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Latest Pyramidal cell Stories

Neuron Transformation In The Brain Opens A New Avenue In Neurobiology
2013-01-21 04:44:13

redOrbit Staff & Wire Reports - Your Universe Online A pair of Harvard University stem cell biologists have reportedly demonstrated a technique with which they can transform one type of already differentiated neuron into another. The discovery, reported by the Cambridge, Massachusetts-based Ivy League school in a statement released Sunday, demonstrates it is possible that the human brain “is not as immutable as we always thought, because at least during an early window of time...

2012-11-23 10:56:34

They show how embryonic origin and timing influence cell specification and network integration The cerebral cortex of the human brain has been called "the crowning achievement of evolution." Ironically, it is so complex that even our greatest minds and most sophisticated science are only now beginning to understand how it organizes itself in early development, and how its many cell types function together as circuits. A major step toward this great goal in neuroscience has been taken by...

2012-10-17 22:53:58

New way to image brain-cell activity could shed light on autism and other psychiatric disorders A team led by MIT neuroscientists has developed a way to monitor how brain cells coordinate with each other to control specific behaviors, such as initiating movement or detecting an odor. The researchers' new imaging technique, based on the detection of calcium ions in neurons, could help them map the brain circuits that perform such functions. It could also provide new insights into the...

2012-05-10 22:27:49

Max Planck researchers found over 2500 mRNA along dendrites and axons How do we build a memory in the brain? It is well known that for animals (and humans) new proteins are needed to establish long-term memories. During learning information is stored at the synapses, the junctions connecting nerve cells. Synapses also require new proteins in order to show changes in their strength (synaptic plasticity). Historically, scientists have focused on the cell body as the place where the required...

2011-12-08 22:44:04

A team of physicians and scientists at Barrow Neurological Institute, in collaboration with colleagues in the Ukraine, have written a first-of-its-kind biography of Ukranian anatomist and histologist Vladimir Betz. The article, "The Discovery of the Pyramidal Neurons: Vladimir Betz and a New Era of Neuroscience," appears in the November 2011 issue of the medical journal, Brain. Among other contributions, Vladimir Alekseyevich Betz (1834-1894) is best known for his discovery of Betz cells,...

2011-09-13 12:13:23

The mechanism which adjusts how to receive a signal in coordination with dendritic morphology has been revealed Neurons in the brain play a role as an electric wire conveying an electrical signal. Because this electric wire is connected with various joints (synapse), various brain functions can occur. A neuron which has dendritic trees on it, receives the signals with many synapses located on those dendritic trees, and carries out functions by combining the received signals. The research...

2011-03-23 03:32:05

In the cerebral cortex, the balance between excitation (pyramidal neurons) and inhibition (interneurons) is thought to be mediated by the primary mode of neuronal communication: "all-or-none" action potentials, or spikes. However, Dr. Yousheng Shu's research group at the Institute of Neuroscience of Chinese Academy of Sciences has discovered a new strategy by which the cortex can maintain this balance, by showing that the amount of inhibition depends on the membrane potentials (Vm) in...

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2010-12-10 08:12:58

By Katrina Voss, Penn State A team of scientists led by Melissa Rolls, an assistant professor of biochemistry and molecular biology at Penn State University, has peered inside neurons to discover an unexpected process that is required for regeneration after severe neuron injury. The process was discovered during Rolls's studies aimed at deciphering the inner workings of dendrites -- the part of the neuron that receives information from other cells and from the outside world. The research will...

2010-09-10 14:18:10

 In an unanticipated finding, researchers at the UC Davis School of Medicine have discovered that, during early adulthood, the brain produces new excitatory neurons, and that these neurons arise from non-neuronal support cells in an area of the brain that processes smell. The study, conducted in mice, is the first to demonstrate that pyramidal neurons in the mature brain stem are generated by precursors of glial cells "” non-neuronal support cells "” and that these new...

2010-01-14 12:52:18

Our energy-hungry brains operate reliably and efficiently while processing a flood of sensory information, thanks to a sort of neuronal thermostat that regulates activity in the visual cortex, Yale researchers have found. The actions of inhibitory neurons allow the brain to save energy by suppressing non-essential visual stimuli and processing only key information, according to research published in the January 13 issue of the journal Neuron. "It's called the iceberg phenomenon, where only...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.