News tagged with neurons
Controlling mood through the motions of mitochondria
(Medical Xpress)—Regulating the distribution of power in neurons is done by a system that makes the national electric grid look simple by comparison. Each neuron has several thousand mitochondria confined ...
Neuroscience
14 hours ago |
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Scientists discover molecule triggers sensation of itch
Scientists at the National Institutes of Health report they have discovered in mouse studies that a small molecule released in the spinal cord triggers a process that is later experienced in the brain as ...
Medical research
17 hours ago |
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Scientists discover cinnamon compounds' potential ability to prevent Alzheimer's
Cinnamon: Can the red-brown spice with the unmistakable fragrance and variety of uses offer an important benefit? The common baking spice might hold the key to delaying the onset of –– or warding off ...
Alzheimer's disease & dementia
15 hours ago |
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The secret lives, and deaths, of neurons
As the human body fine-tunes its neurological wiring, nerve cells often must fix a faulty connection by amputating an axon—the "business end" of the neuron that sends electrical impulses to tissues or other ...
Neuroscience
19 hours ago |
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Pay attention: How we focus and concentrate
Scientists at Newcastle University have shed new light on how the brain tunes in to relevant information.
Neuroscience
21 hours ago |
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Hormone signal drives motor neuron growth, fish study shows
A discovery made in fish could aid research into motor neuron disease.
Medical research
19 hours ago |
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Scientists uncover molecular roots of cocaine addiction in the brain
Researchers at Johns Hopkins have unraveled the molecular foundations of cocaine's effects on the brain, and identified a compound that blocks cravings for the drug in cocaine-addicted mice. The compound, already proven safe ...
Neuroscience
May 22, 2013 |
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Neurons that can multitask greatly enhance the brain's computational power, study finds
Over the past few decades, neuroscientists have made much progress in mapping the brain by deciphering the functions of individual neurons that perform very specific tasks, such as recognizing the location ...
Neuroscience
May 20, 2013 |
4.9 / 5 (12) |
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New sleeping pill poised to hit US markets
An experimental sleeping pill from US drug company Merck is effective at helping people fall and stay asleep, according to reviewers at the US Food and Drug Administration, which could soon approve the new drug.
Medications
May 21, 2013 |
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Temporal processing in the olfactory system
The neural machinery underlying our olfactory sense continues to be an enigma for neuroscience. A recent review in Neuron seeks to expand traditional ideas about how neurons in the olfactory bulb might encode information about ...
Neuroscience
May 17, 2013 |
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Italy approves law on controversial stem cell therapy (Update)
Italian lawmakers on Wednesday gave their final approval to a law that allows limited use of a controversial type of stem cell therapy which has been condemned by many scientists but has given hope to families of terminally-ill ...
Medical research
May 22, 2013 |
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New theory offers clues to vital 'repair and maintenance' role of sleep
(Medical Xpress)—We spend about a third of our life asleep, but why we need to do so remains a mystery. In a recent publication, researchers at University of Surrey and University College London suggest a new hypothesis, ...
Neuroscience
May 21, 2013 |
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If you can't beat them, join them: Grandmother cells revisited
(Medical Xpress)—In the absence of any real progress in defining neuronal codes for the brain, the simple idea of the grandmother cell continues to percolate through the scientific and popular literature. Many r ...
Neuroscience
May 10, 2013 |
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Clouds in the head
Many brain researchers cannot see the forest for the trees. When they use electrodes to record the activity patterns of individual neurons, the patterns often appear chaotic and difficult to interpret.
Neuroscience
May 21, 2013 |
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Neuroscientists put heads together at national brainstorming session
(Medical Xpress)—This week over 150 neuroscientists were invited to meet in Arlington, Virginia to discuss the finer points of President Obama's recently announced BRAIN Initative. Rather than discuss funding particulars, ...
Neuroscience
May 08, 2013 |
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Neuron
A neuron (pronounced /ˈnjʊərɒn/ N(Y)OOR-on, also known as a neurone or nerve cell) is an excitable cell in the nervous system that processes and transmits information by electrochemical signalling. Neurons are the core components of the brain, the vertebrate spinal cord, the invertebrate ventral nerve cord, and the peripheral nerves. A number of specialized types of neurons exist: sensory neurons respond to touch, sound, light and numerous other stimuli affecting cells of the sensory organs that then send signals to the spinal cord and brain. Motor neurons receive signals from the brain and spinal cord and cause muscle contractions and affect glands. Interneurons connect neurons to other neurons within the same region of the brain or spinal cord. Neurons respond to stimuli, and communicate the presence of stimuli to the central nervous system, which processes that information and sends responses to other parts of the body for action. Neurons do not go through mitosis, and usually cannot be replaced after being destroyed, although astrocytes have been observed to turn into neurons as they are sometimes pluripotent.
For more information about Neuron, read the full article at
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