In a similar manner to the genetics of suicide and AUD, two separate literatures have explored neurocognitive differences between (a) individuals who have attempted suicide to those who have not [22–24] and (b) individuals with AUD [25–27] compared to those unaffected with AUD. Among those with AUD, deficits in many domains of brain functioning have been observed, including neuropsychological performance, and neurophysiological indices [25–27]. Executive functioning is the primary focus of such studies, with a large literature demonstrating that individuals with AUD display poorer executive functioning and atypical neurophysiological profiles (e.g., EEG connectivity) than individuals without AUD [28–31]. These areas of brain functioning have also been examined among individuals who have exhibited suicidal ideation and related mental health problems (depression) [22–24], though research focused on SA is limited.
