Is Psychometric g a Myth?
- "As an online discussion about IQ or general intelligence grows longer, the probability of someone linking to statistician Cosma Shalizi's essay g, a Statistical Myth
approaches 1. Usually the link is accompanied by an assertion to the effect that Shalizi offers a definitive refutation of the concept of general mental ability, or psychometric g
." [more inside]
posted by kliuless
on Apr 11, 2013 -
Impressed and alarmed by advances in artificial intelligence, a group of computer scientists is debating whether there should be limits on research that might lead to loss of human control over computer-based systems that carry a growing share of society’s workload, from waging war to chatting with customers on the phone. From the NYT: Scientists Worry Machines May Outsmart Man
posted by flapjax at midnite
on Jul 26, 2009 -
Genes Reveal Recent Human Brain Evolution.
Two important new papers
in the journal Science
) from the evolutionary geneticist and rising star, Bruce T. Lahn (see this
recent profile from The Scientist
), are potentially the tips of some very large icebergs. The papers document how two genes related to brain properties that underwent strong selection during the course of hominid evolution, have continued
undergoing strong selection since the emergence of anatomically modern man. The papers wonderfully illustrate how biological evolution is an ongoing process
as well as the artificial distinction
between “micro” and “macro” evolution, and promise to be controversial for two reasons: First, the brain genes underwent the strongest selection during two periods
of cultural and technological efflorescence (roughly 37,000 and 5,800 years ago). Second, the genes are distributed very differently in modern human population groups, existing at very high frequencies in some groups and being very rare in others, ensuring that the modern function of these genes will be a source of more research and much impassioned debate. More observations
from anthropologist John Hawks.
posted by Jason Malloy
on Sep 8, 2005 -
Nootropics ("smart" drugs)
- all wish to be smarter, correct ? And - while exercise, nutrition, learning, travel, and social interaction (the last 3 via release of neurotrophins
) effectively do this, Nootropic drugs have been researched since the 1950's and have been shown to cause at least short term cognitive function enhancement. Piracetam, the first of this drugs, shows promise
in the treatment of Alzheimer's and Attention deficit Disorder. Alas, as with poor little Algernon
, the effect seems temporary
. Nootropics can be a little difficult to acquire
in the US. Beer is not a nootropic, but sex on the other hand.....
posted by troutfishing
on Mar 5, 2004 -
Musicians are really smart
. They have larger and more sensitive brains than non-musicians, and their collective IQ is much higher. They have 130% more grey matter in one area of their auditory cortexes. The question of how this explains Ozzy Osbourne nonwithstanding, I'll bet if you're really, really smart, you could be one of the new members of Men Without Hats
. Must be very knowledgeable in midi, sequences, and sampling.
posted by iconomy
on Jun 25, 2002 -
Is intelligence hereditary or environment? A new theory
sees the brain as a plastic mold of potential with the more neuron connections the better [hereditary] and environment stimulation shapes the mold untill maturity. "You could present a person with an IQ of 200 with the appropriate phenomena when they are 20 years old, after the critical learning period, and they would not have the capacity to adapt their brains to the new phenomena".
People of low IQ perform poorly because their brains do not adapt well to environmental stimulation.
posted by stbalbach
on Jan 21, 2002 -
Playing computer games makes kids smarter?
Although it reads like a headline from The Onion
, a British study funded by the ESRC has come to that conclusion. "They seemed able to focus on what they were doing much better than other people and also had better general co-ordination. Overall there was a huge similarity with top-level athletes."
Gotta go and show this to my boss...
posted by jedrek
on Jul 22, 2001 -
an organization called earthtrust started project delphis in 1985 to determine how intelligent and self-conscious dolphins actually are.
this is very
posted by bwg
on Apr 5, 2001 -