Is “Σ” purple or green? Bistable grapheme-color synesthesia induced by ambiguous characters

People with grapheme-color synesthesia perceive specific colors when viewing different letters or numbers. Previous studies have suggested that synesthetic color experience can be bistable when induced by an ambiguous character. However, the exact relationship between processes underlying the identity of an alphanumeric character and the experience of the induced synesthetic color has not been examined. In the present study, we explored this by focusing on the temporal relation of inducer identification and color emergence using inducers whose identity could be rendered ambiguous upon rotation of the characters. Specifically, achromatic alphabetic letters (W/M) and digits (6/9) were presented at varying angles to 9 grapheme-color synesthetes. Results showed that grapheme identification and synesthetically perceived grapheme color covary with the orientation of the test stimulus and that synesthetes were slower naming the experienced color than identifying the character, particularly at intermediate angles where ambiguity was greatest.     

Influence of Cognitive Factors on Sexual Assault Recovery: Descriptive Review and Methodological Concerns

This article aims to verify whether the empirical data presented in the literature on sexually assaulted victims support the hypothesis advanced by various aetiological models, which is that cognitions play an important role in the development and maintenance of Post-Traumatic Stress Disorder. The first objective is to present state-of-the-art results on sexually assaulted victims' post-traumatic cognitions and their link to post-assault symptomatology. The second objective is to analyse the various methodological facets of those studies. Finally, paths for future studies are traced and recommendations are made.     

A Canadian French Adaptation of the Agoraphobic Cognitions Questionnaire: Cross-cultural Validation and Gender Differences

The first objective of this study is to present different aspects of the reliability and validity of the Canadian French adaptation of the Agoraphobic Cognition Questionnaire (ACQ). A second objective is to determine the dimensionality of the Canadian French version (ACQ-FC) in comparison to the factorial solutions uncovered in the American and Dutch versions. The third objective is to present gender differences in the agoraphobic group. Results suggest that the ACQ-FC and ACQ have similar internal consistency, temporal stability, construct validity, and discriminative validity. The ACQ-FC uncovers a two-factor model, which is similar to the American and Dutch models. As such, the ACQ-FC shows cross-cultural validity with the ACQ. This study demonstrates that the multidimensional construct is not culturally bound.     

The “Mind's Eye” and Metered-Memory Search

The effects of imagery value of noun stimuli were investigated in a metered-memory search paradigm. A within-subjects design was used with two levels of imagery (high or low) and three transformation levels. Response latency increased significantly with transformation level and was significantly faster when high-imagery nouns composed the memory set. The imagery effect was not found to lead to differential search rates. The hypothesis that metered-memory search would include a component of visually regenerating the memory set and holding it for the actual search was supported. No evidence was found against the notion that the search itself was verbal in nature.     

Interactive effects of proactive personality and display rules on emotional labor in organizations

Emotional labor is the management of emotional displays that happens in the context of a work role. Past research has shown that organizational display rules (standards for emotions that should be shown and hidden from customers) influence emotional labor, but little research has examined the individual differences that make employees more or less responsive to these display rules. The present study draws on concepts from the control theory model of emotional labor to address this limitation by examining the moderating role of proactive personality. Results indicate that proactive individuals are highly responsive to different types of display rules that prompt the use of different emotional labor strategies, highlighting the importance of how display expectations are framed for employees.     

Independence of terminal-link entry rate and immediacy in concurrent chains

In Phase 1, 4 pigeons were trained on a three-component multiple concurrent-chains procedure in which components differed only in terms of relative terminal-link entry rate. The terminal links were variable-interval schedules and were varied across four conditions to produce immediacy ratios of 4:1, 1:4, 2:1, and 1:2. Relative terminal-link entry rate and relative immediacy had additive and independent effects on initial-link response allocation, and the data were well-described by a generalized-matching model. Regression analyses showed that allowing sensitivity to immediacy to vary across components produced only trivial increases in variance accounted for. Phase 2 used a three-component concurrent-schedules procedure in which the schedules were the same as the initial links of Phase 1. Across two conditions, the relative reinforcer magnitude was varied. Sensitivity to relative reinforcer rate was independent of relative magnitude, confirming results of prior studies. Sensitivity to relative reinforcer rate in Phase 2 did not vary systematically across subjects compared to sensitivity to relative entry rate in Phase 1, and regression analyses confirmed again that only small increases in variance accounted for were obtained when sensitivities were estimated independently compared with a single estimate for both phases. Overall, the data suggest that conditioned and primary reinforcers have functionally equivalent effects on choice and support the independence of relative terminal-link entry rate and immediacy as determiners of response allocation. These results are consistent with current models for concurrent chains, including Grace's (1994) contextual choice model and Mazur's (2001) hyperbolic value-added model.     

Perceiving object motion using vision and touch

In a previous experiment, we showed that bistable visual object motion was partially disambiguated by tactile input. Here, we investigated this effect further by employing a more potent visuotactile stimulus. Monocular viewing of a tangible wire-frame sphere (TS) rotating about its vertical axis produced bistable alternations of direction. Touching the TS biased simultaneous and subsequent visual perception of motion. Both of these biases were in the direction of the tactile stimulation and, therefore, constituted facilitation or priming, as opposed to interference or adaptation. Although touching the TS biased visual perception, tactile stimulation was not able to override the ambiguous visual percept. This led to periods of sensory conflict, during which visual and tactile motion percepts were incongruent. Visual and tactile inputs can sometimes be fused to form a coherent percept of object motion but, when they are in extreme conflict, can also remain independent.