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261.
Marjorie H. Charlop Patricia F. Kurtz Fran Greenberg Casey 《Journal of applied behavior analysis》1990,23(2):163-181
In a series of experiments, we assessed the efficacy of using autistic children's aberrant behaviors as reinforcers to increase their correct task responding. In Experiment 1, reinforcer conditions of stereotypy, food, and varied (food or stereotypy) were compared. In Experiment 2, the conditions were delayed echolalia, food, and varied (food or delayed echolalia), and in Experiment 3, perseverative behavior was compared with stereotypy and food as potential reinforcers. A multielement design was used for all comparisons, and side-effect measures were recorded during and after teaching sessions as well as at home. Results indicated that, in general, task performance was highest when brief opportunities to engage in aberrant behaviors were provided as reinforcers. Edibles were associated with the lowest performance. Furthermore, no negative side effects (e.g., an increase in aberrant behaviors) occurred. The results are discussed in terms of suggesting a more pragmatic treatment approach by addressing the contingent use of autistic children's aberrant behaviors as reinforcers. 相似文献
262.
Marjorie H. Charlop Laura Schreibman Marie Garrison Thibodeau 《Journal of applied behavior analysis》1985,18(2):155-166
One oft-cited problem with teaching speech skills to autistic children isthe failure of the speech to be spontaneous. That is, the children's speech often remains underthe control of the verbal behavior of others rather than underthe control of other nonverbal referents inthe environment. We investigatedthe effectiveness of a time delay procedure to increasethe spontaneous speech of seven autistic children. Initially, the experimenter presented a desired object (e.g., cookie) and immediately modeledthe appropriate response “I want (cookie).” Gradually, asthe child imitatedthe vocalization, the experimenter increasedthe time between presentation of the object andthe modeled vocalization in an attempt to transfer stimulus control of the child's vocalization fromthe experimenter's model tothe object. Results indicated that allthe children learned to request items spontaneously and generalized this behavior across settings, people, situations, and to objects which had not been taught. These results are discussed in relation tothe literature on spontaneous speech, prompting, and generalization. 相似文献
263.
Contextualism, a world view or paradigm which suggests the role of social, cultural, and historical change in individual development, became the focus of increasing interest throughout the 1970s. Nevertheless, despite the suggestion that contextualism offered a new philosophical position from which to derive concepts and theories of development, criticism occurred because it was believed that the dispersive nature of contextualism obviated the formulation of a useful definition of development. We review the characteristics of the contextual paradigm and argue for a principled integration (as opposed to an eclectic one) between selected features of contextualism and of organicism. The former approach offers a dispersive view of the nature of variables involved in development and the latter provides an integrative one. We attempt to forge a probabilistic epigenetic, or developmental-contextual, paradigm for the study of human development, one which relies on the concept of integrative levels and which conceives of the causal variables of development as interacting in a temporally probabilistic manner. 相似文献
264.
The World Health Organization WHOQOL-100: tests of the universality of Quality of Life in 15 different cultural groups worldwide. 总被引:15,自引:0,他引:15
The World Health Organization Quality of Life assessment (WHOQOL-100) was developed simultaneously across 15 international field centers and includes 24 facets relating to quality of life, which are grouped into 4 larger domains: physical, psychological, social relationships, and environment. It also includes 1 facet examining overall quality of life and general health perceptions. This article examines the extent to which the WHOQOL-100 assesses quality of life perceptions in different cultures and whether it is structurally comparable in these cultures. Regression analysis showed all 4 domains to be important in assessing quality of life in each of the 15 centers. Structural equation modeling suggested further support for the proposal that there are universal facets and domains that are cross-culturally important in determining quality of life and suggested that the ordering of facets within domains is comparable across cultures. 相似文献
265.
