The correlation between brain mass and intelligence is suggestive.
The correlation is higher for CAT scans of the brain and intelligence.
I would suggest the larger the brain the longer it would take to educate it
and you may not immediately observe what we call higher intelligence.
There are interesting exceptions where people with significantly small
brains were very intelligent.
Because of my current interest in oscillations it is possible that a larger
brain would require a longer slower wavefunction to analyze and store data.
This speed could be one hertz or 1/4 of a hertz. If true intelligence may
have very little to do with speed of response but having the time to
consolidate and have data interact and interfere with itself. The bigger
the brain the longer the time it would take to do this. The smaller the
brain the quicker a response would be generated. If slow brain modulations
are related to intelligence in principle they could be taught to people with
biofeedback and by definition intelligence would be related to experience
----- Original Message -----
From: "Miles Robinson" <m-robinson7 at northwestern.edu>
To: <neur-sci at hgmp.mrc.ac.uk>
Sent: Wednesday, September 12, 2001 6:49 PM
Subject: Brain Mass Concepts
> I have a basic question about brain mass studies. It has been supposed
> that the brain mass to body mass ratio can give realtively good
> measure of "intelligence". However, when looking at the brain as a control
> system for the body, it's hard to overlook that fact that a larger body
> does not necissarily require a larger brain to maintain equivalent
> functionality. For example, a single muscle doesn't require more neurons
> it gets larger during the evolutionary process as far as I can see. I
> this way because an entire muscle moves together and thus the whole organ
> gets the same signal from the brain, so why is it necessary for multiple
> neurons to control something that only requires as single signal? Is it
> more reasonable to use the critera of number of organ systems or
> vs. brain mass to quantitatively evaluate intelligence? Or better yet the
> number of body systems to brain divisions?
> Your attention appreciated
> EE student at Northwestern U.
> (Not a neuroscience student)