“…According to Pasveer et al (1981), diffusion through the terminal pore should allow the first stimulus molecules to reach the dendritic membrane within less than 100 J.1s; within a few milliseconds, the effective stimulus concentration at the dendrite tips will reach an almost constant value which, however, is always smaller than the concentration applied outside the hair and represents the steady state between influx through the pore and efflux along the hair lumen. The smaller the pore diameter, the lower is the effective concentration.…”