Takahiko Sudo

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We examined whether the vomeronasal organ (VNO) is the sole receptor for pheromonal cues for male sexual behavior. Males carrying surgical removal of the VNO (VNOx) mated with stimulus females as sham-operated males, with a comparable number of mounts but a prolonged latency for ejaculation. In sham-operated males, mating increased cFos immunoreactivity in(More)
Evaluation of marble burying behavior (MBB) housing-induced alteration of monoamine metabolism in mouse brain was performed by measuring metabolite levels with HPLC-ECD. Isolated housing of mice, each in a cage (22 x 32 x 14 cm; sawdust, 1-mm diameter; 5 cm in thickness) with 15 evenly spaced glass marbles on the floor (2.5-cm diameter; control, without(More)
In interactive evolutionary computation (IEC), each solution is evaluated by a human user. Usually the total number of examined solutions is very small. In some applications such as hearing aid design and music composition, only a single solution can be evaluated at a time by a human user. Moreover, accurate and precise numerical evaluation is difficult.(More)
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