Schizoid personality disorder and schizophrenia
There is also disagreement about the relationship between SPD and schizophrenia. Some argue that the two conditions are entirely unrelated except by the origin of the word meaning "split", in the case of SPD it is the individual that can behave in two different ways, but because other personality disorders have the same split behaviour, the word 'schizoid' should be changed according to some psychiatrists. While Kalus[6] believes that schizoids exhibit the negative symptoms that are associated with the schizophrenia, and that SPD may, in rare cases, be an indicator of the onset of the more serious disease. There is a wider consensus to link schizotypal personality disorder with schizophrenia.