The similarities and differences between the clinical picture of patients with borderline personality disorder and bipolar II disorder in various aspects of symptomatology, pathology, etiology and response to treatment have always been challenging topics between psychiatrists and psychologists. In this regard, the aim of the present study was to compare the psychological profile of patients with borderline personality disorder and bipolar II disorder and normal individuals. The statistical population of this study includes all patients aged 18-40 who referred to the psychiatric ward of Alzahra Hospital in Isfahan in 1300-1400, and by a psychiatrist based on DSM5 criteria and semi-structured SCID-5 interview Received a diagnosisof borderline personality disorder and bipolar II disorder. And all normal individuals in the age group of 18-40 years, who were identified as normal based on a semi-structured interview by a psychiatrist.
The sample consisted of 90 patients (60 patients with borderline personality disorder, bipolar II disorder and 30 normal individuals) who were selected by convenience sampling. Experimental Data Using Computer Tests of the Tower of London Schalis (1982), Go/No Go Hoffman(1984), Continuous performance(1956), N-back(1958), Color-Word Simple Strop(1935), Bart(2002) were collected. Finally, the collected data were analyzed by SPSS-25 software using multivariate analysis of variance (MANOVA) and univariate analysis of variance (ANOVA) as well as Tukey post hoc test. Data analysis showed that patients with borderline personality disorder and bipolar II disorder performed weaker in response inhibition, selective attention, problem solving, and working memory than normal individuals. There was no significant difference between patients with borderline personality disorder and normal individuals in sustained attention. But patients with bipolar II disorder performed poorer in selective attention than normal individuals. High-risk decision-making was