Firing probability (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle fp}"><semantics><mrow class="MJX-TeXAtom-ORD"><mstyle displaystyle="true" scriptlevel="0"><mi>f</mi><mi>p</mi></mstyle></mrow><annotation encoding="application/x-tex">{\displaystyle fp}</annotation></semantics></math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e5fff5606f03c2f7d266ebbcc88d75f6ef12323d" class="mwe-math-fallback-image-inline" aria-hidden="true" style="vertical-align: -0.671ex; width:2.448ex; height:2.509ex;" alt="{\displaystyle fp}"></span>) of Hodgkin–Huxley type neuron, stimulated with the set of <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle NP}"><semantics><mrow class="MJX-TeXAtom-ORD"><mstyle displaystyle="true" scriptlevel="0"><mi>N</mi><mi>P</mi></mstyle></mrow><annotation encoding="application/x-tex">{\displaystyle NP}</annotation></semantics></math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/cbb96b0c7cdeba71278d234f3478d41964dfa1dd" class="mwe-math-fallback-image-inline" aria-hidden="true" style="vertical-align: -0.338ex; width:3.809ex; height:2.176ex;" alt="{\displaystyle NP}"></span> input impulses as a function of temporal coherence of the impulses. The curves from the left to the right correspond to increasing potassium 
conductance, that is to increasing degree of inhibition.
<a href="//commons.wikimedia.org/w/index.php?title=User:%D0%9E%D0%BB%D0%B5%D0%BA%D1%81%D0%B0%D0%BD%D0%B4%D1%803&amp;action=edit&amp;redlink=1" class="new" title="User:Олександр3 (page does not exist)">Олександр3</a>
CC BY-SA 3.0
Own work based on: <a href="//commons.wikimedia.org/wiki/File:Step_Ukr.pdf" title="File:Step Ukr.pdf">Step Ukr.pdf</a>