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The present experiment examined the effects of several disruptors on temporal discrimination. Pigeons responded under a 0-delay
symbolic matching-to-sample procedure in which responses to one key color were reinforced following the presentation of four
shorter sample durations, and responses to another key color were reinforced following the presentation of four longer sample
durations. Steady-state performance was disrupted by presession feeding, intertrial-interval food, visual distraction, and
extinction. All disruptors decreased temporal-discrimination accuracy. Analyses of the fitted cumulative normal functions
indicated that decreases in accuracy were produced mainly by decreases in overall stimulus control rather than specific effects
on timing. In addition, all disruptors selectively decreased accuracy on long-sample trials—a choose-short effect. This effect
is interpreted in terms of decreased attention to the samples under disruption. Current theories of the choose-short effect
do not appear to easily account for these results. 相似文献
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Virginia Ramseyer Winter Michaella Ward Sarah Pilgrim Mackenzie Cook Alison Summers 《American journal of sexuality education》2019,14(2):152-164
Research suggests body image is related to sexual behaviors, which can impact sexual health across the lifespan. This paper aims to explain the necessity for including body image content in sexuality education to improve outcomes among girls. Our recommendations, supported by theory and empirical research include (a) an assessment of existing curricula; (b) designing new, theoretically-informed curricula; (c) using innovative technology in sex education; (d) rigorous evaluation of existing and new curricula; and (e) revising the National Sexuality Education Standards. These recommendations are discussed after providing the necessary background and rationale. 相似文献
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W C Ward 《Child development》1969,40(3):869-878
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Deborah Ward Susan E Meadows Joan E Nashelsky 《Journal of the Medical Library Association》2005,93(1):88-96
OBJECTIVE: This article describes the contributions of medical librarians, as members of the Family Physicians' Inquiries Network (FPIN), to the creation of a database of clinical questions and answers that allows family physicians to practice evidence-based medicine using high-quality information at the point of care. The medical librarians have contributed their evidence-based search expertise and knowledge of information systems that support the processes and output of the consortium. METHODS: Since its inception, librarians have been included as valued members of the FPIN community. FPIN recognizes the search expertise of librarians, and each FPIN librarian must meet qualifications demonstrating appropriate experience and training in evidence-based medicine. The consortium works collaboratively to produce the Clinical Inquiries series published in family medicine publications. RESULTS: Over 170 Clinical Inquiries have appeared in Journal of Family Practice (JFP) and American Family Physician (AFP). Surveys have shown that this series has become the most widely read part of the JFP Website. As a result, FPIN has formalized specific librarian roles that have helped build the organizational infrastructure. CONCLUSIONS: All of the activities of the consortium are highly collaborative, and the librarian community reflects that. The FPIN librarians are valuable and equal contributors to the process of creating, updating, and maintaining high-quality clinical information for practicing primary care physicians. Of particular value is the skill of expert searching that the librarians bring to FPIN's products. 相似文献
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