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Talk:Quadratic integrate and fire

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TODO:

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BBAmp (talk) 07:07, 11 December 2014 (UTC)[reply]

What are the variables??

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We see this:

I'm guessing t is time. But what is x? And what units is it measure in? Voltage? Charge (in coulombs)? Something else? Michael Hardy (talk) 20:09, 12 December 2014 (UTC)[reply]

The variable is meant to represent the membrane voltage of a neuron and is meant to represent some input current to the membrane. Units for can be taken to be Voltage (mV) and can be taken to be Amps (nA), but they are often dimensionless because the units don't quite work out in the above form. AppliedMathematician (talk) 14:20, 28 September 2023 (UTC)[reply]

It this supposed to be a linear integrate and fire?

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The actual formula for QIF neuron is With being the membrane time constant. The point of using a QIF neuron as opposed to LIF is that the sub-threshold voltage should have an inflection point, before a spike. This would closely mimic HH equation with low computational cost

Hi, "Actual" is relative. The above form is a perfectly valid version of the QIF neuron AppliedMathematician (talk) 14:21, 28 September 2023 (UTC)[reply]