Summary of KCl-evoked electrochemical signals in brain slices
| Amplitude | Tc | |
|---|---|---|
| μM | μM/s | |
| Striatum (n = 84) | 4.40 ± 0.37* | 0.061 ± 0.006* |
| SN (n = 80) | 0.38 ± 0.02 | 0.003 ± 0.001 |
Release evoked by superfusion of KCl (30 mM) in striatal and nigral slices. Data represent mean ± S.E.M. (n = total number of signals, one signal per slice). Parameters listed are peak amplitude of signal and Tc of signal. Both amplitude and Tc were significantly (*p < .001, Student’st test) higher in striatum than in SN. Signals were predominantly DA-like in both brain regions, as demonstrated by red/ox ratios (see Results).