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151.
A total of 160 Asian Americans (55 Chinese, 13 Filipino, 27 Japanese, 32 Korean, 15 Pacific Islander, and 18 Vietnamese) completed a series of standardized instruments assessing their environmental, social, and psychological experiences as undergraduates. The purpose of this study was threefold: to provide a composite of student experiences; to investigate the interrelationships of comfort in the university environment, social support, and self‐beliefs; and to examine the influence of these constructs on the academic persistence decisions of Asian American undergraduates. Overall, social support variables were the strongest predictors of academic persistence. Research‐derived implications for university personnel and professional counselors are provided.  相似文献   
152.
Plasticity of feature-based selection in triple-conjunction search.   总被引:1,自引:0,他引:1  
Two experiments examined the disruption of feature-based selection in triple-conjunction search at multiple target transfers. In Experiment 1, after 10 training sessions, a new target possessing previous distractor features was introduced. This produced disruption in RT and fixation number, but no disruption in feature-based selection. Specifically, there was a tendency to fixate objects sharing the target's contrast polarity and shape and this did not change even upon transfer to the new target. In Experiment 2, 30 training sessions were provided with three target transfers. At the first transfer, the results replicated Experiment 1. Subsequent transfers did not produce disruption on any measure. These findings are discussed in terms of strength theory, Guided Search, rule-based approaches to perceptual learning, and the area activation model.  相似文献   
153.
Previous research conducted in 1999 highlighted ethical concerns behind challenge studies inducing psychosis with ketamine and made recommendations to enhance ethical standards. Recently, a plethora of clinical trials have evaluated the efficacy of ketamine to treat mood disorders, which lead to complex ethical issues. Pharmaceutical companies and researchers hope to profit by developing patentable variations on ketamine for treating depression. Media have labeled ketamine as a “miracle” antidepressant. Some clinics offer expensive off-label use of ketamine to treat mood disorders. This article examines the ecological validity of ketamine trials, measures to protect patients, informed consent procedures, financial inducements to participants and conflict of interest of researchers, therapeutic misconception, concealment, and deception. Further recommendations are purposed to improve ethical standard of clinical research involving ketamine.  相似文献   
154.
Despite increased longevity, many people fail to save the funds necessary to support their retirement. In an attempt both to elucidate and remedy this failing, research exploring the “future-self continuity” hypothesis has revealed that temporal discounting is decreased and saving increased when connections between one’s current and future self are strengthened. Here, we explored the possibility that a basic component of mental imagery – spatial visual perspective – may be an important determinant of people’s decisions to spend now or save for the future. The results of two experiments supported this prediction. Rates of saving were enhanced when a distant-future event was generated from a third-person vs. first-person vantage point, an effect that was mediated by visual bodily awareness during mental imagery.  相似文献   
155.
We report two experiments designed to investigate the potential use of vibrotactile warning signals to present spatial information to car drivers. Participants performed an attention-demanding rapid serial visual presentation (RSVP) monitoring task. Meanwhile, whenever they felt a vibrotactile stimulus presented on either their front or back, they had to check the front and the rearview mirror for the rapid approach of a car, and brake or accelerate accordingly. We investigated whether speeded responses to potential emergency driving situations could be facilitated by the presentation of spatially-predictive (80% valid; Experiment 1) or spatially-nonpredictive (50% valid; Experiment 2) vibrotactile cues. Participants responded significantly more rapidly following both spatially-predictive and spatially-nonpredictive vibrotactile cues from the same rather than the opposite direction as the critical driving events. These results highlight the potential utility of vibrotactile warning signals in automobile interface design for directing a driver’s visual attention to time-critical events or information.  相似文献   
156.
Construal of the self as independent or interdependent in relation to others has been found to correlate significantly with social anxiety symptom ratings, raising concerns about possible cultural bias in these measures for Asian Americans. To investigate the validity of self-reported social anxiety symptoms, we examined the role of ethnicity in the associations among social anxiety, self-construal, and adaptive social functioning in a sample of 229 Asian- and European American college students. Results revealed that ethnicity moderated the relationship between self-construal and social anxiety such that interdependent self-construal was associated with higher social anxiety only for first generation Asian Americans. However, there were no significant ethnic differences in the associations between social anxiety self-reports and several measures of social functioning.  相似文献   
157.
