| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Research Abstract |
We examined neuronal activities and their spike synchrony from deep layer in primary (M1) and secondary motor cortex (M2) of rats performing an operant behavioral task under a head-fixed condition. The operant behavioral task required the rats to pull a lever using their forelimb in response to a cue tone (external trials) or pull it spontaneously without the cue (internal trials) after waiting for at least one second. We found that synchronous activities are stable and little dependent on motor functions, and that different types of motor initiation are represented not as synchronous activities but as difference of firing rate, especially in M2. The changeability in synchronous activities was almost stochastic in population, suggesting the stability may enable a reliable motor execution.
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