論文

査読有り
2015年8月

Excitatory connections of nonspiking interneurones in the terminal abdominal ganglion of the crayfish.

J Comp Physiol A Neuroethol Sens Neural Behav Physiol.
  • Namba Hisaaki
  • ,
  • Nagayama Toshiki

201
8
開始ページ
773
終了ページ
781
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1007/s00359-015-1017-4

The output effects of the nonspiking interneurones in the crayfish terminal<br />
abdominal ganglion upon the uropod motor neurones were characterized using<br />
simultaneous intracellular recordings. Inhibitory interactions from nonspiking<br />
interneurones to the uropod motor neurones were one-way and chemically mediated. <br />
The depolarization of the motor neurones with current injection increased the<br />
amplitude of the nonspiking interneurone-mediated hyperpolarization, while<br />
hyperpolarization of the motor neurone decreased it. By contrast, excitatory<br />
interactions from the nonspiking interneurones to the motor neurones were not<br />
mediated via chemical synaptic transmissions. These excitatory connections with<br />
the slow motor neurones were one-way while connections with fast motor neurones<br />
were bidirectional. Nonspiking interneurone-mediated membrane depolarization of<br />
the motor neurones was not affected by the passage of hyperpolarizing current.<br />
Each motor neurone spike elicited a time-locked EPSP in the nonspiking<br />
interneurones with very short delay (0.2 ms) that suggested electrical coupling<br />
between nonspiking interneurones and motor neurones. Nonspiking interneurones<br />
directly control the organizatio

リンク情報
DOI
https://doi.org/10.1007/s00359-015-1017-4
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/26038269