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. 2013 Nov 11;8(11):e78247. doi: 10.1371/journal.pone.0078247

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© 2013 Toth et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Left column: only the fast protractor motoneuron is inhibited. Right column: only the fast retractor motoneuron is inhibited. In both columns: top panel: normal disinhibition of both slow motoneurons (); 2nd panel: strong disinhibition of the slow retractor motoneuron, only (, ); 3rd panel: strong disinhibition of both slow motoneurons (); bottom panel: strong disinhibition of the slow protractor motoneuron, only (, ). Note that the small-amplitude oscillation due to the activity of the slow motoneurons is positioned close to the extremal angle corresponding to the uninhibited fast motoneuron, e.g. to the maximal retraction position if only the fast retractor motoneuron remains active (left column).

Inline graphic — Left column: only the fast protractor motoneuron is inhibited. Right column: only the fast retractor motoneuron is inhibited. In both columns: top panel: normal disinhibition of both slow motoneurons (); 2nd panel: strong disinhibition of the slow retractor motoneuron, only (, ); 3rd panel: strong disinhibition of both slow motoneurons (); bottom panel: strong disinhibition of the slow protractor motoneuron, only (, ). Note that the small-amplitude oscillation due to the activity of the slow motoneurons is positioned close to the extremal angle corresponding to the uninhibited fast motoneuron, e.g. to the maximal retraction position if only the fast retractor motoneuron remains active (left column).