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Robert Hughes, Jr.

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Do Genes Explain Why Divorce Affects Children In Different Ways?

Posted: 08/08/2012 12:25 pm

One of the most consistent research findings that explore the effects of divorce on children is that the results are inconsistent. Yes, that is what I meant to write. Thirty years of scientific study have concluded that there are no simple answers to the question about how children will be affected by divorce. In 2010 Paul Amato summarized current research and concluded, "A reasonable assumption is that divorce can have varied consequences, with some children showing improvements in well-being, other children showing little or no change, some children showing decrements that gradually improve and yet other children developing problems that persist into adulthood."

This does not mean that scientists have not gained insight into what is best for children. For example, there is persuasive evidence that children are more likely to have difficulties when they live in households with lower incomes, parents who are having difficulty adjusting and who are inconsistent in their parenting, and continue to be in conflict with their former partner. But despite these findings, there continues to be some children who weather even these difficult circumstances. "Why?" ask scientists. "What is different about these children?"

As we learn more about the role of biology in human development, there is a growing body of research that has been exploring the role of genes in the well-being of children. Could there be "protector" genes that make some children more invulnerable to their family circumstances? Are there genes that make children more at-risk of poor outcomes when there are family crises or transitions? The scientific story won't be any simpler than the current explanations about the consequences of divorce for children, but this work promises to provide us with a richer understanding of how our biological selves interact with the social environments of family, school, and neighborhood to result in who we become.

A recent study by Esther Nederhof and colleagues took a careful look how genes and family environment may influence outcomes for children whose parents were divorced. Nederhof and her colleagues followed a sample of over 1,000 Dutch adolescents from about 11 to 16 years of age. They looked at families in which both parents were married and families in which there was a divorce. The scientists measured several dopamine genes that have been shown to be important in understanding aggressive and antisocial behaviors and have been connected to variations in other social environments. Children's aggressive and antisocial behavior which has been commonly linked to divorce was also measured.

In this study, the scientists were particularly interested in comparing adolescents with and without specific dopamine genotypes and the marital status of their parents; they looked at antisocial and aggressive behavior in each group. In part, the scientists hypothesized that "some individuals carry a genetic liability that predisposes them to problematic functioning (e.g., antisocial behavior, depression) when confronted with a contextual stressor [such as the divorce of their parents]." The results indicate that that two of the three dopamine genotypes tested showed these types of results. Adolescents whose parents had divorced were more likely to engage in antisocial behavior if they had the dopamine genotype. If they did not have the genotype, then their antisocial behavior was similar to adolescents whose parents had not divorced. In short, for those adolescents without the specific dopamine genotype, the marital status of their parents was not a factor in the amount of antisocial behavior they displayed. This evidence indicates that children with a particular genetic makeup are more vulnerable to difficulties due to their parent's divorce.

Often there are findings that indicate that boys are more likely than girls to be antisocial. It is worth noting that this genetic and marital status pattern held true for both adolescent boys and girls. Girls with divorced parents and the specific dopamine genotype also had more antisocial behavior.

So where does this leave us? Should parents planning to divorce get their children's genes tested? No. This is an early study that looks at these issues. Scientists are a long way from drawing firm conclusions about the role of genes in development and about the ways in which genes and the social environment interact. However, this is a reminder that understanding the effects of divorce on children's development is complicated. At present scientists can provide some general, useful guidelines for parents (See Robert Emery, The Truth about Children and Divorce and JoAnne Pedro-Carroll, Putting Children First), but there are few absolutes in the parenting of children.

 
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One of the most consistent research findings that explore the effects of divorce on children is that the results are inconsistent. Yes, that is what I meant to write. Thirty years of scientific study ...
One of the most consistent research findings that explore the effects of divorce on children is that the results are inconsistent. Yes, that is what I meant to write. Thirty years of scientific study ...
 
 
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08:58 AM on 08/14/2012
Thanks for your article. It was interesting. Huffpost - I'd like to see an article about the positive impact divorce can have on kids. For example, kids of divorced parents are more likely to divorce possibly BECAUSE they have learned by example that there are certain lines you don't cross. I've a friend in an abusive marriage who, after 10 months separation, went back to her abuser. My kids, on the other hand, have thrived since the divorce. They are more secure and even get along better with each other. Home is now a pleasant, peaceful place and they are doing better away from an abusive father.
05:42 AM on 08/12/2012
It might have triggered something from the child but we cannot blame it all on the divorce.
01:09 PM on 08/10/2012
3 out of 4 of my kids do not want to see thier dad. 1 of them has had trouble with not seeing him and wants to learn more about him. Thier father is allowed to see the kids ONLY through supervised visits, as he was very abusive in every aspect and a serious drug/alcohol user. He has not cared enough to see them in that way and he had his priveleges removed from the supervising center. He has not paid any amount of child support in 7 years and I have full custody of all of my kids. 2 are now adults and want nothing much to do with thier father. I cannot understand why my 1 child would want to have anything at all to do with him, he has hurt everyone in my family so much. His own mother doesnt want anything to do with him. My kid says she feels sorry for him. I blame it on genetics.
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Zalkreb
10:11 AM on 08/09/2012
This discussion resembles one exploring what makes some people die in car crashes and others survive them. It's interesting, and that’s fine. If, however, rather than mere curiosity your concern is reducing car wreck fatalities, it makes a lot more sense to explore how to reduce the number and severity of car wrecks.

