This study is aimed to evaluate the bipolar disorder symptoms in patients presented with schizophrenia, schizoaffective disorder or recurrent depression.

Bipolar disorder is a group of mood disorders characterised by elevated or irritable mood episodes in patient's lifetime history accompanied by some additional symptoms. In this study modern bipolar disorders screening/assessment instruments will be used to explore the prevalence of bipolarity symptoms in patients who never been diagnosed with bipolar disorders. The results of this study could be useful for more accurate assessment of bipolar disorders prevalence in psychiatric patient population, could help to improve the diagnostics of bipolar disorders and management of bipolar patients.

Inclusion Criteria:

• signed patient informed consent
• In-patients with the diagnosis of schizophrenia with episodic course or schizoaffective disorder, OR in-patients and out-patients with the diagnosis of recurrent depression.
• The duration of the disease is 3 years and longer and two or more episodes of the disease in the patients history.

Exclusion Criteria:

• Current diagnosis of Bipolar Disorder
• Severe and unspecified forms of schizophrenia (schizophrenia with continuous course, hebephrenic schizophrenia, catatonic schizophrenia, undifferentiated schizophrenia, unspecified schizophrenia) and organic affective disorder or intoxication induced affective disorder.
• Any other concomitant conditions which, in the judgment of investigator, will not allow the patient to complete the study procedures

Patients having current diagnosis of schizophrenia/ schizoaffective disorder (in-patients) and patients having current diagnosis of recurrent depression (both in-patients and out-patients) will be included into this study.