Neurogenesis
Neurogenesis (birth of neurons) is the process by which neurons are generated from neural stem cells and progenitor cells. Most active during pre-natal development, neurogenesis is responsible for populating the growing brain with neurons. Recently neurogenesis was shown to continue in several small parts of the brain of mammals: the hippocampus and the subventricular zone. Occurrence in adults[edit] New neurons are continually born throughout adulthood in predominantly two regions of the brain: Many of the newborn cells die shortly after they are born, but a number of them become functionally integrated into the surrounding brain tissue. Role in learning[edit] Effects of stress[edit] Some studies have hypothesized that learning and memory are linked to depression, and that neurogenesis may promote neuroplasticity. Effects of sleep reduction[edit] One study has linked lack of sleep to a reduction in rodent hippocampal neurogenesis. Possible use in treating Parkinson's disease[edit]
.htaccess - Quelques astuces bien pratiques à connaître
Les fichiers .htaccess sont des fichiers de configuration d'apache pouvant être placés dans n'importe quel répertoire de votre site web. Voici quelques astuces à connaître pour vos sites web. Voici une liste de bouts de code un peu plus atypiques pour vos htaccess qu'une simple personnalisation d'erreur 404... Traduisez directement vos pages web avec Google Translate Si vous souhaitez traduire à la volée vos pages pour vos visiteurs étrangers. 1.Options +FollowSymlinks 2.RewriteEngine on Vous n'aurez juste à appeler votre page: pour qu'il soit traduit en anglais via Google. Se passer de la dialogue demandant d'ouvrir ou enregistrer le contenu téléchargeable de son site Quand vous téléchargez un fichier PDF ou AVI ... dans la majorité des cas, il vous est demandé si vous souhaitez ouvrir ou télécharger le fichier. 1.AddType application/octet-stream .pdf 2.AddType application/octet-stream .zip 3.AddType application/octet-stream .mov ou en utilisant GZIP: 01. 10. 1. 3.
The Brain Story | Documentary Heaven | Watch Free Documentaries Online
Why do we think and feel as we do? For years man has sought to understand the workings of the mind. Now, with advances in modern-day technology and developments in neuroscience, a whole new world of brain research is opening up. Understanding our minds is becoming a reality. All in the Mind. In the Heat of the Moment. The Mind’s Eye. First Among Equals. Growing the Mind. The Final Mystery.
Brain Fitness and Cognitive Health Authority: Market Research and Advisory Services
The Human Connectome Project
The Human Connectome Project Human Connectome The NIH Human Connectome Project is an ambitious effort to map the neural pathways that underlie human brain function. Altogether, the Human Connectome Project will lead to major advances in our understanding of what makes us uniquely human and will set the stage for future studies of abnormal brain circuits in many neurological and psychiatric disorders. Consortia The Blueprint has funded two major cooperative agreements that will take complementary approaches to deciphering the brain's complex wiring diagram. Use the box at the right to search the consortium sites or browse the sites directly using the links below. Latest Updates The Massachusetts General Hospital and the University of California at Los Angeles consortium has built a next-generation 3T magnetic resonance imaging (MRI) scanner that improves the quality and spatial resolution with which brain connectivity data can be acquired. Washington University in St.
Google exploite Twitter et Facebook pour le référencement naturel
Par Olivier Duffez, Mercredi 22 décembre 2010 Avec l'influence croissante des réseaux sociaux sur le web, les moteurs de recherche doivent adapter leur algorithme pour tenir compte de cette évolution. Nous avons aujourd'hui la confirmation que parmi les fameux critères pris en compte figurent désormais des éléments issus de Twitter et Facebook. Comment votre compte Twitter, votre page Facebook et le reste de votre activité sociale sur le web peuvent vous aider au référencement naturel Google ou Bing ? Voici des éléments de réponse... Introduction Parmi les critères traditionnels pris en compte par les moteurs figurent la popularité des pages, mesurée essentiellement par le nombre et la qualité des liens pointant vers elles. Pourtant, si quelqu'un ou un site a du succès sur Internet, on parlera sans doute beaucoup de lui sur Twitter et Facebook. Mettez en place votre stratégie réseaux sociaux avant qu'il ne soit trop tard ! Impact des réseaux sociaux sur le référencement naturel
The Extended Mind
Andy Clark & David J. Chalmers [*] Department of Philosophy Washington University St. Louis, MO 63130 Department of Philosophy University of Arizona Tucson, AZ 85721 andy@twinearth.wustl.educhalmers@arizona.edu *[[Authors are listed in order of degree of belief in the central thesis.]] [[Published in Analysis 58:10-23, 1998. 1 Introduction Where does the mind stop and the rest of the world begin? 2 Extended Cognition Consider three cases of human problem-solving: (1) A person sits in front of a computer screen which displays images of various two-dimensional geometric shapes and is asked to answer questions concerning the potential fit of such shapes into depicted "sockets". (2) A person sits in front of a similar computer screen, but this time can choose either to physically rotate the image on the screen, by pressing a rotate button, or to mentally rotate the image as before. (3) Sometime in the cyberpunk future, a person sits in front of a similar computer screen. 3 Active Externalism
Human Connectome Project
The Human Connectome Project (HCP) is a five-year project sponsored by sixteen components of the National Institutes of Health, split between two consortia of research institutions. The project was launched in July 2009[1] as the first of three Grand Challenges of the NIH's Blueprint for Neuroscience Research.[2] On September 15, 2010, the NIH announced that it would award two grants: $30 million over five years to a consortium led by Washington University in Saint Louis and the University of Minnesota, and $8.5 million over three years to a consortium led by Harvard University, Massachusetts General Hospital and the University of California Los Angeles.[3] The goal of the Human Connectome Project is to build a "network map" that will shed light on the anatomical and functional connectivity within the healthy human brain, as well as to produce a body of data that will facilitate research into brain disorders such as dyslexia, autism, Alzheimer's disease, and schizophrenia.[4]