Individuals who qualify equally for membership in two racial groups provide a rare window into social categorization and perception. In 5 experiments, we tested the extent to which a rule of hypodescent, whereby biracial individuals are assigned the status of their socially subordinate parent group, would govern perceptions of Asian-White and Black-White targets. In Experiment 1, in spite of posing explicit questions concerning Asian-White and Black-White targets, hypodescent was observed in both cases and more strongly in Black-White social categorization. Experiments 2A and 2B used a speeded response task and again revealed evidence of hypodescent in both cases, as well as a stronger effect in the Black-White target condition. In Experiments 3A and 3B, social perception was studied with a face-morphing task. Participants required a face to be lower in proportion minority to be perceived as minority than in proportion White to be perceived as White. Again, the threshold for being perceived as White was higher for Black-White than for Asian-White targets. An independent categorization task in Experiment 3B further confirmed the rule of hypodescent and variation in it that reflected the current racial hierarchy in the United States. These results documenting biases in the social categorization and perception of biracials have implications for resistance to change in the American racial hierarchy.  相似文献   
158.
This article identifies research priorities in respect of the social dimension of ageing. Three areas are explored; ageing in one's own community; ageing in another community as a consequence of migration and ageing in a residential community. Exemplar research studies, conducted by the authors (singly) are presented briefly and contextualised in the literature to reveal key research priorities. The determination of research priorities should take account of those aspects of social functioning that are associated with factors amenable to change. Key research priorities identified include the development of a better understanding of the importance of social networks; how these are created, maintained to promote the successful social ageing of individuals.  相似文献   
159.
Previous studies have shown the appearance of right-sided language-related brain activity in right-handed patients after a stroke. Non-invasive brain stimulation such as transcranial direct current stimulation (tDCS) and repetitive transcranial magnetic stimulation (rTMS) have been shown to modulate excitability in the brain. Moreover, rTMS and tDCS have been found to improve naming in non-fluent post-stroke aphasic patients. Here, we investigated the effect of tDCS on the comprehension of aphasic patients with subacute stroke. We hypothesized that tDCS applied to the left superior temporal gyrus (Wernicke’s area) or the right Wernicke’s area might be associated with recovery of comprehension ability in aphasic patients with subacute stroke. Participants included right-handed subacute stroke patients with global aphasia due to ischemic infarct of the left M1 or M2 middle cerebral artery. Patients were randomly divided into three groups: patients who received anodal tDCS applied to the left superior temporal gyrus, patients who received cathodal tDCS applied to the right superior temporal gyrus, and patients who received sham tDCS. All patients received conventional speech and language therapy during each period of tDCS application. The Korean-Western Aphasia Battery (K-WAB) was used to assess all patients before and after tDCS sessions. After intervention, all patients had significant improvements in aphasia quotients, spontaneous speech, and auditory verbal comprehension. However, auditory verbal comprehension improved significantly more in patients treated with a cathode, as compared to patients in the other groups. These results are consistent with the role of Wernicke’s area in language comprehension and the therapeutic effect that cathodal tDCS has on aphasia patients with subacute stroke, suggesting that tDCS may be an adjuvant treatment approach for aphasia rehabilitation therapy in patients in an early stage of stroke.  相似文献   
160.
With the upsurge of older adults still working, the labour force is becoming increasingly diverse in age. Age diversity in an organisation can increase the likelihood of intergenerational conflict. The present study aims to integrate the dual concern model and social identity theory to explain the underlying mechanisms of intergenerational conflict by examining the effects of social identity salience on motivational orientation and conflict strategies. A 2 (subgroup identity salience: low vs. high younger/older group membership) × 2 (superordinate identity salience: low vs. high organisational group membership) factorial design with a structured questionnaire on motivational orientation and conflict strategies in relation to a hypothetical work conflict scenario was implemented among 220 postgraduate university students in Hong Kong. Results revealed that subgroup and superordinate identities had a combined influence on conflict strategies but not in motivational orientation. Subgroup and superordinate identification promoted integrating and compromising strategies, superordinate identification promoted obliging strategy, subgroup identification promoted dominating strategy and no identification promoted avoiding strategy. Age did not moderate these relationships. This study contributes to the development of the integrated model of conflict.  相似文献   
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