Family interaction: parental representation in schizophrenic patients
Onstad, S.; Skre, I.; Torgersen, S.; Kringlen, E.
Acta Psychiatrica Scandinavica. Supplementum 384: 67-70
1994
ISSN/ISBN: 0065-1591 PMID: 7879646 Document Number: 431716
12 monozygotic (MZ) and 19 same-sexed dizygotic (DZ) twin pairs discordant for DSM-III-R schizophrenia completed the Parental Bonding Instrument (PBI). The schizophrenic twins described their parents as less caring and being more overprotective compared to their non-schizophrenic co-twins. These results were independent of age, sex and zygosity. Difference in paternal overprotection was the most important variable discriminating between the schizophrenic probands and their co-twins. Three different hypotheses regarding these findings are discussed.