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Marvin R. Lamb Betsy London Heather M. Pond & Kathryn A. Whitt 《Psychological science》1998,9(1):14-19
Targets are identified faster if they appear at the same level (global vs. local) as the target on the previous trial. This effect has been attributed to a controlled attentional process wherein participants attend to the level containing the target on trial n − 1, thus facilitating performance if target level repeats on trial n. An alternative explanation (Lamb & Yund, 1966) is that automatic activation of level-specific neural mechanisms is responsible. The controlled-process hypothesis predicts better performance whenever target level is predictable, because participants can anticipate, and thus attend to, the appropriate level. The automatic-process hypothesis predicts better performance when target level repeats, regardless of target-level predictability. In the present studies, level repetitions facilitated performance regardless of target-level predictability. The data support the automatic-process explanation of level repetition and other attentional effects. The data illustrate how an automatic process can give rise to performance that seems to reflect more cognitive or strategic mechanisms. 相似文献
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Guinea pigs were taught to lick an electronic lickometer by successive approximations brought about by a gradually receding lickerandum-liquid feeder mounted in their home cage. All Ss learned to lick and obtain their total liquid intake by tongue licking. An optimum deprivation schedule was determined, and the response was brought under schedule control comparable to that of the rat. 相似文献
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Milton D. Hakel Thomas D. Hollmann Marvin D. Dunnette 《Journal of counseling and development : JCD》1968,46(8):762-764
Forty-two years ago, Counts (1925) surveyed the social status of occupations and found a well-defined prestige order, with banker at the top and ditch digger at the bottom. Because of changes wrought by the depression and World War II, Deeg and Paterson (1947) repeated Counts' study and found only minor relative changes in social status. Because of the extensive social and cultural changes since World War II, Counts' study was repeated again, and again only minor relative changes in the social status of occupations were found. The prestige order of the occupations surveyed is remarkably stable. 相似文献
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Marvin Skolnick 《Group》2000,24(2-3):133-145
Much has been learned in the 20th century about the impact of covert group dynamics on the individual, the family and small group on the micro level and about institutions, communities, national and international process on a macro level. However, as we enter the new millennium this knowledge seems dwarfed by the burgeoning of knowledge about the brain and biological approaches to disturbed human behavior, casting a worrisome shadow on the future of dynamic group therapies. This article explores the impact of socio-economic-political forces on mental health delivery systems from the vantage point of group process and therapy, and raises questions about possible interventions to restore a balance between social dynamics and biology. 相似文献