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Methamphetamine (METH) is a highly addictive and neurotoxic psychostimulant. Its use in humans is often associated with neurocognitive impairment. Whether this is due to long‐term deficits in short‐term memory and/or hippocampal plasticity remains unclear. Recently, we reported that METH increases baseline synaptic transmission and reduces LTP in an ex vivo preparation of the hippocampal CA1 region...
Although the process of extinction has been well documented for various forms of behavioral responses, the effects of extinction on the reinstatement of drug-seeking behavior are relatively understudied. In this report, the effectiveness of an extinction training protocol to reduce primed reinstatement responses was compared with the effectiveness of an equivalent period of enforced abstinence. We...
In order to further characterize the actions of cocaine on synaptic activity in the hippocampus, recordings of field excitatory postsynaptic potentials in the CA1 region of the rat hippocampal slice preparation were used to monitor drug effects on long-term potentiation (LTP) evoked in response to stimulation of the Schaffer collateral pathway. Cocaine had dose-dependent, biphasic effects on the magnitude...
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