| Budget Amount *help |
¥88,270,000 (Direct Cost: ¥67,900,000、Indirect Cost: ¥20,370,000)
Fiscal Year 2014: ¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2013: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
Fiscal Year 2012: ¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2011: ¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2010: ¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
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| Outline of Final Research Achievements |
The posterior parietal cortex (PPC) is a part of the higher visual cortices in the dorsal pathway. We found that PPC was responsible for the integration of spatial information obtained from the eyes and whiskers in mice. PPC was also responsible for short-term memory of visual spatial information. In contrast, higher visual cortices in the ventral pathway were responsible for short-term memory of shape information, and for the integration of visual and auditory information. These functions were dependent on clustered protocadherin alpha, neuro-specific cell adhesion molecules. It is suggested that common neural circuits, dependent on clustered protocadherins, work as short-term memory circuits to achieve these functions. The sensory information, kept as sustained neural activities in the circuits, is likely to induce related neural activities in the wide brain areas connected with higher visual cortices. The activity complex may be regarded as the neural correlate of visual awareness.
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