View allAll Photos Tagged neuron
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Animated Neuronal transmission : It is one of the most important function of the body. What we call our senses are impulses travelling from various parts of the body to brain. Unknow to us however there are billions of connections made to transfer info from internal organs to the brain. It is the intricate neuron cellular network that keeps our body alive. This neuronal transmission animation gives in-depth information about how our nervous system functions.
What is brain made up of?
What is the structure of neuron?
Axon and their function
How information transfers through neuron?
How do neurons, a biological entity, create an electric signal?
What is action potential?
Complete mechanism of action potential generation and transfer including Na - K interaction
How electric signal pass through one neuron to another neuron, as there is tiny gap between two neurons?
Complete mechanism of presynaptic terminal to postsynaptic membrane signal transfer
What are neurotransmitters?
Infection of neurons (red) by the PRV α-herpesvirus (green) induces axonal swellings (arrows) that serve as exit sites for the virus to infect neighboring cells. (JCB 174(2) TOC2)
This image is available to the public to copy, distribute, or display under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported license.
Reference: De Regge et al. (2006) J. Cell Biol. 174:267-275.
Published on: July 10, 2006.
Doi: 10.1083/jcb.200510156.
Read the full article at:
(1)
Connectome
In their words:
"A connectome is a synapse-resolution mapping of connections between
all neurons in a model organism's brain. In other words, a
synapse-resolution circuit diagram of the brain. Current approaches to
mapping the connectomes of model organisms employ serial block face
scanning electron microscopy (SBF-SEM) and transmission electron
microscopy (TEM). The only connectome that has been mapped out to date
has been from the flatworm, C. elegans, which has only around 300
neurons."
(2)
ConnectomeViewer
In their words:
"The field of Connectomics research benefits from recent advances in
structural neuroimaging technologies on all spatial scales. The need
for software tools to visualize and analyse the emerging data is
urgent. ... The Connectome Viewer application was developed to meet
the needs of basic and clinical neuroscientists, as well as complex
network scientists, providing an integrative, extensible platform to
visualize and analyze Connectomics data.With the Connectome File
Format, interlinking different datatypes such as networks, surface
data, and volumetric data is easy and might provide new ways of
analyzing and interacting with data."
In addition to the viewer, this site also provides quite a variety of
that can be used to test different features and functions.
(3)
Human Connectome Project
In their words:
"The HCP will map the human connectome as accurately as possible in a
large number of normal adults and will make this data freely available
to the scientific community using a powerful, user-friendly
informatics platform."
"Successful charting of the human connectome in normal adults will be
enormously informative. Even more importantly, it will pave the way
for studies that reveal how brain circuitry changes during development
and aging and how it differs in numerous neurological and psychiatric
disorders. In short, it will transform our understanding of the human
brain in health and disease."
(4)
BrainMaps
In their words:
"Brain atlases have traditionally been one resolution and
non-interactive. The next-generation brain atlas is multiresolution,
highly interactive, and fully integrated with the latest research
literature. This is BrainMaps.org, a complete online brain atlas
founded on the principle that a brain atlas is a dynamic, interactive,
multiresolution research and didactic tool that facilitates brain
exploration and knowledge discovery."
As if that isn't enough, BrainMaps also has an API for
developers and and open source /
OpenGL-based 3D
viewer!
(5)
BrainMeta
In their words:
"BrainMeta was established for the purpose of accelerating the
development of neuroscience through web-based initiatives, which
include the development, implementation and support of a wide range of
neuroinformatics tools, services, and databases."
(6)
Allen Institute for Brain Science: Brain Atlas
In their words:
"A growing collection of online public resources integrating extensive
gene expression and neuroanatomical data, complete with a novel suite
of search and viewing tools."
(7)
Brain Museum: Comparative Mammalian Brain Collections
www.brainmuseum.org/index.html
In their words:
"This web site provides browsers with images and information from one
of the world's largest collection of well-preserved, sectioned and
stained brains of mammals. Viewers can see and download photographs of
brains of over 100 different species of mammals (including humans)
representing over 20 Mammalian Orders."
(8)
MSU: Brain Biodiversity Bank
www.msu.edu/~brains/index.html
In their words:
"The Brain Biodiversity Bank refers to the repository of images of and
information about brain specimens contained in the collections
associated with the National Museum of Health and Medicine at the
Armed Forces Institute of Pathology in Washington, DC. These
collections include, besides the Michigan State University Collection,
the Welker Collection from the University of Wisconsin, the
Yakovlev-Haleem Collection from Harvard University, the Meyer
Collection from the Johns Hopkins University, and the Huber-Crosby and
Crosby-Lauer Collections from the University of Michigan.
Our purpose here is to provide some examples of ways in which images
and information from the Collections, in digital format, can be used
in educational, research and commercial enterprises. Millions of
beautifully stained sections from hundreds of different brains,
assembled in many locations over the past century can be made
available for a broad variety of purposes."
Want more pics?
Wikipedia: List of neuroscience databases
en.wikipedia.org/wiki/List_of_neuroscience_databases
Want more neuro imaging software?
