PSYC 327 Lecture Notes - Lecture 3: Montane Vole, Prairie Vole, Reward System
9 Sep 2016
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Document Summary
Prairie vole is biparental while for the montane the male doesn"t stay around to help raise the offspring. Hormones are believed to be involved in pair bonding. Insects and worms have one hormone that is a mix of the two. In females ot facilitates formation of partner preference, increase social contact after cohabitation even in the absence of mating. In makes avp increase affiliation behavior and aggression towards intruders. Ot and avp are produced in the brain (hypothalamus) by neuron secretory cells, and released though in the. Involved in affiliation, sexual behavior, onset of maternal care, formation of mom-infant bond. In female prairie voles: high density of otr (receptors) in the brain areas involved in the reward system and play a role in conditioned learning. Ot in these areas reinforce the association between the rewarding effects of nacc (nucleus accumben) activation and the male she just mated with.
