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# Estimating the number of channels in a patch

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Lostbrain
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Status: Frog Egg
 Topic Started by Lostbrain on 3/22/2011 15:04 PM

Intuitively I think the number of channels (N) in a patch is:

N=n/p

Being n the average of the maximal levels among trials and p the open probability.

Example 1: I apply a voltage pulse of 500 ms to a patch, many times. I get an average of maximal number levels of 3.32. The open probability is 0.2. Then I got aprox 16 channels in the patch.

Example 2: I apply the same protocol to another patch. I get 0.2 levels. p is 0.1. Then N=2 channels

Correct? Any reference you know supporting this?

Thanks!

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