期刊
COGNITIVE PSYCHOLOGY
卷 59, 期 2, 页码 154-179出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.cogpsych.2009.03.001
关键词
Event perception; Perception of animacy; Intention; Goal-directed behavior; Chasing
Psychologists have long been captivated by the perception of animacy-the fact that even simple moving shapes may appear to engage in animate, intentional, and goal-directed movements. Here we report several new types of studies of a particularly salient form of perceived animacy: chasing, in which one shape (the 'wolf) pursues another shape ('the sheep'). We first demonstrate two new cues to perceived chasing - chasing subtlety (the degree to which the wolf deviates from perfectly 'heat-seeking' pursuit) and directionality (whether and how the shapes 'face' each other). We then use these cues to show how it is possible to assess the objective accuracy of such percepts, and to distinguish the immediate perception of chasing from those more subtle (but nevertheless real) types of 'stalking' that cannot be readily perceived. We also report several methodological advances. Previous studies of the perception of animacy have faced two major challenges: (a) it is difficult to measure perceived animacy with quantitative precision; and (b) task demands make it difficult to distinguish perception from higher-level inferences about animacy. We show how these challenges can be met, at least in our case study of perceived chasing, via tasks based on dynamic visual search (the Find-the-Chase task) and a new type of interactive display (the Don't-Get-Caught! task). (C) 2009 Elsevier Inc. All rights reserved.
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