論文 - 詳細
| RRC ID | 54510 |
|---|---|
| 著者 | Liu Y, Ohshiro T, Sakuragi S, Koizumi K, Mushiake H, Ishizuka T, Yawo H. |
| タイトル | Optogenetic study of the response interaction among multi-afferent inputs in the barrel cortex of rats. |
| ジャーナル | Sci Rep |
| Abstract |
We investigated the relationship between whisker mechanoreceptive inputs and the neural responses to optical stimulation in layer 2/upper 3 (L2/U3) of the barrel cortex using optogenetics since, ideally, we should investigate interactions among inputs with spatiotemporal acuity. Sixteen whisker points of a transgenic rat (W-TChR2V4), that expresses channelrhodopsin 2 (ChR2)-Venus conjugate (ChR2V) in the peripheral nerve endings surrounding the whisker follicles, were respectively connected one-by-one with 16 LED-coupled optical fibres, which illuminated the targets according to a certain pattern in order to evaluate interactions among the inputs in L2/U3. We found that the individual L2/U3 neurons frequently received excitatory inputs from multiple whiskers that were arrayed in a row. Although the interactions among major afferent inputs (MAIs) were negligible, negative interactions with the surrounding inputs suggest that the afferent inputs were integrated in the cortical networks to enhance the contrast of an array to its surroundings. With its simplicity, reproducibility and spatiotemporal acuity, the optogenetic approach would provide an alternative way to understand the principles of afferent integration in the cortex and should complement knowledge obtained by experiments using more natural stimulations. |
| 巻・号 | 9(1) |
| ページ | 3917 |
| 公開日 | 2019-3-8 |
| DOI | 10.1038/s41598-019-40688-2 |
| PII | 10.1038/s41598-019-40688-2 |
| PMID | 30850696 |
| PMC | PMC6408464 |
| MeSH | Animals Female Light Male Mechanoreceptors / cytology Mechanoreceptors / physiology Neurons, Afferent / cytology Neurons, Afferent / physiology Optogenetics / instrumentation Optogenetics / methods* Physical Stimulation Rats Rats, Transgenic Somatosensory Cortex / cytology Somatosensory Cortex / physiology* Vibrissae / innervation |
| IF | 4.011 |
| 引用数 | 0 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 4 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| ラット | W-Tg(Thy1-COP4/YFP*)4Jfhy (strainID=1072) |