Intermittency between type I and type V in some quasi-discontinuous systems

In some practical systems a very short, rapid changing stage appears inside a relatively very long and slowly changing process. Such a system may be c alled quasi-discontinuous system. In order to qualify it, we quantitatively give the definitions of quasi-discontinuity and quasidiscontinuous region. By a simplified model, we have shown that the scaling law of the averaged laminar length of the intermittency in such systems can be an intermediate one between that of type I and type V. This phenomenon has been observed in Hindmarsh-Rose model describing neuronal activities.