Well that makes sense because IQ is dependent on a wide variety of factors in addition to genetics. The nutrition of the mother as well as exposure to certain chemicals during the pregnancy plus actions/drugs used during the birth can play as large if not greater part in the IQ of a child as genetics.
The child's treatment during formative years 0-7 will have an immense impact on whether certain predispositions (I.E. psychopathic tendencies) are expressed later in life.
Dr. James Fallon, who was part of a documentary I saw a while back, was describing how he was shocked to discover that he had the brain of a psychopath, but his life turned out very differently because (and I'm paraphrasing) "when I look back at picture albums of my childhood, I'm always seeing smiles".
The nutrition of the mother as well as exposure to certain chemicals during the pregnancy plus actions/drugs used during the birth can play as large if not greater part in the IQ of a child as genetics.
Interesting. Identical twins raised separately have a correlation of .76, while fraternal twins raised together have a correlation of just .55 and non-twin siblings raised together have a correlation of .47[0]. To me that suggests a strong genetic (though not necessarily heritable) component. And perhaps the .08 difference between fraternal twins and non-twin siblings is explained by differences in the mother's nutrition.
How do you measure the effect of nutrition? What studies are you looking at?
Comments
Well that makes sense because IQ is dependent on a wide variety of factors in addition to genetics. The nutrition of the mother as well as exposure to certain chemicals during the pregnancy plus actions/drugs used during the birth can play as large if not greater part in the IQ of a child as genetics.
The child's treatment during formative years 0-7 will have an immense impact on whether certain predispositions (I.E. psychopathic tendencies) are expressed later in life.
Dr. James Fallon, who was part of a documentary I saw a while back, was describing how he was shocked to discover that he had the brain of a psychopath, but his life turned out very differently because (and I'm paraphrasing) "when I look back at picture albums of my childhood, I'm always seeing smiles".
http://en.wikipedia.org/wiki/James_Fallon
The nutrition of the mother as well as exposure to certain chemicals during the pregnancy plus actions/drugs used during the birth can play as large if not greater part in the IQ of a child as genetics.
Interesting. Identical twins raised separately have a correlation of .76, while fraternal twins raised together have a correlation of just .55 and non-twin siblings raised together have a correlation of .47[0]. To me that suggests a strong genetic (though not necessarily heritable) component. And perhaps the .08 difference between fraternal twins and non-twin siblings is explained by differences in the mother's nutrition.
How do you measure the effect of nutrition? What studies are you looking at?
[0]: http://en.wikipedia.org/wiki/Heritability_of_IQ#Correlations...
Here you go :
http://www.ncbi.nlm.nih.gov/pubmed/20937654