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. 2016 Jun 29;116(3):1152–1160. doi: 10.1152/jn.00353.2016

Fig. 2.

Fig. 2.

The effect of age on ouabain-induced SD. A and B: representative recordings of [K+]o dynamics during ouabain-induced SD in 4- to 9-day-old (young; A) and 35- to 40-day-old (old; B) flies. Downward arrows denote the time of ouabain application. C: representative recording of spontaneous SD recorded from within the brain of an old fly. D: baseline [K+]o levels (millimolar) recorded throughout the 40-min treatment period with ouabain in young (black circles) and old (gray circles) flies. Baseline [K+]o was measured before ouabain injections (Time = 0) and every 5 min thereafter. Data are plotted as means ± SE.