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31.
Visual scenes contain many statistical regularities such as the likely identity and location of objects that are present; with experience, such regularities can be encoded and can ultimately facilitate the deployment of spatial attention to important locations. Memory-guided attention has been extensively examined in adults with the 'contextual cueing' paradigm and has been linked to specific neural substrates – a medial temporal lobe (MTL)-frontoparietal network. However, it currently remains unknown when this ability comes 'online' during development. Thus, we examined the performance of school-aged children on an age-appropriate version of the contextual cueing paradigm. Children searched for a target fish among distractor fish in new displays and in 'old' displays on a touchscreen computer. Old displays repeated across blocks of trials and thus provided an opportunity for prior experience with the invariant configuration of the stimuli to guide attentional deployment. We found that over time children searched old displays significantly faster than new displays, thus revealing intact memory-guided attention and presumed function of an MTL-frontoparietal network in 5- to 9-year-olds. More generally, our findings suggest that children are remarkably sensitive to the inherent structure of their visual environment and this enables attentional deployment to become more efficient with experience. 相似文献
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Two studies were conducted to determine the kinds of questions people formulate for testing a hypothesis about another's personality. One group of subjects tested the hypothesis that the interviewee was an extrovert; another group tested the hypothesis that the interviewee was an introvert. Still another group was not provided with a hypothesis; instead, this group was asked to discriminate between an extroverted and an introverted interviewee. All subjects were free to formulate any kind of questions they wished. Analysis of the content of the questions performed by independent judges revealed that the great majority of the questions formulated by all of the groups either presented a choice between extroverted and introverted features or were open-ended. The percentage of questions about features that were consistent with the hypothesis was not significantly greater than the percentage of questions about features that were inconsistent with the hypothesis. Furthermore, in all of the groups there were virtually no biased questions–questions that already assume that the hypothesis is true. Finally, the questions asked by subjects who entertained either the extrovert hypothesis or the introvert hypothesis were as diagnostic (as rated by independent judges) as were the questions asked by subjects whose task was to discriminate between extroverts and introverts. The results were shown to be consistent with the diagnosing strategy but not with the confirmatory strategy of information-gathering. 相似文献
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Roberta L Klatzky Eve V Clark Marlys Macken 《Journal of experimental child psychology》1973,16(1):32-46
This study was designed to determine whether the asymmetry in children's acquisition of polar adjective pairs is based on linguistic factors related to differences in adult usage and frequency or on an underlying conceptual difference. 24 children, aged 3;7–4;11, took part in a concept-learning task in which nonsense syllables replaced English words for the positive and negative ends of four dimensions: size, height, length, and thickness. The data indicate that the syllables for the negative end of each dimension have a longer learning period and a greater prelearning error rate. These results support the hypothesis that the asymmetry observed in the acquisition of polar adjectives is based on an underlying conceptual asymmetry. 相似文献
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Herbert H. Clark Eve V. Clark 《Quarterly journal of experimental psychology (2006)》1968,20(2):129-138
This investigation studied what people remember in recalling complex sentences, whether it is certain semantic distinctions or merely transformational markers. After short intervals 24 subjects tried to recall sentences of six kinds which formed paraphrase sets: S1 before S2, S1 and then S2, After S1 S2, S2 after S1, S2 but first S1, and Before S2 S1. (S1 and S2 denote first and second clauses in temporal, not linguistic, order.) Subjects remembered the underlying sense of sentences with S1-S2 clause ordering better than those with S2-S1 clause ordering, regardless of transformational complexity. Subjects also showed a response bias, hence better verbatim recall, for sentences with subordinate clause second and for sentences with S1-S2 clause ordering. Sentence confusions indicated that subjects remembered three semantic distinctions: the temporal order, order of mention, and main-subordinate relation of the two described events. A theory of memory for marked and unmarked semantic distinctions was used to account for the results. 相似文献
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Nicole Leeper Piquero Michele Bisaccia Meitl Eve M. Brank Jennifer L. Woolard Lonn Lanza-Kaduce Alex R. Piquero 《Deviant behavior》2016,37(5):573-584
Although white-collar professionals are often held in high esteem, sometimes persons in privileged positions engage in misconduct. Unfortunately, very little is known about the correlates associated with professional misconduct and even less is known about the sanctioning process among lawyers who are licensed by state bar associations and therefore subject to the bar rules regulating their professional conduct. We examine 213 complaints filed in one fiscal year with the Florida Bar, alleging attorney misconduct and evaluate the factors that influence whether the complaint continued through, or was discarded at, each stage of the self-regulated grievance process. Using selection models that examine both the staff’s decision to send a case forward to the grievance committee as well as the grievance committee’s recommendation about sanctioning the lawyer, results show that both legal and extra-legal variables are related to these two processes. 相似文献
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To address the mental health needs of students, UK universities offer bespoke student counselling services. Economic pressures have led services to find innovative ways of redesigning their service pathway. Few studies have investigated staff perceptions of these changes. The aim of this study was to investigate perceptions of staff employed as counsellors at a student counselling service at a UK university that underwent service delivery changes. Face-to-face interviews were conducted with counsellors (n = 5). Framework analysis was used to identify themes and meta-themes. Five meta-themes were identified: the overarching service ethos and service working style; change in the university context; impact of change on working practice; recording and perceived impact on confidentiality; acceptability and effectiveness. Changes to the service resulted in a more efficient service that is perceived to be more acceptable to students. Staff perceptions differed regarding how changes have affected their counselling practice. Despite these differences, the increase in workload was consistently expressed. Tensions remain as staff strive to maintain high standards of service in this changing context. Future research should investigate the process of developing and implementing change as student counselling services strive to evolve sustainable ways of working. 相似文献
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Family‐Based Preventive Interventions: Can the Onset of Suicidal Ideation and Behavior Be Prevented?
Suicide is the second leading cause of death for youth aged 10–24. Research informed prevention efforts have the opportunity to decrease risk for suicidal ideation and behavior before it is manifested. Indeed, there is a small body of research findings demonstrating both proximal and distal effects of preventive interventions delivered in childhood and adolescence on suicidal ideation and/or behavior. These efforts build off of other secondary analyses of prevention research that has demonstrated benefits for multiple types of youth outcomes. This supplement provides “proof of concept” that family‐based preventive interventions aimed at reducing a number of risk factors for suicide (e.g., substance use, externalizing, and internalizing behavior) can prevent suicidal ideation and behaviors. 相似文献