Hormonal explanations of Aggression 0.0 / 5 ? PsychologyAggressionA2/A-levelAQA Created by: Ellie ConnollyCreated on: 29-05-14 15:42 Sapolsky 1 (T) Middle ranking monkey= T only enhances existing aggression 1 of 18 Saposky 2 (T) Female hyenas dominant in wild= social 2 of 18 Berthold (T) Castrated cockrels less aggressive 3 of 18 Motelico-Heino (T) Mice castrated at birth less aggressive 4 of 18 Davidson et al (S) Seratonin lower in violent criminals and higher in domesticated animals 5 of 18 Mann et al (S) Seratonin reducing drugs to 5 adults= diffs only prominent in men= gender diffs 6 of 18 Lenard (S) Low seratonin= impulsion/ violence 7 of 18 Badaway (S) S link eplains violence and alcoholism- drinking causes inbalance of seratonin 8 of 18 Davidson (S) S doesn't explain brain structure influences 9 of 18 Potegal (Br) Hamsters have more active neurons in amygdala during aggressive acts 10 of 18 Blair et al (Br) Psychopathy involves damage to amygdala (psychopaths commonly violent) 11 of 18 Gur et al (Br) Women have proportionally larger frontal brain regions= greater inhibitory control of behaviour 12 of 18 Lavine (D) Increases in Dopamine via amphetamines associated with higher aggression 13 of 18 Couppis et al (D) Dopamine is reinforcer not cause- some seek aggressive acts for D hit (causality) 14 of 18 Causality (Evaluation) Requires removal of T pre-emptively= only on male animals- gender + ethics 15 of 18 Precision (Evaluation) Tampering of hormones= too invasive for humans 16 of 18 Validity (Evaluation) Operationalisation- correct measurement? Different studies measure/ quantify differently= reliability? 17 of 18 Individual differences (Evaluation) Naturally varying hormone balances= hard to determine normal levels 18 of 18
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