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Until recently, loss aversion has been inferred exclusively from choice asymmetries in the loss and gain domains. This study examines the impact of the prospect of losses on exploratory search in a situation in which exploration is costly. Taking advantage of the largest available data set of decisions from experience, analyses showed that most people explore payoff distributions more under the threat of a loss than under the promise of a gain. This behavioral regularity thus occurs in both costly search and cost-free search (see Lejarraga, Hertwig, & Gonzalez, Cognition, 124, 334–342, 2012). Furthermore, a model comparison identified the simple win-stay-lose-shift heuristic as a likely candidate mechanism behind the loss–gain exploration asymmetry observed. In contrast, models assuming loss aversion failed to reproduce the asymmetry. Moreover, the asymmetry was not simply a precursor of loss aversion but a phenomenon separate from it. These findings are consistent with the recently proposed notion of intensified vigilance in the face of potential losses. 相似文献
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A comparison of computer‐assisted and therapist‐led instruction for children with autism spectrum disorder 下载免费PDF全文
Brittany A. LeBlanc Tiffany Kodak Tom Cariveau Vincent Campbell 《Behavioral Interventions》2017,32(2):133-143
The current investigation applied a model of assessment‐based instruction to an evaluation of the efficacy and efficiency of computer‐assisted and therapist‐led instruction on skill acquisition for 3 participants with autism spectrum disorder. We also evaluated the participant's attending during instruction and the social validity of each format of instruction. The results showed that computer‐assisted instruction was most efficient for 2 of the 3 participants, although attending varied across instructional formats. In addition, the social validity of instructional formats varied across participants. 相似文献
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Authors deal with practice of nursing care provided to Muslim clients in the Czech Republic. They use the explorative research design. By means of analyses of 21 semi-structured interviews with important social actors in the area of health care (spa resorts and hospitals). The study shows that Muslims are not homogeneous in their behaviour in the field of health care. In the spa environment, three interpretation perspectives can be found: the economic interpretation of a Muslim as the source of income of the Czech spa industry, which faces economic problems, the cultural interpretation developed within the spas (the experience capital of the staff and other clients), and the (a) cultural interpretation of Muslims and Islam brought to spas from the outside (the public opinion). However, in the area of hospitals, Muslims are not separated from the remaining categories of students; Muslim patients represent a small group of persons, and their treatment being conditioned by the distance or closeness of cultures, language skills, adaptation, and experiences with treatment in the Czech environment as perceived by the staff. 相似文献
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Gilad Hirschberger Uri Lifshin Stephanie Seeman Tsachi Ein‐Dor Tom Pyszczynski 《European journal of social psychology》2017,47(3):304-319
Three studies examined the effect of historical trauma reminders and criticism from international allies on attitudes toward current conflicts. In Study 1, Israeli participants (N = 116) were primed with the Holocaust, and read either that the U.S. President Obama supports Israel's right to defend itself and attack Iran, or that he opposes such action. Then, support for preemptive violence was assessed. Study 2 (N = 133) replicated this design, comparing inclusive and exclusive framings of the Holocaust. Study 3 (N = 478), examined the effect of Holocaust reminders and criticism from the European Union on attitudes toward militant policies against Palestinians. All three studies found that Holocaust primes juxtaposed with international criticism increased support for aggression, especially under exclusive framings of the Holocaust. Study 3, however, found this effect only among left‐wing participants. These findings indicate that when historical trauma is salient, international criticism may be ineffective and may even backfire. 相似文献
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Social dynamics in the preschool 总被引:1,自引:1,他引:0
Carol Lynn Martin Richard A. Fabes Laura D. Hanish Tom Hollenstein 《Developmental Review》2005,25(3-4):299
In this paper, we consider how concepts from dynamic systems (such as attractors, repellors, and self-organization) can be applied to the study of young children’s peer relationships. We also consider how these concepts can be used to explore basic issues involving early peer processes. We use the dynamical systems approach called state space grid (SSG) analysis and consider how it can be expanded beyond the study of dyads to the study of larger social groups and networks. In particular, we explore the role of homophily—that is, behavioral and sex similarity—as factors in the self-organization of young children’s social groups. A dynamic systems approach allows for consideration of peer processes difficult to assess using more traditional approaches. 相似文献
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Frank Baeyens Bram Vervliet Debora Vansteenwegen Tom Beckers Dirk Hermans Paul Eelen 《Learning and motivation》2004,35(2):136-166
Using a conditioned suppression task, we investigated simultaneous (XA−/A+) vs. sequential (X → A−/A+) Feature Negative (FN) discrimination learning in humans. We expected the simultaneous discrimination to result in X (or alternatively the XA configuration) becoming an inhibitor acting directly on the US, and the sequential discrimination in X becoming a negative occasion setter acting indirectly on the A-US link. After simultaneous FN training, X+ training completely abolished discriminative XA/A responding (Experiment 1), and X transferred inhibition to new targets B regardless of their training history (B+ or YB−/B+) (Experiment 2), suggesting X became a simple inhibitor. After sequential FN training, X showed the predicted selective transfer to a target B that also had been modulated (Y → B−/B+), not to a simple excitor (B+) (Experiment 4), but turning X into an excitor (X+) likewise disrupted discriminative X → A/A responding (Experiment 3). This suggests that X acquired a combination of modulatory and direct inhibitory properties, and that the joint contribution of both components is necessary for the suppression of the target-induced US activation. 相似文献