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. 2014 Apr 3;8:32. doi: 10.3389/fncir.2014.00032

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Copyright © 2014 Posłuszny.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The transmission of threshold excitation through a GJ containing Cx36 subunit in a pair of FS interneurons. Image based on original data from Gibson et al. (2005). In response to action potential generated in a presynaptic cell (FS 1), a biphasic potential is mediated through the GJ to a postsynaptic FS cell (FS 2). Due to low-pass filtering of Cx36-GJs, fast spike is more attenuated than slow afterhyperpolarization. The biphasic potential in a postsynaptic cell is composed of a small-amplitude short depolarizing phase and long-lasting hyperpolarization in a postsynaptic FS cell.