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981.
Generalization of the disruptive effects of alternative stimuli when combined with target stimuli in extinction 下载免费PDF全文
Christopher A. Podlesnik Ludmila Miranda‐Dukoski C. K. Jonas Chan Vikki J. Bland John Y. H. Bai 《Journal of the experimental analysis of behavior》2017,108(2):255-268
Differential‐reinforcement treatments reduce target problem behavior in the short term but at the expense of making it more persistent long term. Basic and translational research based on behavioral momentum theory suggests that combining features of stimuli governing an alternative response with the stimuli governing target responding could make target responding less persistent. However, changes to the alternative stimulus context when combining alternative and target stimuli could diminish the effectiveness of the alternative stimulus in reducing target responding. In an animal model with pigeons, the present study reinforced responding in the presence of target and alternative stimuli. When combining the alternative and target stimuli during extinction, we altered the alternative stimulus through changes in line orientation. We found that (1) combining alternative and target stimuli in extinction more effectively decreased target responding than presenting the target stimulus on its own; (2) combining these stimuli was more effective in decreasing target responding trained with lower reinforcement rates; and (3) changing the alternative stimulus reduced its effectiveness when it was combined with the target stimulus. Therefore, changing alternative stimuli (e.g., therapist, clinical setting) during behavioral treatments that combine alternative and target stimuli could reduce the effectiveness of those treatments in disrupting problem behavior. 相似文献
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Melanie Soderstrom Melissa Reimchen Disa Sauter James L. Morgan 《Cognition & emotion》2017,31(2):298-311
Adults are highly proficient in understanding emotional signals from both facial and vocal cues, including when communicating across cultural boundaries. However, the developmental origin of this ability is poorly understood, and in particular, little is known about the ontogeny of differentiation of signals with the same valence. The studies reported here employed a habituation paradigm to test whether preverbal infants discriminate between non-linguistic vocal expressions of relief and triumph. Infants as young as 6 months who had habituated to relief or triumph showed significant discrimination of relief and triumph tokens at test (i.e. greater recovery to the unhabituated stimulus type), when exposed to tokens from a single individual (Study 1). Infants habituated to expressions from multiple individuals showed less consistent discrimination in that consistent discrimination was only found when infants were habituated to relief tokens (Study 2). Further, infants tested with tokens from individuals from different cultures showed dishabituation only when habituated to relief tokens and only at 10–12 months (Study 3). These findings suggest that discrimination between positive emotional expressions develops early and is modulated by learning. Further, infants' categorical representations of emotional expressions, like those of speech sounds, are influenced by speaker-specific information. 相似文献
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Verbal framing effects have been widely studied, but little is known about how people react to multiple framing cues in risk communication, where verbal messages are often accompanied by facial and vocal cues. We examined joint and differential effects of verbal, facial, and vocal framing on risk preference in hypothetical monetary and life–death situations. In the multiple framing condition with the factorial design (2 verbal frames × 2 vocal tones × 4 basic facial expressions × 2 task domains), each scenario was presented auditorily with a written message on a photo of the messenger's face. Compared with verbal framing effects resulting in preference reversal, multiple frames made risky choice more consistent and shifted risk preference without reversal. Moreover, a positive tone of voice increased risk‐seeking preference in women. When the valence of facial and vocal cues was incongruent with verbal frame, verbal framing effects were significant. In contrast, when the affect cues were congruent with verbal frame, framing effects disappeared. These results suggest that verbal framing is given higher priority when other affect cues are incongruent. Further analysis revealed that participants were more risk‐averse when positive affect cues (positive tone or facial expressions) were congruently paired with a positive verbal frame whereas participants were more risk‐seeking when positive affect cues were incongruent with the verbal frame. In contrast, for negative affect cues, congruency promoted risk‐seeking tendency whereas incongruency increased risk‐aversion. Overall, the results show that facial and vocal cues interact with verbal framing and significantly affect risk communication. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
984.
Heather J. Peters Haley N. Schwenk Zachary R. Ahlstrom Lyndzie N. McIalwain 《Counselling psychology quarterly》2017,30(1):86-112
The main objective of the study was to investigate the types of microaggressions experienced by individuals with mental illness (MI) based on this marginalized group status. This study included 4 focus groups, comprised of 18 individuals diagnosed with MI(es). The researchers qualitatively identified four themes (a) conveying stereotypes against individuals with MI (i.e. assumptions of inferiority, seeking attention or being dramatic, assumptions of coldness, bringing MI upon themselves, and using MI as an excuse), (b) invalidating the experience of having a MI (i.e. doubting existence, doubting severity, and avoiding acknowledgment of the MI), (c) defining a person by their disorder, and (d) misuse of terminology. Participants revealed the main perpetrators (i.e. family, friends, and professionals) of the microaggressions. The researchers discuss: how the identified themes compare to the three categories of microaggressions (i.e. microinsults, microinvalidations, and microassaults); similarities and differences between the current results and previously identified racial, gender, and sexual orientation microaggressions perpetrated in daily interactions and in therapeutic settings; and the perpetrators of microaggressions as they relate to prejudicial attitudes and social distance. Finally, the authors make recommendations for practitioners and researchers. 相似文献
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This narrative essay shares observations and insights about how instructors can use creativity, student voice, and personalized learning to create more responsive educational leadership pedagogy. Three stories, as told by a professor and two former students, explore how students’ narratives can naturally inform educational leadership preparation across international borders. We aim to demonstrate how students’ narrative experiences in education can contribute to exisiting discourse and research on effective and innovative pedagogical practice in educational leadership preparation. 相似文献
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近年来,歧视研究领域中的"强势心理学"现象开始减弱,研究者们逐渐重视弱势群体自身对于歧视现象的知觉与反应.本文在整合歧视知觉相关领域研究成果的基础上,首先就歧视知觉的概念内涵、测量进行阐述;继而从"风险"与"弹性"两个方面,分别探讨歧视知觉的消极影响效应与间接性的积极影响效应;最后从整合的视角,对歧视知觉影响效应的内在机制——拒绝认同理论进行讨论.未来歧视知觉领域的研究将会进一步细化群体成员资格;重视考察个体和群体歧视知觉的作用差异;加强探讨个体水平的中介变量的作用;更多关注儿童群体的歧视知觉问题. 相似文献