Analysis of mouse higher-order visual cortex by differential imaging

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It became possible to separate and to identify mouse's several higher-order visual areas by the combination with the pattern stimulus having different speed with flavin fluorescent imaging. Therefore the high order visual areas which were difficult to study until that time were observed. The properties of neurons in each area were different in the directional selectivity and the preferred stimulation speed. The property was disturbed in the animal that had bred under the flash light condition. Moreover, the anatomical combinations of each region were observed using with neural traser. Finally, abnormality was discovered in the property of the higher-order visual areas in the knockout mouse of cell-adhesion molecule CNR.