Does Larger Brain Size Indicate Greater Intelligence?

AI Thread Summary
The discussion centers on the relationship between brain size, head size, and intelligence. It suggests that larger brain size or head size does not necessarily correlate with greater intelligence. Instead, the development of specific brain regions may be more significant than overall brain size. A referenced report from a conference highlights the neural correlates of general intelligence (g), indicating that the complexity of brain structure and function could play a more crucial role. The brain-to-body weight ratio is mentioned as a popular yet flawed theory in this context, emphasizing the need for a nuanced understanding of intelligence beyond mere size metrics.
rhia
Messages
37
Reaction score
0
Does larger brain size or brain/body wt. mean greater intelligence?
Does a larger head mean more brain and hence greater intelligence?
 
Biology news on Phys.org
rhia said:
Does larger brain size or brain/body wt. mean greater intelligence?
Does a larger head mean more brain and hence greater intelligence?

Maybe not brain size as a whole, but development of certain parts of the brain. See http://www.loni.ucla.edu/~thompson/HBM2003/isir2003ALL.html report from a conference on the neural correlates of g.
 
Last edited by a moderator:
One of the more popular theories (but still very much flawed) is the brain/body ratio.
 

Thread 'Chagas disease now established in US'

Chagas disease, long considered only a threat abroad, is established in California and the Southern U.S. According to articles in the Los Angeles Times, "Chagas disease, long considered only a threat abroad, is established in California and the Southern U.S.", and "Kissing bugs bring deadly disease to California". LA Times requires a subscription. Related article -...
View full post »

Thread 'I need help understanding this quote about recent Natural Selection'

I am reading Nicholas Wade's book A Troublesome Inheritance. Please let's not make this thread a critique about the merits or demerits of the book. This thread is my attempt to understanding the evidence that Natural Selection in the human genome was recent and regional. On Page 103 of A Troublesome Inheritance, Wade writes the following: "The regional nature of selection was first made evident in a genomewide scan undertaken by Jonathan Pritchard, a population geneticist at the...
View full post »

Thread 'Fermentation using mixed legume and grain feedstock'

I use ethanol for cleaning glassware and resin 3D prints. The glassware is sometimes used for food. If possible, I'd prefer to only keep one grade of ethanol on hand. I've made sugar mash, but that is hardly the least expensive feedstock for ethanol. I had given some thought to using wheat flour, and for this I would need a source for amylase enzyme (relevant data, but not the core question). I am now considering animal feed that I have access to for 20 cents per pound. This is a...
View full post »

Similar threads

How a-priori intelligence is even possible?
Replies
29
Views
3K
Contradictory statements made by two different professors about IQ scores
Replies
24
Views
3K
A Brain Shrinking Domestication Event
Replies
1
Views
1K
Human Brain Evolution: 2 Studies Examined
Replies
1
Views
2K
Human body growth in the absence of a brain
Replies
4
Views
2K
Animal Intelligence Distribution
Replies
4
Views
2K
Is IQ a Misleading Measure of Intelligence?
Replies
2
Views
2K
Evolution of the Human Mind: Understanding Brain Development Over Time
2
Replies
58
Views
8K
Can we move the brain cortex up and down?
Replies
8
Views
2K
Dog Brains have been Modified by Recent human Selection
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top