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 -
The Brain on Trial.
Advances in brain science are calling into question the volition behind many criminal acts. A leading neuroscientist describes how the foundations of our criminal-justice system are beginning to crumble, and proposes a new way forward for law and order.
"We may someday find that many types of bad behavior have a basic biological explanation—as has happened with schizophrenia, epilepsy, depression, and mania." [more inside]
posted by Eideteker
on Jul 15, 2011 -
Swimming around in a mixture of language and matter, humans occupy a particular evolutionary niche mediated by something we call 'consciousness'. To Professor Nicholas Humphrey we're made up of "soul dust
": "a kind of theatre... an entertainment which we put on for ourselves inside our own heads." But just as that theatre is directed by the relationship between language and matter, it is also undermined by it
. It all depends how you think it.
posted by 0bvious
on Feb 4, 2011 -
Ecstasy's long-term effects revealed.
"Enough time has finally elapsed to start asking if ecstasy damages health in the long term. According to the biggest review ever undertaken
, it causes slight memory difficulties and mild depression, but these rarely translate into problems in the real world. While smaller studies show that some individuals have bigger problems, including weakened immunity and larger memory deficits, so far, for most people, ecstasy seems to be nowhere near as harmful over time as you may have been led to believe." [Via]
posted by homunculus
on Feb 12, 2009 -
"Their idea is, in broad outline, straightforward.
and Dr. Badcock
propose that an evolutionary tug of war between genes from the father’s sperm and the mother’s egg can, in effect, tip brain development in one of two ways. A strong bias toward the father pushes a developing brain along the autistic
spectrum, toward a fascination with objects, patterns, mechanical systems, at the expense of social development. A bias toward the mother moves the growing brain along what the researchers call the psychotic spectrum, toward hypersensitivity to mood, their own and others’. This, according to the theory, increases a child’s risk of developing schizophrenia
later on, as well as mood problems like bipolar disorder and depression."
posted by grumblebee
on Nov 11, 2008 -
First Person Plural.
"An evolving approach to the science of pleasure suggests that each of us contains multiple selves—all with different desires, and all fighting for control. If this is right, the pursuit of happiness becomes even trickier. Can one self bind another self if the two want different things? Are you always better off when a Good Self wins? And should outsiders, such as employers and policy makers, get into the fray?" [Via]
posted by homunculus
on Oct 25, 2008 -
SexID Some researchers say that men can have 'women's brains' and that women can think more like men.
Find out more about 'brain sex' differences by taking the Sex ID test, a groundbreaking experiment designed by a team of top psychologists:
posted by srboisvert
on Mar 8, 2005 -
The McCollough effect
is a visual illusion somewhat similar to regular color aftereffects, but the working mechanism is different, and despite a wealth of theories
, not entirely explained. Once the effect is established, it does not seem to go away and can last for days or even weeks. Proceed at your own risk.
posted by ikalliom
on Apr 10, 2004 -