The transient optogalvanio signals (OGS) corresponding to the transitions from IS to 2P states of Ne within a hollow cathode discharge tube under various discharge currents were tested. The most interesting phenomenon was that, when the current was small enough, the mirror imaging symmetry between the profiles of 1S2~2Pk transition and of 1S4(i=3, 4, 5) -2Pktransitions disappeared. The theoretical analys is based,on the three states model and a hypothesis of the relaxation process of cathode bombarding is presented. It agrees with the experimental results.