Item to decision mapping in rapid response learning

Repeated classification of a visually presented stimulus rapidly leads to a form of response learning that bypasses the original evaluation in favor of a more efficient response mechanism. In two experiments, we examined the level of input and output representations that make up this form of learning. In Experiment 1, alterations in the finger mapping of the output response had no effect on the expression of response learning, demonstrating that a classification decision, not motor output, is associated with repeated items. In Experiments 2A and 2B, we tested whether response learning would transfer across different visual exemplars of a studied item. There was no evidence of transfer to different visual exemplars, even when these exemplars were judged to be highly visually similar. Taken together, these results indicate that response learning consists of the formation of an association between a specific visual representation and a classification decision.     

Rationally Functional Dependence

Two different types of functional dependencies are compared: dependencies that are functional due to the laws of nature and dependencies that are functional if all involved agents behave rationally. The first type of dependencies was axiomatized by Armstrong. This article gives a formal definition of the second type of functional dependencies in terms of strategic games and describes a sound and complete axiomatization of their properties. The axiomatization is significantly different from the Armstrong’s axioms.     

Practice with anxiety improves performance,but only when anxious: evidence for the specificity of practice hypothesis

We investigated for the first time whether the principles of specificity could be extended to the psychological construct of anxiety and whether any benefits of practicing with anxiety are dependent on the amount of exposure and timing of that exposure in relation to where in learning the exposure occurs. In Experiment 1, novices practiced a discrete golf-putting task in one of four groups: all practice trials under anxiety (anxiety), non-anxiety (control), or a combination of these two (i.e., the first half of practice under anxiety before changing to non-anxiety conditions, anxiety-control, or the reverse of this, control-anxiety). Following acquisition, all groups were transferred to an anxiety condition. Results revealed a significant acquisition-to-transfer decrement in performance between acquisition and transfer for the control group only. In Experiment 2, novices practiced a complex rock climbing task in one of the four groups detailed above, before being transferred to both a high-anxiety condition and a low-anxiety condition (the ordering of these was counterbalanced across participants). Performance in anxiety transfer was greater following practice with anxiety compared to practice without anxiety. However, these benefits were influenced by the timing of anxiety exposure since performance was greatest when exposure to anxiety occurred in the latter half of acquisition. In the low-anxiety transfer test, performance was lowest for those who had practiced with anxiety only, thus providing support for the specificity of practice hypothesis. Results demonstrate that the specificity of learning principle can be extended to include the psychological construct of anxiety. Furthermore, the specificity advantage appears dependent on its timing in the learning process.     

The effect of word length on hemispheric word recognition: evidence from unilateral and bilateral-redundant presentations

Visual half field studies have repeatedly demonstrated the left hemisphere's superiority for language processing. Previous studies examined the effect of word length on bilateral and unilateral performance by comparing foveal and parafoveal presentations. The present study removed the potential confound of acuity by using parafoveal presentations for both unilateral and bilateral trials. Twenty participants named 3-, 4-, 5-, and 6-letter words. The results supported previous findings, with right hemisphere performance being particularly degraded with increases in word length. There was no difference between left hemisphere and bihemispheric performance in terms of speed or accuracy, suggesting that bihemispheric performance is reliant upon the strategy of the hemisphere superior for language processing. Overall, the pattern of results supports the notion that the left hemisphere's superior linguistic capacity results from a more parallel processing strategy, while the right hemisphere is reliant upon a more sequential mechanism.     

A path analysis of stress appraisals, emotions, coping, and performance satisfaction among athletes

Objectives

In this study we examined athletes’ stress appraisals, emotions, coping, and performance satisfaction ratings using a path analysis model. This is the first study to explore all of these constructs in a single study and provides a more holistic examination of the overall stressful experience that athletes encounter.

Design

Cross-sectional.

Methods

Participants were 557 athletes, aged between 18 and 64 years (M age = 22.28 years, SD = 5.72), who completed a pre-competition measure of stress appraisals and emotions. Participants also completed a coping questionnaire and a subjective performance measure after competing, with regards to how they coped during competition and how satisfied they were with their performance.

Results

Path analysis revealed that appraisals of uncontrollable-by-self, stressfulness, and centrality were positively associated with the relational meaning threat appraisals. Threat appraisals were associated with unpleasant emotions, prior to competition, and pre-ceded distraction- and disengagement-oriented coping. The pre-competition appraisals of controllable-by-self, centrality, controllable-by-others, and stressfulness were associated with challenge relational meanings, which in turn were linked to task-oriented coping during competition. Task-oriented coping was positively related to superior subjective performance.

Conclusions

Our findings support the notion that stress appraisals, emotions, and coping are highly related constructs that are also associated with performance satisfaction.     

AN INVESTIGATION OF THE DIFFERENCE DEFICIT HYPOTHESIS USING THE CLOZE PROCEDURE

Abstract

This study considers the hypothesized differences of difference and deficitreaders using the cloze procedure in narrative passages at the fourth grade level. The authors reject the hypothesis that deficit readers are better able to use surrounding context than difference readers. While the study's experimental design to test the difference/deficit hypothesis may not be the most powerful, it is a modified replication of a previous study from which the difference/deficit hypothesis was drawn (Cromer & Weiner, 1966). As such it does not seem to support difference/deficit notions of reading disability.