Zur Geschichte der Israelitengemeinde von Prostějov (Proßnitz)

Ohne ZusammenfassungIch danke Herrn Svatopluk Skládal, Fachlehrer i.R., Prostjov, sowie Herrn Josef Slepánek von der Proßnitzer Textilindustrie für vielerlei Hinweise. Ebenso danke ich dem Jüdischen Staatsmuseum in Prag.     

Psychometric functions and a correlation model of binaural detection

Sets of psychometric functions for the detection of tone in noise are reexamined for several interaural listening conditions. Best-fit sets of functions are determined for a “correlation” model of binaural masking level differences (MLDs). Based on only three parameters, this model predicts both the forms and relative positions of all such functions. The finding that MLDs are relatively independent of the detection level chosen for their determination is predicted by the model, and the sets of theoretical functions describe the data nearly as well as a previously determined empirical relation which requires M + 1 parameters for M curves.     

Let's pretend: The role of motoric imagery in memory for sentences and words

A number of theories suggest that for young children, concepts should have an important motoric (or sensory-motor) component. A levels-of-processing theory is proposed which predicts that processing on motoric imagery should facilitate memory for both isolated words and for sentences. Experiment 1 examined the effects of motoric enactment (viz., pretend play) of sentences on memory for the sentences. Motoric imagery facilitated memory for both children (5 to 7 years of age) and adults, though, contrary to expectations, the effects were weaker for the children than for the adults. Further, it was found that motoric imagery affected the initial acquisition, but was not important as a retreival cue. Experiment 2 examined the effects of motoric imagery on free recall of lists of unrelated words. Under these conditions, motoric imagery facilitated memory for both children (7 to 9 years of age) and adults equally; in contrast, visual imagery instructions had no effect on memory. These results indicate that motoric imagery may facilitate memory under conditions in which visual imagery has no effect. Theoretical implications are explored for previous experiments on pretend play which suggest that training for pretent enactment can facilitate cognitive development.     

The role of the native language in auditory and visual context effect modalities

Facilitation of memory for target stimuli due to similar context in the learning and testing phases is known as “context effect” (CE). The present study aimed to investigate the interaction between CE as elicited by the consistency of the language of presentation (Hebrew vs. English) with the native language (Hebrew vs. English) in both auditory and visual modalities. Overall, 120 individuals participated in the experiment. As predicted, CE was evident when the language of presentation remained consistent between study and test. Contrary to our prediction, Hebrew speakers remembered more English words, and vice versa. A possible explanation is that this difference is due to the cognitive effort invested when processing a less dominant language, thus resulting in better recognition. This study has several practical implications, including a recommendation that academic institutions test students in the language in which the material was presented in order to measure the students' knowledge more accurately.     

In a context of time: the impact of delay and exposure time on the emergence of memory context effects

Psychological Research - Research on context-mediated facilitation of recognition memory distinguishes between the effects of reinstating the exact same context previously associated with a target...     

Gratitude in buyer-seller relationships: a dyadic investigation

In addressing the call for research to understand affect in sales, this research uses moral affect theory and literature on emotional contagion to examine the effects of salesperson gratitude and customer gratitude on downstream relationship outcomes. The findings of this work suggest that salesperson prosocial behaviors account for the positive association between salesperson gratitude and customer gratitude. These prosocial behaviors – information sharing and extra-role behaviors – combined with customer gratitude serve as explanatory mechanisms for the positive effects of salesperson gratitude on customer commitment, which is an important result of buyer-seller interactions and an essential component of long-term relationships. Further, this research finds that salesperson extra-role behaviors and relationship length interact such that salesperson extra-role behaviors cultivate customer gratitude within developing and established relationships, but that these behaviors are particularly beneficial for less mature relationships. Understanding the role of salesperson gratitude and customer gratitude in driving relational outcomes contributes to both a theoretical understanding of the role of affect in sales and practical applications of emotions within buyer-seller relationships.     

Navigating personal and relational concerns: the quest for equilibrium

The authors' personal-relational equilibrium model suggests that people come to seek equilibrium in their dedication to personal and relational concerns in that these 2 important needs cannot always be gratified simultaneously. The authors proposed that the experience of personal-relational disequilibrium motivates attempts to restore equilibrium and that achieving equilibrium promotes life satisfaction. Four studies revealed good support for the model. In Study 1, a manipulation of anticipated future disequilibrium (vs. equilibrium) as a result of overdedication to either the personal or relational domain caused reduced motivation to address concerns in that domain and increased motivation toward the complementary domain. In Study 2, narratives describing disequilibrium experiences (vs. equilibrium experiences) exhibited increased motivation to restore equilibrium and reduced life satisfaction. In Study 3, diary reports of everyday disequilibrium were associated with increased same-day motivation to restore equilibrium, reduced same-day life satisfaction, and increased next-day dedication of effort to the complementary domain. In Study 4, experiences of disequilibrium predicted reduced well-being 6 months later. Collectively, these findings extend knowledge of how people regulate themselves toward equilibrium in pursuing 2 fundamental human concerns.     

Consistent haptic feedback is required but it is not enough for natural reaching to virtual cylinders

In virtual reality it is easy to control the visual cues that tell us about an object's shape. However, it is much harder to provide realistic virtual haptic feedback when grasping virtual objects. In this study we examined the role of haptic feedback when grasping (virtual) cylinders with an elliptical circumference. In Experiment 1 we placed the same circular cylinder at the simulated location of virtual elliptical cylinders of varying shape, so that the haptic feedback did not change when the visually specified shape changed. We found that the scaling of maximum grip aperture with the diameter of the nearest principal axis (.14+/-.04) was much weaker than when grasping real cylinders (.54+/-.04, Cuijpers, Brenner, & Smeets, 2006 Grasping reveals visual misjudgements of shape. Experimental Brain Research, 175, 32-44). For the scaling of grip orientation with the orientation of the cylinder we found large individual differences: the range is .07-.82 (average .42+/-.07) as compared to .55-.79 (average .67+/-.03) for grasping real cylinders. In Experiment 2 we provided consistent haptic feedback by placing real cylinders that matched the location, shape and orientation of the virtual cylinders. The scaling gains of both maximum grip aperture (.39+/-.04) and grip orientation (.56+/-.08) were substantially higher than in Experiment 1, but still lower than for grasps to real cylinders. The variability between participants for the scaling of grip orientation was also much reduced. These results showed that although haptic feedback must be consistent with visual information, it is not sufficient for natural prehension. We discuss the implications of these findings in terms of the integration of visual information with haptic feedback.