BACKGROUND Psychiatric comorbidities are common in major depressive disorder (MDD). They may worsen outcome and cause economic burden. The primary objective was to examine the prevalence of psychiatric comorbidities in MDD. The secondary objectives were to compare the presence of comorbidities between currently active and past MDD, and between patients with and without suicidal risk. METHODS ...

Subclinical psychotic experiences at the level of the general population are common, forming an extended psychosis phenotype with clinical psychosis. Persistence of subclinical experiences is associated with transition to later mental disorder. Increased daily life stress reactivity is considered an endophenotype for psychotic disorders. We examined, in a longitudinal framework, whether baselin...

IMPORTANCE Patients with 22q11.2 deletion syndrome (22q11DS) have an elevated (25%) risk of developing schizophrenia. Recent reports have suggested that a subgroup of children with 22q11DS display a substantial decline in cognitive abilities starting at a young age. OBJECTIVE To determine whether early cognitive decline is associated with risk of psychotic disorder in 22q11DS. DESIGN, SETTI...

Introduction: Antipsychotics are often used to manage the affective (manic and depressive) and psychotic symptoms of patients with schizoaffective disorder. However, it is difficult to determine whether observed improvements in depressive symptoms are achieved through effects on depressive symptoms or effects on psychotic symptoms. This analysis evaluated the effect of antipsychotic treatment o...

OBJECTIVE A rare phenomenon of Shared Psychosis Disorder occurring in the context of Bipolar I Disorder, in identical twins is reported. CASE PRESENTATION Two identical twins with shared Psychotic Manic Syndrome were admitted and received antipsychotic and lithium as their treatment. Psychotic symptoms of primary case did not improve and her diagnosis changed into Schizophrenia. They had hypo...

DSM-5 defines psychotic disorders as abnormalities in 1 or more of 5 domains: delusions, hallucinations, disorganized thinking, grossly disorganized or abnormal motor behavior, and negative symptoms. The current psychiatric nosology does not recognize postpartum psychosis as a distinct disorder. DSM-IV-TR allowed clinicians to apply the “with postpartum onset” specifier to brief psychotic disor...

Despite advances in the treatment of schizophrenia over the past half-century, the illness is frequently associated with a poor outcome. This is principally related to the late identification and intervention in the course of the illness by which time patients have experienced a substantial amount of socio-occupational decline that can be difficult to reverse. The emphasis has therefore shifted...

We present a case of shared psychotic disorder involving three sisters who were successful in establishing an insanity defense on numerous felony charges in the South Carolina criminal court system. Two of the authors of this article were court-appointed examiners in this case. We then present a history of shared psychotic disorder, an overview of the use of this diagnosis in the defense of ins...

A variety of studies have suggested that glutamatergic neurotransmission is altered in schizophrenia and bipolar disorder. Here, we tested if plasma glutamate levels are altered in 56 patients diagnosed with schizophrenia, bipolar disorder or non-specified psychosis at the first psychotic episode and at various stages during one-year follow-up. A decrease in the levels of plasma glutamate was o...