Global and local visual processing by chimpanzees (Pan troglodytes)(Summary of Awarded Presentation at the 25th Annual Meeting)

• MATSUNO Toyomi

  Primate Research Institute, Kyoto University:Japan Society for the Promotion of science

• TOMONAGA Masaki

  Primate Research Institute, Kyoto University

抄録

Two experiments investigated the visual processing of hierarchical stimuli by chimpanzees. Using a delayed matching-to-sample (DMTS) task, five chimpanzees were tested for their perceptual dominance of global or local information in hierarchically designed figures which consisted of global configurations and local elements. The results of the first experiment displayed individual differences in global-local processing of the figures. Two of the chimpanzees exhibited a advantage for local level processing and the others exhibited an advantage for processing global shape. The results of the second experiment revealed that manipulation of the density of local elements affected the performance of the three chimpanzees who had global precedence but did not affect the performance of the other two chimpanzees who had local precedence. These results suggest that a precedence for global or local visual processing in chimpanzees is not determined a priori but depends on strategies which are learned individually to solve a given task.

収録刊行物

• 基礎心理学研究

  基礎心理学研究 25 (2), 281-282, 2007

  日本基礎心理学会

キーワード

• hierarchical stimuli
• globa-local processing
• chimpanzees

詳細情報

• CRID: 1390282680735990784
• NII論文ID: 110006242633
• DOI: 10.14947/psychono.kj00004574166
• ISSN: 21887977
• ISSN: 02877651
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可