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. 2019 Sep 13;13:417. doi: 10.3389/fncel.2019.00417

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Copyright © 2019 Faynveitz, Lavian, Jacob and Korngreen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Dopamine depletion increased GABAergic transmission from the GP to the SNr. (A) Example of IPSPs recorded after a 10 Hz stimulation train of SNr neurons from naïve (Ai) and dopamine depleted rats (Aii). (B) Amplitude of the IPSP of naïve (black) dopamine depleted rats (gray) stimulated at 10 Hz (Bi) and at 20 Hz (Bii). Lines are exponential curve fits to the data. (C) Latency of the IPSP of naïve (black) and dopamine depleted (gray) rats stimulated at 10 Hz (Ci) and at 20 Hz (Cii). Values are expressed as the mean ± SEM. *p < 0.05, Mann–Whitney U-test.