04-28-2008, 01:27 AM
04-29-2008, 04:04 PM
Iq's are just numbers - also, I read that the younger you are when you take them the better chance of getting numbers that are higher and second highest is those that are "older". Teenagers score lower due to their brain physiology is changing. Alot of pruning of branches and stuff. Gosh I am bad at relaying articles I have read in the past...
I am not a doctor nor do I act like one.
I am not a doctor nor do I act like one.
04-29-2008, 04:18 PM
This isn't the study but a smaller one similar to it, this article is not on IQ, but it talks about the brain changes.
In the past decade, brain changes in adolescence have become the subject of intensive research,” Campbell said.
He and a colleague, Irwin Feinberg, a UC Davis psychiatrist, attached EEG recorders to the skulls of children in groups – one of 9-to 11-year-olds, the other of 12-to 14-year-olds. As the children slept, the devices showed the brain waves were 25 percent weaker in the older children than in the younger ones, the scientists reported in the December issue of the American Journal of Physiology.
These waves are produced by electrical vibrations in brain cells, or neurons. The more neurons vibrate in concert, the stronger the wave.
Campbell compared the effect to “crowd noise within a stadium. When all the members of the crowd yell together, the noise is very loud.” Similarly, in the brain, he said, “the intensity is strongly affected by the number of neurons oscillating in unison.”
Synaptic pruning is a good thing. It brings about “an improvement in speed in information processing and a greater ability to build the long neuronal chains required for complex problem-solving,” Campbell said. “There are situations in which less is more.”
In the past decade, brain changes in adolescence have become the subject of intensive research,” Campbell said.
He and a colleague, Irwin Feinberg, a UC Davis psychiatrist, attached EEG recorders to the skulls of children in groups – one of 9-to 11-year-olds, the other of 12-to 14-year-olds. As the children slept, the devices showed the brain waves were 25 percent weaker in the older children than in the younger ones, the scientists reported in the December issue of the American Journal of Physiology.
These waves are produced by electrical vibrations in brain cells, or neurons. The more neurons vibrate in concert, the stronger the wave.
Campbell compared the effect to “crowd noise within a stadium. When all the members of the crowd yell together, the noise is very loud.” Similarly, in the brain, he said, “the intensity is strongly affected by the number of neurons oscillating in unison.”
Synaptic pruning is a good thing. It brings about “an improvement in speed in information processing and a greater ability to build the long neuronal chains required for complex problem-solving,” Campbell said. “There are situations in which less is more.”
05-01-2008, 03:47 AM
I have been meaning to say that to batman, but as I don't think IQ tests are an accutate accounting of a person I was less inclined.
Someone has to have the average number, the average height, the average weight. SOmeone has to have the lowest, the highest. My ds has the lowest #'s when it comes to math - last year Ithink he scored in the 5th percentile for math. This year I think 25th percentile. No where near average, now math is something that would be helpful for him as he needs to figure out how to buy video games and get the right change. WAYY more important than a silly IQ #
Someone has to have the average number, the average height, the average weight. SOmeone has to have the lowest, the highest. My ds has the lowest #'s when it comes to math - last year Ithink he scored in the 5th percentile for math. This year I think 25th percentile. No where near average, now math is something that would be helpful for him as he needs to figure out how to buy video games and get the right change. WAYY more important than a silly IQ #