What resolves this contention: Drug exposure induces LTP at VTA dopamine neuron…

What resolves this contention: Drug exposure induces LTP at VTA dopamine neurons (shown with cocaine, single exposure) and subsequent LTD at NAc medium spiny neurons / The temporal dynamics are complex: initial VTA LTP may normalize within days, while NAc changes depend critically on whether exposure was contingent (self-administration) vs non-contingent (experimenter-delivered)