Exploring interhemispheric collaboration in older compared to younger adults

Physical and Name Identity letter-matching tasks were used to explore differences in interhemispheric collaboration in younger and older adults. To determine whether other factors might also be related to across/within-hemisphere processing or visual field asymmetries, neuropsychological tests measuring frontal/executive functioning were administered, and comparisons were made for participants split into low and high efficiency groups based on performance on the letter-matching tasks. A Task by Across/Within interaction was found for both groups, but with a stronger within-hemisphere advantage for the Physical Task and a weaker across-hemisphere advantage for the Name Task for older participants. More efficient groups and better performers on several neuropsychological tasks showed a reduced across-hemisphere advantage for the Name Identity task. Findings suggest that computational complexity, specific task demands, and perhaps trade-offs between age-related changes in gray and white matter all contribute to whether processing loads are distributed across or within hemispheres as we age.     

Emotional responses during social information seeking on Facebook

Based on existing research on social networking and information seeking, it was proposed that Facebook.com use could be conceptualized as serving two primary goals: passive social browsing (i.e., newsfeeds) and extractive social searching (i.e., friends' profiles). This study explored whether these categories adequately reflect Facebook use and whether they moderate physiological indicators of emotion. Thirty-six participants navigated Facebook.com while their on-screen activity and physiological responses associated with motivation and emotion were recorded. Results showed that the majority of screens encountered during Facebook use could be categorized as devoted to social browsing or social searching. Participants spent more time on social browsing than they spent on social searching. Skin-conductance data indicated that sympathetic activation diminished during the course of both social browsing and social searching. Facial EMG data indicated that participants experienced more pleasantness during the course of social searching than they experienced during social browsing. These results are discussed in terms of existing social-networking research and an evaluative space model of emotion.     

Bright Cars and Outsiders: Evidence of Asymmetric Estimates in Vehicular Speeds

Using an improved analysis, this paper provides new evidence regarding the influence of vehicle attributes on the estimation of vehicular speed by an observer. An analysis of speeding records indicates that brightly colored vehicles systematically receive citations for relatively lower speeds. Findings also indicate that trucks were cited for significantly higher speeds than were cars. The findings clarify earlier conflicts in the literature as to whether vehicular characteristics give an impression of higher speed. As an additional topic of investigation, evidence is provided that outsiders, those not living in the jurisdiction, received citations for significantly lower speeds.     

Science as (Historical) Narrative

The traditional mode of explanation in physics via deduction from partial differential equations is contrasted here with explanation via simulations. I argue that the different technologies employed constitute different languages, which support different sorts of narratives. The narratives that accompany simulations and articulate their meaning are typically historical or natural historical in kind. They explain complex phenomena by growing them rather than by referring them to general laws. Examples of such growth simulations and growth narratives come from the evolution of wave functions in quantum chaos, snowflake formation, and Etruscan genetics. The examples suggest a few concluding remarks on historical explanation.     

Gender, ethnicity, and career trajectories: a comment on Woodward (2010)

Woodward (2010) argued that Maria Rickers-Ovsiankina, Eugenia Hanfmann, and Tamara Dembo constituted a group of Jewish emigré psychologists who received substantial help in America from a "Jewish network" of patronage. This comment focuses on the historiographic problems and pitfalls of essentialized ethnic identification. There was no evidence that Maria Rickers-Ovsiankina was a Jew or that Eugenia Hanffman, raised Russian Orthodox, identified herself as a Jew, in contrast to Tamara Dembo, who did so. We argue that these women were part of an active network of Gestaltists, topologists, and Society for the Psychological Study of Social Issues leaders, and that any help that they received may be explained by the shared theoretical and disciplinary outlook of these groups as opposed to a "Jewish network."     

Interpretation bias in preschool children at risk for anxiety: a prospective study

A story-stem paradigm was used to assess interpretation bias in preschool children. Data were available for 131 children. Interpretation bias, behavioral inhibition (BI), and anxiety were assessed when children were aged between 3 years 2 months and 4 years 5 months. Anxiety was subsequently assessed 12 months, 2 years, and 5 years later. A significant difference in interpretation bias was found between participants who met criteria for an anxiety diagnosis at baseline, with clinically anxious participants more likely to complete the ambiguous story-stems in a threat-related way. Threat interpretations significantly predicted anxiety symptoms at 12-month follow-up, after controlling for baseline symptoms, but did not predict anxiety symptoms or diagnoses at either 2-year or 5-year follow-up. There was little evidence for a relationship between BI and interpretation bias. Overall, the pattern of results was not consistent with the hypothesis that interpretation bias plays a role in the development of anxiety. Instead, some evidence for a role in the maintenance of anxiety over relatively short periods of time was found. The use of a story-stem methodology to assess interpretation bias in young children is discussed along with the theoretical and clinical implications of the findings.     

Irrational Beliefs and Emotionality in Adolescents with and without Bronchial Asthma

Asthmatic adolescents (N = 129) between the ages of 12 and 18 were assembled into three groups on the basis of severity of illness and were compared with each other and with a fourth group of 74 healthy, nonasthmatic adolescents. Differences in selective cognitive (irrational beliefs) and emotional (anxiety, depression, and hostility) characteristics were examined. Multivariate analysis indicated that irrational beliefs in the importance of approval and the lack of control of emotions, along with self-reported anxiety, depression, or hostility, were strongly associated with disease severity. Whereas adolescents with mild asthma closely resembled the physically healthy comparison group, adolescents with moderate and severe asthma exhibited a cognitive-emotional complex that can be described as maladaptive or dysfunctional. Implications of these results for the treatment of asthma are discussed.     

An Empirical Investigation of Locus of Control and the Structure of Moral Reasoning: Examining the Ethical Decision-Making Processes of Sales Managers

A study of sales managers examines the utility of locus of control to predict managers' moral reasoning and its effect on ethical decision-making. Results indicate that external managers attach greater importance to teleological and act-oriented reasoning than do internals. To form ethical judgments, internal managers rely more on deontological evaluations than externals. In forming behavioral intentions, external managers rely more on teleological evaluations than internals.

For managerial practice, the findings suggest that internal managers exhibit harsher judgments of bribery, less intention to pay a bribe, and greater emphasis on rule-based decision-making. Internals' preference for deontological reasoning is related to behavior-based control and supervision structures, possibly leading to improvements in organizations' ethical climate.