1999 年 6 巻 2 号 p. 99-105
A successive period-doubling cascade (‘spd’) and chaotic solutions are numerically found as a function of leakage conductance in the space-clamped Hodgkin-Huxley equations (HH) for muscle fibres. They occur under the condition of inhibition of sodium inactivation, within a realistic parameter range. While it has been known that HH with a periodic current stimulus have a ‘spd’ root to chaos, the present result is the first report of ‘spd’ in an autonomous style of HH.