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241.
A brief self-report scale was developed to assess everyday performance failures arising directly or primarily from brief failures of sustained attention (attention-related cognitive errors-ARCES). The ARCES was found to be associated with a more direct measure of propensity to attention lapses (Mindful Attention Awareness Scale--MAAS) and to errors on an existing behavioral measure of sustained attention (Sustained Attention to Response Task--SART). Although the ARCES and MAAS were highly correlated, structural modelling revealed the ARCES was more directly related to SART errors and the MAAS to SART RTs, which have been hypothesized to directly reflect the lapses of attention that lead to SART errors. Thus, the MAAS and SART RTs appear to directly reflect attention lapses, whereas the ARCES and SART errors reflect the mistakes these lapses are thought to cause. Boredom proneness was also assessed by the BPS, as a separate consequence of a propensity to attention lapses. Although the ARCES was significantly associated with the BPS, this association was entirely accounted for by the MAAS, suggesting that performance errors and boredom are separate consequences of lapses in attention. A tendency to even extraordinarily brief attention lapses on the order of milliseconds may have far-reaching consequences not only for safe and efficient task performance but also for sustaining the motivation to persist in and enjoy these tasks. 相似文献
242.
Oliver Sacks observed autistic twins who instantly guessed the exact number of matchsticks that had just fallen on the floor, saying in unison "111". To test the suggestion that normal individuals have the capacity for savant numerosity, we temporarily simulated the savant condition in normal people by inhibiting the left anterior temporal lobe of twelve participants with repetitive transcranial magnetic stimulation (rTMS). This site has been implicated in the savant condition. Ten participants improved their ability to accurately guess the number of discrete items immediately following rTMS and, of these, eight became worse at guessing as the effects of the pulses receded. The probability of as many as eight out of twelve people doing best just after rTMS and not after sham stimulation by chance alone is less than one in one thousand. 相似文献
243.
Attitudes of professional psychiatric staff to personality disordered patients are notoriously pessimistic. This paper reports the findings from: (a) an exploratory survey to assess the components of attitude to personality disorder; (b) an assessment of the test-retest reliability of the attitude to personality disorder questionnaire; and (c) a confirmatory factor analysis with a third sample. Factor analysis of the feelings aroused in nurses by patients demonstrated an underlying structure consisting of enjoyment, security, acceptance, sense of purpose, and enthusiasm. This structure was confirmed in a subsequent sample. Test-retest reliabilities of the instrument were good to excellent. The scale has a robust structure, good psychometric properties, and is useful for outcome studies, benchmarking between units, and regular audits of staff attitude. Full details of the scale are provided, with normative data. 相似文献
244.
245.
Researchers have commonly assumed benefits that employees view as more valuable have a greater influence on their attitudes and behaviors. Researchers have used 2 common methods to measure benefit value: attaching a monetary value to benefits and using self-reports of benefit importance. The present authors propose that the 2 approaches are conceptually distinct and have different implications. They use a social exchange perspective to justify this distinction and integrate both approaches and benefit satisfaction into a more comprehensive model of benefit perception. Results suggest that both measures have practical applications depending on the nature of the exchange relationship between the organization and employees. However, this relationship depends on the specific benefit and on employee satisfaction with that benefit. Some benefits lend themselves to a monetary estimate, whereas others lend themselves more to a nonmonetary valuation. 相似文献
246.
Researchers have suggested that among bilinguals, solving word problems in mathematics is influenced by linguistic factors (K. Durkin & B. Shire, 1991; L. Verschaffel, B. Greer, & E. De Corte, 2000). Others have suggested that students exhibit a strong tendency to exclude real-world constraints in solving mathematics word problems (L. Verschaffel, E. De Corte, & S. Lasure, 1994). In the present study, the authors explored the effects of stating word problems in either Filipino or English on how Filipino-English bilingual students solved word problems in which the solution required the application of real-world knowledge. The authors asked bilingual students to solve word problems in either their first or second language. For some of the word problems, real-life constraints prevented straightforward application of mathematical procedures. The authors analyzed the students' solutions to determine whether the language of the word problems affected the tendency to apply real-life constraints in the solution. Results showed that the bilingual students (a) rarely considered real-life constraints in their solutions, (b) were more successful in understanding and solving word problems that were stated in their first language, and (c) were more likely to experience failure in finding a solution to problems stated in their second language. The results are discussed in terms of the relationship between linguistic and mathematical problem-solving processes among bilinguals. 相似文献
247.
This research is concerned with the question of differential predictability of handicapped and non-handicapped subgroups. The specific question posed was: Is the performance of non-handicapped subgroups of skilled, clerical, and non-skilled workers more predictable than that of handicapped subgroups when aptitude measures are used as predictors? Correlations between scores on selected scales of the GATB and a composite performance criterion were obtained for each of the subgroups. Results showed a pattern of consistently lower validities for the handicapped which suggests that aptitude measures typically used in selection may not be appropriate for the handicapped, and that validity coefficients may be diluted by the inclusion of this subgroup with the non-handicapped in validity studies. 相似文献
248.
This paper describes a transducer that allows for the concurrent recording of outer eyelid closure on both the left and the right eyes of a rabbit. The device makes use of voltage induced across a current-carrying conductor when the conductor is exposed to a magnetic field perpendicular to its axis (the Hall effect). The transducer is relatively compact, inexpensive, and allows the animal to be loosely restrained. 相似文献
249.
Recent researchers have argued both that there has been change in the way gender is portrayed in television commercials and that gender images have remained stereotypical. Comparing television commercials from the 1950s/early 1960s to commercials from the 1980s, this study explores the issue of how much, if any, change has occurred in gender images. Additionally, the study focuses on the gender display of main characters and the circumstances under which it varies. Results indicate that there has been change in the images of women but not men. The activity that women are pictured in significantly changed from the 1950s to the 1980s, and a change in activity has the strongest effect on the display of gender.Partial funding for this research was provided by the Academic Senate of the University of California, Riverside. Statistical assistance was provided by Masako Ishii-Kuntz. Research assistance was provided by Kathryn Bigelow, Saralyn Caloff, and Eloy Zarate. We gratefully acknowledge the use of films housed at the UCLA Film and Television Archive. Our thanks to the anonymous reviewers atSex Roles for their helpful comments. 相似文献
250.
Allan JS 《Science and engineering ethics》1996,2(4):486-490
Summary Nonhuman primates represent an important reservoir for the transmission of new infectious diseases to humans. While several
working groups and international agencies have grappled with the ethics of xenotransplantation, the Nuffield Council on Bioethics
have recently published a comprehensive and far-reaching series of recommendations that, while not eliminating the infectious
disease risks, have nonetheless detailed the major points for concern and have developed a rational approach to minimizing
these risks. This report should serve as the blueprint from which to proceed with xenotransplantation.
Dr. Allan’s research focuses on simian retroviruses, including simian immunodeficiency viruses (SIV). 相似文献