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241.
Research has revealed high accuracy in the perception of gaze in dyadic (sender- receiver) situations. Triadic situations differ from these in that an observer has to report where a sender is looking, not relative to himself. This is more difficult owing to the less favourable position of the observer. The effect of the position of the observer on the accuracy of the identification of the sender's looking direction is relatively unexplored. Here, we investigate this, focusing exclusively on head orientation. We used a virtual environment to ensure good stimulus control. We found a mean angular error close to 5 degrees. A higher observer viewpoint results in more accurate identification. Similarly, a viewpoint with a smaller angle to the sender's midsagittal plane leads to an improvement in identification performance. Also, we found an effect of underestimation of the error in horizontal direction, similar to findings for dyadic situations. 相似文献
242.
Vansteenwegen D Vervliet B Hermans D Thewissen R Eelen P 《Behaviour research and therapy》2007,45(2):291-300
Clinical fear of spiders was assessed in 39 patients before and after exposure treatment and at a 3-month follow-up. The assessment included behavioral, physiological and self-report measures. Some patients were tested in the treatment context (group Same), while others were tested in a different context (group Different). Both groups demonstrated a significant fear reduction from pre- to post-treatment in all measures, which persisted at the 3-month follow-up. Contrary to our expectations, no clear difference was observed between the groups at any moment. However, a 1-year follow-up test of the self-report measure revealed a return of fear in group Same, but not in group Different. These results show (1) that the effects of exposure treatment persisted over contexts and time in the short term, and (2) that conducting treatment and tests in different contexts enhanced efficiency of exposure treatment in the long term. 相似文献
243.
This study examined the effects of providing an explanation and voice on fairness perceptions and reactions of test takers under favorable and unfavorable selection decisions. Participants took either a cognitive ability test or an overt integrity test in a simulated selection situation. Then, the voice manipulation was introduced. Participants were informed of the hiring decision with or without an explanation. Results showed that type of test had effects on procedural fairness perceptions such that these reactions were more positive when a cognitive ability test was used. The results of voice and explanation manipulations on fairness perceptions indicated that providing an explanation had a positive effect on perceptions but, surprisingly, face-validity perceptions were less favorable when participants had voice opportunity. 相似文献
244.
Autobiographical memory specificity and emotional disorder 总被引:7,自引:0,他引:7
Williams JM Barnhofer T Crane C Herman D Raes F Watkins E Dalgleish T 《Psychological bulletin》2007,133(1):122-148
The authors review research showing that when recalling autobiographical events, many emotionally disturbed patients summarize categories of events rather than retrieving a single episode. The mechanisms underlying such overgeneral memory are examined, with a focus on M. A. Conway and C. W. Pleydell-Pearce's (2000) hierarchical search model of personal event retrieval. An elaboration of this model is proposed to account for overgeneral memory, focusing on how memory search can be affected by (a) capture and rumination processes, when mnemonic information used in retrieval activates ruminative thinking; (b) functional avoidance, when episodic material threatens to cause affective disturbance; and (c) impairment in executive capacity and control that limits an individual's ability to remain focused on retrieval in the face of distraction. 相似文献
245.
Frings C Rothermund K Wentura D 《Quarterly journal of experimental psychology (2006)》2007,60(10):1367-1377
Response retrieval theories assume that stimuli and responses become integrated into “event files” (Hommel, 1998) in memory so that a second encounter with a specific stimulus automatically retrieves the response that was previously associated with this stimulus. In this article, we tested a specific prediction of a recent variant of stimulus retrieval theories as introduced by Rothermund, Wentura, and De Houwer (2005): In selection tasks where target stimuli are accompanied by distractors, responses to target stimuli are automatically bound to distractor stimuli as well; repeating the distractor should retrieve the response to the target that formerly accompanied the distractor. In three experiments we confirmed this prediction: Distractor repetition facilitated responding in the probe in the case of response repetition whereas repeating the distractor delayed responding in the case of response change. 相似文献
246.
