6.
Chelnokova O, Laeng B, Eikemo M, Riegels J, Loseth G, Maurud H
. Rewards of beauty: the opioid system mediates social motivation in humans. Mol Psychiatry. 2014; 19(7):746-7.
DOI: 10.1038/mp.2014.1.
View
7.
Cohen E, Ejsmond-Frey R, Knight N, Dunbar R
. Rowers' high: behavioural synchrony is correlated with elevated pain thresholds. Biol Lett. 2009; 6(1):106-8.
PMC: 2817271.
DOI: 10.1098/rsbl.2009.0670.
View
8.
de Waal F, Aureli F, Judge P
. Coping with crowding. Sci Am. 2000; 282(5):76-81.
DOI: 10.1038/scientificamerican0500-76.
View
9.
Dunbar R, Korstjens A, Lehmann J
. Time as an ecological constraint. Biol Rev Camb Philos Soc. 2009; 84(3):413-29.
DOI: 10.1111/j.1469-185X.2009.00080.x.
View
10.
Fabre-Nys C, Meller R, Keverne E
. Opiate antagonists stimulate affiliative behaviour in monkeys. Pharmacol Biochem Behav. 1982; 16(4):653-9.
DOI: 10.1016/0091-3057(82)90432-4.
View
11.
Ferguson E, Atsma F, de Kort W, Veldhuizen I
. Exploring the pattern of blood donor beliefs in first-time, novice, and experienced donors: differentiating reluctant altruism, pure altruism, impure altruism, and warm glow. Transfusion. 2011; 52(2):343-55.
DOI: 10.1111/j.1537-2995.2011.03279.x.
View
12.
Finlay B, Darlington R
. Linked regularities in the development and evolution of mammalian brains. Science. 1995; 268(5217):1578-84.
DOI: 10.1126/science.7777856.
View
13.
Hamilton W
. The genetical evolution of social behaviour. I. J Theor Biol. 1964; 7(1):1-16.
DOI: 10.1016/0022-5193(64)90038-4.
View
14.
Hauert C, De Monte S, Hofbauer J, Sigmund K
. Volunteering as Red Queen mechanism for cooperation in public goods games. Science. 2002; 296(5570):1129-32.
DOI: 10.1126/science.1070582.
View
15.
Hsu D, Sanford B, Meyers K, Love T, Hazlett K, Wang H
. Response of the μ-opioid system to social rejection and acceptance. Mol Psychiatry. 2013; 18(11):1211-7.
PMC: 3814222.
DOI: 10.1038/mp.2013.96.
View
16.
Issartel J, Marin L, Cadopi M
. Unintended interpersonal co-ordination: "can we march to the beat of our own drum?". Neurosci Lett. 2006; 411(3):174-9.
DOI: 10.1016/j.neulet.2006.09.086.
View
17.
Jenkinson C, Dickens A, Jones K, Thompson-Coon J, Taylor R, Rogers M
. Is volunteering a public health intervention? A systematic review and meta-analysis of the health and survival of volunteers. BMC Public Health. 2013; 13:773.
PMC: 3766013.
DOI: 10.1186/1471-2458-13-773.
View
18.
Keverne E, Martensz N, Tuite B
. Beta-endorphin concentrations in cerebrospinal fluid of monkeys are influenced by grooming relationships. Psychoneuroendocrinology. 1989; 14(1-2):155-61.
DOI: 10.1016/0306-4530(89)90065-6.
View
19.
Martel F, Nevison C, Simpson M, Keverne E
. Effects of opioid receptor blockade on the social behavior of rhesus monkeys living in large family groups. Dev Psychobiol. 1995; 28(2):71-84.
DOI: 10.1002/dev.420280202.
View
20.
Meller R, Keverne E, Herbert J
. Behavioural and endocrine effects of naltrexone in male talapoin monkeys. Pharmacol Biochem Behav. 1980; 13(5):663-72.
DOI: 10.1016/0091-3057(80)90010-6.
View