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 Fat Trap (NYT pop review):
Overweight individuals in Western nations (and, increasingly, beyond
) face interpersonal and institutional stigma for their bodies*
. Oftentimes, these stigmas are predicated on the belief that being overweight is a moral failure
, that being overweight is usually a result of laziness, decadence, and/or characterlogical poor impulse control. However, an emerging consensus among obesity researchers points toward strong, common physiological and individual genetic factors
as causative for heightened BMIs in the modern world and the general failure of dieting to produce BMI outcomes. A recent study in the New England Journal of Medicine (paywalled)
adds to this body of evidence, suggesting that chemical messengers held to contribute to altered "efficient" metabolism and increased hunger in the wake of low-calorie dieting are (on average) significantly elevated up to a full year (if not longer) following a substantial drop in weight from dieting.> [more inside]
posted by Keter
on Dec 28, 2011 -
Dr. Joe Z. Tsien has previously created
a strain of mice unable to form memories, one with much improved memory - "Doogie" mice
- and can now erase single mouse memories. "Our work reveals a molecular mechanism of how that can be done quickly and without doing damage to brain cells." Remembering
posted by Kronos_to_Earth
on Oct 24, 2008 -
Are you a Highly Sensitive Person?
This trait ... is inherited by 15 to 20% of the population, and ... seems to be present in all higher animals. Being an HSP means your nervous system is more sensitive to subtleties. Your sight, hearing, and sense of smell are not necessarily keener .... But your brain processes information and reflects on it more deeply. Being an HSP also means, necessarily, that you are more easily overstimulated, stressed out, overwhelmed. This trait ... has been mislabeled as shyness (not an inherited trait), introversion (30% of HSPs are actually extraverts), inhibitedness, fearfulness, and the like. HSPs can be these, but none of these are the fundamental trait they have inherited ...
| latest research
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posted by grumblebee
on Apr 8, 2007 -
Predicting who'll benefit from anti-depressants
From the study's abstract: "There are well-replicated, independent lines of evidence supporting a role for corticotropin-releasing hormone (CRH) in the pathophysiology of depression." The NY Times has a bit more readable explanation
(reg-free link) of a recent investigation of into whether there is a genetic explanation for why some people get more from their drugs than others.
posted by billsaysthis
on Dec 18, 2004 -