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941.
To examine whether a weapon's presence impairs witnesses' memory for auditory information (as it impairs memory for visual information), we conducted two experiments in which undergraduates watched one version of a videotape depicting a male target who held either a weapon or a neutral object and conversed with a female character. The semantic content of his remarks was either easy or difficult to comprehend. The weapon's presence did not affect voice identification accuracy or memory for the target's vocal characteristics (e.g., pitch, loudness, speech rate) but did worsen memory for semantic content in the Difficult Comprehension condition. Our results can be explained by multiple resource models of attention, which propose separate resource "pools" for different sensory modalities.  相似文献   
942.
Four studies examined a new measure of compulsive hoarding (Saving Inventory-Revised; SI-R). Factor analysis using 139 hoarding participants identified 3 factors: difficulty discarding, excessive clutter, and excessive acquisition. Additional studies were conducted with hoarding participants, OCD participants without hoarding, community controls and an elderly sample exhibiting a range of hoarding behavior. Internal consistencies and test-retest reliabilities were good. The SI-R distinguished hoarding participants from all other non-hoarding comparison groups. The SI-R showed strong correlations with other indices and methods of measuring hoarding (beliefs, activity dysfunction from clutter, observer ratings of clutter in the home) and relatively weaker correlations with non-hoarding measures (positive and negative affect and OCD symptoms). The SI-R appears to be an appropriate instrument for assessing symptoms of compulsive hoarding in clinical and non-clinical samples.  相似文献   
943.
We investigated the effect of discourse context on the access of word meaning during reading. Target words were role names (e.g., electrician) for which there was a gender stereotype (e.g., electricians are stereotypically male). Target sentences contained a reflexive pronoun that referred to the role name (e.g., The electrician taught herself ...). Participants read these target sentences with or without paragraph context while their eye movements were monitored. In the absence of discourse context and in neutral discourse contexts, fixation times on the reflexive pronoun and immediately following the pronoun were inflated when the pronoun specified a gender that mismatched the stereotype, indicating that the gender stereotype was activated upon encountering the role name. When prior discourse context indicated the gender of the role-named character, this mismatch effect was eliminated. The mismatch effect indicates that gender stereotypes are automatically activated in the absence of disambiguating information. The lack of an effect when gender has previously been specified is consistent with the lexical reinterpretation model proposed by Hess, Foss, and Carroll (1995).  相似文献   
944.
Stimulus equivalence‐based instruction (EBI) was used to teach young children of typical development three 4‐member equivalence classes containing contact information from three caregivers (e.g., mother, father, and grandmother). Each class comprised the caregiver's (a) photograph, (b) printed name, (c) printed phone number, and (d) printed name of employer. A pretest‐train‐posttest‐maintenance design with a nontreatment control group comparison was used. Pretests and posttests assessed the degree to which class‐consistent responding occurred across both visual–visual matching tasks and intraverbals. Intraverbal responding was also probed with a novel instructor. Overall, EBI participants scored significantly higher during the posttests than the control participants across both the derived relations and intraverbal tests. These differences maintained 2 weeks later. Thus, responding generalized to (a) a different topography (i.e., intraverbal), (b) auditory versions of the stimuli, and (c) in the presence of a novel instructor. How such procedures may benefit lost children are discussed.  相似文献   
945.
Accumulating evidence from basic and translational research indicates that fear extinction may be best explained by principles of “inhibitory learning,” by which prefrontal cortical structures inhibit activity in the amygdala. New guidelines for the clinical practice of exposure therapy have arisen from research on inhibitory learning, but these guidelines have received little empirical testing in clinical samples of youth receiving treatment for anxiety disorders. We investigated the acceptability, feasibility, and initial efficacy of conducting exposure therapy for anxiety disorders in youth according to clinical guidelines developed from basic research on inhibitory learning principles, using a pilot randomized controlled trial design. Thirteen youths (ages 7 to 16) were recruited from a university hospital-based pediatric outpatient clinic to participate in a 9-week treatment study and were randomized to either an inhibitory learning-based exposure condition or a standard exposure condition. Results supported the feasibility and acceptability of an inhibitory learning-based approach to exposure therapy in youth and, despite the small sample size, effect sizes were in favor of the inhibitory learning approach on several measures. Differences between the standard exposure and inhibitory learning conditions are discussed using two case examples. Discussion of results and lessons learned may contribute to changes in clinical guidelines for optimally effective practice of exposure.  相似文献   
946.
Preservice and novice teachers often identify behavior management as an area of weakness that they attribute to a lack of sufficient instruction during their teacher preparation. Behavioral skills training (BST) is an evidence‐based teaching methodology based on the principles of applied behavior analysis used to teach new skills. This study investigated the use of BST in the university setting to teach undergraduate preservice teachers enrolled in a field‐based special education course to implement a token economy during small group instruction with children. A single‐case research design was used to assess the effectiveness of using BST by evaluating accuracy of implementation before and after BST. Results showed BST was an effective teaching procedure and social validity measures collected from the preservice teachers indicated BST was acceptable to all participants. Limitations and needs for future research are discussed.  相似文献   
947.
