| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
Two blindsight model monkeys, whose primary visual cortex (V1) was removed unilaterally, were used in this study. For the pathway specific blockade of the superior colliculus (SC) to pulvinar pathway, the retrograde vector was injected into the pulvinar and the anterograde vector was injected into the SC. After the vector injections, doxycycline (Dox) was administrated to block the synaptic transmission of the double infected SC neuron, which projected to the pulvinar. The performance of the visually guided saccade task in the affected visual field of V1 lesion was significantly decreased during the Dox administration period than the performance before Dox administration in two monkeys. These results suggest that the SC to pulvinar pathway at least partly mediates the visual information signal for the blindsight.
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