Family interaction: parental representation in schizophrenic patients.
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.
Onstad
S
S
Department of Psychiatry, University of Oslo, Norway.
Skre
I
I
Torgersen
S
S
Kringlen
E
E
D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D010287:Parent-Child Relations; D010290:Parents / Q000523:psychology*; D012559:Schizophrenia; D014429:Twins, Dizygotic / Q000523:psychology*; D014430:Twins, Monozygotic / Q000523:psychology*