| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2015: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2014: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2013: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
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| Outline of Final Research Achievements |
A prevailing model of the primate auditory cortex proposes a core-belt-parabelt structure. The lateral belt region in the model has three auditory areas, but this region has been mapped only at limited spatial resolution, and thus may contain more areas. Here we examined the auditory areas in the lateral belt region of the marmoset, using a high-resolution imaging technique. The three areas in the core region were readily identified from their tonotopy. Three known belt areas were also identified. Further, we found two novel areas; one was caudoventral to the core area R with a frequency gradient towards a ventrocaudal direction, and we named this area medial anteriolateral area (MAL); the other was a small area with no obvious tonotopy (NT), positioned lateral to MAL. Our results call for refinement of the current model of primate auditory cortex.
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