But I Did Everything Right!

 
Sponsored by
 
 

Email To A Friend

Please fill in the following information and we'll email this link.

Separate multiple addresses with commas

 

• The gene variant that influences whether children learn from their mistakes. With the misspelled gene, brains have about 30 percent fewer dopamine receptors and less activity in the brain's frontal cortex (the site of higher-order thinking, including monitoring negative feedback) and hippocampus (memory) than do people with the more common form of the gene. In an experiment at the Max Planck Institute for Neurological Research in Germany, people with the misspelling weren't able to avoid choices that they were told over and over were incorrect. Numerous other studies have linked this gene variant to addiction, obesity and compulsive gambling, suggesting that the underlying problem is trouble learning the negative consequences of your actions.

• The DNA variant that affects whether a baby's brain development will be spurred by breast-feeding, which has been reported to confer an extra half-dozen or so IQ points by kindergarten. But not all breast-fed babies are little Einsteins, making their mothers wonder why all the milk-stained blouses didn't seem to boost cognitive development. The reason seems to be that there are two forms of a gene called FADS2. In the 90 percent of babies who carry the "C" form, breast-feeding raises intelligence by an average of nearly seven IQ points, scientists led by Terrie Moffitt and Avshalom Caspi of Duke University reported last year. This version of FADS2 produces an enzyme that helps convert the fatty acids in breast milk into compounds that help signals zip along brain neurons and spur neurons to sprout connections, which underlie intelligence, memory and creativity. The 10 percent of babies who carry the other form of the gene lack the enzyme and therefore derive no cognitive benefit from breast-feeding (though they still get an immune-system boost from it).

• DNA variants can protect children from bad parenting. For instance, most girls who are sexually abused are at higher risk for becoming alcoholics, as well as for developing other mental-health problems. But girls who have a "sluggish" version of the gene called MAOA seem to be vaccinated against this effect, reported scientists led by neurogeneticist David Goldman of the National Institute on Alcohol Abuse and Alcoholism last year. With the active version of MAOA, the brain's hippocampus—which processes emotional experiences and memories—becomes hyperactivated when it remembers something upsetting, such as abuse, and the woman turns to alcohol for solace. With the sluggish version, those memories lose their awful power. Another protective gene insulates children from the effects of an emotionally distant mother, one who is cold and uncaring, who turns away when her child feels the pain of a skinned knee no less than from a crushed dream. That is supposed to make a child more likely to develop "externalizing behavior," acting out in a bid for attention. But children with a certain form of a gene called DRD4, which stands for dopamine-receptor D4, are Teflon-coated, at little to no risk of becoming emotionally insecure as a result of mothers who are emotionally distant, found a 2007 study.

The discoveries questioning the connection between what parents do and how children turn out has not exactly taken the science of child development by storm. That seems to reflect a culture clash within the field. Most researchers who study child development were trained as psychologists, and—to overgeneralize, but only a little—are uncomfortable with or even suspicious of genetics. Geneticists tend to see behavioral research as squishy, not hard science. That produces a body of scientific literature that is remarkably ignorant of genetics. As we reported in this story, we were struck by how clueless so many "experts" in child development were about the new genetics—and how resistant they were to it. Almost all were unaware of the studies showing that genetics acts as a filter between environment and child, letting some influences in and keeping others out. "Even the stuff published in the best journals ignores the underlying genetics," says one leader in the field.

Since companies already offer storefront DNA tests, the day is not far off when parents can determine their child's MAOA or DRD4 status, or the presence of any other variant that influences the effect of parenting. But perhaps it is time to acknowledge that there is only so much influence parents can have. In her best-selling book "I Feel Bad About My Neck," Nora Ephron laments how American society "came to believe in the perfectibility of the child just as it also came to believe in the conflicting theory that virtually everything in human nature was genetic." Both views—that everything is genetic and that parents can transform a child like a lump of clay—are as wrong as wrong can be.

