2011 Fiscal Year Final Research Report
Neural mechanism for temporal discrimination of visual and auditory sensory stimuli
| Project/Area Number |
21500376
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Neurophysiology and muscle physiology
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| Research Institution | Kinki University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Keywords | 認知 / 時間 / 大脳皮質 / 大脳基底核 / 神経細胞活動 |
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| Research Abstract |
To investigate neuronal mechanism for interval timing, especially for temporal discrimination of sensory stimuli with different modality, we recorded neuronal activity from prefrontal cortex of animals performing a temporal discrimination task using visual and auditory stimuli. Many prefrontal neurons selectively responded to visual and auditory stimuli during stimulus presentation periods while a group of neurons represented relative duration for visual and auditory stimuli in a discrimination decision phase. These results suggest temporal information of visual and auditory stimuli is processed partially in different neuronal networks in prefrontal cortex.
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