Biological

Description

Psychology (Schizophrenia) Mind Map on Biological, created by lucysavage176 on 21/05/2013.
lucysavage176
Mind Map by lucysavage176, updated more than 1 year ago
lucysavage176
Created by lucysavage176 almost 11 years ago
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Resource summary

Biological
  1. Family studies
    1. 1st degree relatives
      1. share 50%
        1. 18x more at risk
          1. Kendler
        2. inconclusive
          1. retrospective
          2. support
            1. Kety
              1. mothers with + without scizo
                1. matched pairs
                2. group 1- diagnosed 16.2%
                  1. gruop 2- 1.9%
                    1. evaluation
                      1. not rely on retrospective data
                        1. memory
                        2. genes vs environment
                          1. reliablility of diagnosis
                            1. others diagnosed on old system
                      2. Twin studies
                        1. MZ 40%
                          1. DZ 5.3%
                            1. maudsly twin register
                              1. share womb
                              2. Adoption studies
                                1. Finnish
                                  1. Tienari
                                    1. 112 schizo mothers
                                      1. 7% developed schizo
                                      2. 153 control
                                        1. 1.5%
                                        2. separated before age 4
                                          1. poor communication in adopted families increaded risk
                                        3. Biochemical
                                          1. dopamine
                                            1. limbic system
                                              1. excess dopamine
                                                1. super-sensitivity
                                                  1. scizo was induced in rats using amphetamines
                                                    1. evaluation
                                                      1. post mortems
                                                        1. increase dopamine/receptor density
                                                          1. not just scizo
                                                            1. not only factor
                                                          2. PET scans
                                                            1. causal?
                                                            2. drugs
                                                              1. aleviate posative not negative symptoms
                                                                1. most effective drugs affect serotonin
                                                          3. Diathesis stress
                                                            1. predisposition
                                                              1. trigger
                                                              2. genetics cannot give full explaination
                                                                1. 89% have no known relative with schizo
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