hormones TTSTB

Question 1

What are hormones?

Answer 1

Chemical messengers produced by endocrine glands and released to the bloodstream.

Question 2

testosterone

Answer 2

hormone
function: stimulates sexual function, increases muscle and bone strength

low levels: increase trust, better verbal skills

high levels: aggression, higher sexual drive, better visual + spatial skills.

Question 3

STUDY ON TESTOSTERONE

Answer 3

Dabbs et al, 1987

aim: to investigate the role of testosterone in aggression
- saliva samples 89 prison inmates
- 10/11 men highest testosterone count - violent crimes
- 9/11 men lowest testosterone count - nonviolent crimes
- perceived as toughest high testosterone
- earlier parole - lower testosterone

Question 4

STUDY ON TESTOSTERONE TTSTB

Answer 4

Radke et al, 2015
aim: to see how an increase in testosterone may affect the amygdala when people are responding to a threat
- 54 female
- fMRI happy or angry faces
- approach of avoid the face
- increased activity in the amygdala when approaching threat
- testosterone facilitates aggression.