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Paris - Le Bourget (LBG) 20-Jun-2009
The Dassault nEUROn is an experimental Unmanned Combat Air Vehicle being developed with international cooperation, led by the French company Dassault Aviation.
schematic diagram of the apparatus used by Erich Sutter to measure....the full spatio-temporal receptive field of simple cells in cat area 17
Excitatory pyramidal neuron of cortex (blue) and glia cell (yellow).
Render by Amy Sterling from reconstructions by Seung Lab, Princeton Neuroscience Institute using images acquired by The Allen Institute. Funded by IARPA MICrONS. Rendered in Cinema 4D using Otoy Octane GPU renderer.
Eyes are organs that detect light, and convert it to electro-chemical impulses in neurons. The simplest photoreceptors in conscious vision connect light to movement.[1][broken citation] In higher organisms the eye is a complex optical system which collects light from the surrounding environment; regulates its intensity through a diaphragm; focuses it through an adjustable assembly of lenses to form an image; converts this image into a set of electrical signals; and transmits these signals to the brain, through complex neural pathways that connect the eye, via the optic nerve, to the visual cortex and other areas of the brain. Systems with resolving power have come in ten fundamentally different forms, and 96% of animal species possess a complex optical system.[2] Image-resolving eyes are present in molluscs, chordates and arthropods.[3]
El MUNCYT acoge Big Neurona, un museo móvil interactivo con forma de neurona gigante. Esta instalación ha sido inaugurada por el alcalde de A Coruña, Don Xulio Ferreiro. Big Neurona es un laberinto de espejos en el que se muestran las diferentes partes que componen las neuronas y se realizan juegos y otras actividades. Estará abierta al público desde el 22 de enero al 26 de junio
This in vivo 2-photon image was created using viral vectors from the viral gene transfer core, a facility established in 2008 by the Picower Institute and the McGovern Institute to make viral vectors accessible to the MIT neuroscience community.
Image courtesy of Sam Clark, McGovern Institute for Brain Research at MIT
Inside every adolescent brain, 86 billion neurons connect and collide to produce the most frustrating, chaotic and exhilarating changes that will ever happen to us.
#LYTMindYourHead
Lyceum Youth Theatre and Traverse Young Writers present Mind Your Head, a double bill of performances which examines the hot topic of mental wellbeing for young people today.
Each evening show will feature Brainstorm, exploring the complexities of the adolescent brain in a unique performance conceived by a playwright, a neuroscientist and partially devised by the LYT cast themselves.
Brainstorm will be paired with a selection of short scenes by the Traverse Young Writers who have responded to themes of the science and biology behind emotions, and nature verses nurture
What does happiness mean? Is it material or emotional? Controlled by circumstances or temperament?
Find out more at: lyceum.org.uk/whats-on/production/1061
Photography by Ryan Buchanan
CREDITS: Migliorini Elisa, Grenci Gianluca, Marco Lazzarino/IOM-CNR Laboratorio TASC e Centro di Biomedicina Molecolare (CBM) Area Science Park, Basovizza, Trieste.
Neurona AP de sanguijuela (Hirudo medicinalis) regenerando en medio de cultivo con Concanavalina A... Ok después del choro técnico, esto era lo que hacia en el Instituto de FisiologÃa Celular, antes de cambiar los microscópios por los binoculares, o sea, antes de ser biólogo de campo era una rata de laboratorio que es lo mismo que un Biólogo molecular o BiofÃsico =) ja ja.. Sin ofender, que tengo muchos amigos biólogos moleculares
Neurons transmit electrical signals to muscles through a thin connection called an axon. The axon is covered by a sort of insulation called the myelin sheath, which is like the plastic coating on your charger cord. In ALS, this coating is eaten away, and the signal is lost before it reaches the muscle. When the muscle stops recieving signals, it begins wasting away. Using a copper-rich compound, OSU professor Joe Beckman and his team were able to restore the myelin sheath in mice damaged by ALS. The compound is in clinical trials to evaluate its safety, and patients and their families are cautiously optimistic that this might help extend the lives of people with Lou Gehrig’s disease. #OSU150
Neurone du cervelet (structure triangulaire en rouge au centre ; son noyau, circulaire apparaît en violet) projetant ses prolongements vers le site de genèse des mouvements involontaires dans la maladie de Parkinson. La stimulation intermittente des terminaisons nerveuses (en vert) dans un modèle de Parkinson chez la souris permet de prévenir l’apparition de ces mouvements involontaires.
©Daniela Popa/Inserm.licence CC-BY-NC 4.0 international
En savoir plus : Dans une étude parue en juin 2022, des chercheurs et chercheuses sous la supervision de Clément Léna et Daniela Popa, directeur et directrice de recherche Inserm, montrent que des stimulations depuis la surface du cerveau, au niveau du cervelet, suffisent à supprimer les mouvements involontaires (ou dyskinésies) liés à la maladie de Parkinson.
Ils ont entrepris de tester une voie thérapeutique alternative pour traiter ces mouvements anormaux dans un modèle animal de la maladie de Parkinson. Ils ont administré des stimulations spécifiques des cellules de Purkinje du cervelet depuis la surface du cerveau, quelques dizaines de secondes par jour.
Celles-ci se sont révélées capables de supprimer les mouvements anormaux. Mieux encore, ce traitement a normalisé l’activité des circuits moteurs, y compris au niveau du site de genèse présumée de ces dyskinésies, au sein des ganglions de la base.
Les résultats ont montré que ce traitement met en jeu des mécanismes de plasticité, qui perdurent pendant plusieurs jours voire semaines. Ces stimulations de la surface du cervelet, administrables de façon non invasive, fournissent une voie d’accès nouvelle pour le traitement d’affections profondes dans le cerveau. Les mécanismes cellulaires des plasticités restent à être identifiés.
L’équipe cherche maintenant à mieux comprendre et à optimiser ces pratiques pour reproduire leurs effets bénéfiques chez les patients
Source : Cerebellar stimulation prevents Levodopa-induced dyskinesia in mice and normalizes activity in a motor network, 09/06/2022, Nature Communications
Synapses arriving at an excitatory neuron (blue) of mouse visual cortex.
Render by Amy Sterling from
reconstructions by Seung Lab, Princeton Neuroscience Institute using images acquired by The Allen Institute. Funded by IARPA MICrONS. Rendered in Cinema 4D using Otoy Octane GPU renderer.
Inverted image of GFP expressing neurons in the larval ventral cord of a th-Gal4, UAS-GFP strain. For more info go here:
genetics.biozentrum.uni-wuerzburg.de/home/hiromut/paper/T...
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