Validity and reliability of the Indonesian version of the Scale for the Assessment of Negative Symptoms.

Background: Negative symptoms have long been conceptualized as a core aspect of schizophrenia. Despite widespread recognition of the status of these symptoms as independent dimensions of schizophrenia, they are sometimes difficult to distinguish from depression or cognitive impairment. Therefore, objective assessment of schizophrenia symptoms is critical by obtaining a valid and reliable Indonesian version of the SANS instrument.

Shared Psychotic Disorder (Folie À Deux): A Rare Case with Dissociative Trance Disorder That Can Be Induced.

Background: Shared psychotic disorder was first introduced in the 19th century in France with the name Folie à deux. Since then, the concept of Folie à deux has been developed and produces several subtypes in France. In DSM, this disorder is called Shared Psychotic Disorder, and in ICD-10, it is called Induced Delusional Disorder.