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Chihak BJ Plumert JM Ziemer CJ Babu S Grechkin T Cremer JF Kearney JK 《Journal of experimental psychology. Human perception and performance》2010,36(6):1535-1552
Two experiments examined how 10- and 12-year-old children and adults intercept moving gaps while bicycling in an immersive virtual environment. Participants rode an actual bicycle along a virtual roadway. At 12 test intersections, participants attempted to pass through a gap between 2 moving, car-sized blocks without stopping. The blocks were timed such that it was sometimes necessary for participants to adjust their speed in order to pass through the gap. We manipulated available visual information by presenting the target blocks in isolation in Experiment 1 and in streams of blocks in Experiment 2. In both experiments, adults had more time to spare than did children. Both groups had more time to spare when they were required to slow down than when they were required to speed up. Participants' behavior revealed a multistage interception strategy that cannot be explained by the use of a monotonic control law such as the constant bearing angle strategy. The General Discussion section focuses on possible sources of changes in perception-action coupling over development and on task-specific constraints that could underlie the observed interception strategy. 相似文献
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The author conducts a comparative analysis of the Russian Revolution developed by two prominent social-political thinkers of Germany and Russia in the early twentieth century—Max Weber and Peter Struve. The article focuses on their respective interpretations of the causes, course, and consequences of the Revolution as determined by their political ideals, i.e. a specific combination of nationalism and liberalism. The author pays special attention to Weber’s and Struve’s perception of the Russian Revolution, which, albeit for different reasons, was rejected by both thinkers.
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