In-group members' perceptions of a social mobility attempt: Effects of boundary permeability and outcome.

This study examined in-group members' impressions of a fellow member who attempted to join a higher power group, along with the interactive effects of the permeability of group boundaries and relative success of this social mobility attempt on impressions. Because groups with less permeable boundaries are typically more cohesive, a group member's relative success in achieving mobility should have meaning for these groups, as opposed to those with more permeable boundaries. Thus, it was predicted that the effect of success versus failure on in-group members' evaluations would be stronger when group boundaries were less permeable. The results showed that a member successful at social mobility was evaluated more positively than one who was unsuccessful, and this difference was larger when boundaries were less permeable. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Transactive discussions with peers and adults.

Piaget (1932) hypothesized that peer and adult–child discussions of moral dilemmas are qualitatively different and that children are more likely to use reasoning when interacting with peers. To test this hypothesis, the present study compared the interactive styles of child–child and adult–child dyads engaged in discussions of moral dilemmas, focusing on the use of logical operations (transacts). 48 7- and 11-yr-old girls were paired with either a female agemate or their mother. Ss used transacts in a higher proportion of their conversational turns when interacting with peers than when interacting with mothers. Ss produced proportionally more transactive responses when interacting with mothers because mothers produced proportionally more requests for idea clarification than did peer partners. Self-generated transacts, on the other hand, were produced proportionally more often with peers. When paired with peers, Ss produced transactive statements that operated on the partner's logic more often rather than clarifying their own logic. Results support Piaget's contention that moral discussions with peers feature a more spontaneous use of reasoning than do discussions with adults. (21 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Strategic failure in social interaction: Evidence for expectancy disconfirmation processes.

Two experiments were conducted to test the idea that individuals may fail strategically in order to lower the expectations that others hold for their performances. In a pilot study, participants reported that, when lacking confidence, they would be particularly uncomfortable and anxious with high expectations and would attempt to lower them strategically. In Experiment 1, socially anxious and nonanxious participants were led to believe that an interviewer's high or low expectations were due to a prodigious amount of effort or to very little effort. Socially anxious individuals tended to fail strategically when confronted with high as opposed to low expectations presumably based on a prodigious amount of previous effort. In Experiment 2, individuals high or low in social anxiety were led to believe that an interviewer held either high or low expectations for them. High-anxiety participants, led to believe their initial performance would affect high expections, showed much poorer initial performance relative to all other groups. These findings show that individuals who are particularly doubtful about their ability to perform up to par will sometimes fail strategically at the outset of social interaction as a means to create lower and safer standards. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A social learning model of consultation.

Presents a model of consultation based on A. Bandura's (1977) social learning theory. The philosophical assumptions of the model, which are drawn from reciprocal determinism, are presented, as are the roles and principles that govern this model. The consulting process, which involves relationship building, assessment, problem statement, goal setting, intervention, and evaluation, is also described. Implications of the model for consultants are discussed, an illustrative case vignette is provided. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

User Survey of Subjective Preference for Street-Lighting Sources

A telephone survey was conducted to assess user subjective preferences for metal halide versus high-pressure sodium lighting used in the Neighborhood Streetlight Demonstration Project conducted by an electric utility company. A variety of univariate and multivariate parametric and nonparametric statistical tests were conducted. This analysis revealed that users rated metal halide higher on color and aesthetic dimensions, they rated metal halide and high-pressure sodium equal in terms of overall satisfaction, and they more frequently named metal halide as the preferred source for a street other than the one they live on. Residents living under metal halide lighting were seen to exhibit more of a loyalty for their source than did high-pressure sodium users. In agreement with previous studies, users' assessment of lighting quantity were uncorrelated with photometric measurements. We conclude that further studies are warranted because these suggested preferences and loyalties, if confirmed, would be important to consider in designing street lighting and in setting street-lighting policy.     

Modelling and analysing cognitive causes of security breaches

In this paper we are concerned with security issues that arise in the interaction between user and system. We focus on cognitive processes that affect security of information flow from the user to the computer system and the resilience of the whole system to intruder attacks. For this, we extend our framework developed for the verification of usability properties by introducing two kinds of intruder models, an observer and an active intruder, with the associated security properties. Finally, we consider small examples to illustrate the ideas and approach. These examples demonstrate how our framework can be used (a) to detect confidentiality leaks, caused by a combination of an inappropriate design and certain aspects of human cognition, and (b) to identify designs more susceptible to cognitively based intruder attacks.     

Visualizing "green oil" in live algal cells

We report here that BODIPY 505/515, a green lipophilic fluorescent dye, serves as an excellent vital stain for the oil-containing lipid bodies of live algal cells. BODIPY 505/515 vital staining can be used in combination with fluorescent activated cell sorting to detect and isolate algal cells possessing high lipid content.     

Achievement motivation, achieving styles, and morale in the elderly.

This research extends the literature on variables predictive of morale from the often-researched demographic, physical, and social factors to the psychological variables of achievement motivation and achieving styles. A sample of 115 older adults completed the Work and Family Orientation Questionnaire, the L-BLA Achieving Styles Inventory, and the PGC (Philadelphia Geriatric Center) Morale Scale. Regression analysis indicated that five variables were predictive of morale: (a) direct achieving style, (b) instrumental achieving style, (c) health, (d) social participation, and (e) age. The instrumental achieving style and age were inversely related to morale, although the direct and instrumental achieving styles were the two best predictors of morale. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Gonadal hormones influence the emergence of cortical function in nonhuman primates.

The role of gonadal hormones in the maturation of the orbital prefrontal cortex (ORB) was studied in normal male and female rhesus monkeys, monkeys given ORB lesions at 50 days of age, and female monkeys given androgen at different ages. Monkeys were tested on an object discrimination reversal task at 75 days of age. Gender influenced the performance of monkeys on the task during normal development and after ORB lesions. Normal males made fewer errors than did normal females. Females treated with androgen performed similarly to normal male monkeys. ORB lesions produced deficits in male monkeys and in females given androgen during late prenatal or early postnatal life, but not in normal females. These findings suggest that gonadal hormones may play an inductive role in the differentiation of higher cortical function in nonhuman primates. (PsycINFO Database Record (c) 2010 APA, all rights reserved)