Fig. 6From: Functiogenesis of the embryonic central nervous system revealed by optical recording with a voltage-sensitive dye a Oscillations evoked by N.I stimulation in 9 ~ 12-day embryonic chick OBs. Color-coded maps of the oscillation in 9- and 12-day preparations are also shown. b Comparison of the incidence of the oscillation in the OB at 6- to 12-day embryonic stages. Modified from Ref. [11]Back to article page