schizophrenia_treatment-post

schizophrenia_treatment-post - Schizophrenia: Etiology and...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Schizophrenia: Etiology and Schizophrenia: Etiology and Treatment Treatment Dr. Nolan Zane Dr. Nolan Zane
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Etiology of schizophrenia – one Etiology of schizophrenia – one of the most researched areas in of the most researched areas in the mental health field. the mental health field.
Background image of page 2
Problems in interpreting genetic studies Several types of the disorder – risk higher for child of SZ parent who does not respond to meds, could be additional biological link. Psychological disorder in nonschizophrenic parent often not considered such that the genetic contribution of SZ parent is overestimated. Varying definitions of concordance; schizophrenia spectrum includes schizoid, borderline, schizophreniform disorders. Bias in interviewers of relatives – non-blind studies Studies based on patients with severe and chronic conditions may inflate estimates of genetic influences. Heredity and schizophrenia
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Studies involving blood relatives -- based on 1 percent risk in general population and comparison with risk and degree of genetic similarity in relatives General finding: The closer the blood relationship, the higher the risk among relatives of schizophrenics
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Environment confounded with genetics – shared genes and environment. Twin studies: concordance rate for MZ twins should be higher than that for DZ twins. Generally, concordance rates for schizophrenia are two to four times higher in MZ than DZ twins. MZ concordance ranges from 0 to 86 percent because definitions of schizophrenia spectrum can vary.
Background image of page 6
Adoption studies -- eliminates environmental influence in twin studies; includes controls that had non-SZ mothers but same adoption procedures. In Heston (1966) study, 0 of 50 controls become schizophrenic,
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 17

schizophrenia_treatment-post - Schizophrenia: Etiology and...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online