Proceedings of the Fuzzy System Symposium
38th Fuzzy System Symposium
Session ID : TB1-4
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Spatiotemporal Comparison by Use of EEG on Brain Activities During Tetrapod Image Recognition and Recalling Processes
*Takahiro YamanoiMika OtsukiHisashi ToyoshimaYuki Takakura
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Abstract

The right angular gyrus has been associated with visual attention toward distinctive features. One of the authors, Mika Otsuki, reported an example of a naming task using line drawing of fruit or animal for aphasia patients, and showed a difference in percentage of correct answer between "round things" and "not round things". In a continued study, some of the present authors had analyzed spatiotemporal human brain activities during the tetrapodal image recalling process by use of the equivalent current dipole source localization (ECDL) method, and found that activation of the right angular gyrus played an important role. Same as the previous study, the present authors had analyzed brain activities in image evoked recognition process of four animals, and compared the results between two processes, and found also the right angular gyrus played a role on shape discrimination between abnormal and normal (round), but the results are slightly different in subjects and images. And the authors also analyzed the single-trial electroencephalograms on the first image presentation of each image in order to verify whether comparison process with the memory involved.

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