J Bio Rhythms: new impact factor



We are writing to thank you for your contribution to the great results in the recently released 2013 Journal Citation Reports ®.

The journal below, with which you have been involved as a Reviewer, Editorial Board member or Author increased in Impact Factor (Source: 2013 Journal Citation Reports®, Thomson Reuters, 2014).

This increase is testament to the commitment and expertise of our Editorial Board and Reviewers and highlights the increasing quality of the articles the journal publishes.

Journal of Biological Rhythms Journal of Biological RhythmsImpact Factor: 3.316
Now ranked 16/83 in Biology; 21/81 in Physiology

The Power of Sleep | TIME


Is It Bad To Wear A Bra To Sleep?


Valérie Mongrain : de noctambule à chercheuse – Faculté de médecine

Valérie Mongrain : de noctambule à chercheuse – Faculté de médecine.


Valérie Mongrain au CÉAMS de l’Hôpital du Sacré-Cœur de Montréal

Valérie Mongrain, professeure sous octroi adjointe

Affiliation principale
Département de neurosciences

Lieu de travail

  • Laboratoire de physiologie moléculaire du sommeil
  • Centre de recherche de l’Hôpital du Sacré-Cœur de Montréal

Discipline de recherche

  • Neurosciences, sommeil et rythmes biologiques

D’aussi loin qu’elle se rappelle, Valérie Mongrain a toujours été un oiseau de nuit. « Lorsque j’étais adolescente, je travaillais de 16 h à minuit pour un kiosque de crème glacée, je sortais ensuite avec mes amis, je me couchais à 4 h du matin et je me levais à midi. Pour moi, c’était le rythme idéal, raconte la directrice du laboratoire de physiologie moléculaire du sommeil du Centre d’études avancées en médecine du sommeil (CÉAMS) à l’Hôpital du Sacré-Cœur de Montréal. Mais évidemment, tout cela a changé avec l’arrivée de mes deux fils. » C’est ce goût pour la vie nocturne qui a poussé la chercheuse à s’intéresser au sommeil. « Pendant mon baccalauréat en sciences biologiques à l’Université de Montréal, j’ai effectué un stage de recherche avec la Dre Marie Dumont au CÉAMS en chronobiologie, plus précisément sur le chronotype, soit la préférence pour l’horaire de sommeil, explique-t-elle. C’était un projet qui m’interpellait parce que j’étais curieuse de savoir d’où venait ma propre préférence. Et une fois que j’ai découvert qu’il y avait une foule de variations biologiques à l’origine de ce phénomène, j’ai vraiment eu la piqûre pour le domaine. »

suite : Valérie Mongrain : de noctambule à chercheuse – Faculté de médecine.



Some Things You Can Do In Your Sleep, Literally : Health News : NPR

Some Things You Can Do In Your Sleep, Literally: NPR


September 11, 2014 1:32 PM ET

For those who find themselves sleeping through work – you may one day find yourself working through sleep.

People who are fast asleep can correctly respond to simple verbal instructions, according to a study by researchers in France. They think this may help explain why you might wake if someone calls your name or why your alarm clock is more likely to rouse you than any other noise.

After people learned to sort words while awake, their brains were able to do the same task while asleep.

After people learned to sort words while awake, their brains were able to do the same task while asleep.

Courtesy of Current Biology, Kouider et al.

The connections between sleep, memory and learning aren’t new – but the research is notable for its examination of automatic tasks. The study, published Thursday inCurrent Biology, first recorded the brain waves of people while they were asked to identify spoken words as either animals or objects while they were awake. After each word, the participant pushed a button with either their right hand for animals or their left hand for objects.

The brain map produced by the EEG showed where activity was taking place in the brain and what parts of the brain were being prepped for response. This preparation might include hearing the word elephant and then processing that an elephant is an animal. The participants did this until the task became automatic.

The researchers then lulled the participants to sleep, putting them in a dark room in a reclining chair with closed eyes. Researchers watched them fall into the state between light sleep and the deeper sleep known as rapid eye movement (REM). They were then told a new list of words.

This time, their hands didn’t move, but their brains showed the same sorting activity as before. “In a way what’s going on is that the rule they learn and practice, still is getting applied,” Tristan Bekinschtein, one of the authors of the study, told Shots. The human brain continued, when triggered, to respond even through sleep.

continued on site: Some Things You Can Do In Your Sleep, Literally: NPR

The Link Between Sunny Days and Suicide | TIME


The eye of a small frog having a nap

Tore via iPhone