alphn.m

利用Matlab模拟细胞HH 模型中的所有参数变化和动态Action Potential 生成过程

function an = alphn(V)

% ALPHN(V) - HH alpha function for n variable. Note vectorized.

    an = zeros(size(V));
    indx = find(abs(V+50)<0.001);
    if isempty(indx)==0
        an(indx) = 1./(10-(V(indx)+50)/2);
        indx = find(abs(V+50)>=0.001);
        if isempty(indx)==0
            an(indx) = 0.01*(V(indx)+50)./(1-exp(-(V(indx)+50)/10));
        end
    else
        an = 0.01*(V+50)./(1-exp(-(V+50)/10));
    end
 return


%	if abs(V+50) > 0.001
%		an = 0.01*(V+50)/(1-exp(-(V+50)/10));
%	 else
%	    an = 1/(10-(V+50)/2);
%	 end
%return