By adopting visual physiological approach

the relation between the eyes and 12 channels was studied. Through management of latent period of P100 wave peak and its vibrating amplitude

the results showed: CD There was a close relationship between the eyes and channels

either with or without running courses through the eyes. Those non - channel spots showed no relationship at all. （2） The degrees among them showed differences in the 12 channels. （3） Needling 12 channels induced figurative different changes of induced P electric potential. The bladder channel revealed an easy reaction while the remaining channels

inhibition reactions.