Are you with me?

Why do we endlessly discuss how to reduce divorce’s impact on kids and who's responsible for doing or not doing that without ever, ever, ever discussing who's responsible for divorce and how to reduce its frequency?

I have theories about that. They rest on the premise that we must never, never, never hold women responsible for their actions. If a woman does something bad, it must somehow be pinned on whatever man is in the vicinity. If a woman initiates divorce, as they do more than twice as often as men, it must somehow be the man’s fault, though he committed no serious breach of the martial compact and opposed the divorce (as the children almost certainly did as well.)

How about this: Let’s face the facts. Women drive the phenomenon of divorce, they drive it in search of their own personal fulfillment, they drive it to the lasting and profound detriment of children, grandparents, in-laws, society and, as if anyone cared, fathers. And they are encouraged and incentivized to do so. Could we do that?
06:07 AM on 08/10/2012
What change would you recommend? What would you say to stop women from leaving? Additionally, why would anyone want to remain married to someone that no longer wanted them? Divorce hurts everyone and its a selfish act but encouraging women to stay married to someone because its the best for the husband or kids is selfish as well. I haven't gotten divorced but I can say that children will not be included in my decision to stay or divorce their father. I would want joint custody and wouldn't want child support or any type of spousal support. I wouldn't keep my children from their father but if I am to the point that I hate coming home and I'm miserable all the time, I'm not staying married.
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Zalkreb
01:23 PM on 08/12/2012
I have lots of ideas, many of them backed by research, about what could be done to improve the way we handle divorce. For instance, I think that marriage licenses should not be issued without both parties agreeing to an exit plan for dissolving the arrangement. This is basic business partnership operating procedure and, whatever else a marriage is, it's also a partnership.

The main thing, though, is a rebuttable presumption of equal physical custody of children. This would end the nearly universal practice of automatically awarding primary custody to any mother who can fog a mirror. Children would not lose the active involvement of a fit and loving parent. Fathers would not lose the right to parent their children. Mothers would have fewer child-related expenses and more time to pursue education or career advancement. If we could get that, I think we'd have made a huge step forward.

As an aside, I think more men should be made aware that, whatever "till death do you part" vows their brides make at the altar or before the ceremony, at least a large minority of them are really promising only that they will not renege as long as their husband is making them happy. I believe that, in fact, is what you are saying, isn't it?
03:56 PM on 08/10/2012
I AM divorced. My adopted son was 2.5 at the time. We were on vacation (his father didn't want to go) when I found out that my husband had met, been sleeping with and carrying on a relationship with a woman 1/2 his age. Based on your post - it sounds like you think I should have stayed with him.

I can only speak for myself - but there is no way on hell that I would stay married to someone that has such little respect for me. And I think sending THAT message to my son would be more detrimental to him than divorce.

I have a cordial relationship with my ex. He pays child support and sees my son every week.

Profound detriment caused by women? Hmmm....
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Zalkreb
11:29 AM on 08/12/2012
I'm sorry to hear about your experience. However, it's not typical. Based on many studies involving interviews with divorced people, infidelity is cited as a cause in a small minority of divorces. The most commonly cited reasons are, essentially, lack of emotional fulfillment.

The idea that unfaithful husbands are a primary driver for divorce is one of the many misconceptions about divorce that make it difficult to address the numerous, profound ailments inflicted by divorce on everyone except those who employ it in the pursuit of their personal happiness.

I believe -- and the law supports this -- that nobody should have to stay married to anybody if they don’t want to. I also believe, although I am not supported by law or practice in this, that women should not be excused, praised and incentivized for employing divorce to improve their feelings of emotional fulfillment while keeping everything of value in a relationship, including children and their former partner’s future income, and in the process damaging children, grandparents, in-laws and fathers.

You will notice that women never, ever choose to deal with unsatisfactory relationships by voluntarily evicting themselves from their homes, becoming occasional visitors in their children’s lives and paying their former partners a third or so of their future income. When fathers and children are paying the price, however, divorce seems pretty palatable. I’d like to see that change.
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Aerosol
10:27 PM on 08/08/2012
It makes sense that a kid with an antisocial gene would be more disturbed by parents divorce. The real reason that researchers are baffled by kids' reactions, though, is because no one listens to the kids. Or, kids don't talk because they don't want the social worker showing up.
07:42 PM on 08/08/2012
No offense to the author but this "study" seems kind of pointless. Kids are just soft these days, end of story.
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Vicki Larson
Journalist, mom, always questioning
07:32 PM on 08/08/2012
There's no denying genetics has some influence over human behavior. (http://omgchronicles.vickilarson.com/2012/02/02/putting-love-and-fidelity-to-the-test/) Whether we could — or should — do anything with that sort of knowledge is a different matter.