At postnatal day 23, surgical screws were inserted into the skull over the frontal lobe and the contralateral occipital lobe (Weinberg et al., 2013 (link)). Subsequently, wires from a pin connector strip were attached to the screws, and the connector strip was secured to the skull with cranioplastic cement. One to two days later, 2 rats were switched to control liquid diet for two days followed by alcohol diet for the next 15 days while 2 control rats remained on CD throughout the experiment. On the day of withdrawal, EPOCH wireless transmitters (Ripple, Salt Lake City, UT) were attached to the pin connector strip. Rats were placed in new cages on an EPOCH wireless receiver tray (Ripple, Salt Lake City, UT) attached to Powerlab 8/30 (ADInstruments, Colorado Springs, CO). EEG data was recorded and analyzed using Chart5 software (ADInstruments, Colorado Springs, CO).