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Psychopathology or evolution?

I keep telling myself that I should stop going to CNN's website because there are too many news stories related to child death. But, this story is directly related to a discussion we had a while back about whether instances of infanticide were due to random psychopathology or evolutionary pressures. What do you think?

http://www.cnn.com/2006/LAW/05/24/kids.tossed.ap/index.html

Comments

The instances of infanticide that we previously discussed were due to the evolutionary pressures on the dominant male of a certain group. These instances occured to ensure that only the dominant male's genes were propagated among the group. The actions of the mother in the CNN article are clearly due to random psychopathology because no evolutionary pressure would require a mother to terminate her genetic lineage.

I think this definitely shows that at least some of the cases of infanticide are simply a result of psychopathy, though this does not exclude the possibility that other cases are because of evolutionary pressures. This could be seen as true for other cases of murder, i.e. all murders are not based on the need to propagate one's genes, some are simply the result of intense mental disorder. My question, however, is why was this woman allowed to keep her children after she once thought God was telling her to commit suicide? It seems as though someone should have stepped in a bit earlier.

I agree that it is a case of psychopathy, but I think that evolutionary pressures can sort of apply as well. Perhaps a parent with genes for psychosis will probably pass on those genes, and for the parent to kill the offspring is an insurance that the genes will not be propogated further. I don't know, maybe it could be natural selection as a byproduct of psychosis.

There are instances where mothers commit infanticide, and instances where mothers unconsiously self-abort. However, here the mother gave no reason for "cutting her losses" to improve the chances of having future offspring with better survival chances, and that is why I believe that this instance shows a case of psychopathy.

I see your point. However, by no means was I saying the mom is killing her offspring because she knows they may someday be psychotic and she consciously thinks she can have perfectly fine offspring now that they are gone. I meant that perhaps the genes that cause her psychosis are also the genes that caused her to want to kill her offspring. I'm not sure if I'm articulating it the right way, but when I said "natural selection as a byproduct of psychosis", I meant it at the genetic level.

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