A-Level Psychology - PAPER 3 - Aggression
Limbic System – Especially the amygdala, which plays a central role in processing emotions like fear and aggression.
What are the two NEURAL mechanisms in aggression ?
limbic system
- serotonin
Key Terms
What are the two NEURAL mechanisms in aggression ?
limbic system
- serotonin
What are the two components of the LIMBIC SYSTEM ?
amygdala
- hippocampus
What is the role of the AMYGDALA ?
evaluating the EMOTIONAL IMPORTANCE of SENSORY INFORMATION and promoting an APPROPRIATE RESPONSE
What research was done into the amygdala ?
43 / 51 normal behaviour after amygdala removed
What are the STRENGTHS for the amygdala ?
RESEARCH
MRI scans
lower amygdala volume = high (A)
What are the WEAKNESSES for the amygdala ?
EXACT ROLE IS UNKNOWN
Muller = 6 male psychopaths / 6 non-psychopaths
psychopaths = increased amygdala activity
Pardini = lower a...
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| Term | Definition |
|---|---|
What are the two NEURAL mechanisms in aggression ? | limbic system - serotonin |
What are the two components of the LIMBIC SYSTEM ? | amygdala - hippocampus |
What is the role of the AMYGDALA ? | evaluating the EMOTIONAL IMPORTANCE of SENSORY INFORMATION and promoting an APPROPRIATE RESPONSE |
What research was done into the amygdala ? | 43 / 51 normal behaviour after amygdala removed |
What are the STRENGTHS for the amygdala ? | RESEARCH MRI scans lower amygdala volume = high (A) |
What are the WEAKNESSES for the amygdala ? | EXACT ROLE IS UNKNOWN Muller = 6 male psychopaths / 6 non-psychopaths psychopaths = increased amygdala activity Pardini = lower amygdala activity = increased (A) |
What is the role of the HIPPOCAMPUS ? | formation of long-term memories - compare current situation to past experiences |
What research has been done in to the hippocampus ? | boccardi = HABITUALLY VIOLENT offenders exhibited abnormalities of hippocampus functioning |
What are the STRENGTHS for the hippocampus ? | RESEARCH - raine = successful and unsuccessful psychopaths = MRI showed abnormalities in unsuccessful summer = 14yr old with tumour - aggressive manner treated with drugs - returned to normal |
What are the WEAKNESSES for the hippocampus ? | NOT CLEAR CUT - many components in limbic system - not sure which part is implicated |
What is the role of SEROTONIN ? | communication of impulses between neurons normal levels have calming effect low levels in PFC remove calming effect |
What research has been done in to SEROTONIN ? | mann et al - drug that depletes serotonin - questionnaire to access hostility - those with drugs had increased hostility |