Neural, Hormonal & Genetic Mechanisms (AQA A-Level Psychology): Flashcards
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MAOA gene's role
MAOA gene's role
Controls MAOA enzyme that breaks down serotonin
MZ vs DZ twins: % genes shared
MZ vs DZ twins: % genes shared
MZ 100%, DZ 50%
Aggression heritability % (twin studies)
Aggression heritability % (twin studies)
~50% of variance
Coccaro: MZ vs DZ physical assault concordance %
Coccaro: MZ vs DZ physical assault concordance %
MZ 50%, DZ 19%
Rhee & Waldman: genetic variance % in aggression
Rhee & Waldman: genetic variance % in aggression
41%
Low-activity MAOA gene nickname
Low-activity MAOA gene nickname
'Warrior gene'
Gene + environment interaction term
Gene + environment interaction term
Diathesis-stress interaction
Frazzetto: Low MAOA link to aggression needs
Frazzetto: Low MAOA link to aggression needs
Childhood trauma in first 15 years
Vassos: genes involved in aggression (estimate)
Vassos: genes involved in aggression (estimate)
Hundreds or thousands
Godar: MAOA knockout mice showed
Godar: MAOA knockout mice showed
Hyperaggression + increased serotonin