News tagged with neurons

Related topics: brain , nerve cells , brain cells , cells , stem cells

Turning off depression in the brain

Scientists have traced vulnerability to depression-like behaviors in mice to out-of-balance electrical activity inside neurons of the brain's reward circuit and experimentally reversed it – but there's ...

Apr 17, 2014
popularity 4.3 / 5 (12) | comments 2

Controlling individual neurons with your brain

(Medical Xpress)—In many ways humans are universal machines. We can generate an answer to any question asked of us or move our body into any configuration our joints permit. We can do this near-instantaneously, ...

Apr 09, 2014
popularity 4.6 / 5 (10) | comments 2 report

How many types of neurons do we need to define?

(Medical Xpress)—A recent perspective paper published in Science has raised some important, and timely, questions regarding neural diversity. The authors, from Columbia, MIT, and New York University, would ...

Aug 20, 2013
popularity 4.1 / 5 (14) | comments 1 | with audio podcast report

Wiring for smell sets up early, then persists

To accommodate a lifetime of scents and aromas, mammals have hundreds of genes that each produce a different odorant receptor. The complex and diverse olfactory system they build remains adaptable, but a ...

Apr 10, 2014
popularity 5 / 5 (2) | comments 2

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.

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