UCLA: Laboratory of Neuro-Imaging
A motor neuron can die when nitrated HSP90 binds to P2x7. (Graphic courtesy of Oregon State University)
Maturation of presynaptic transmitter secretion machinery is a critical step in synaptogenesis. Here we report that a brief train of presynaptic action potentials rapidly converts early nonfunctional contacts between cultured hippocampal neurons into functional synapses by enhancing presynaptic glutamate release. The enhanced release was confirmed by a marked increase in the number of depolarization-induced FM4-64 puncta in the presynaptic axon. This rapid presynaptic maturation can be abolished by treatments that interfered with presynaptic BDNF and Cdc42 signaling or actin polymerization. Activation of Cdc42 by applying BDNF or bradykinin mimicked the effect of electrical activity in promoting synaptic maturation. Furthermore, activity-induced increase in presynaptic actin polymerization, as revealed by increased concentration of actin-YFP at axon boutons, was abolished by inhibiting BDNF and Cdc42 signaling. Thus, rapid presynaptic maturation induced by neuronal activity is mediated by presynaptic activation of the Cdc42 signaling pathway.
Neural stem cells must balance self renewal with differentiation into either neurons (red) or glial cells (blue and green). Nagao et al. show that this is coordinated by the protooncoprotein Myc and the tumor suppressor p19(ARF). (JCB 183(7) TOC2)
This image is available to the public to copy, distribute, or display under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported license.
Reference: Nagao et al. (2008) J. Cell Biol. 183:1243-1257.
Published on: December 29, 2008.
Doi: 10.1083/jcb.200807130.
Read the full article at:
Excitatory pyramidal neuron of cortex highlighting structure of soma and apical dendrite, the leading branch that reaches from cell body to higher layers of 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.
Diagram shows how a real nerve cell could communicate with an artificial one.
The biological neuron releases dopamine (red balls) at its junction with the artificial neuron. A solution in the gap gives the dopamine a positive charge (gold balls), which allows it to flow across the device. Electrical resistance depends on how fast the dopamine is released and how much has accumulated on the artificial neuron.
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Read more in Knowable Magazine
Making computer chips act more like brain cells
Flexible organic circuits that mimic biological neurons could increase processing speed and might someday hook right into your head
knowablemagazine.org/article/technology/2022/making-compu...
Lea en español
Cómo hacer que los chips de las computadoras actúen más como neuronas
Los circuitos orgánicos flexibles que imitan a las células cerebrales biológicas podrían aumentar la velocidad de procesamiento y, algún día, quizás engancharse directamente a su cabeza.
es.knowablemagazine.org/article/technology/2022/hacer-que...
Read more from Annual Reviews
Materials Strategies for Organic Neuromorphic Devices, Annual Review of Materials Research
Neuromorphic computing will use brainlike architectures and synaptic memories to create more efficient computers. This review lays out requirements for materials that would have the computing power and biocompatibility to allow integration with the body.
===
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The Knowable Magazine Science Graphics Library is an initiative to create freely available, accurate and engaging graphics for teachers and students. All graphics are curated from Knowable Magazine articles and are free for classroom use.
Knowable Magazine is an editorially independent initiative produced by Annual Reviews, a nonprofit publisher dedicated to synthesizing and integrating knowledge for the progress of science and the benefit of society.
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EXPLORE, EXPERIENCE AND WONDER
Activities to stimulate, inspire and amuse your little grey cells....
Art and Science on the Brain
Wonder Street Fair 7-9 April 2013
Barbican Centre, London
Festival of Neuroscience - BNA 2013
A unique experience with outstanding speakers presenting the latest developments in research into the brain and CNS organised by British Neuroscience Association and supported by Wellcome Trust
Faculty and students from Fresno State and the Universidad Panamericana (Aguascalientes) make cheese in the Fresno State creamery as part of the Cows to Neuron dual study abroad program, photo by Geoff Thurner, June 17, 2022, Copyright 2022.
Testing Ankyrin-G (which goes to axon initial segment, pseudocolored to blue) with one of my GFP constructs (the green is transfection here) and Hoechst (pseudocolored to red, highlighting cell nuclei)
Leica DMRE 40x
Presynaptic microtubules (green) and postsynaptic actins (red) at neuromuscular junction 4. The neuron surface is shown in blue. Credit: Q. Wang and M. Serpe, NICHD
(1)
Connectome
In their words:
"A connectome is a synapse-resolution mapping of connections between
all neurons in a model organism's brain. In other words, a
synapse-resolution circuit diagram of the brain. Current approaches to
mapping the connectomes of model organisms employ serial block face
scanning electron microscopy (SBF-SEM) and transmission electron
microscopy (TEM). The only connectome that has been mapped out to date
has been from the flatworm, C. elegans, which has only around 300
neurons."
