samedi 20 avril 2013

Sleep duration and IQ: confusing data or confusing conceptions?

 2010 Mar;11(3):289-94. doi: 10.1016/j.sleep.2009.09.007. Epub 2010 Feb 13.

Short sleep duration is associated with poor performance on IQ measures in healthy school-age children.


Douglas Mental Health University Institute and McGill University, Montreal, Quebec, Canada.



To examine the associations between habitual sleep duration and intellectual functioning in healthy, well-rested, school-age children.


The study group consisted of 39 healthy children, aged 7-11 years old. Nightly actigraphic sleep recordings were taken for four consecutive nights to determine habitual week-night sleep duration in the home environment. Objective measures of cognitive functioning and sleepiness were used to measure daytime functioning.


Longer habitual sleep duration in healthy school-age participants was associated with better performance on measures of perceptual reasoning and overall IQ, as measured by the WISC-IV, and on reported measures of competence and academic performance. No association between sleep duration and the studied behavioral measures was found.


These findings support the hypothesis that sleep duration is differentially related to some components of cognitive functioning, even in the absence of evidence for sleep deprivation or attention deficits.

"Studies involving children and adults have identified a significant relationship between poor or insufficient sleep and decreased cognitive capacity (Beebe, 2011Bell-McGinty et al., 2004Busby and Pivik, 1983,Caldwell et al., 2005Carskadon et al., 1981Chee and Choo, 2004Chee et al., 2006Choo et al., 2005,Dewald et al., 2010Fallone et al., 2001Gozal and Kheirandish-Gozal, 2007Gruber et al., 2010Habeck et al., 2004Lim et al., 2007Mu et al., 2005aMu et al., 2005bNixon et al., 2008Randazzo et al., 1998,Sadeh et al., 2003Schabus et al., 2006Touchette et al., 2007Voderholzer et al., 2011 and Wilhelm et al., 2012)."


The function of the sleep spindle: A physiological index of intelligence and a mechanism for sleep-dependent memory consolidation

  • a University of Montreal, Montreal, Quebec, Canada, H3W 1W5
  • b Department of Psychology, Trent University, Peterborough, Ontario Canada, K9J 7B8


Until recently, the electrophysiological mechanisms involved in strengthening new memories into a more permanent form during sleep have been largely unknown. The sleep spindle is an event in the electroencephalogram (EEG) characterizing Stage 2 sleep. Sleep spindles may reflect, at the electrophysiological level, an ideal mechanism for inducing long-term synaptic changes in the neocortex. Recent evidence suggests the spindle is highly correlated with tests of intellectual ability (e.g.; IQ tests) and may serve as a physiological index of intelligence. Further, spindles increase in number and duration in sleep following new learning and are correlated with performance improvements. Spindle density and sigma (14–16 Hz) spectral power have been found to be positively correlated with performance following a daytime nap, and animal studies suggest the spindle is involved in a hippocampal–neocortical dialogue necessary for memory consolidation. The findings reviewed here collectively provide a compelling body of evidence that the function of the sleep spindle is related to intellectual ability and memory consolidation.

Mother care is of mammalian origin

Current Biology
Available online 18 April 2013

Infant Calming Responses during Maternal Carrying in Humans and Mice

  • 1 Unit for Affiliative Social Behavior, RIKEN Brain Science Institute, Wako-shi, Saitama 351-0198, Japan
  • 2 Laboratory for Molecular Dynamics of Mental Disorders, RIKEN Brain Science Institute, Wako-shi, Saitama 351-0198, Japan
  • 3 Department of Psychology and Cognitive Science, University of Trento, Rovereto, Trento 38068, Italy
  • 4 Department of Clinical Laboratory, Saitama Children’s Medical Center, Saitama-shi, Saitama 339-8551, Japan
  • 5 Division of Neonatology, Saitama Children’s Medical Center, Saitama-shi, Saitama 339-8551, Japan
  • 6 Companion Animal Research, School of Veterinary Medicine, Azabu University, Sagamihara-shi, Kanagawa 252-5201 Japan
  • 7 Department of Otorhinolaryngology, Juntentdo University School of Medicine, Bunkyo-ku, Tokyo 113-8421, Japan
  • 8 Department of Biochemistry and Cellular Biology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira-shi, Tokyo 187-8551, Japan



Mother-infant bonding is the earliest and most critical social relationship of mammalian infants. To promote this bond, infants have innate behaviors to seek maternal proximity and protest upon separation via communication with the mother vocally and through body movement. However, the physiological mechanisms regulating these infant behaviors remain largely undefined.


