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[Vol.21 No.3 contents]
Japanese/English
Full Text of this Articlein Japanese PDF (63K) |
| ArticleTitle | Naming, pantomiming, and verb generation in response to seen objects: Error pattern analysis from normal subjects |
| Language | J |
| AuthorList | Mutsutaka Kobayakawa1)3), Satoshi Mochizuki2), Hiroko Mochizuki-Kawai3)4), Mitsuru Kawamura4) |
| Affiliation |
1) Graduate School of Human and Environmental Studies, Kyoto University 2) Institute of Psychology, University of Tsukuba 3) Japan Society for the Promotion of Science 4) Department of Neurology, Showa University School of Medicine |
| Publication | Japanese Journal of Neuropsychology: 21 (3), 215-221, 2005 |
| Received | Aug 20, 2004 |
| Accepted | Nov 22, 2004 |
| Abstract |
Neuropsychological studies have demonstrated that the production of a noun (naming), an action (pantomiming), or a verb to visually presented objects can be dissociated. In order to investigate the qualitative response difference, we investigated the error patterns of responses from normal subjects. In the experiment, a line drawing of a manipulable object was presented. Subjects then had to make a response within 450msec. The response was either naming (Naming condition), pantomiming (Action condition), or verb generation (Verb condition). The subject's errors were classified into four categories: visual error, semantic error, visual-semantic error, and other error. The observed error pattern was compared among these conditions. The results showed that subjects showed semantic errors in the Naming condition more often than in other conditions. On the other hand, visual errors were most observed in the Action condition. In the Verb condition, there was no significant difference between visual and semantic errors. The proportion of visual-semantic errors did not differ in each condition. Correlational analysis revealed that image agreement and manipulability are related to performance of all three conditions. These results suggested that shared and multiple components (i.e. semantic memory and visuomotor transformation) were involved in the recognition of manipulable objects. The sensorimotor component might be more activated in pantomiming, while semantic knowledge might be required in naming. Verb generation could equally require sensorimotor information and semantic knowledge. |
| Keywords | naming, action production, verb generation, error analysis, manipulable objects |
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