Aggression- Neural Flashcards
Parts of the brain associated with agg
Amygdala
Prefrontal cortex
Researchers into neural aggression
Raine
Teteno
Zagrodzka
Potegal
Neurotransmitters associated with agg
Serotonin
Dopamine
What is dopamine?
Rewarding feeling- sex/eating
What is serotonin
Calming affect
Low levels thought to cause agg and impulsive behaviour
Evaluation points
Supporting research Too simplistic Animal research Deterministic Scientific
What did raine do
PET scans 41 murderers pleading NGRI
Found low activity in PFC and amygdala
What did tateno do
89 males TBI (traumatic brain injury)
Recorded agg- family interviews, police reports and accounts if friends
34% agg
66% agg
Brain scans of all
Those who rated agg more likely to have frontal lobe damage
What did zagrodska do
Cats Damage to Central nucleus of amygdala was factor in predator like attacks
What did potegal do
Agg Hamsters have more active neurons in medial nucleus of amygdala
What behaviours are caused by damage to the prefrontal cortex
Impulsive, immature, altered emotion, easily provoked, short tempers
What is the amygdala associated with
Emotional patterns
What is the role of lesioning on agg
Marked reduction in fear
Amygdalectomy reduced agg and has implications for emotional responses
What did potegal suggest about animals and humans
We vary qualitatively not quantitatively
