PSYC 3420 Lecture Notes - Lecture 11: Schizophrenia, Divergent Evolution, Frans De Waal

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Look for similarities or differences between species. Use the yawn test for an early diagnosis that something is off in empathy, can lead to schizophrenic diagnosis. Helping others at the cost to oneself. Giving behaviour does not make sense evolutionary. Begins with parental behaviour, giving to your children increases their survive chances therefore if this was successful then a mutation would eventually occur to be altruistic. Survival reproductive potential of this set of offspring is greater than: North american birds have a higher mortality rate and larger clutches of eggs. The loss from investing resources in offspring. Will defend their nests more in presence of predator this is done by visiting their nest less so the predator is not lead to them. South american birds have lower mortality, easier to survive and small clutches of eggs. Second only to orangutans in terms of parenting.

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