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. 2003 Sep 10;23(23):8237–8246. doi: 10.1523/JNEUROSCI.23-23-08237.2003

Figure 9.

Figure 9.

A summary of values for the GABAA IPSP reversal potential (EIPSP-A) and the GABAA IPSP driving force (DFIPSP-A) in GABAergic and dopaminergic (DA) cells in standard (CTRL) and bicarbonate-free (HEPES) solution. EIPSP-A is significantly less hyperpolarized in dopaminergic than in GABAergic neurons under standard conditions. In the absence of bicarbonate, the EIPSP-A is significantly more positive, and the polarity of DFIPSP-A is reversed in the dopaminergic neurons. In contrast, there are no significant changes in these parameters in the GABAergic neurons.