<table cellspacing="0" cellpadding="0" border="0"><tr><td valign="top"><div id='yahoo__compose_area' style="background-color:white; display:block; font-family:HelveticaNeue-Regular,Helvetica;">Hello All<div>If we used earlobe as a reference electrode which is not on the scalp, can we re-reference to the average reference? Or it is work only when the fix reference attached to the scalp?</div><div><br></div><div>AHMED </div><div><br></div></div><div id='yahoo__original_message'></div></html></td></tr></table>