Aggression- Hormonal Flashcards
What does the endocrine system do
Produces several hundred hormones that interact with each other and the nervous system it regulate many different behaviours
What is the job of a hormone
To regulate and control bodily functions
Which hormone is involved with agg
Testosterone
Why does castration reduce agg
Removing testes removes main source of testosterone
Who are the researchers into hormonal agg
Archer
Edwards
Van Goozen
What did Archer do
Meta analysis
5 studies
Low positive correlation between testosterone and agg
What did Edwards do
Injected neonate rats with testosterone
Injected again when adults
Made them act like males when they were injected again as adults
The rats only injected as adults didn’t act like that
Suggesting early exposure to testosterone is important
What did Van Goozen do
35 female to males and 15 male to females
F to M given androgen and M to F given anti androgen over 3 months
Given questionnaire to assess proneness to agg- before and after treatment
F to M reported an increase in agg proneness and M to F reported decrease
Suggesting levels of testosterone determines likelyhood if displaying agg behaviour
What is cortisol
Hormone released from adrenal medulla in response to stress
Relationship: lower levels of cortisol, higher level of agg
Supported by research on agg school children and violent offenders
Interacts with testosterone
High testosterone and low cortisol more likely to be agg
What are the eval points for hormonal explanation
Supporting research Correlational Methodological problems Too simplistic Research based on animals