PAPER 3 - Aggression Flashcards

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1
Q

What are the two NEURAL mechanisms in aggression ?

A
  • limbic system

- serotonin

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2
Q

What are the two components of the LIMBIC SYSTEM ?

A
  • amygdala

- hippocampus

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3
Q

What is the role of the AMYGDALA ?

A

evaluating the EMOTIONAL IMPORTANCE of SENSORY INFORMATION and promoting an APPROPRIATE RESPONSE

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4
Q

What research was done into the amygdala ?

A
  • 43 / 51 normal behaviour after amygdala removed
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5
Q

What are the STRENGTHS for the amygdala ?

A

RESEARCH

  • MRI scans
  • lower amygdala volume = high (A)
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6
Q

What are the WEAKNESSES for the amygdala ?

A

EXACT ROLE IS UNKNOWN

  • Muller = 6 male psychopaths / 6 non-psychopaths
  • psychopaths = increased amygdala activity
  • Pardini = lower amygdala activity = increased (A)
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7
Q

What is the role of the HIPPOCAMPUS ?

A
  • formation of long-term memories

- compare current situation to past experiences

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8
Q

What research has been done in to the hippocampus ?

A
  • boccardi = HABITUALLY VIOLENT offenders exhibited abnormalities of hippocampus functioning
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9
Q

What are the STRENGTHS for the hippocampus ?

A

RESEARCH
- raine = successful and unsuccessful psychopaths = MRI showed abnormalities in unsuccessful

  • summer = 14yr old with tumour - aggressive manner
  • treated with drugs - returned to normal
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10
Q

What are the WEAKNESSES for the hippocampus ?

A

NOT CLEAR CUT

- many components in limbic system - not sure which part is implicated

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11
Q

What is the role of SEROTONIN ?

A
  • communication of impulses between neurons
  • normal levels have calming effect
  • low levels in PFC remove calming effect
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12
Q

What research has been done in to SEROTONIN ?

A

mann et al - drug that depletes serotonin - questionnaire to access hostility - those with drugs had increased hostility

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