2013 Fiscal Year Final Research Report
Higher order auditory neural activities underlying the perception of sound continuity
| Project/Area Number |
23700377
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Neuroscience in general
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| Research Institution | University of Yamanashi |
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Principal Investigator |
QIN Ling 山梨大学, 医学工学総合研究部, 准教授 (20432156)
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| Project Period (FY) |
2011 – 2013
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| Keywords | auditory cortex / sound discrimination / spike activity / perception / free moving / chronic recording |
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| Research Abstract |
Previous studies on the neural functions of auditory cortex were commonly conducted on anesthetized or strained animals. In the present study, we for the first time used free moving cats. Cats were trained to perform a Go/NoGo behaving task to discriminate continuous and interrupted sounds. We then implanted multiple-channel electrodes into the primary auditory cortex and high order auditory cortices, and recorded the neural activities during the cats performed the task. By analyzing the relation between neural activities and behavioral responses, we revealed the neural response patterns correlating to the discrimination between continuous and interrupted sounds. Furthermore, we recorded the neural activities in various brain areas as the cats were actively discriminating the sounds and passively listening to the same sounds. By comparing the neural responses under the two conditions, we revealed the effects of auditory attention on various brain areas.
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