2012 Fiscal Year Final Research Report
A Comparative Study on Categorization Using Visual Search Tasks
| Project/Area Number |
22530788
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Experimental psychology
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| Research Institution | Chiba University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
USHITANI Tomokazu 千葉大学, 文学部, 准教授 (20400806)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 学習・行動分析 / 比較心理学 |
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| Research Abstract |
The present study investigated visual search in pigeons, using an artificial category created by morphing of human faces. Search performances in one task in which pigeons were required to search for category members (targets) among category-unspecified nonmembers (distractors) were compared with those in another task where the roles of the targets and of the distractors were reversed. A series of experiments revealed facilitative effects of categorization on search efficiency, transfer of efficient search to novel stimuli, typicality effect of category exemplars, development of automatic processing by practice, and search asymmetry. Perceptual and cognitive mechanisms were discussed in the context of visual search and categorization theories.
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