channel.name = 'Sense';
channel.longname = '';//defaults to normal name if blank
channel.desc = 'Opens & weakly excites when triggered by a body part.';

// relative conductance of ions when channel is open
channel.set_conductance(ion_na, 15);

// all channels set as sensory are automatically opened by the corresponding body sensor.
// while recieving input, they constantly reset the first timer we declare here to keep it open
channel.sensory = 1;

channel.if_timer('open', 20);
channel.close();
