null
US
Sign In
Sign Up for Free
Sign Up
We have detected that Javascript is not enabled in your browser. The dynamic nature of our site means that Javascript must be enabled to function properly. Please read our
terms and conditions
for more information.
Next up
Copy and Edit
You need to log in to complete this action!
Register for Free
27662810
neural and hormonal mechanisms in aggression
Description
neural mechanisms, limbic system, serotonin, hormonal mechanisms, testosterone
No tags specified
neural and hormonal mechanisms in aggression
psychology
aggression (paper 3)
a level
Mind Map by
yui chen
, updated more than 1 year ago
More
Less
Created by
yui chen
over 3 years ago
42
0
0
Resource summary
neural and hormonal mechanisms in aggression
neural mechanisms
limbic system
central part of brain
involved in processing emotional responses
amygdala
influences aggression in humans and animals
causes aggressive response when stimulated
abnormalities (eg. tumour, damage or atypical development)
levels of testosterone can be raised
aggressive behaviour is more likely
research
summer
case study of 14-year-old girl with highly aggressive behaviour and epileptic seizures
shown to have a tumour in the limbic system
the patient returned to normal aggression levels after the tumour was treated with drugs
kluver and bucy
removed part of the temporal lobes in rhesus monkeys
destroyed amygdala
lower levels of aggression
kluver-bucy syndrome
serotonin
inhibitory neurotransmitter
low levels of serotonin = higher levels of aggression
research
cherek
when men take drugs that increase serotonin levels = low levels of aggression
shows low levels of serotonin = high levels of aggression
evaluation
:) evidence to support
delgado - found monkeys attacked other monkeys when the hypothalamus (part of limbic system) was stimulated
similar results with cats
:( hard to establish cause and effect relationship
the limbic system is made up of many different parts
unclear which parts are involved in aggression
could be an interaction between multiple components, not just one
:( individual differences
not everyone is aggressive despite having low levels of serotonin
can't say everyone will react in the same way
hormonal mechanisms
testosterone
male sex hormone
thought to influence aggression from young adulthood onwards
due to action on brain areas involved in controlling aggression
higher levels lead to increased aggression
research
beeman
castrated male mice
aggressiveness reduced
then re-injected testosterone into the mice
aggressiveness re-established
dolan
found a positive correlation between testosterone levels and aggressive behaviours
sample of 60 male offenders in UK maximum security hospitals
evaluation
:) evidence to support
dabbs - found higher levels of testosterone in violent offenders than in non-violent offenders
violent
rapists
non-violent
burglars
thieves
measured saliva from 692 adult male prisoners
:( animal research
:) it's unethical to castrate human males to lower their testosterone levels
physical and psychological harm
:( unethical to do conduct research on animals too
:( problems generalising findings from animals to humans
humans are more complex
testosterone may differ from animals to humans
:( research on hormonal mechanisms and aggression is correlational
:) more ethical way to research hormonal mechanisms in aggression
unethical to make someone aggressive by changing their level of testosterone
:( unsure whether abnormality with hormones causes aggression or if a person being aggressive changes their hormonal structure
:( may be other factors affecting aggression
eg. upbringing
:( hormonal and neural mechanisms are deterministic
our aggression is predetermined
:) can make predictions about aggressive behaviour
earlier treatments can be given to prevent future aggressive behaviour
:( not everyone responds in the same way to high levels of testosterone or low levels of serotonin
:( ignores free will
Show full summary
Hide full summary
Want to create your own
Mind Maps
for
free
with GoConqr?
Learn more
.
Similar
History of Psychology
mia.rigby
Biological Psychology - Stress
Gurdev Manchanda
Bowlby's Theory of Attachment
Jessica Phillips
Psychology subject map
Jake Pickup
Psychology A1
Ellie Hughes
Memory Key words
Sammy :P
Psychology | Unit 4 | Addiction - Explanations
showmestarlight
The Biological Approach to Psychology
Gabby Wood
Chapter 5: Short-term and Working Memory
krupa8711
Cognitive Psychology - Capacity and encoding
T W
The working memory model
Lada Zhdanova
Browse Library