Transformations of mathematical and stimulus functions

Following a pretest, 8 participants who were unfamiliar with algebraic and trigonometric functions received a brief presentation on the rectangular coordinate system. Next, they participated in a computer-interactive matching-to-sample procedure that trained formula-to-formula and formula-to-graph relations. Then, they were exposed to 40 novel formula-to-graph tests and 10 novel graph-to-formula tests. Seven of the 8 participants showed substantial improvement in identifying formula-to-graph relations; however, in the test of novel graph-to-formula relations, participants tended to select equations in their factored form. Next, we manipulated contextual cues in the form of rules regarding mathematical preferences. First, we informed participants that standard forms of equations were preferred over factored forms. In a subsequent test of 10 additional novel graph-to-formula relations, participants shifted their selections to favor equations in their standard form. This preference reversed during 10 more tests when financial reward was made contingent on correct identification of formulas in factored form. Formula preferences and transformation of novel mathematical and stimulus functions are discussed.     

Modeling the antecedents of proactive behavior at work

Using a sample of U.K. wire makers (N = 282), the authors tested a model in which personality and work environment antecedents affect proactive work behavior via cognitive-motivational mechanisms. Self-reported proactive work behaviors (proactive idea implementation and proactive problem solving) were validated against rater assessments for a subsample (n = 60) of wire makers. With the exception of supportive supervision, each antecedent was important, albeit through different processes. Proactive personality was significantly associated with proactive work behavior via role breadth self-efficacy and flexible role orientation, job autonomy was also linked to proactive behavior via these processes, as well as directly; and coworker trust was associated with proactive behavior via flexible role orientation. In further support of the model, the cognitive-motivational processes for proactive work behavior differed from those for the more passive outcome of generalized compliance.     

The relationships between justice perceptions, trust, and employee attitudes in a downsized organization

The authors examined perceptions of distributive justice, procedural justice, trust, organizational commitment, organizational satisfaction, and turnover intentions among survivors in an organization that had recently completed an organizational downsizing. Results suggested that trust partially mediated the relationship between distributive justice and both organizational satisfaction and affective commitment. Additionally, the relationship between procedural justice and turnover intentions was mediated by trust perceptions.     

Modeling human performance in statistical word segmentation

The ability to discover groupings in continuous stimuli on the basis of distributional information is present across species and across perceptual modalities. We investigate the nature of the computations underlying this ability using statistical word segmentation experiments in which we vary the length of sentences, the amount of exposure, and the number of words in the languages being learned. Although the results are intuitive from the perspective of a language learner (longer sentences, less training, and a larger language all make learning more difficult), standard computational proposals fail to capture several of these results. We describe how probabilistic models of segmentation can be modified to take into account some notion of memory or resource limitations in order to provide a closer match to human performance.     

Societal creativity: Problems with pathology

Abstract

This commentary on Simonton's “Political Pathology and Societal Creativity” argues that although the article offers a comprehensive and illuminating account of possible connections between societal creativity and political phenomena, viewing such connections in terms of a relationship between creativity and political pathology is problematic. The notion of political pathology presupposes some notion of political health, yet no standard of political health is offered by Simonton, nor are we given any criteria for determining whether certain social phenomena are pathological. Ultimately the notion of what constitutes a healthy society rests upon views about the nature of society which depend on a political philosophy. The danger in talk of political pathology lies in defining political health in terms of a particular political ideology, thereby making a value judgment regarding political ideals hidden in the guise of a strictly empirical claim.     

The relationship between competitive anxiety and imagery use

Abstract

Imagery has been proposed to be an effective strategy for controlling levels of competitive anxiety, but little b known about how imagery functions to achieve this. This study explored the relationship between imagery use. imagery ability. competitive anxiety and performance. Fifty-seven Junior North American Roller Skating Championship competitors completed the revised Movement Imagery Questionnaire (MIQ-R), the Sport Imagery Questionnaire (SIQ), and the Competitive State Anxiety Inventory—2 (CSAI-2). Results from stepwise multiple regression analyses revealed visual imagery ability and motivational arousal imagery to be predictors of cognitive state anxiety. Visual imagery ability also predicted somatic state anxiety. while motivational mastery imagery was a predictor of self-confidence. With respect to the relationship between imagery use and imagery ability, high imagery ability was associated with higher imagery use. Finally, self-confidence and kinesthetic imagery ability scores correctly classified a majority of the subjects as medalists versus non-medalists. These results suggest that imagery can be used to help control competitive anxiety levels and enhance self-confidence.