Here we show a novel set of infant cooperative responses during maternal carrying. Infants under 6 months of age carried by a walking mother immediately stopped voluntary movement and crying and exhibited a rapid heart rate decrease, compared with holding by a sitting mother. Furthermore, we identified strikingly similar responses in mouse pups as defined by immobility and diminished ultrasonic vocalizations and heart rate. Using pharmacologic and genetic interventions in mouse pups, we identified the upstream and downstream neural systems regulating the calming response. Somatosensory and proprioceptive input signaling are required for induction, and parasympathetic and cerebellar functions mediate cardiac and motor output, respectively. The loss of the calming response hindered maternal rescue of the pups, suggesting a functional significance for the identified calming response.


Our study has demonstrated for the first time that the infant calming response to maternal carrying is a coordinated set of central, motor, and cardiac regulations and is a conserved component of mammalian mother-infant interactions. Our findings provide evidence for and have the potential to impact current parenting theory and practice, since unsoothable crying is the major risk factor for child abuse.

A gay couple and its nine adopted children: far from paradise

But heterosexual man without inhibition of abusing his own children can do more:

And a criminal lesbian woman killed her son, you know why?
"Four-year-old Jandre Botha refused to call his mother's lesbian lover "daddy" - and paid with his life."

Théorie du genre = créationnisme social

Bien sur quand on dit créationnisme c'est une bronca! 

Qui peut être adepte d'une telle ineptie? Et bien la gogoche et LGBT (annexe de la première et sans aucune représentativité) en sont là: au créationnisme social. 

La Queer theory est un créationnisme

Vous n'êtes pas le fils de deux êtres non vous êtes SOZIAL! Vous n'êtes pas le petit fils de quatre grands parents non vous êtes SOZIAL. Vous n'êtes pas un homme (palpez vous de grâce) ou une femme (idem) non vous êtes SOZIAL et vous choisissez votre sexe au gré de vos pérégrinations SOZIALES, vous ne devez pas être le père ou la mère vous êtes un géniteur SOZIAL!

ACHTUNG c'est le nouvel ORDRE SOZIAL !

C'est l'homme nouveau, SOZIAL EGALITAIRE GRIS ET ASEXUE GENETIQUEMENT. L'altérité sexuelle est niée au besoin par la force les différences d'ethnie, de capacités physiques ou intellectuelles sont des constructions bourgeoises à détruire. Sauf pour le foot où les meilleurs sont mieux payés qu'un patron de PME mais c'est "normal".
"Où y a t-il de meilleurs hommes que ceux que l'on peut voir ici ? C'est vraiment la renaissance d'une nation obtenue par l'élevage délibéré d'un homme nouveau"
Adolf T et François H.

vendredi 19 avril 2013

Boston's marathon attacks: end of the story? Not for victims

What drove him and his brother, Dzhokhar A. Tsarnaev, 19, who lived with him in Cambridge, Mass., to perpetrate the deadly attack — which killed three people and injured 176 others — is not clear. They are believed to be Muslim and to have had military training overseas. But the older brother, who was 26, also worked out in a gym and dreamed of making the U.S. Olympic boxing team, according to an online photojournalism slideshow that chronicled his training

Read more:

"Law enforcement officials said that within hours of the pictures’ release, the two shot and killed a campus police officer at the Massachusetts Institute of Technology, carjacked a sport utility vehicle, and led police on a chase, tossing several pipe bombs from their vehicle."
Those guys are not amateurs!

About the mother of the two bombers:
"During this facial session she started quoting a conspiracy theory, telling me that she thought 9-11 was purposefully created by the American government to make America hate Muslims. “It’s real,” she said, “My son knows all about it. You can read on the internet.” 

Read more:

Did they catch the young brother with this IR pict? Yes.

The theory of solitary wolves another time discredited: they planned to bomb Time Square!

Le PCF contre la mutuelle obligatoire, un paradoxe?

jeudi 18 avril 2013

The lethal gap for french public finances

The lie of Mr Cahuzac will not impact public finances. On the other hand iterative erroneous previsions of Mr Moscovici the finances minister will have a huge impact on the french government credibility.
Here are the records.

Recession in France

The two clear explanations of this plunge of french bond rates are:
Recession in Europe and especially in France AND flooding of paper money all over the world, US, Japan, UK... 
How long the flooding will hide the recession and its major effects?
I don't know.

La dette publique française ne dépend nullement de la couleur politique du pouvoir

Mais quand va-t-on enfin juger les politiques sur les résultats et non sur leur programme?

