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A series of five experiments examined the effects of irrelevant speech on proofreading and memory. Four of the experiments used a proofreading task and showed that the deleterious effects of irrelevant speech: (1) depend on the speech being meaningful, (2) are only present when the burden on short-term memory is low and (3) are manifested in a lower detection rate for non-contextual as opposed to contextual errors. Neither the spatial location of the speech (either in terms of spatial dispersion of sources or spatial movement of a single source) nor the intensity of the speech (in a range bounded by 50 dB(A) and 70 dB(A)) had any effect on proofreading. Late selection models of attention are favoured by the results in preference to models having arousal, short-term memory or early selection in attention as their basis. A final experiment showed serial recall for visual lists to be impaired by the presence of any speech-like sound (including reversed speech and speech in an unfamiliar language) which suggests a set of phenomena qualitatively different from those associated with proofreading. Throughout the article the practical consequences of the findings are emphasized. 相似文献
13.
Veronica Pearson 《Journal of Family Therapy》1993,15(2):163-185
This article is based on 37 interviews with patients and family members in a psychiatric hospital in Hubei, the People's Republic of China. The main goal was to investigate the explanatory models that families used in understanding the causes of mental illness. Case material is provided to illustrate some of the issues concerning family dynamics and problems. Families use a holistic framework for understanding psychiatric disturbance. Doctors' explanatory framework is largely medical and they show no interest in family relationships. Equally, families make it clear that they need more information and support from medical practitioners, which is not forthcoming. 相似文献
14.
R M Page 《Adolescence》1990,25(100):803-806
Researchers have hypothesized that behavioral problems are accentuated when a shy person wants to be with other people. This need to be with others--sociability--is a related but separate construct from shyness. The purpose of the present study was to examine the relationship of shyness and sociability to illicit substance use in a sample of 654 male high school students. It was found that, in general, shy male adolescents were significantly more likely to use illicit substances when compared to those who were not shy. Those who were shy and highly sociable were significantly more likely to use hallucinogenic substances than were those who were shy and low to moderate in sociability as well as those who were not shy. Although not significant, there was a trend toward more cocaine and marijuana use among those who were shy and highly sociable. The implications of these findings for those who work with adolescents are discussed. 相似文献
15.
David A. Kravitz Veronica Stinson Tracy L. Chavez 《International Journal of Selection & Assessment》1996,4(1):24-34
Participants (N= 212) rated the fairness, job relevance, appropriateness, and invasiveness of 16 tests that could be used to select or promote people into production or management positions. Fairness, job relevance and appropriateness were highly correlated, and were combined to form a composite evaluation scale. Evaluations and invasiveness ratings varied among the 16 tests, with the most positive ratings given to interviews and work samples and the most negative ratings given to astrology, graphology and polygraphs. Evaluations of four tests were affected by the position (manager vs. production worker). Evaluations of 11 tests and invasiveness ratings of two tests were affected by respondent experience with the test. Respondents who had experienced the tests evaluated them more positively and considered them to entail a smaller invasion of privacy. Responses were not affected by whether the test was to be used for selection versus promotion decisions. 相似文献
16.
Richard A. van den Pol Brian A. Iwata Martin T. Ivancic Terry J. Page Nancy A. Neef F. Paul Whitley 《Journal of applied behavior analysis》1981,14(1):61-69
This study examined classroom-based instruction in restauranting skills for handicapped persons. Three male students were taught each of four skill components in sequential order: locating, ordering, paying, and eating and exiting. Training was implemented in a multiple baseline design across subjects and consisted of modeling and role playing in conjunction with photo slide sequences and a simulated ordering counter. The use of a menu containing general item classes and a finger matching procedure for identifying errors in the delivery of change greatly reduced the reading and math skills necessary to enter and complete the program. Periodic probes were conducted in a McDonald's restaurant prior to, during, and up to one-year following the termination of training. In addition, two probes (overt and covert observation) were conducted in a Burger King restaurant to assess further generalization to a location different from the one depicted throughout training. Results showed that students' performance on restaurant probes improved as a result of training, generalized to novel settings, maintained over an extended period of time, and was comparable to that of a normative sample of nonretarded persons. 相似文献
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18.
The role of assembled phonology in reading comprehension 总被引:1,自引:0,他引:1
Veronika Coltheart S. E. Avons Jacqueline Masterson Veronica J. Laxon 《Memory & cognition》1991,19(4):387-400
The contribution of assembled phonology to phonological effects in reading comprehension was assessed. In Experiment 1, subjects judged the acceptability of sentences with regular, exception, and nonword homophone substitutions and orthographic controls. Significantly more errors occurred to sentences with regular-word homophones than to exception words, and error rates for nonword homophones were low and not significant. Experiment 2 showed that this was not due to differences in the sentence frames. In Experiment 3, the subjects judged as unacceptable those sentences containing an exception word that sounded correct when read according to spelling-to-sound rules. Significantly higher error rates occurred only for low-frequency exception words. Experiment 4 showed that task conditions affect semantic-categorization error rates for nonword homophones. These results indicate that both assembled and addressed phonology contribute to sentence and word comprehension, but the low error rate for nonwords suggests that an early lexical check may be applied. 相似文献
19.
Little attention has been given to teaching adaptive community skills to retarded persons. In this study, five retarded male students were taught basic pedestrian skills in a classroom. Training was conducted on a model built to simulate city traffic conditions. Each subject was taught five specific skills involved in street crossing in sequence, viz. intersection recognition, pedestrian-light skills, traffic-light skills, and skills for two different stop-sign conditions. Before, during, and after training, subjects were tested on generalization probes on the model and under actual city traffic conditions. Results of a multiple-baseline design across both subjects and behaviors indicated that after receiving classroom training on the skills, each subject exhibited appropriate pedestrian skills under city traffic conditions. In addition, training in some skills appeared to facilitate performance in skills not yet trained. 相似文献
20.
Lyman A. Page 《Zygon》2007,42(3):767-778
Progress in technology has allowed dynamic research on the development of the human brain that has revolutionized concepts. Particularly, the notions of plasticity, neuronal selection, and the effects of afferent stimuli have entered into thinking about brain development. Here I focus on development from the age of four years to early adulthood, during which a 30 percent reduction in some brain synapses occurs that is out of proportion to changes in neuronal numbers. This corresponds temporally with changes in normal child behavior from the loose‐associative, almost schizoid, thinking and art of the four‐year‐old to the more trained, or disciplined, or acculturated—and restrained—personality of the young adult. I propose that the synaptic changes can best be thought of as a winnowing process likely subject to environmental influences. Acquisition of language and the ability to link linguistic cognition to the plastic development of the brain provide a potentially powerful means of explaining the evolutionally explosive development of human cognition and culture. Schizophrenia, a disease that can be envisioned as representing a derangement of synaptic maturation, may provide an entry into the search for genes controlling the processes mediating the unprecedented development of Homo sapiens over the past 40,000 to 70,000 years. The recently completed mapping of the genome of the chimpanzee provides a new frame of reference that may speed the search. 相似文献