive conditioning during subsequent independent presentations of the light. Of main concern in the present experiments, however, was the influence of this training on the strength of the orienting response directed towards the light. When the light was first presented it elicited a strong orienting response. The strength of this response declined rapidly when the light was presented in compound with the previously trained auditory CS but more slowly when it was paired with the reinforcer either by itself or in conjunction with an initially neutral auditory stimulus. It is suggested that the extent to which the events following the light are accurately predicted determines the strength of orientation towards this stimulus.     

THE PERCEIVED VALUE OF DIRECT AND INDIRECT INFLUENCE STRATEGIES:

In this study, we assessed the generalizability of the Western preference for direct versus indirect influence strategies and its relation to participant sex, perceptions of participant power, and concerns for politeness among a sample of 138 American, 41 Japanese, and 44 Korean female and male college students. Regardless of cultural group or participant sex, direct strategies were reported as first choice strategies, whereas indirect strategies were cited as strategies of last resort. Participant power, not participant sex, was predictive of the students'reported strategy use. Although the American, Japanese, and Korean students were more similar than different on measures of perceived power and frequency of strategy use, concerns for politeness were reflected in the Japanese and Korean students'less confrontational strategy style.     

Hippocampal lesions attenuate latent inhibition and the decline of the orienting response in rats

Two experiments using rats assessed the effect of dorsal hippocampal lesions on the orienting response (OR) elicited by a discrete light and on the subsequent associability of that light. In both experiments subjects received extensive nonreinforced exposure to the light, and it was found that the decline in the OR evident in sham-operated animals was severely attenuated by hippocampal lesions. Subsequently the light was paired with condensed milk in Experiment 1, and it was found that conditioning was faster in the lesioned than in the sham-operated group. Experiment 2 used a conditioned inhibition procedure whereby the light was presented in a nonreinforced compound with a tone which, when presented alone, acted as a signal for condensed milk. Again this discrimination was mastered more rapidly by lesioned animals. Relevant control groups indicated no differences between lesioned and sham-operated animals in learning about a novel light. Thus, hippocampal lesions influence both the loss of associability of a stimulus and the decline in the OR it elicits, which, in turn, suggests that the OR acts as an index of stimulus associability.