/** * This method calculates the somatic, dendritic, and total area of the * membrane surface. * * path - The path to the cell. */ function printStatsArea(path) str path str comp float pi = 3.14159 float dia, len, area_soma = 0.0, area_total = 0.0 /* Get the total membrane area. */ area_total = 0.0 foreach comp ({el {path}/##[TYPE=compartment]}) dia = {getfield {comp} dia} len = {getfield {comp} len} area_total = {{area_total} + {{pi} * {dia} * {len}}} //echo {comp}" "{{pi} * {dia} * {len}} end dia = {getfield {path}/soma dia} len = {getfield {path}/soma len} area_soma = {{pi} * {dia} * {len}} echo "Membrane surface: "{area_total}" m^2" echo "A_s = "{area_soma} echo "A_d = "{ {area_total} - {area_soma}} echo "A_d / A_s = "{{{area_total} - {area_soma}} / {area_soma}} end /** * This function adjusts the resting potential so that the leak current is in a steady state. */ function setVrest(path) str path str comppath, chanpath float Em, Isum foreach comppath ({el {path}/##[TYPE=compartment]}) Isum = 0.0 foreach chanpath ({el {comppath}/##[TYPE=tabchannel]}) Isum = {Isum} + {getfield {chanpath} Ik} end Em = {{getfield {comppath} Vm} - {Isum} * {getfield {comppath} Rm}} setfield {comppath} Em {Em} end end