Horizontal Propagation of Excitation in Rat Visual Cortical Slices Revealed by Optical Imaging
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- Manabu Tanifuji
- Department of Information Science, Fukui University, Bunkyo, Fukui 910, Japan
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- Takeshi Sugiyama
- Department of Information Science, Fukui University, Bunkyo, Fukui 910, Japan
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- Kazuyuki Murase
- Department of Information Science, Fukui University, Bunkyo, Fukui 910, Japan
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説明
<jats:p>Optical imaging with high spatial and temporal resolution of neural activity in rat cortical slices was used to investigate the dynamics of signal transmission through neural connections in the visual cortex. When inhibition due to γ-aminobutyric acid was slightly suppressed, horizontal propagation of excitation in both the supra- and infragranular layers became prominent. This propagation was not affected by vertical cuts in either the supra- or infragranular layer, which suggests that excitation is at least partially conveyed horizontally by reciprocal vertical connections between neurons in these layers.</jats:p>
収録刊行物
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- Science
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Science 266 (5187), 1057-1059, 1994-11-11
American Association for the Advancement of Science (AAAS)