Leonard A. Jason Marjorie Berk Daniel L. Schnopp-Wyatt Bruce Talbot 《American journal of community psychology》1999,27(2):143-160
Smoking is the primary preventable cause of death, and yet 3,000 adolescents become smokers each day. Most adult smokers begin this deadly habit when they are under the age of 18, which is the minimum legal age for the purchase of cigarettes. The majority of adolescent smokers are able to purchase cigarettes even though laws prohibit the sale of cigarettes to minors. In the late 1980s, Woodridge, IL, became one of the first towns in the nation to demonstrate a significant reduction in the ability of youth to purchase cigarettes. Almost 2 years after passage of this legislation, the percentage of regular smokers among 7th- and 8th-grade students had been reduced from 16 to 5%. Seven-year follow-up data in a sample of high school youths indicate that youths living in communities with regular enforcement had significantly less smoking than those living in communities without regular enforcement. In particular, rates of regular smoking were 8.1% in communities with regular enforcement versus 15.5% in communities without regular enforcement. It is possible that adolescents who had restricted access to tobacco products were less likely to become regular smokers. These findings have important public health implications, particularly in light of recent federal legislation mandating that all states develop programs to reduce access of youth to tobacco products. 相似文献
266.
267.
A number of investigators have interpreted a tendency for depressed people to recall more negative than positive self-referent adjectives as evidence for a depressive self-schema made up of predominantly negative characterological information. We sought to confirm this account by eliciting the subjective self-perceptions of the depressed. Depressed patients and controls were required to rate whether or not a series of positive and negative adjectives applied to them during the previous week, at any time, and generally. The depressed distinguished clearly between these questions and, although describing themselves currently in largely negative terms, described their general state as equally composed of positive and negative elements. 相似文献
268.
Thomas J. Power 《Journal of abnormal child psychology》1992,20(6):579-593
The effect of contextual factors on continuous performance testing was examined by administering a vigilance task to 51 children with ADHD under conditions of examiner presence and absence at different times (i.e., beginning and middle) of an assessment battery. The results showed that the ability to differentiate target stimuli from distractors (d-prime) was related to examiner presence vs. absence, and that response bias (beta), a measure of the subject's carefulness in responding to stimuli, was associated with the time of task administration. The decline in d-prime under conditions of examiner absence was shown to be related more to level of aggression as opposed to level of inattention. Children with ADHD having relatively high levels of aggression demonstrated a significant decline in d-prime scores under conditions of examiner absence, but those with relatively low levels of aggression did not. The results demonstrated the importance of contextual factors on vigilance task performance and suggested a differential impact of contextual variables on children who are inattentive vs. aggressive. 相似文献
269.
Marjorie R. Leek Mary E. Brown Michael F. Dorman 《Attention, perception & psychophysics》1991,50(3):205-214
Informational masking is broadly defined as a degradation of auditory detection or discrimination of a signal embedded ina context of other similar sounds; it is not related to energetic masking caused by physical interactions between signal and masker. In this paper, we report a systematic release from informational masking of a target tone in anine-tone rapid auditory sequence as the target is increasingly isolated in frequency or intensity from the remaieining sequence components. Improved target-tone frequency difference limens as isolation increases are interpreted as a reflection of increasingly focused auditory attention. The change from diffuse to highly focused attention is gradual over the frequency and intensity ranges examined, with each 1-dB increment in target intensity relative to the remaining components producing performance improvements equivalent to those produced by a 2% increase in frequency isolation. The results are modeled as bands of attention in the frequency and intensity domains. For attention directed by frequency isolation, there is a strong correspondence with auditory filters predicted by the power spectrum model of masking. These data also support the existence of an attention band of intensity, with a bandwidth of about 5–7 dB at the moderate levels used in this experiment. 相似文献
270.
The effects of marital disharmony on prepubertal children 总被引:1,自引:0,他引:1
The study investigated the association between marital disharmony and childhood behavior problems in a sample of families drawn from a general population. Eighty-three families where the marital relationship had previously been rated as disharmonious were matched with an equivalent number of families where the marriage was rated harmonious. Mothers, fathers, and children were interviewed, using a semistructured interview format. Children living in disharmonious homes had significantly more problems than children from harmonious homes, and control for confounding variables, such as the mothers' mental health, did not alter this relationship. The main effects found were in antisocial symptomatology. Gender differences and differences according to the accounts of different respondents were found. One possible interpretation is that mothers perceived their sons as more affected by marital disharmony, while evidence from children suggested that boys and girls were equally affected. 相似文献