Flashcard Set Preview
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PARENTAL BEHAVIOR
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What hormones does a female secrete large amounts late in pregnancy?
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She secretes estradoil, prolactin, and oxytocin
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What is Prolactin responsible for?
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Milk Production, aspects of maternal behaviour such as retrieving any wandering young back...
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Prolactin is also important in species whose fathers contribute to parental care as well; true...
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True
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What is the hormone Oxytocin responsible for?
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Has effects on maternal behaviour, sexual arousal, social attachment and enhancement of learning...
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What else happens to a female do late in pregnancy?
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Changes in hormone receptors. Her brain increases sensitivity to estradiol in areas resp. for...
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What do these hormonal changes ultimately do?
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They increase the mother's attention to their young after delivery
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What areas of the brain do these hormones primarly affect?
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They increase activity in the medial preoptic area and anterior hypothalamus, areas responsible...
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What else do the preoptic area and anterior hypothalamus effect?
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They also have effects on temp. regulation, thirst, and sexual behaviour
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What is another key hormone produced by the hypothalamus and secreted by the posterior pituitary...
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Vasopressin
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What is a characteristic of male Voles that secrete large amounts of vasopressin?
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They establish long-term bonds with females and help rear their young
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What is a characteristic of male voles with low amounts of vassopressin?
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They mate with females and then virtually ignore them afterwards. Altering gene responsible...
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Although rodent maternal behaviour depends on hormones in first few days, it becomes less dependent...
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If a female is not pregnant she is left with some baby rats she will become more attentive...
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Can female rats without hormonal changes and having their ovaries removed act as parent?
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Yes they can
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How does the mother smell become accustomed to her children's odour?
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Infant rats release chemicals that stimulate the mother's vomeronasal organ which responds...
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