Figure 5.

In vivo monitoring of response to microinjection of 100 mM K⁺-aCSF in the rat striatum. (A) shows an example trace for simultaneous responses of Gln (i), Glu (ii), GABA (iii) and ACh (iv). Arrows indicate beginning of microinjection. Rise times could be observed within 3 droplets or ~9 s. (B) shows averaged responses of Gln (i), Glu (ii), GABA (iii) and ACh (iv), (mean ± SEM, n = 4 rats). Data were expressed as percentages of the averaged baseline values during pre-stimulation levels. Dashed lines indicate periods of K⁺-stimulation. Linear-mixed effects models indicate significant changes (*, p < 0.05) between basal and stimulation phases.