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← Risk factors for schizophrenia - Intro to Psychology

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Showing Revision 9 created 09/11/2017 by Retired user.

  1. So we see that the more closely
    a person is related to someone
  2. who suffers from schizophrenia.
  3. The more likely that person is also
    to suffer from the disorder.
  4. So we know from this that there is
    a genetic component to schizophrenia,
  5. but by itself that's not enough.
  6. There also has to be some kind of
    stressful environmental experience
  7. that the person suffers from.
  8. Those two things together are really
    what's required and we refer to this
  9. as the diathesis stress model.
  10. So, diathesis means
    the biological predisposition
  11. and the stress means some kind
    of environmental event.
  12. It's those two things together
    that are really required.
  13. And this, by the way, applies to all kinds
    of psychological disorders.
  14. Anxiety, personality disorders,
    obsessive compulsive disorders.
  15. So, let's take a closer look at some
    of the seenvironmental risk factors
  16. for schizophrenia.
  17. So one of the risk factors involved
    in the development of schizophrenia
  18. is maternal infection.
  19. And so what we mean by this is that
    if a pregnant woman is exposed to diseases
  20. or infections, that the baby, later on
    in life, actually has an increased risk
  21. for the development of schizophrenia.
  22. So some of these diseases and infections
    include things like herpes,
  23. influenza, rubella and toxoplasmosis.
  24. And toxoplasmosis by the way is found
    in feline feces which is one reason
  25. why doctors always recommend
  26. that pregnant women
    stay away from cat litter.
  27. Other environmental risk factors
    include chronic stress
  28. and taking certain drugs, now again,
  29. by themselves, these things do not cause
    or even really increase schizophrenia.
  30. It's that coupled with
    a genetic predisposition
  31. that's really required.
  32. And again this is what we mean
    by the diathesis stress model.