Neural Mechanisms

SophHatherlyx
Mind Map by , created over 6 years ago

A Level Psychology A2 (Aggression) Mind Map on Neural Mechanisms, created by SophHatherlyx on 06/05/2013.

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SophHatherlyx
Created by SophHatherlyx over 6 years ago
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Neural Mechanisms
1 Seratonon
1.1 A01
1.1.1 Low seratonin levels are associated with aggression
1.1.2 Seranonin reduces aggression by inhibiting responses to stimuni that usually lead to aggression
1.1.3 MANN- Drugs that reduce seratonin increase aggression
1.2 A02
1.2.1 Support...
1.2.1.1 RAINE- neurotransmitters in antisocial, lower levels of seratonin in aggressive. also low in those attempted suicide
1.2.1.2 RALEIGH- animal, if given tryptophn, less aggressive
1.2.1.3 POPUVA- animals bred for docile and passive behaviour high levels of seratonin
2 Dopamine
2.1 A01
2.1.1 High dopamine levels associated with aggression
2.1.2 LAVINE- drugs to increase dopamine in studies linked to aggression
2.1.3 BUITELAAR- studies using drugs to reduce dopamine, eg antipsychotics, reduce aggression
2.2 A02
2.2.1 Support...
2.2.1.1 COUPPIS- path to brain in mice when aggressive, dopamine released, acts as reward
2.2.2 However...
2.2.2.1 SCERBO- found low levels of seratonin in aggression, but no significant rise or fall of dopamine
3 Testosterone
3.1 A01
3.1.1 High testosterone levels associated with aggression
3.1.2 DABBS- criminals with high testosterone had committed violent crimes/ low testoesterone, non violent crimes
3.1.3 'Callenge Hypethesis' testosterone only rises in response to social challenges resulting in aggression
3.2 A02
3.2.1 However...
3.2.1.1 ALBERT- claimed inconsistent results, too small studies, as most are of men in prisons relying on self report techniques
3.2.1.2 ARCHER- career women have higher levels. may be linked to assertiveness instead of aggression
4 A03
4.1 SOCIALLY SENSITIVE- may not want to admit they are aggressive
4.2 ANIMALS- not generalisable. bio and cognitively different
4.3 ANDROCENTRIC- testosterone, mostly conducted on males
5 Cortisol
5.1 A01
5.1.1 High levels inhibit testosterone and so aggression. Low levels correlate with violence
5.2 A02
5.2.1 Support...
5.2.1.1 MCBURNETT- boys with aggressive disorder, low cortisol levels, 3x level of aggressive symptoms. cortisol strong correlation with aggression

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