Measurement tools
A questionnaire was developed to collect general demographic information about the patient such as age, ethnicity, years of education, employment status, etc. as well as information on alcohol use including age of first drink, cumulative duration of use, duration of dependence, type of alcohol consumed, and dose of alcohol consumed etc.Visual analogue scale (VAS) [Physiological indicators were collected by multiparameter biofeedback (Infiniti3000A, Nanjing Vishee Medical Technology Co., Ltd.), including heart rate, skin conductance and respiratory signals before and during VR cue exposure.