2009 Fiscal Year Final Research Report
A comparative study on manipulations of body, object, and space images by human and nonhuman primates.
| Project/Area Number |
19330159
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | Nagoya University |
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Principal Investigator |
KAWAI Nobuyuki Nagoya University, 大学院・情報科学研究科, 准教授 (30335062)
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| Co-Investigator(Kenkyū-buntansha) |
MORIMURA Naruki 京都大学, 野生動物研究センター, 助教 (90396226)
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| Project Period (FY) |
2007 – 2009
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| Keywords | イメージ操作 / 霊長類 / 進化 / 身体 / 空間 |
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| Research Abstract |
So far, enormous number of studies have observed mental rotation phenomenon by humans, however almost all studies by non-human animals have failed to observe animals' mental rotation, that is regarded as a reflection of mental image manipulation. The present study assessed mental rotation phenomena by Japanese monkeys, chimpanzees, and humans. We hypothesized that non-primates might have performed symbolic matching-to-sample in the previous mental rotation studies. Then, we trained various angles of canonical letters as S+ as opposed to those of mirror letters (or vice versa) before the mental rotation task of matching-to-sample. As the results, the monkeys showed a linear increase of reaction times as function of rotated angles of a sample stimulus. We have also obtained substantial data with human subject from mental rotation experiments of body image and by means of EEG.
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