(2)
ConnectomeViewer
In their words:
"The field of Connectomics research benefits from recent advances in
structural neuroimaging technologies on all spatial scales. The need
for software tools to visualize and analyse the emerging data is
urgent. ... The Connectome Viewer application was developed to meet
the needs of basic and clinical neuroscientists, as well as complex
network scientists, providing an integrative, extensible platform to
visualize and analyze Connectomics data.With the Connectome File
Format, interlinking different datatypes such as networks, surface
data, and volumetric data is easy and might provide new ways of
analyzing and interacting with data."
In addition to the viewer, this site also provides quite a variety of
that can be used to test different features and functions.
(3)
Human Connectome Project
In their words:
"The HCP will map the human connectome as accurately as possible in a
large number of normal adults and will make this data freely available
to the scientific community using a powerful, user-friendly
informatics platform."
"Successful charting of the human connectome in normal adults will be
enormously informative. Even more importantly, it will pave the way
for studies that reveal how brain circuitry changes during development
and aging and how it differs in numerous neurological and psychiatric
disorders. In short, it will transform our understanding of the human
brain in health and disease."
(4)
BrainMaps
In their words:
"Brain atlases have traditionally been one resolution and
non-interactive. The next-generation brain atlas is multiresolution,
highly interactive, and fully integrated with the latest research
literature. This is BrainMaps.org, a complete online brain atlas
founded on the principle that a brain atlas is a dynamic, interactive,
multiresolution research and didactic tool that facilitates brain
exploration and knowledge discovery."
As if that isn't enough, BrainMaps also has an API for
developers and and open source /
OpenGL-based 3D
viewer!
(5)
BrainMeta
In their words:
"BrainMeta was established for the purpose of accelerating the
development of neuroscience through web-based initiatives, which
include the development, implementation and support of a wide range of
neuroinformatics tools, services, and databases."
(6)
Allen Institute for Brain Science: Brain Atlas
In their words:
"A growing collection of online public resources integrating extensive
gene expression and neuroanatomical data, complete with a novel suite
of search and viewing tools."
(7)
Brain Museum: Comparative Mammalian Brain Collections
www.brainmuseum.org/index.html
In their words:
"This web site provides browsers with images and information from one
of the world's largest collection of well-preserved, sectioned and
stained brains of mammals. Viewers can see and download photographs of
brains of over 100 different species of mammals (including humans)
representing over 20 Mammalian Orders."
(8)
MSU: Brain Biodiversity Bank
www.msu.edu/~brains/index.html
In their words:
"The Brain Biodiversity Bank refers to the repository of images of and
information about brain specimens contained in the collections
associated with the National Museum of Health and Medicine at the
Armed Forces Institute of Pathology in Washington, DC. These
collections include, besides the Michigan State University Collection,
the Welker Collection from the University of Wisconsin, the
Yakovlev-Haleem Collection from Harvard University, the Meyer
Collection from the Johns Hopkins University, and the Huber-Crosby and
Crosby-Lauer Collections from the University of Michigan.
Our purpose here is to provide some examples of ways in which images
and information from the Collections, in digital format, can be used
in educational, research and commercial enterprises. Millions of
beautifully stained sections from hundreds of different brains,
assembled in many locations over the past century can be made
available for a broad variety of purposes."
Want more pics?
Wikipedia: List of neuroscience databases
en.wikipedia.org/wiki/List_of_neuroscience_databases
Want more neuro imaging software?
UCLA: Laboratory of Neuro-Imaging
Stavvi Miciòs orribilmente, e ringhia:
essamina i neuroni ne l'intrata;
giudica e manda secondo ch'avvinghia...
e in che cerchio lo manderà?
naturalmente dedicata a Granmadue
Neurons and astrocytes isolated from rat hippocampus stained for DNA (blue), neuronal-specific βIII-tubulin (green) and astrocyte-specific GFAP (red).
Neurobiology
DISTINCTION FOR CATEGORY 4
Copyright: CC-BY-NC-ND: Rajib Schubert
Description of the author:
Here we are looking into a live awake mouse's brain while it is listening to music. As the music plays, the neurons labelled in green and red with a genetically encoded calcium sensor get activated which allows us to visualise the dance they do as they process the audio input via flashes of electrical activity. This ballad is not only aesthetically pleasing but also very informative as we see how neural processing occurs in real time with a tangible stimulus which we can relate to deep inside.
Comment of the Jury:
A distinction goes to the video “Ballade of the neurons”. The video enables an amazing glimpse into the brain of a mouse as it hears music. Neural processes are shown in real time. “You see the message being transmitted, and you want to know what the message is”, wrote the Jury.
Kommentar der Jury:
Eine Auszeichnung erhält das Video «Neuronenballade». Das Video ermöglicht einen überraschenden Blick in das Gehirn einer Maus, während sie Musik hört. Es zeigt die neuronalen Prozesse in Echtzeit. «Man sieht die Botschaft, die übertragen wird und möchte wissen, was die Botschaft ist», schreibt dazu die Jury.
Commentaire du jury:
La vidéo « Balade neuronale » a reçu une mention. Ce film offre un aperçu étonnant de ce qui se passe dans le cerveau d’une souris qui écoute de la musique. Il montre les processus neuronaux en temps réel. « On voit le message transmis et on voudrait connaître son contenu », commente le jury.