Alcoholism and post-traumatic stress disorder are frequently co-morbid. The authors show that chronic intermittent exposure to ethanol impairs extinction of fear conditioning in mice. In vivo recordings showed that extinction encoding was impaired in infralimbic medial prefrontal cortical (mPFC) neurons, which are associated with downregulation of the NMDA receptor subunit GluN1 in mPFC.
- Andrew Holmes
- Paul J Fitzgerald
- Marguerite Camp