[Capgras symptom associated parricides. ].

Capgras symptom is characterized by the delusional belief that a person significant to the patient has been replaced by a 'double' or 'impostor'. Capgras symptom was discussed to be associated with violent behavior. We report here the cases of two male patients with schizophrenia paranoid type, where parricide was connected to Capgras delusion.

[A short overview on the changes of the content of delusions - the impact of technological innovations, historical events and culture].

The content aspect of delusions has been going through fast and great changes over the past hundred years. In this paper we would like to lead the reader through these changes with the brief overview of the related literature, thus giving a better understanding of the underlying causes. In recent years several studies have been published on the impact of technological and cultural changes in delusions, as opposed to the stability of delusional themes over longer periods of time, proved by long-term comparisons and comparative transcultural studies on delusions, allowing for only a certain degree of variability.