6. People with long/long allele for vassopressin 1a receptor gave most, followed by long/short then short/short.
Knafo et al (2008)
Scheres and Sanfey (2006)
7. Interpersonal decision aming involves situations where individuals must anticipate what others will do and predict what they will infer from their own actions.
Camerer (2011)
Wallace et al (2007)
8. Males who rejected £5 had significantly higher testosterone than those who accepted.
Burnham (2007)
Israel et al (2009)
9. Ultimatum Game. Player has 10. If offer is accepted, both gain. If not, both loose.
Guth et al (1982)
Burnham (2003)
10. Artificially raising men's testosterone caused them to only accept higher offers.
Zak et al (2009)
Wallace et al (2007)
11. Rejection of unfair offers in ultimatum game correlated with straightforwardness and trust subscales of agreeableness.
Takahashi (2012) (1)
Gray and Thompson (2004)
12. TMS, disrupted right PFC during ultimatum. Accepted low offers even though reported as unfair.
Knoch et al (2006)
Camerer (2011)
13. Found grey matter volume in right PFC is highly heritable.
Gray and Thompson (2004)
Wallace et al (2007)
14. Even though economists say dictator should not give money, they give 28% (variable) with only 40% not giving anything.
Engel (2014)
Harns et al (1998)
15. Testosterone levels are genetically determined in both genders.
Harris et al (1998)
Knoch et al (2006)
16. Found agreeableness subscales correlated with inherited levels of serotonin transport in Dorsal Raphe Nucleus.
Takahashi (2012) (2)
Rabin (1993)
17. Psychologists are interested because behavioural economists have noted that individuals often make "irrational" decisions.
