Social mediation of puberty: an adaptive female strategy?

Females of two hamster species with contrasting degrees of gregariousness were tested for social influences on the timing of sexual maturation. When female dwarf hamsters (Phodopus sungorus campbelli), a gregarious species, were housed with an adult male at weaning, they began estrous cycles significantly earlier than when they were housed alone or with their family. Females housed with one or two female siblings at weaning matured significantly later than did all other females. Once mature, females housed with familiar males conceived later than did females housed with unfamiliar males. Rearing conditions also affected body weight; those housed with female siblings grew more slowly and attained a lower weight at 8 weeks of age than did females in all other groups. In contrast, when weanling female golden hamsters (Mesocricetus auratus), a solitary species, were housed with either an adult male, two female siblings, or alone, they did not differ in their rate of sexual maturation or growth. It is suggested that the degree to which social factors can accelerate or delay puberty is an adaptive characteristic and may be correlated with the degree of gregariousness of a species.     

Partial pictures as imagery-retrieval cues in young children's prose recall.

Two experiments, involving first-grade children, were conducted to test a retrieval-inefficiency explanation for the failure of visual imagery to facilitate young children's prose recall. Consistent with this explanation, children who were given stimuli presumed to elicit visual imagery (“partial pictures”) both during the presentation of a story and at the time questions were asked about the story recalled more story content than children given the partial pictures only during story presentation. An alternative account of these findings—namely that they may be attributed to a general cueing effect—was ruled out in the second experiment. Cognitive-developmental aspects of visual imagery strategies in prosememory situations are discussed.     

The group assessment of interpersonal traits (GAIT): Differentiation of measures and their relationship to behavioral response modes

GAIT performances of undergraduates were rated by peers and professsional clinical psychologists from video tape. Two additional measures; Potential for Clinical Effectiveness, and Insight into the Client's Problem, were included with GAIT measures of Openness, Empathy, Acceptance, and Outgoing and were also rated. GAIT ratings of Empathy, Acceptance, Potential for Clinical Effectiveness were not well differentiated. The behavioral response modes of each participant in the Understander's role were analyzed and correlated with GAIT measures, Potential and Insight. Empathy was correlated with reflecting feelings and advice-giving questions and negatively correlated with dysfunctional questions and silence. Acceptance was correlated with nonverbal attending behavior and negatively correlated with dysfunctional questions. Outgoing was positively correlated with information-gathering questions and total questions. Insight was correlated with reflecting feelings and negatively correlated with silence. An Understander who was rated high on Potential for Clinical Effectiveness was active, made statements about or asked questions pertaining to the Discloser's feelings, asked advice giving questions, tended to have infrequent silences during the interaction, and did not ask digressive or dysfunctional questions. Finally, the importance of Outgoing suggests the salience of an activity dimension in judged Clinical Potential.     

Perceived trustworthiness of knowledge sources: the moderating impact of relationship length

Prior meta-analytic evidence has indicated no association between relationship length and perceived trustworthiness. Viewing trustors as information processors, the authors propose a model in which relationship length, although having no direct effect on perceived trustworthiness, moderates the association between perceived trustworthiness and the basis on which people decide to trust each other. Specifically, as trustors learn about others, they base their trust on different kinds of information (demographic similarity, trustworthy behavior, and shared perspective). Hierarchical multiple regression analyses of a field survey of supervisors and subordinates from 3 companies (N = 88) provide evidence consistent with this prediction: Perceived trustworthiness is associated with demographic similarity in newer relationships, with trustworthy behavior in relationships that are neither brand new nor old but in-between, and with shared perspective in older relationships.     

Revenge versus forgiveness/forbearance in response to narrative-simulated victimization

The authors engaged men and women (N = 120) who read one of two versions of a dramatic narrative in which the narrator became HIV-positive following heterosexual intercourse with an AIDS-infected partner. Assuming the role of the narrator, the participants completed two situation-instigated criterion measures as a response to becoming HIV-infected, indicated whom they blamed for their predicament, and completed two "trait" predictor measures-negative affect and response to perceived victimization in everyday life. Trait victimization response and blaming the sexual partner were strongly associated with high rather than low negative affect. Reasons for the reluctance to blame the sexual partner and seek revenge were discussed, and recommendations were made to develop less problematic simulated victimization narratives.     

Relating social skills and social media use to consumer behavior: An investigation across the autism spectrum

In this study, we focus on the role of social functioning on consumer behavior, exploring social media use as a mediating factor. In order to facilitate our identification of social functioning competence as a factor, we increased the range by including a subgroup of respondents who identified themselves as being on the autism spectrum. Indeed, this group stood out as having difficulties in getting along with persons they interact with at school, at work and at home. We used these measures to define an individual differences index of social functioning that we call Quality of Social Functioning (QoSF). In a preliminary report, we showed that this index was predictive of social media use and its influence, with those scoring higher reacting more favorably and utilizing more of its features. In the main study, we focused on the content of social media posts by providing photos of posts that depicted either group activities or individual activities. Those scoring lower on our index gave lower ratings of posts in general, but especially for those posts depicting group activities. Results are discussed in terms of the important role of social functioning in the use of social media and its content as a vehicle for informing consumer behavior. We describe how the results of our study and related studies can be used by marketers to improve the lives of especially vulnerable consumers.     

Discourse after Closed Head Injury in Young Children

This study examined narrative discourse in 23 children, ages 6 to 8 years, who sustained a severe closed head injury (CHI) at least 1 year prior to assessment. Narratives were analyzed at multiple levels using language and information structure measures. Results revealed significant discourse impairments in the CHI group on all measures of information structure, whereas differences in the linguistic domain failed to reach significance. In addition, effects of age at injury and lateralization of lesion on discourse were considered. Although no significant differences were found according to age at injury, a consistent pattern of generally poorer discourse scores was found for the early injured group (<5 years). With regard to lesion focus, the group findings were unimpressive. However, preliminary examination of individual CHI cases with relatively large lateralized lesions suggested that the late injured children may show the language–brain patterns reported in brain-injured adults, whereas early injured children may not.