Aggressive behavior is prevalent among veterans of post-9/11 conflicts who have posttraumatic stress disorder (PTSD). However, little is known about whether PTSD treatments reduce aggression or the direction of the association between changes in PTSD symptoms and aggression in the context of PTSD treatment. We combined data from three clinical trials of evidence-based PTSD treatment in service members (N = 592) to: (1) examine whether PTSD treatment reduces psychological (e.g., verbal behavior) and physical aggression, and; (2) explore temporal associations between aggressive behavior and PTSD. Both psychological (Estimate = -2.20, SE = 0.07) and physical aggression (Estimate = -0.36, SE = 0.05) were significantly reduced from baseline to posttreatment follow-up. Lagged PTSD symptom reduction was not associated with reduced reports of aggression; however, higher baseline PTSD scores were significantly associated with greater reductions in psychological aggression (exclusively; ß = -0.67, 95% CI = -1.05, -0.30, SE = -3.49). Findings reveal that service members receiving PTSD treatment report substantial collateral changes in psychological aggression over time, particularly for participants with greater PTSD symptom severity. Clinicians should consider cotherapies or alternative ways of targeting physical aggression among service members with PTSD and alternative approaches to reduce psychological aggression among service members with relatively low PTSD symptom severity when considering evidence-based PTSD treatments.  相似文献   
948.
Work–family conflict constitutes an important source of occupational stress predicting teachers’ burnout, and cognitive variables have shown to be core structures in explaining human adaptation to stress. Nevertheless, the role of cognitive appraisal needs to be fully analysed to comprehend how it can mediate the relationship between stress and burnout. In order to understand the potential mediation of cognitive appraisal in the relationship between stress and burnout, we adopted conceptual models of stress that highlighted the value of cognitive appraisal on positive and negative reactions to work demands. Also, we analysed the potential moderation of sex and age in the relationship between work–family conflict, cognitive appraisal, and burnout due to inconsistent findings on how these personal variables can interfere on these relations. In this study, we used structural equation modelling (SEM) to test the mediating of cognitive appraisal in the relationship between work–family conflicts and burnout. A survey with measures of work–family conflicts, cognitive appraisal, and burnout was administered to the participants consisting of 438 Portuguese teachers from kindergarten through high school, aged between 28 and 67 years (M = 46.85; SD = 7.88), 304 of whom were females (69.41%). The results confirmed that cognitive appraisal partially mediated the relationship between work–family conflict and burnout. The mediation effect of cognitive appraisal on the relationship between work–family conflict and burnout was invariant regardless of teachers’ sex or age. In sum, cognitive appraisal should be considered in order to understand teachers’ adaptation to work.  相似文献   
949.
In most retail environments, customers can handle products. However, the downside of this freedom to touch products is product contamination. The objectives of this paper are threefold: (a) to examine the effects of contamination cues (tangible vs. intangible) on consumer responses; (b) to show the mediating role of contamination, disgust, and mental imagery; and (c) to assess the robustness of the results on three product categories for different levels of contact intimacy. Three experimental laboratory studies on different product categories (a book [n = 95], T‐shirt [n = 118], and apple [n = 102]) showed that tangible contamination cues decreased product evaluation and purchase intentions more than intangible contamination cues did. Moreover, contamination, disgust, and mental imagery mediated the effects of contamination cues on product evaluation and purchase intention. The findings provide theoretical and practical insights to help researchers and retailers understand the effect of tangible contamination cues on consumer responses.  相似文献   
950.
In this study the authors evaluated the associations between war- and disaster-related problems and indicators of psychological distress (posttraumatic cognitions and culturally-specific symptoms of depression) among a sample of Tamil widows in the Eastern Provence of Sri Lanka. Furthermore, community support was evaluated as a mediator of these associations. Surveys were administered to women (N?=?156) in an interview format by trained research assistants who were native Tamil speakers. Mediation hypotheses were evaluated using path analysis. Results showed that war-related problems, but not disaster-related losses, was significantly associated with community support and posttraumatic cognitions, such that higher number of war-problems was associated with lower community support and more posttraumatic cognitions. Community support had a significant negative association with posttraumatic cognitions and depression. Additionally, we found evidence that war-related problems was indirectly associated with depression through community support. Although the magnitude of associations was small, results suggest that contextual problems resulting from years of armed conflict may be associated with less support from one’s community which, in turn, is associated with increased psychological distress. Limitations and implications for intervention and future research are discussed.  相似文献   
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