Chimpanzees have a cranial capacity of about 400 cc, and a mean body weight of about 45 kg. If they weighed as much as a human in optimum physical shape, they’d be expected to have a cranial capacity of 498 cc.
Below is a chart showing the estimated average genetic IQ (i.e. the IQ they would have in First World middle class environments) of many human races, as a function of their average genetic brain size:
It is interesting to ask whether we can predict chimp IQ by extrapolating from human racial differences. When we enter the chimp brain size of 498 as X into the line of best fit, it predicts an IQ of only -46!
Could chimps really be that stupid?
Research suggests that on most cognitive tasks, chimps are at about the level of a Western 2.5-year-old, which equates to a deviation IQ of about 40 (U.S. white norms): 4 SD below the U.S. white mean.
On the Wechsler scales, if you average 4 SD below the mean on all subtests, your full-scale IQ is 5.71 SD below the mean, equating to an IQ of only 14.
So chimps probably have an IQ of perhaps as low as 14, which is 60 points higher than predicted from the population level correlation between IQ and brain size in humans.
The fact that human racial differences on the brain size-IQ dimensions does such a poor job predicting the IQ of our closest living relative, suggests there might be something very wrong with HBD data.
Pumpkin Person: The fact that human racial differences on the brain size-IQ dimensions does such a poor job predicting the IQ of our closest living relative, suggests there might be something very wrong with HBD data.
IQ should fit an exponential function rather than a linear function because even mice have some intelligence. Mammals have the neocortex and the neocortex is structured for a unique form of cognition. Models appear the more mass it gains. Elephants can draw pictures of elephants with trees and the sun next to them. Intelligence is not just about the amount of information you process but how you process it. Elephants would have the intelligence of a 10-year-old if they had hands with fingers. Humans have the connectome necessary to understand theory of mind in a way that allows them to understand that theory of mind exists. A crow knows that another crow will steal its food so hides it in hundreds of places and sets decoys. They crow does not know that the concept (theory of mind exists).
A chimpanzee has a digit span of about 20. I think this because it can remember numbers better than most humans. I can remember 5 numbers. My digit span IQ is 85. A chimps digit span IQ is 140. Yet my theory of mind is more developed. Development is not just about the amount of information but the quality of information. It is possible to have a high throughput in information processing yet have little development. Paradigm shifts do occur when you look at the differences in quality.
btw – I scored 251 milliseconds on the reaction time test. This is equivalent to an IQ of 118. The coefficient of WIAS 4 is 0.7 (I think?) So 0.7(18) is 12.6, My FSIQ was 113. I think my test results were off quite a bit on the WAIS 4 from my real intelligence. My (g) may be higher as well. (g) I think leads to paradigm shifts. (quality development, theory of mind)
Elephants are way smarter than chimps. 🙂
http://www.mind-development.eu/stages-development.html
I always find it hard to comprehend your posts. Just a tip dude: try to organize your thoughts. Use numbered lists, paragraphs, etc. Your poor working memory is probably to blame but you can compensate to some extent.
Hahaha
What do you think about my writing?
I’m saying you’re smart. It’s just that you lose your train of thought easily. Is that right?
don’t make him cry.
I hope not. The little I do understand tells me he’s smart. He just needs to be more organized.
I always strive for a level of clarity at which just about anyone can follow my argument. That way it can be scrutinized. Feedback, both positive and negative, is key to intellectual growth. If one’s writing is inscrutable, one misses out on feedback. Hence, he misses out on potential growth.
Organizing thought is a learned skill, it is important in law studies and social sciences, a little less in the STEM which appears to be his training. So he might not be used to that.
Dildos has got to be the greatest troll of all time. Whoever it is, I salute you sir.
You’re just seeing things that aren’t there and I know why.
It’s because, inter alia, I take a side that I appear to strongly reject. For ex, my posts about the negative effects of diversity. What you miss is that I’m simply wired this way. I can see all sides. I am simply more open minded than anyone else on this blog. I was gonna do some positive arguments for diversity but I’m lazy.
Hahahahaha. You’re the greatest.
Deal, stick around. I enjoy your input.
