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Vaughn E. Stimbert James R. Frazier Harold R. Keller F. J. King 《Journal of School Psychology》1968,6(4):246-249
The effect of three reinforcement conditions was determined with respect to the learning and retention of a commercially available program purporting to teach simple nouns. The addition of candy reward to a novel method of presenting knowledge of results produced no change in performance when given on a continuous schedule, but reduced rate of responding when given on a partial schedule, i.e., only terninal frames. 相似文献
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Two patients with pure alexia were studied with tachistoscopically presented stimuli to examine factors influencing their ability to distinguish words from nonwords and to derive semantic information at exposures too brief for explicit letter identification. Both patients had profound right hemianopia and computerized tomography (CT) evidence of splenial destruction. Both patients were successful in making word/nonword decisions for high-frequency, but not low-frequency, words. They could judge semantic class membership reliably for such common categories as animals and vegetables, but not for arbitrarily selected categories, such as office-related items. Judgments about the gender of people's names and place versus person name distinctions were made with high reliability. Results are interpreted as evidence for limited word recognition and semantic-processing capacity in the right hemisphere. 相似文献
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Franco-Watkins AM Pashler H Rickard TC 《Journal of experimental psychology. Learning, memory, and cognition》2006,32(2):443-7; discussion 448-50
Previous research by J. M. Hinson, T. L. Jameson, and P. Whitney (2003) demonstrated that a secondary task in a delayed discounting paradigm increased subjects' preference for the immediate reward. J. M. Hinson et al. interpreted their findings as evidence that working memory load results in greater impulsivity. The present authors conducted a reanalysis of the data from J. M. Hinson et al.'s Experiment 1 at the individual-subject level. Difference scores were calculated by subtracting the digit memory load condition from the control condition for k (discounting parameter) and a measure of "erroneous" responses. The results indicated that the secondary task increased random responding, which in turn can account for the increased mean estimates of k. Thus, the data do not support the claim that cognitive load affects impulsivity per se. 相似文献