Re:Relationships between Depression and High Intellectual Po...
by SatvikBeri on Sunday May 26, 2013 @11:23AM
(#5771306)
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...
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