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 -
is perhaps the finest author in contemporary science fiction -- and the most rarefied.
A technical writer by trade and a graduate of the distinguished Clarion Writers Workshop
, Chiang has published only twelve short stories in the last twenty years, one dozen masterpieces of the genre whose insightful, precise, often poetic language confronts fundamental ideas -- intelligence, consciousness, the nature of God -- and thrusts them into a dazzling new light.
Click inside for a complete listing of Chiang's work, with links to online reprints or audio recordings where available, as well as a collection of one-on-one interviews, links to his nonfiction essays, and a few other related sites and articles. [more inside]
posted by Rhaomi
on Dec 27, 2010 -
What if you could compute the output of complex algorithms just by viewing an image?
Our everyday visual perceptions rely upon unfathomably complex computations carried out by tens of billions of neurons across over half our cortex. In spite of this, it does not “feel” like work to see. Our cognitive powers are, in stark contrast, “slow and painful,” and we have great trouble with embarrassingly simple logic tasks.
Might it be possible to harness our visual computational powers for other tasks, perhaps for tasks cognition finds difficult? I have recently begun such a research program with the goal of devising ways of converting digital logic circuits into visual stimuli – “visual circuits” – which, when presented to the eye, “tricks” the visual system into carrying out the digital logic computation and generating a perception that amounts to the “output” of the computation. That is, the technique amounts to turning our visual system into a programmable computer.
posted by scalefree
on Mar 29, 2010 -
's 1984 book, Vehicles: Experiments in Synthetic Psychology
was a seminal work for its discussion of how one might design a system (biological or otherwise) in order to generate behavior like that seen in beings with brains. He embarks on a series of thought experiments in which he creates thirteen "vehicles"
through simple components that (arguably) display intelligent behavior, evolving in a Darwinian fashion to demonstrate what appears to be high-level cognition. [more inside]
posted by emilyd22222
on Jan 17, 2010 -
Don't Even Think About Lying
fMRI is poised to transform the security industry, the judicial system, and our fundamental notions of privacy. I'm in a lab at Columbia University, where scientists are using the technology to analyze the cognitive differences between truth and lies. By mapping the neural circuits behind deception, researchers are turning fMRI into a new kind of lie detector that's more probing and accurate than the polygraph, the standard lie-detection tool employed by law enforcement and intelligence agencies for nearly a century.
posted by robbyrobs
on Jan 5, 2006 -
Cognitive Daily reports nearly every day on fascinating peer-reviewed developments in cognition from the most respected scientists in the field.
posted by srboisvert
on Mar 11, 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 -
2003 Reith Lectures.
Neuroscientist Vilayanur S. Ramachandran, Director of the Centre for Brain and Cognition at the University of California, talks about a number of fascinating neurological disorders and the insights they provide into mental functioning.
posted by srboisvert
on May 24, 2003 -
Elephants are people, too.
A new book by Steven M. Wise
, Drawing the Line
, marshalls the latest research on animal cognition in arguing for legal rights for some animals, especially gorillas, chimps, elephants, and gray parrots
. The author's previous book, Rattling the Cage
, forcused on primates, as many researchers and animal rights activists do. After all, we share at least 98% of our DNA with chimpanzees.
Other researchers are expanding our knowledge of animal cognition in the octopus
, even dogs
. See also: Next of Kin
and When Elephants Weep
posted by acridrabbit
on Sep 4, 2002 -
Monkeys are capable of abstract reasoning
according to recent research, which may have "profound implications for the evolution of human intelligence and the stuff that separates homo sapiens from other animals.
Just so long as there are enough bananas to go round, it's OK by me ...
posted by walrus
on Oct 16, 2001 -
FRANCISCO VARELA (1946 - 2001)*
One of the more quietly influential thinkers of our times. A neuroscientist turned immunologist whose formulation of the theory of autopoiesis (with Humberto Maturana) has challenged conventional thinking in areas as diverse as Artificial Intelligence, Ecology and AIDS research.The mathematics of self-reference involves creating formalisms to reflect the strange situation in which something produces A, which produces B, which produces A. That was 1974. Today, many colleagues call such ideas part of complexity theory.
On 28th of May, Varela's own autopoiesis ceased.
*pointer via fmh
posted by lagado
on Jun 6, 2001 -