Par ailleurs que l'on ne me dise pas qu'il s'agit là d'une politique keynésienne. JMK recommenda de rembourser la dette pendant les phases de croissance... Hum ils ont tous fait le contraire. Alors venir nous expliquer comme l'OFCE que ce n'est pas le moment de réduire la dette et qu'il faut attendre la croissance c'est mentir une deuxième fois.
Enfin soutenir que l'endettement ne nuit pas à la croissance est contr-intuitif. Et de surcroît c'est loin d'être prouvé car il faut personnaliser... La dette aux USA avec un tissu économique dense des charges sociales faibles n'a pas le même impact qu'en France pour un même niveau en % du PIB! A 57 % de dépense publique la dette est un suicide!

mercredi 17 avril 2013

Les honoraires chirurgicaux suivent la courbe offre/demande

Nous avons là la démonstration que ces honoraires qui ne coutent pas un centime à la sécu et rappportent le coin marginal d'imposition à l'état sont très bien régulés par le marché...
L'imposture des "mesures" du gouvernement n'en apparait que plus inefficace puisque toute entrave à ce contrat d'honoraires consenti par les deux parties sera un manque à gagner pour les finances publiques.

lundi 15 avril 2013

Queer theory is a kind of creationism

Brain differences between homosexual and heterosexual women.

Economics: Nobel laureates

YearNameBirth DateNationality
2012Alvin Roth1951-American
Lloyd S. Shapley1923-American
2011Thomas J. Sargent1943-American
Christopher A. Sims1942-American
2010Peter Diamond1940-American
Dale Mortensen1939-American
Christopher Pissarides1948-Cypriot
2009Elinor Ostrom 1933- American
Oliver Williamson 1932- American
2008Paul R. Krugman 1953- American
2007Leonid Hurwicz 1917-2008 Russian
Eric S. Maskin 1950- American
  Roger B. Myerson 1951- American
2006Edmund Phelps 1933- American
2005Thomas Schelling 1921- American
Robert J. Aumann 1930- Israeli and American
2004Edward C. Prescott 1940- American
Finn E. Kydland 1943- Norwegian
2003Clive W.J. Granger 1934-2009 British
Robert F. Engle 1942- American
2002Vernon L. Smith 1927- American
Daniel Kahneman 1934- Israeli
2001George A. Akerlof 1940- American
A. Michael Spence 1943- American
Joseph E. Stiglitz 1943- American
2000James J. Heckman 1944- American
Daniel L. McFadden 1937- American
1999Robert A. Mundell 1932- Canadian
1998Amartya Sen 1933- Indian
1997Robert C. Merton 1944- American
Myron S. Scholes 1941- American
1996James A. Mirrlees 1936- British
William S. Vickrey 1914-1996 American
1995Robert E. Lucas, Jr. 1937- American
1994John C. Harsanyi 1920-2000 American (born Hungary)
John F. Nash 1928- American
Reinhard Selten 1930- German
1993Robert W. Fogel 1926- American
Douglass C. North 1920- American
1992Gary S. Becker 1930- American
1991Ronald H. Coase 1910- American (British-born)
1990Harry M. Markowitz 1927- American
Merton H. Miller 1923-2000 American
William F. Sharpe 1938- American
1989Trygve Haavelmo 1911-1999 Norwegian
1988Maurice Allais 1911- French
1987Robert M. Solow 1924- American
1986James M. Buchanan, Jr. 1919- American
1985Franco Modigliani 1918-2003 American (born Italy)
1984Sir Richard Stone 1913-1991 British
1983Gerard Debreu 1921-2004 American (born France)
1982George J. Stigler 1911-1991 American
1981James Tobin 1918-2002 American
1980Lawrence R. Klein 1920- American
1979Theodore W. Schultz 1902-1998 American
Sir Arthur Lewis 1915-1991 West Indian
1978Herbert A. Simon 1916-2001 American
1977James E. Meade 1907-1995 British
Bertil Ohlin 1899-1979 Swedish
1976Milton Friedman 1912-2006 American
1975Leonid V. Kantorovich 1912-1986 Russian
Tjalling C. Koopmans 1910-1985 American (born Netherlands)
1974Gunnar Myrdal 1898-1987 Swedish
Friedrich A. von Hayek 1899-1992 British (born Austria)
1973Wassily Leontief 1906-1999 American (Russian-born)
1972Kenneth J. Arrow 1921- American
John R. Hicks 1904-1989 British
1971Simon Kuznets 1901-1985 American (Russian-born)
1970Paul A. Samuelson 1915- American
1969Ragnar Frisch 1895-1973 Norwegian
Jan Tinbergen 1903-1994 Dutch

Yes you cannot miss it! At least if you live in east coast...