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241.
Lawson C 《Ethics & behavior》1995,5(3):205-215
In this article, I present a contractualist conception of human-participant research ethics, arguing that the most appropriate source of the rights and responsibilities of researcher and participant is the contractual understanding between them. This conception appears to explain many of the more fundamental ethical incidents of human-participant research. I argue that a system of contractual rights and responsibilities would allow a great deal of research that has often been felt to be ethically problematic, such as research involving deception, concealed research, and research on dependent populations. However, in defining the conditions under which such research should be permissible, my contractualist theory also makes it clear that there are limits -- and explains what those limits are -- to the propriety of such research. 相似文献
242.
The presentation of a nontarget stimulus to one fingerpad interferes with the identification of a target stimulus presented to a second fingerpad. This interference has been attributed to a failure of selective attention and, more specifically, to the nontarget’s eliciting a competing response. In the present study, the temporal interval between the target and nontarget was varied to determine the extent to which a nontarget primes a competing response. The results showed more interference when the nontarget was presented after the target than when it was presented before the target. Although still consistent with a response-competition explanation, this result offered no support for a priming explanation. The function relating the amount of interference to the temporal separation between the target and nontarget was similar to the functions obtained in studies of temporal masking, and this prompted a second experiment in which temporal masking was examined. These results, obtained with stimuli presented to the same fingerpad, indicate that response competition may be a major factor in temporal masking and that similar processes are involved in temporal masking and selective attention. 相似文献
243.
James C. Craig 《Attention, perception & psychophysics》1995,57(8):1190-1200
When two tactile patterns, a target and a nontarget pattern, are presented in close temporal proximity to the same location, the nontarget pattern may interfere with the identification of the target. A series of experiments examined the extent to which the interference in target identification results from masking (interference in the representation of the target at an early stage of processing) or from response competition. A response competition view of pattern perception holds that both the target and nontarget are fully processed to the level of evoking responses. Interference is produced when subjects select the nontarget rather than the target. This view was tested with a paradigm developed in studies of selective attention. Pairs of tactile patterns were presented to subjects’ left index fingerpads. The amount of interference produced by a nontarget that is physically different from a target depends on whether the nontarget is associated with the same response as the target or a different response. The amount of masking also depends on the set of target and nontarget patterns that are used. The results support the conclusion that subjects have available a representation of both the target and the nontarget and that a substantial portion of the interference previously attributed to masking may be due to response competition. 相似文献
244.
William Lane Craig 《Heythrop Journal》1997,38(2):165-171
A promising argument for divine timelessness is that temporal life is possessed only moment by moment, which is incompatible with the existence of a perfect being.
Since the argument is based on the experience of time's passage, it cannot be circumvented by appeal to a tenseless theory of time.
Neither can the argument be subverted by appeals to a temporal deity's possession of a specious present of infinite duration.
Nonetheless, because the argument concerns one's experience of time's passage rather than the objective reality of temporal becoming itself, it is considerably weakened by the fact that an omniscient being possessing perfect memory and foreknowledge, need not find such experience to be an imperfection. 相似文献
Since the argument is based on the experience of time's passage, it cannot be circumvented by appeal to a tenseless theory of time.
Neither can the argument be subverted by appeals to a temporal deity's possession of a specious present of infinite duration.
Nonetheless, because the argument concerns one's experience of time's passage rather than the objective reality of temporal becoming itself, it is considerably weakened by the fact that an omniscient being possessing perfect memory and foreknowledge, need not find such experience to be an imperfection. 相似文献
245.
The growing interest in dual-inheritance models of human evolution has focused attention on culture as a means by which ancestors transmitted acquired phenotypic characteristics to their descendants. The ability of cultural behaviors to be repeatedly transmitted from ancestors to descendants enables individuals to influence their descendant-leaving success over many more generations than are usually coclusive fitness. This essay proposes that traditional stories, or myths, can be seen as a way in which ancestors influence their descendant-leaving success by influencing the behavior of many generations of their descendants. The myth of Oedipus is used as an example of a traditional story aimed at promoting proper behavior and cooperation among kin. This interpretation of the Oedipus myth is contrasted with Freudian and structuralist interpretations. 相似文献
246.
