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141.
Jean E. Rhodes Ranjini Reddy Jean B. Grossman Judy Maxine Lee 《Journal of applied social psychology》2002,32(10):2114-2133
Despite the growth of youth mentoring programs in recent years, key questions remain regarding the relative importance of making matches on the basis of shared racial background. Both sides of the argument regarding racial matching are presented, followed by a comparison of the effects of same‐ vs. cross‐race matches involving minority youth (N= 476). Minority adolescents were less likely to report initiating alcohol when placed in cross‐race matches. In addition, minority boys in same‐race matches reported smaller decrements in scholastic competence and self‐worth than did minority boys in cross‐race matches. Minority girls in same‐race matches reported smaller decrements in school value and self‐worth than did minority girls in cross‐race matches. Youth, parent, and caseworker impressions of the 2 relationship types largely converged, but the few impressions that differed tended to favor cross‐race matches. The methodological limitations and implications of this study are discussed. 相似文献
142.
Dempster ( Dempster, 1995 ; Dempster & Corkill, 1999 ) proposed that developmental changes in performance on Piagetian tasks could be related to changes in inhibitory efficiency more than to logical development. In this study, the negative priming paradigm was adapted to the class inclusion task in order to investigate the role of inhibition and knowledge levels in the development of class inclusion. Participants were pre‐tested on two inclusion tasks, the standard Piagetian task and Markman's modification task, and assigned to different knowledge levels: empirical, and logical necessity. Children were then tested on a priming version of the class inclusion task. Results showed a negative priming effect, indicating that the irrelevant ‘subclass comparison strategy’ was actively inhibited during the processing of the class inclusion task. This effect was found to vary as a function of knowledge levels, indicating that the need for inhibition was reduced when children had attained logical necessity. 相似文献
143.
Jean Laplanche 《Forum der Psychoanalyse》2003,19(1):18-27
To say that human beings also have a self-preservation instinct just as animals is only meaningful in the sense of attachment and affection mediated by mutual communication. It is from the beginning covered up by the truly human sexual phenomena of seduction and narcissistic reciprocity. Beside that we have a sexual drive which has a more important, not to say, decisive role from birth until puberty. This latter is the subject of psychoanalysis because it is anchored in the unconscious. Finally, we also have an (innate, endogenic) sexual instinct which appears in puberty persisting the whole adult life and meets at its appearance the infantile sexual drive which was existing all the time. It is very difficult to give an epistemological definition of the (innate) sexual instinct because it does not manifest itself in a pure form, but only in unclear transactions with infantile sexuality dominating the unconscious. The subject of psychoanalysis is the unconscious and the unconscious is itself the sexuality sensu Freud, the pre-, para- or genital infantile sexuality. The sexual has its origins in the phantasy which is naturally anchored in our body. 相似文献
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Jean McConnell J. G. Quinn 《The Quarterly Journal of Experimental Psychology Section A: Human Experimental Psychology》2000,53(1):53-67
This paper uses the theoretical distinction that has recently developed between the passive visual store and the active spatial rehearsal mechanism of the visuo-spatial component of working memory (VSSP). It examines the circumstances under which visual fields gain functional access to the passive visual store and seeks to cast light on the circumstances under which irrelevant visual fields interfere with concurrent visual processing. Experiment 1 contrasts a dynamic visual noise field with a static noise field and shows that the static field, in contrast to the dynamic noise field, causes no interference when presented concurrently with a visual task. Experiment 2 investigates the reason for this contrast and concludes that the static field is susceptible to decay and so fails to cause interference. Experiment 3 investigates further the circumstances under which dynamic visual noise causes interference and shows that manipulation of the number of changes within the noise field is also of importance in causing interference. The results allow further consideration of the characteristics of the VSSP. 相似文献
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Louis P. Hagopian Wayne W. Fisher Michelle Thibault Sullivan Jean Acquisto Linda A. LeBlanc 《Journal of applied behavior analysis》1998,31(2):211-235
Functional communication training (FCT) is a frequently used treatment for reducing problem behavior exhibited by individuals with developmental disabilities. Once the operant function of problem behavior is identified by a functional analysis, the client is taught to emit an appropriate communicative response to obtain the reinforcer that is responsible for behavioral maintenance. Studies on FCT have typically used small numbers of participants, have reported primarily on clients for whom FCT was successful, and have varied with respect to their use of other treatment components. The main purposes of the present study were to evaluate the efficacy of FCT for treating severe problem behavior in a relatively large sample of individuals with mental retardation (N = 21) and to determine the contribution of extinction and punishment components to FCT treatment packages. FCT with extinction was effective in reducing problem behavior for the majority of clients and resulted in at least a 90% reduction in problem behavior in nearly half the applications. However, when demand or delay-to-reinforcement fading was added to FCT with extinction, treatment efficacy was reduced in about one half of the applications. FCT with punishment (both with and without fading) resulted in at least a 90% reduction in problem behavior for every case in which it was applied. 相似文献