Category Archives: Neurosciences, cognitives sciences, neurology and psychiatry

Les conséquences neurologiques du virus Zika enfin dévoilées

(Français) L’infection virale Zika est toujours un problème de santé publique mondial. Son agent pathogène est le virus Zika transmis par les moustiques du genre Aedes. Depuis 2007, de nombreuses épidémies ont été recensées en Asie et en Afrique, et plus récemment en Amérique centrale et en Amérique du Sud. Si le virus est bien connu par les chercheurs et médecins, la fréquence d’apparition des complications neurologiques, leurs tableaux cliniques et leurs pronostics restent encore très énigmatiques. Dans une étude publiée dans Neurology, des équipes de chercheurs français*ont réussi à lever le voile sur les effets à long terme de ce virus. 

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(Français) 2 minutes : c’est le temps nécessaire au cœur pour réagir à un changement de lumière

(Français) Moins de 5 min, c’est effectivement le temps que mettent nos différents organes vitaux (cœur et cerveau notamment) pour détecter puis adapter leur fonctionnement à un changement de lumière dans l’environnement. Tels sont les résultats d’une nouvelle étude publiée par Claude Gronfier neurobiologiste à l’Inserm et son équipe basée au Centre de recherche en neurosciences de Lyon. Ces travaux viennent d’être publiés dans la revue Frontiers in Neurosciences et dans le Journal of Pineal Research.

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What is the Origin of Human Social Intelligence?

In humans, “Theory of Mind” is the ability to understand others’ mental states: what they think, what they feel, what they desire, what they love, etc. It plays a major role in human social interactions.

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Is Our Stubbornness Caused by Confirmation Bias?

The way in which people make decisions can sometimes seem reckless or even totally irrational. One explanation for this behavior is that humans tend to prefer information that confirms their beliefs and overlook that which contradicts them. This is a phenomenon called confirmation bias.

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MS : using MRI to predict relapse

Multiple sclerosis (MS) is an autoimmune inflammatory disease of the central nervous system. It generally affects young people, in whom it is the leading cause of non-traumatic motor disability. This disability develops either progressively or in the form of relapses interspersed with periods of remission.

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Depression, cardiovascular risk… and the class struggle

Classes sociales

Depression is not just one of the world’s most incapacitating illnesses – it also comes with an increased risk of cardiovascular disease, particularly that of the coronary arteries (angina and heart attack).

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Measuring gray matter to predict recovery from coma

Predicting recovery from coma following cardiac arrest remains a question to which physicians do not have an exact response. When – and if – a critical care patient will recover consciousness is evaluated essentially by means of recurrent clinical examinations and the recording of brain activity. Researchers at Inserm (Inserm Unit 1214 Toulouse NeuroImaging Center) led by Stein Silva, have recently developed a method that uses magnetic resonance imaging (MRI) to predict such recovery. The results were published this month in Critical Care Medicine.

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Smell, those neurons with a nose

Thanks to the receptors in our nose, we can identify thousands of smells. But there are still many grey areas regarding the mechanisms at work in sending information to the brain.

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Seniors: a study to evaluate the effects of meditation on their well-being and mental health

Between now and 2050, the number of people aged over 60 years is set to double according to estimates by the World Health Organisation, thus going from 65 million to 2 billion. Seniors may then represent 22% of the world population in 2050.[1] In this context, prevention and encouraging people to “age well” constitutes a primary challenge for our societies.

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Schizophrenics: type of birth and particularities of the disease

(Français) Selon plusieurs études, les bébés nés par césariennes seraient plus susceptibles de développer certains troubles mentaux dont la schizophrénie, lorsque leur cerveau a souffert d’un manque d’oxygène. Les chercheurs de l’Inserm ont comparé deux populations de patients schizophrènes : nés par voie basse ou par césarienne, afin de déterminer les caractéristiques particulières liées au type d’accouchement.

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