In a nutshell:
Quality>Quantity. Newer parts of the brain like the neocortex allow radically different things. I think I remember reading that the human brain shrank older parts of the brain and the phyiscal bodies muscularity and hardiness, to increase resources for newer parts like the frontal lobe and cortex. It makes sense evolutionary wise.
Many animals have mental abilities we do no have, or perhaps…may of had.
peepeee’s blog serves purposes which are not peepee’s.
she’s a very bad faker.
let’s stop this intra-desk trading peepeee-tard.
who’s your daddy?
What schizo delusion is it now Mug of Pee Tard?
Dumb bitch
tom karasch died in 1994 from AIDS.
fucking HILARIOUS!
Sorry Deal with It!, Mug of Pee’s not into women. He’s a closeted gay man.
MORE LIES!
RULE #1 OF PEEPEE…AKA “DEAL WITH IT!”…
EVERYTHING OUT OF HER MOUTH IS FALSE.
THUS SHE CAN BE TRAPPED.
LET’S DO IT!
We talk about hot guys all the time.
i have a better idea fat injun.
i fuck you until…
you beg for more…
or you shut your fake blog down.
Money is meant to be spent, otherwise it’s just paper.
You can’t get a meaningful IQ score for chimps. Might as well subject random Koreans to the LSAT.
“The fact that human racial differences on the brain size-IQ dimensions does such a poor job predicting the IQ of our closest living relative, suggests there might be something very wrong with HBD data.”
Indeed, you should try using scientific data instead.
Isss not the brain size, isss the blood flow physiology delivering oxygen and the dendrite wiring within the bwain.
Philosopher gets it. I have data on number of neurons in animals compared to humans on my laptop. I’ll post it when I get home this afternoon.
Ok now I’m genuinely scared. I might be the only mentally sane person on this blog. I’ll add this to my list of reasons to leave.
Hahahahaha this is too much…hahahaha.
Roses are red, violets are blue, I’m schizophrenic, and so am I.
Deal with it is Pumpkin Person.
Whyy, thats a maghty lot o effort, for a maghty lot of laffin son.
You guys, Mugabe and you, are scaring me. Cut it out. If you genuinely believe I’m prepare you’re a schizo.
And I’ve never lied about a single thing.
If Philosofool thinks we’re the same person, he has a MUCH lower social IQ than the autistics he so looks down on. Even the people who wear rain coats in doors are laughing at Philosofool and Mug of Pee’s low social IQ.
Peepee**
I’m mentally sane as well.
Steve Sailer has Pumpkin on his blogroll. That’s an honour. Steve was the first to talk about this stuff openly in a systematic way.
Philosopher are you serious?
Dear god, what am I doing here in the lunatic asylum?
And are you serious about being an ‘alpha male who’s in touch with his feminine side and sees the genius of oprah that others are too sexist to see?’.
It’s sad when a Mother has to speak the words that condemn her own son, but I couldn’t allow them to believe that I would commit murder. They’ll put him away now, as I should have years ago. He was always bad and in the end, he intended to tell them I killed those girls and that man, as if I could do anything except just sit and stare, like one of his stuffed birds.
Oh, they know I can’t even move a finger, and I won’t. I’ll just sit here and be quiet, just in case they do suspect me. They’re probably watching me. Well, let them. Let them see what kind of a person I am. I’m not even gonna swat that fly. I hope they are watching. They’ll see. They’ll see and they’ll know, and they’ll say, ‘Why, she wouldn’t even harm a fly.’
“The fact that human racial differences on the brain size-IQ dimensions does such a poor job predicting the IQ of our closest living relative, suggests there might be something very wrong with HBD data.”
Because amount of neurons matters, not overall brain size.
https://notpoliticallycorrect.me/2016/12/28/what-caused-human-brain-size-to-increase/
https://notpoliticallycorrect.me/2016/12/26/the-human-brain-is-not-particularly-special-a-new-way-of-looking-at-the-human-brain/
More specifically, the amount of neurons in the cerebral cortex matters the most. Humans have the most at 16 billion. 86 billion neurons in total. I’ll get figures for chimpanzees later from my book.
HBD should look at amount of neurons, not overall brain size.