The effect of a textured visual field on modality dominance in a ventriloquism situation

Despite the often encountered affirmation that vision completely dominates other modalities in intersensory conflict, there are cases where discordant auditorv information affects the localization of a visual signal. Experiment I shows that “auditory capture” occurs with a visual input reduced to a single luminous point in complete darkness, but not with a textured background. The task was to point at a flashing luminous point alternately in the presence of a synchronous sound coming from a source situated 15° to one side (“conflict trials,” designed to measure immediate reaction to conflict) and in its absence (“test trials,” to measure aftereffects). Adaptive immédiate reactions and aftereffects were observed in the dark, but not with a textured background. In Experiment II, on the other hand, “visual capture” of auditory localization was observed at the levels of both measures in the dark and with the textured background. That visual texture affects the degree of auditory capture of vision, but not the degree of visual capture of audition was confirmed at the level of aftereffects in Experiment III, where bisensory monitoring was substituted for pointing during exposure to conflict. The empirical finding eliminates apparent contradictions in the literature on ventriloquism, but cannot itself be explained in terms either of relative accuracy of visual and auditory localization or attentional adjustments.     

Extraction of information from continuously masked successive stimuli: An exploratory study

Results from this series of brief pilot experiments suggest that, under certain conditions, it is humanly possible to extract information from superimposed continuously masked letter strings presented successively on the VDU of a microprocessor.     

LE CARACTÈRE TOPOLOGIQUE DES PREMIÈRES REPRÈSENTATIONS SPATIALES DE l'ENFANT

The topological nature of the child's early spatial representations. Piaget's hypotheses revisited. — Three experiments bearing on Piaget's hypotheses on the topological nature of the child's early concepts of space are reported. The results of the first experiment, replicating Piaget's stereognostic technique on a larger scale, were shown to confirm the earliness of topological discriminations, but it was found also that some simple Euclidian discriminations (curvilinear vs rectilinear, indented vs non-indented forms) were not more difficult. The second experiment has shown that the child relied rather on topological than on simple Euclidian attributes when both types of attributes were presented in a conflictual situation; otherwise, the simple Euclidian discriminations were easier. In a third experiment, using a drawing technique along with visual exploration, topological discriminations proved easier than Euclidian discriminations in one instance only (open-closed vs curvilinear-rectilinear forms). It is suggested in conclusion that the child's early discriminations are not based on topology as such, but on certain geometrical properties which are fundamental to topology itself.     

MEASURING FEMINIST ATTITUDES

Henley and colleagues' results, obtained in the process of developing a scale to measure the diversity of feminist attitudes, highlight a dilemma for feminist researchers in psychology. On the one hand, we advocate research based on feminist theory. On the other, we believe that research should begin with the lived experiences of women, from which theory should be generated, rather than forcing women's responses into a predetermined theoretical mold. Several aspects of Henley and colleagues' results contradict feminist theory. I argue that researchers should use empirical data to refine feminist theories.     

The Measurement of Organizational Citizenship Behavior: Are We Assuming Too Much?

Organizational citizenship behavior (OCB) is assessed by measuring how frequently employees display extra-role and discretionary behaviors. One hundred forty-four managerial employees responded to an OCB scale and indicated the number of behaviors on the scale they believed to be formally evaluated. None of the behaviors were believed to be unevaluated by all employees. Data suggest that a typical OCB scale is not measuring citizenship behaviors for everybody, and that OCB measurement needs refinement. Best prediction of other organizational variables was obtained when both the OCB and an index of "unevaluated" behaviors were used as predictors. Supervisor fairness interacted with OCB when predicting organizational commitment, and this interaction was contingent on the extent OCBs were believed to be unevaluated.