Presentation | 2007-10-19 Analysis of postnatal development of responses in rat somatosensory cortex using slicon-multiprobe electrodes Koji IKEZOE, Hiroshi TAMURA, Fumitaka KIMURA, Ichiro FUJITA, |
---|---|
PDF Download Page | PDF download Page Link |
Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | We examined developmental change of responses to whisker deflections in rat primary somatosensory cortex between postnatal day 5 (P5) and 30 using multiple single-unit recording techniques with silicon-multi probes. Although functional connections from neurons in layer 4 to those in layer 2/3 were weak in rats before P18, layer 2/3 neurons responded to stimuli. The magnitude of responses in younger rats was larger than that in older rats. Trial-trial variations of responses magnitudes were correlated among neurons. This correlation was decreased with development. The results suggest that correlated activities among neurons contribute to sensory-experience dependent development of neural circuit. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | multi-neuron recording / cross-correlation analysis / whisker / barrel cortex / spike timing / trial-to-trial variability |
Paper # | NC2007-49 |
Date of Issue |
Conference Information | |
Committee | NC |
---|---|
Conference Date | 2007/10/11(1days) |
Place (in Japanese) | (See Japanese page) |
Place (in English) | |
Topics (in Japanese) | (See Japanese page) |
Topics (in English) | |
Chair | |
Vice Chair | |
Secretary | |
Assistant |
Paper Information | |
Registration To | Neurocomputing (NC) |
---|---|
Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Analysis of postnatal development of responses in rat somatosensory cortex using slicon-multiprobe electrodes |
Sub Title (in English) | |
Keyword(1) | multi-neuron recording |
Keyword(2) | cross-correlation analysis |
Keyword(3) | whisker |
Keyword(4) | barrel cortex |
Keyword(5) | spike timing |
Keyword(6) | trial-to-trial variability |
1st Author's Name | Koji IKEZOE |
1st Author's Affiliation | Graduate School of Engineering Science and Graduate School of Frontier Biosciences, Osaka University() |
2nd Author's Name | Hiroshi TAMURA |
2nd Author's Affiliation | Graduate School of Engineering Science and Graduate School of Frontier Biosciences, Osaka University:Core Research for Evolutional Science and Technology, Japan Science and Technology Agency |
3rd Author's Name | Fumitaka KIMURA |
3rd Author's Affiliation | Department of Neuroscience, Graduate School of Medicine, Osaka University |
4th Author's Name | Ichiro FUJITA |
4th Author's Affiliation | Graduate School of Engineering Science and Graduate School of Frontier Biosciences, Osaka University:Core Research for Evolutional Science and Technology, Japan Science and Technology Agency |
Date | 2007-10-19 |
Paper # | NC2007-49 |
Volume (vol) | vol.107 |
Number (no) | 263 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |