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An experiment was conducted to determine the effect of manipulating S’s preparation for what he will see on a given trial on his ability to mentally keep track of the number of occurrences of each of several different stimuli in a sequence. It was found that, when the same stimuli were used from trial to trial, performance was significantly better than when different stimuli were used. Foreknowledge of the specific stimuli to be used on a given trial did little to improve performance per se, but it did reduce labeling errors. The results were discussed in terms of the “spatial window” model of keeping-track performance.  相似文献   
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This article attempts to provide guidelines for acceptable practice in thermal biofeedback training. Criteria are set forth in three major areas: the nature of the interaction between the experimenter/therapist and subject/patient, training procedures, and the physical characteristics of the temperature sensing and feedback system.  相似文献   
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Based on a general review of international, representative tissue banking policies that were described in the medical, ethics, and legal literature, this paper reviews the range of standards, both conceptually and in existing regulations, relevant to four main factors:(1) commercialization, (2) confidentiality, (3) informed consent, and (4) quality of research. These four factors were selected as reflective of some of the major ethical considerations that arise in the conduct of tissue banking research. The authors emphasize that any policy or ethical guidelines designed to regulate tissue bank research should address all four factors. Whenever this sort of research is conducted between several institutions or several countries, the paper suggests that the relevant entities work collaboratively to harmonize their standards.  相似文献   
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