Children with normal IQs demonstrated peak cerebral gray matter thickening around the age of 8, whereas those with high IQs did so around the age of 13. This is elaborated on below.
Generally, intelligence quotient {IQ} is simply defined as a score on the IQ test A numerical score indicates a person's level of thinking.
In conclusion, At approximately the age of 13, children with high IQ scores saw a thickening of the brain.
Read more about intelligence quotient {IQ}
brainly.com/question/9642364
#SPJ1