The present experiment investigated reinstatement of fear in humans using a differential fear conditioning preparation. In this experiment, one neutral stimulus (conditioned stimulus; CS+) was paired with an aversive stimulus (unconditioned stimulus; US) during the acquisition phase, while another neutral stimulus was not (CS−). This procedure led to a difference in responding between the CS+ and the CS− (i.e., differential conditioning). After this acquisition phase, an extinction phase followed, during which both CSs were presented without the US, resulting in a decrease in differential conditioned responding. Reinstatement refers to the return of extinguished conditioned responses due to the experience of US-only trials after the extinction phase. This phenomenon was investigated by presenting half of the participants (reinstatement group) with unpredictable USs after the extinction phase. The control group did not receive these USs after the extinction procedure. The results show that return of fear was clearly apparent after the reinstating USs. This return of fear was, however, not limited to the CS+. An increase in ‘conditioned’ responding was also observed for the control stimulus. This interesting observation will be discussed against the background of a number of recent theoretical conceptualizations of reinstatement. 相似文献
247.
This paper reports on the ways in which new entities are introduced into discourse. First, we present the evidence in support of a model of indefinite reference processing based on three principles: the listener’s ability to make predictive inferences in order to decrease the unexpectedness of upcoming words, the availability to the speaker of grammatical constructions that customize predictive inferences, and the use of “expectancy monitors” to signal and facilitate the introduction of highly unpredictable entities. We provide evidence that one of these expectancy monitors in Dutch is the post-verbal variant of existential er (the equivalent of the unstressed existential “there” in English). In an eye-tracking experiment we demonstrate that the presence of er decreases the processing difficulties caused by low subject expectancy. A corpus-based regression analysis subsequently confirms that the production of er is determined almost exclusively by seven parameters of low subject expectancy. Together, the comprehension and production data suggest that while existential er functions as an expectancy monitor in much the same way as speech disfluencies (hesitations, pauses and filled pauses), er is a higher-level expectancy monitor because it is available in spoken and written discourse and because it is produced more systematically than any disfluency. 相似文献
248.
Rothermund K Teige-Mocigemba S Gast A Wentura D 《Quarterly journal of experimental psychology (2006)》2009,62(1):84-98
Recoding processes can influence the Implicit Association Test (IAT; Greenwald, McGhee, & Schwartz, 1998) in a way that impedes an unequivocal interpretation of the resulting compatibility effects. We present a modified version of the IAT that aims to eliminate recoding, the IAT-RF (short for "IAT-recoding free"). In the IAT-RF, compatible and incompatible assignments of categories to responses switch randomly between trials within a single experimental block. Abandoning an extended sequence of consistent category-response mappings undermines recoding processes in the IAT-RF. Two experiments reveal that the IAT-RF is capable of assessing compatibility effects between the nominally defined categories of the task and effectively prevents recoding. By enforcing a processing of the stimuli in terms of their task-relevant category membership, the IAT-RF eliminates the confounding of compatibility effects with task switch costs and becomes immune against biased selections of stimuli. 相似文献
249.
Discrimination performance is often assessed by measuring the difference limen (DL; or just noticeable difference) in a two-alternative forced choice (2AFC) task. Here, we show that the DL estimated from 2AFC percentage-correct data is likely to systematically under- or overestimate true discrimination performance if order effects are present. We show how pitfalls with the 2AFC task may be avoided and suggest a novel approach for analyzing 2AFC data. 相似文献
250.
Learning from the existence of models: On psychic machines,tortoises, and computer simulations 总被引:1,自引:0,他引:1
Dirk Schlimm 《Synthese》2009,169(3):521-538
Using four examples of models and computer simulations from the history of psychology, I discuss some of the methodological
aspects involved in their construction and use, and I illustrate how the existence of a model can demonstrate the viability of a hypothesis that had previously been deemed impossible on a priori grounds.
This shows a new way in which scientists can learn from models that extends the analysis of Morgan (1999), who has identified
the construction and manipulation of models as those phases in which learning from models takes place. 相似文献