Neural Mechanisms

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A Level Psychology A2 (Aggression) Mind Map on Neural Mechanisms, created by SophHatherlyx on 05/06/2013.
SophHatherlyx
Mind Map by SophHatherlyx, updated more than 1 year ago
SophHatherlyx
Created by SophHatherlyx almost 11 years ago
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Resource summary

Neural Mechanisms
  1. Seratonon
    1. A01
      1. Low seratonin levels are associated with aggression
        1. Seranonin reduces aggression by inhibiting responses to stimuni that usually lead to aggression
          1. MANN- Drugs that reduce seratonin increase aggression
          2. A02
            1. Support...
              1. RAINE- neurotransmitters in antisocial, lower levels of seratonin in aggressive. also low in those attempted suicide
                1. RALEIGH- animal, if given tryptophn, less aggressive
                  1. POPUVA- animals bred for docile and passive behaviour high levels of seratonin
              2. Dopamine
                1. A01
                  1. High dopamine levels associated with aggression
                    1. LAVINE- drugs to increase dopamine in studies linked to aggression
                      1. BUITELAAR- studies using drugs to reduce dopamine, eg antipsychotics, reduce aggression
                      2. A02
                        1. Support...
                          1. COUPPIS- path to brain in mice when aggressive, dopamine released, acts as reward
                          2. However...
                            1. SCERBO- found low levels of seratonin in aggression, but no significant rise or fall of dopamine
                        2. Testosterone
                          1. A01
                            1. High testosterone levels associated with aggression
                              1. DABBS- criminals with high testosterone had committed violent crimes/ low testoesterone, non violent crimes
                                1. 'Callenge Hypethesis' testosterone only rises in response to social challenges resulting in aggression
                                2. A02
                                  1. However...
                                    1. ALBERT- claimed inconsistent results, too small studies, as most are of men in prisons relying on self report techniques
                                      1. ARCHER- career women have higher levels. may be linked to assertiveness instead of aggression
                                  2. A03
                                    1. SOCIALLY SENSITIVE- may not want to admit they are aggressive
                                      1. ANIMALS- not generalisable. bio and cognitively different
                                        1. ANDROCENTRIC- testosterone, mostly conducted on males
                                        2. Cortisol
                                          1. A01
                                            1. High levels inhibit testosterone and so aggression. Low levels correlate with violence
                                            2. A02
                                              1. Support...
                                                1. MCBURNETT- boys with aggressive disorder, low cortisol levels, 3x level of aggressive symptoms. cortisol strong correlation with aggression
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