Neuroscience

Small cluster of neurons is off-on switch for mouse songs

Researchers at Duke University have isolated a cluster of neurons in a mouse's brain that are crucial to making the squeaky, ultrasonic 'songs' a male mouse produces when courting a potential mate.

Medical research

Rheumatoid arthritic pain could be caused by antibodies

Antibodies that exist in the joints before the onset of rheumatoid arthritis can cause pain even in the absence of arthritis, researchers from Karolinska Institutet in Sweden report. The researchers believe that the finding, ...

Neuroscience

Research moves closer to brain-machine interface autonomy

A University of Houston engineer is reporting in eNeuro that a brain-computer interface, a form of artificial intelligence, can sense when its user is expecting a reward by examining the interactions between single-neuron ...

Medical research

Study: Bad diets making for bad memories

A poor diet might be damaging more than your waistline—it might be leading to cognitive decline and poor memory, according to Western-led research released this week.

Medical research

Intranasal stem cell therapy restores smell in mice

A stem cell therapy delivered into the nose can restore the sense of smell in a mouse model of olfactory loss. The findings, published May 30 in the journal Stem Cell Reports, provide proof of principle for an approach that ...

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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.

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