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| ¿Que es la Red Neuronal? |
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La configuracion de la Red Neuronal del cerebro
humano es lo que nos permite o impide "ver",
entender y experimentar otras posibilidades de
elecciones y experiencias... La Red Neuronal
particular de cada persona, es como su cancha de
juegos; asi, si tu cancha es para el ping pong,
pues solamente puedes experimentar ese juego
particular. ¿Deseas experimentar otros juegos?,
¿tener otras experiencias? ... entonces debes
empezar a "transformar" tu Red Neuronal.
Te invito a conocer sobre el Experimento de masa
critica para el DESPERTAR de la CONSCIENCIA.
http://masacritica.wordpress.com/
Este video son cortes de la pelicula ¿What the
Bleep do we know?
Tags : cerebro neuronal pensamiento consciencia despertar universo |
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Affichage : 27641
Durée : 246 s |
| Neural Impulse 3D Animation |
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3D animation of a neuron and an action potential.
Ion channels in the soma open and allow an
increase in the intracellular voltage. Once the
voltage reaches a threshold, an action potential
is generated, which travels the length of the axon
and passes into the terminals. The voltage in the
terminals stimulate the release of
neurotransmitters which cross the synapse, opening
ion channels in dendrites of the post-synaptic
neuron and increasing the voltage of the second
neuron. By Stephen Hicks, 2006. www.metope.org
Tags : neuron 3D animationaction potential neural signalling synapse |
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Affichage : 95814
Durée : 23 s |
| Neuronal Precursors, chain migration of |
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Neuronal precursors born in the subventricular
zone (SVZ) of the neonatal and adult rodent brain
migrate 3--8 mm from the walls of the lateral
ventricle into the olfactory bulb. This
tangentially oriented migration occurs without the
guidance of radial glia or axonal processes. The
cells move closely associated, forming elongated
aggregates called chains, which are ensheathed by
astrocytes. We have developed a culture system in
which postnatal mouse SVZ neuronal precursors
assemble into chains with ultrastructural and
immunocytochemical characteristics equivalent to
those in vivo but without the astrocytic sheath.
Time-lapse videomicrography revealed that
individual cells migrate along the chains very
rapidly (~122 µm/hr) in both directions. Periods
of cell body translocation were interspersed with
stationary periods. This saltatory behavior was
similar to radial glia--guided migration but ~4
times faster. Neuronal precursors isolated from
embryonic cortical ventricular zone or cerebellar
external granule layer did not form chains under
these conditions, suggesting that chain migration
is characteristic of SVZ precursors. This study
directly demonstrates that SVZ neuronal precursors
migrate along each other without the assistance of
astrocytes or other cell types.
Tags : Neuronal Precursors subventricular zone lateral ventricle radial glia axonal processes |
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Affichage : 4069
Durée : 9 s |
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