| Budget Amount *help |
¥82,940,000 (Direct Cost: ¥63,800,000、Indirect Cost: ¥19,140,000)
Fiscal Year 2020: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2019: ¥14,560,000 (Direct Cost: ¥11,200,000、Indirect Cost: ¥3,360,000)
Fiscal Year 2018: ¥14,560,000 (Direct Cost: ¥11,200,000、Indirect Cost: ¥3,360,000)
Fiscal Year 2017: ¥14,560,000 (Direct Cost: ¥11,200,000、Indirect Cost: ¥3,360,000)
Fiscal Year 2016: ¥25,610,000 (Direct Cost: ¥19,700,000、Indirect Cost: ¥5,910,000)
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| Outline of Final Research Achievements |
We studied phonotaxis behavior of crickets as a model system and examined the relationship between auditory stimuli eliciting the phonotaxis and an evoked neural activity or behavioral outputs. We found that crickets do not localize immediately after receiving the calling song, but rather wander for a while before suddenly approached the sound source, and that this behavioral transition is caused by internal changes. We also succeeded in making the crickets to localize a sound source in a virtual space using a multisensory VR device, and found that visual cues were also used during the phonotaxis. Furthermore, we made intracellular recordings from the brain of crickets walking in an auditory VR environment and found that neurons projecting to the fan-shaped body of the central complex (P-FN) represent vector information that integrates the direction and magnitude of walking movements.
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