Using Neurofeedback to Understand the Relationship Between Stress and Alcohol Consumption

Inclusion Criteria: * Age 18-65 years * Presence of 2 to a maximum of 5 criteria for alcohol use disorder according to DSM-5 * no clinical necessity for detoxification treatment * participants may have a moderate cannabis use disorder and tobacco use disorder * Capacity for consent and ability to use self-assessment scales * Sufficient knowledge of German * Willingness to use a mobile phone with Android operating system Exclusion Criteria: * Lifetime diagnosis of bipolar or psychotic disorder or a substance use disorder according to Diagnostical and Statistical Manual of Mental Disorders - 5 (DSM-5) that is not alcohol, cannabis, or tobacco use disorder * Current substance use other than cannabis and tobacco * Current diagnosis of one of the following conditions according to DSM-5: (hypo)manic episode, major depression, generalized anxiety disorder, post-traumatic stress disorder, borderline personality disorder, or obsessive-compulsive disorder * History of severe head trauma or other severe central neurological disorders (dementia, Parkinson\'s disease, multiple sclerosis) * Pregnancy or lactation * Use of medications known to interact with the central nervous system within the last 10 days; testing at least four half-lives after the last dose * Exercising the prerogative of the \"Right not to know\" in the context of incidental findings during an examination or investigation