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11.
Lars Nyberg Ulrich Olofsson John M. Gardiner Lars-Göran Nilsson 《Psychological research》1997,59(4):231-239
The purpose of this study was to assess retrieval strategy in incidental, intentional, and inclusion tests with word-fragment cues following a levels-of-processing manipulation at study. The results of Exp. 1 showed small levels-of-processing effects in incidental tests, and most subjects reported involuntary rather than voluntary retrieval of study-list words. In an intentional test, although levels of processing had a much greater effect, quite a few subjects also reported involuntary rather than voluntary retrieval of study-list words, and these subjects showed a smaller effect of levels of processing than subjects reporting voluntary retrieval. These results suggest that subjects given instructions for both voluntary and involuntary retrieval of study-list words in an inclusion test might not in fact attempt voluntary retrieval at all, but simply adopt an involuntary retrieval strategy. The results of Exp. 2 provided evidence to support this suggestion. The general implication is that where test contamination refers to subjects' failure to use retrieval strategies in accordance with test instructions, inclusion tests can be contaminated, as well as incidental or intentional tests, and that it is always necessary to obtain converging evidence about the actual strategies subjects use. 相似文献
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Three experiments employing the McCollough paradigm were conducted to determine the spatial-frequency content of visual imagery. In Experiment 1, large and reliable pattern-contingent color aftereffects were obtained after adaptation to visual imagery. The direction of the aftereffects indicated that subjects were adapting to higher spatial frequencies in their imagery. These results contrast with the data of Experiment 2, which demonstrate that color aftereffects obtained with adaptation to physically present stimuli are mediated by the fundamental spatial frequency components. The magnitude of the imagery-induced aftereffects in Experiment 1 equaled the magnitude of the externally induced aftereffects obtained in Experiment 2 with the same subjects. By blurring the to-be-imaged patterns (Experiment 3), the fundamental Fourier components became the salient perceptual features of the stimuli, and the direction of the imagery-induced aftereffects was reversed from that of Experiment 1, indicating that the spatial frequency content of the imagery had changed from higher to lower frequencies. Under normal viewing conditions, subjects use the higher spatial frequencies associated with the perceptually salient edges of stimuli to construct their images. The results of Experiments 1 and 3 are discussed in light of a current controversy over the nature of information representation in imagery, and it is concluded that support has been obtained for the analog model of visual imagery. 相似文献
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This paper examines the effect of parental attachment and supervision on fear of crime among adolescent males. Earlier work has suggested that feelings of powerlessness and association with deviant peers have a significant impact on adolescent fear of crime. As the nature of the parent-adolescent relationship is also a key predictor of adolescent self-concept and quality of peer relationships, we felt that parental attachment and supervision should also impact fear of crime. Using self-report surveys from 318 incarcerated adolescent males, we examine the effect of parental attachment and supervision, along with other demographic and contextual variables, on fear of criminal victimization, perceived safety, and perceptions of risk. The results indicate that those boys who are most attached to their parents are less fearful of criminal victimization and feel safer in their environment than do their counterparts with weaker parental attachments. Additionally, those boys whose parents supervise them closely are more fearful of criminal victimization, but have lower levels of perceived risk of victimization. Implications and ramifications for social policies and future research are also discussed. 相似文献
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Path integration while ignoring irrelevant movement 总被引:5,自引:0,他引:5
May M Klatzky RL 《Journal of experimental psychology. Learning, memory, and cognition》2000,26(1):169-186
Participants attempted to return to the origin of travel after following an outbound path by locomotion on foot (Experiments 1-3) or in a virtual visual environment (Experiment 4). Critical conditions interrupted the outbound path with verbal distraction or irrelevant, to-be-ignored movements. Irrelevant movement, real or virtual, had greater effects than verbal or cognitive distraction, indicating inability to ignore displacement during path integration. Effects of the irrelevant movement's direction (backward vs. rightward) and location (1st vs. 2nd leg of path) indicated that participants encoded a configural representation of the pathway and then cognitively compensated for the movement, producing errors directly related to the demands of compensation. An encoding-error model fit to the data indicated that backward movement produced downward rescaling, whereas movement that led to implied rotation (rightward on 2nd leg) produced distortions of shape and scale. 相似文献
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