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31.
We examined the effect of a teaching method on skill fluency and on‐task endurance of a 9‐year‐old boy who had been diagnosed with attention deficit hyperactivity disorder. An academic task that occurred at low fluency during 10‐min baseline sessions was taught to fluency. When responding was not yet fluent, brief reversals to baseline showed that the learner's rate of responding decreased and that he did not spend entire sessions on task. However, once a fluency goal had been reached, responding remained fluent and he remained on task in the third reversal condition. 相似文献
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Maxson J. McDowell 《The Journal of analytical psychology》2001,46(4):637-654
The personality is a dynamic system. Like all other dynamic systems, it must be self-organized. In this paper I focus upon the archetype-as-such, that is, upon the essential core around which both an archetypical image and a complex are organized. I argue that an archetype-as-such is a pre-existing principle of organization. Within the personality that principle manifests itself as a psychological vortex (a complex) into which we are drawn. The vortex is impersonal. We mediate it through myths and rituals or through consciousness. In this paper I show that Jung's intuition about the archetype-as-such is supported by recent science. I evaluate other concepts of the archetype. My concept is different from that proposed recently by Saunders and Skar. My concept allows each archetype-as-such to be defined precisely in mathematical terms. It suggests a new interpretation of mythology. It also addresses our spiritual experience of an archetype. Because the archetypes-as-such are fundamental to the personality, the better we understand them the better we understand our patients. The paper is grounded with clinical examples. 相似文献
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McDowell’s evolutionary theory of behavior dynamics (McDowell, 2004) instantiates populations of behaviors (abstractly represented by integers) that evolve under the selection pressure of the environment in the form of positive reinforcement. Each generation gives rise to the next via low‐level Darwinian processes of selection, recombination, and mutation. The emergent patterns can be analyzed and compared to those produced by biological organisms. The purpose of this project was to explore the effects of high mutation rates on behavioral variability in environments that arranged different reinforcer rates and magnitudes. Behavioral variability increased with the rate of mutation. High reinforcer rates and magnitudes reduced these effects; low reinforcer rates and magnitudes augmented them. These results are in agreement with live‐organism research on behavioral variability. Various combinations of mutation rates, reinforcer rates, and reinforcer magnitudes produced similar high‐level outcomes (equifinality). These findings suggest that the independent variables that describe an experimental condition interact; that is, they do not influence behavior independently. These conclusions have implications for the interpretation of high levels of variability, mathematical undermatching, and the matching theory. The last part of the discussion centers on a potential biological counterpart for the rate of mutation, namely spontaneous fluctuations in the brain's default mode network. 相似文献
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Evaluating the efficacy of the Headsprout© reading program with children who have spent time in care 下载免费PDF全文
This study investigated whether Headsprout©, an internet‐based phonics program designed on behavioral principles, is an effective supplementary tool to improve literacy skills of children who have spent time in care and are at risk of reading failure. Participants were 8 children (aged 5 to 10) who had spent over 3 years in care and were fully adopted at the time of the study. Participants' literacy skills were assessed prior to intervention using 2 standardized reading attainment tests. Participants were then randomly assigned to either treatment or a waiting list comparison group. There were 2 Headsprout© treatments, but all participants in the treatment group completed 1 HeadsproutStartCopTextStartCopText© lesson 4 times per week, under the supervision of the first author, while participants in the comparison group interacted with the first author 4 times per week engaging in nonliteracy‐based computer activities. Results from 2 standardized reading attainment tests showed an improvement in word recognition age and oral reading fluency for the HeadsproutStartCopTextStartCopText© learners but scores either remained the same or decreased over a 4‐month period for participants in the comparison group. The findings support the wider use of HeadsproutStartCopTextStartCopText© with at‐risk children though more research is clearly warranted at this time. 相似文献
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J. J McDowell Marcia L. Caron Saule Kulubekova John P. Berg 《Journal of the experimental analysis of behavior》2008,90(3):387-403
Virtual organisms animated by a computational theory of selection by consequences responded on symmetrical and asymmetrical concurrent schedules of reinforcement. The theory instantiated Darwinian principles of selection, reproduction, and mutation such that a population of potential behaviors evolved under the selection pressure exerted by reinforcement from the environment. The virtual organisms' steady‐state behavior was well described by the power function matching equation, and the parameters of the equation behaved in ways that were consistent with findings from experiments with live organisms. Together with previous research on single‐alternative schedules (McDowell, 2004; McDowell & Caron, 2007) these results indicate that the equations of matching theory are emergent properties of the evolutionary dynamics of selection by consequences. 相似文献
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John C. McDowell 《International Journal of Systematic Theology》2002,4(3):319-335
Often a source of concern to commentators about the adequacy of Barth's theology is his treatment of evil, in particular Church Dogmatics III/3 §50 with its depiction of evil as das Nichtige (the nothingness). Against the impression that Barth has little time in his systematic theology for doing justice to evil it is worth attempting a reading that indicates the importance of this section and what it seems that Barth is doing with it. Das Nichtige belongs to a conflictual and dramatic account, and talk of its, for Barth, 'absurd'existence' belongs there. The dramatic flavour of this discussion further impresses that there is more to be said about 'Barth on evil' than any focus on the paradoxical and negative language used to depict it could express – this 'more' should come specifically through ethics. 相似文献