Neural & Hormonal Mechanisms

Question 1

Identify the components of the Limbic system

Answer 1

Hypothalamus
Fornix
Amygdala
Hippocampus
Thalamus

Question 2

Outline the neural mechanisms in aggression

Answer 2

Limbic system
Serotonin

Question 3

Outline the role of the limbic system in aggression

Answer 3

-Most important structure = amygdala
-Key role in humans & non-humans animal in how organism assesses & responds to environmental threats & challenges
-Reactivity of amygdala in humans = important predictor of aggressive behaviour

-Gospic et al. (2011) used lab method of assessing aggressive behaviour called Ultimatum Game
-Proposer offers to split money in certain way, if responder accepts, money shared, if not, nobody gets any
-Responders had brains scanned by fMRI & when rejecting unfair offers = fast & heightened response in amygdala
-Benzodiazepine taken before = halved rejections & decreased activity of amygdala

Question 4

Outline the role of serotonin in aggression