With Jeneen Interlandi and Anna Kuchment in New York and Karen Springen in Chicago

© 2008

Discuss

Sponsored by

Member Comments

  • Posted By: to much time @ 02/08/2009 3:44:31 PM

    I have always said when complemented on how well behaved one of my children turned out...I honestly don't know how much I actually contributed because he came out this way. Very much his own person..and when he entered his teens which became troubled after the death of his father, some tried to blame his behavior on his peers but I know my son makes his own choices. The social issue becomes once we realize that our parenting doesn't really impact the overall outcome that we hoped. And that good and bad choices are made because the child has a mind of their own then we have to realize that perhaps our own parents did the best that they could with what they had to work with, a child with their own free will. This of course means we would have to accept responsibility for our own lives and if it hasn't turned out the way we wanted then perhaps we only have ourselves to blame.

  • Posted By: shesgotagun! @ 09/05/2008 10:36:00 AM

    I almost agreed with this article, but after reading the 6th paragraph decided it was a crock of baloney. I was that mellow baby with the sweet temperment and my sister was always the fussy one. Years later, I became the succesful college student in who already has an engineering job secured after college, and my sister graduated high school with no motivation for college or even a job, and has anti-social tendancies. My parents raised us the same way, (and did a great job!), and are incredibly confused as to what happened. (My sister and I are 2 years apart) But there were other social factors that affected our outlook and motivation for life.
    Every child is different, no parent should simply categorize them the way this article does. Although there may be things that are out of your control, that doesn't mean it can be simply blamed on genetics. Most siblings start on a fairly even playing field, it's what happens socially, by parenting, family gatherings, school and church groups, etc. that builds their character.

  • Posted By: ykarpov @ 09/04/2008 3:54:38 PM

    I am very disappointed with this article. The major claims of the author are as follows: (a) all child psychologists believe that ???kids learn best when they are allowed to make mistakes and feel the consequences??? while totally ignoring the role of genetics in child development, and (b) genetics crucially determines ???why children turn out as they do???. Both these statements are highly disputable. Firstly, in contemporary child psychology, there are different schools of thought. Only one of these schools, constructivism, stresses the importance of children???s independent explorations for their development. But, another very powerful school of thought, nativism, stresses the major role of genotype in children???s development, in particular, in intellectual development. Secondly, and more importantly, the view of genotype as crucially determining the child???s developmental path, although supported by some influential psychologists, totally ignores the increasing pool of data that child development is vitally determined by the social environment. Yes, indeed, children???s temperaments, their speed of information processing, as well as some other aspects of their development are rooted in genotype. But, as early as in the 1930s, the famous psychologist A. Luria showed that specifically human higher level mental abilities (such as the use of mnemonics for memorization) are not determined by genes. Since then, psychologists have experimentally demonstrated how social influences (in particular, parenting and instruction) determine children???s development in each age period. For example, attachment (strong emotional bonds between infants and primary caregivers) has been shown both to be associated with parenting style and to predict later cognitive, social, and emotional development of the child. Adult mediation of children???s object-centered explorations during the second and third years of life has been proven to lead to the development of children???s language and symbolic thought. Helping children organize and enact their play during the period of early childhood has been shown to result in the development of their self-regulation, cognition, and social skills, which represent the major components of school readiness. It has been demonstrated that learning at school leads to the development of children???s formal-logical thought; what is important, a lack of schooling has been shown to result in serious deficiencies of formal-logical thought even in adults no matter what their genotypes were. Finally, it has turned out, that, in contrast with popular wisdom, even adolescents??? development (in particular, identity formation and the development of moral reasoning) is vitally determined by influences from significant adults. In light of these data, it is parents and teachers, not genetics, that crucially determine ???why children turn out as they do,??? no matter how comforting the opposite point of view may be for some parents and teachers.

Reply

Report Abuse

Enter comments if any for reporting abuse