Causality and Biology

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  • Created by: The Shrew
  • Created on: 13-01-16 20:28
2 explanations
Proximate- lifetime of individual, how things happen, biological- genetics, brain, neurotransmitters/ Ultimate- how, evolution, why
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2 types of diagnosis
Organic- clear biological causes (rare)/ Functional- no clear systematic organic causes (most)
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2 types of causes
Necessary- cause that always has to be present (None)/ Sufficient- if this is present disorder is always diagnosed (None)
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Behavioural genetics
genetic relatedness and correlations using twin and adoption studies
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Molecular genetics
sequences of DNA look for similarities
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Common method
Genome-wide association studies
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Epigenetics
changes in gene expression affect distress- methyl groups block DNA so it can't be read
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Gottesman
Mz 46%/ Dz 17%- sz
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Hek et al
continuum of depression searched for common variants- found nothing
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Faraone
Few replicated findings for genetivs
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Open paradigm project
Joanna Moncrieff/ Leah Harris- anti drug appeals
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Parental stress causes changes in epigenome in 3 ways
change in sex gametes/ uterine environment/ postnatal care
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Environment can change
Gene expression/ brain functioning/ brain morphology
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Neigh et al
trauma in childhood can effect hypothalamus pituitary adrenal axis depending on genetic make-up of the individual
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People have different hormonal response to different situations
Environment x Biology= adaptive response
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Maltreated children experience stress
release oxytocin instead of cortisol
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Other cards in this set

Card 2

Front

2 types of diagnosis

Back

Organic- clear biological causes (rare)/ Functional- no clear systematic organic causes (most)

Card 3

Front

2 types of causes

Back

Preview of the front of card 3

Card 4

Front

Behavioural genetics

Back

Preview of the front of card 4

Card 5

Front

Molecular genetics

Back

Preview of the front of card 5
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