Flashcards in Social Behaviour- Affiliation 8 Deck (11)
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1
What is affiliation?
When animals come together
2
Give an example of affiliation and aggression
Meadow vole: females aggressively defend territories in summer breeding season but in winter will share them with individuals of both sexes
3
What is Affiliation linked to?
Nonapeptides, produced by neurons in the hypothalamus and secreted by the posterior pituitary gland
4
What is different about prairie voles?
They’re socially monogamous and live in pairs underground in burrows
5
What was found in the partner preference test on female prairie voles?
Oxytocin acts in the brain to promote pair bonding in females
6
What was found in the partner preference test on male prairie voles?
Males spent significantly more time with their partner after central injection of vasopressin but not oxytocin like females
7
What was found to be responsible for the difference in pair bonding in prairie voles compared to other vole species?
There was a huge difference in receptor binding for oxytocin and areas rich in dopamine- linked to reward and addiction
8
What was found in the V1aR gene of the prairie vole?
A 428bp microsatellite sequence was found in the regulatory region which could account for different expression patterns between species
9
What did the study on mice and the V1aR gene find?
Mice expression the V1aR gene became monogomous
A single gene mutation is sufficient to cause a dramatic change in behaviour
10
What is the bird equivalent of oxytocin?
Mesotocin
11
