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広島大学大学院教育学研究科紀要. 第三部, 教育人間科学関連領域 51 号
2003-03-28 発行
空間的処理容量の個人差と三次元物体認識における視点依存性
Individual differences of spatial span and view-dependence in three-dimensional object recognition
近藤 武夫
Abstract
When we recognize three-dimensional (3-d) objects, we match two-dimensional (2-d) view on our retina and our internal representations. The representations are called ""canonical views"", which are preferred view and are judged to be the best view of an object by viewers (Palmer, Rosch, & Chase, 1981). It is known that our recognition performance on canonical views is best. On the contrary, our performance in the non-canonical views is inferior to that in the canonical views, so this performance is called ""view-dependence"". Moreover, it is known that large memory set size and high similarity (i.e., high cognitive load) cause view-dependence (Newell, 1998). This large memory set size and high similarity should be considered as cognitive load. And the cognitive load should also be dependent on individual differences in a spatial span, which reflects the capacity of mental transformation of internal representations. In this study, I examined whether individual differences in spatial span relate to view-dependence or not. According to the scoring of spatial span task (Shah & Miyake, 1996), ten subjects with high spatial span score and 10 subjects with low spatial span score were assigned to high and low spatial span groups, respectively. The result showed that only low spatial span group showed view-dependence in high cognitive load condition of 3-d object discrimination task. This suggested that individual difference in spatial span could be one of factors which affect the view-dependence in 3-d object recognition.
About This Article
著者キーワード
三次元物体認識
空間的処理容量
個人差
視点依存性
three-dimensional object recognition
spatial span
individual difference
view-dependence
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