Reaction time measures of feature saliency in schematic faces 总被引:1,自引:0,他引:1
Two separate paradigms utilizing measurements of reaction time were employed to study facial feature saliency in schematic line drawn faces. In the first paradigm the speed of response to the omission of different facial components was measured, and in the second, the speed of response to feature substitution was measured. In both paradigms the facial features were presented in a random temporal sequence in order to minimise preferential scanning strategies. The two separate paradigms reflected the feature hierarchy most commonly found in the literature, ie the outline and eyes are more salient than the nose and mouth in terms of both speed of processing and error rate. In a third study the feature substitution paradigm was used to investigate the effects of feature saliency on the perception of emotional faces. The results suggest a change in the eyes/mouth hierarchy so that the mouth becomes the most salient feature in the surprised, happy, and sad target faces. This reverse in hierarchy, however, was not evident with the angry target face. These results are discussed in terms of changes in the focus of 'attention' and/or changes in 'processing efficiency'. 相似文献
247.
Gerald Matthews Kieran Coyle Angus Craig 《Journal of psychopathology and behavioral assessment》1990,12(1):49-65
Use of the Cognitive Failures Questionnaire (CFQ) in clinical research assumes that the questionnaire measures a single factor. A factor analysis of the CFQ was performed, on a sample of 475 students, using accurate procedures for determining the number of factors. These procedures gave mutually inconsistent results: at least two alternative factor structures can be extracted from the CFQ. An interpretable seven factor solution was found, but the CFQ probably has insufficient items to measure more than two strongly defined factors. The capacity of CFQ multiple factors to predict measures related to stress vulnerability was tested in a further study (N=57). Correlations between CFQ total score and neuroticism and use of coping strategies appeared to depend mainly on a single CFQ multiple factor, related to failures of concentration. Some of the other CFQ factors predicted other criteria. Further research on multiple factors of cognitive failure might improve the validity of the CFQ as a predictor of stress vulnerability and of cognitive performance. 相似文献
248.
Study of the sex ratio of mortality rates among three categories of long-term psychiatric inpatients suggests a trend toward equalization of death rates between the sexes by specific cause of death, given the constant inpatient environment. The most dramatic example of this equalization was the virtual parity of death rates for ischemic heart disease among younger schizophrenic patients of both sexes in contrast to a three- to fourfold male excess in the general population. An exception to this equalization was seen for neoplasm deaths, which showed a female excess in all three patient groups in contrast to the male excess seen in the general population. Further study of chronically hospitalized psychiatric patients seems indicated to delineate patterns of death associated with biologic variation in a relatively constant environment. 相似文献
249.
A circuit that interfaces an Osborne I microcomputer to a capacitance-operated subject touch panel is described 相似文献
250.
Craig A Anderson 《Journal of experimental social psychology》1983,19(2):93-108
The perseverance effect—the finding that people cling to their initial beliefs more strongly than appears warranted—has been demonstrated in a wide variety of settings. The existing explanation of the effect implies that beliefs based on concrete data should be more resistant to challenges than beliefs based on abstract data. The present studies compared the amount of belief perseverance when the beliefs were initially based on either abstract or concrete data. Subjects examined either two case histories (concrete data) or a statistical summary (abstract data) suggestive of either a positive or a negative relationship between fire fighter trainees' level of preference for high risk and their subsequent success as firefighters. These data sets were equated for the initial strength of beliefs they induced. Subjects were the thoroughly debriefed about the fictitious nature of their initial data. Subsequent assessments of subjects' personal beliefs about the true relationship revealed (a) significant levels of theory perseverance both immediately and 1 week later; (b) significantly more perseverance in the concrete data conditions, both immediately and 1 week later. Experiment 2 revealed that subjects frequently engage in causal processing spontaneously, especially when examining concrete data. Overall, the data suggested that memory for initial data did not contribute to the abstract/concrete effects, but that the generation of general, causal explanations did contribute to the stronger perseverance of theories in the concrete conditions. 相似文献