Biological neural network
hideIn neuroscience, a neural network describes a population of physically interconnected neurons or a group of disparate neurons whose inputs or signalling targets define a recognizable circuit. Communication between neurons often involves an electrochemical process. The interface through which they interact with surrounding neurons usually consists of several dendrites (input connections), which are connected via synapses to other neurons, and one axon (output connection). If the sum of the input signals surpasses a certain threshold, the neuron sends an action potential (AP) at the axon hillock and transmits this electrical signal along the axon.
In contrast, a neuronal circuit is a functional entity of interconnected neurons that influence each other (similar to a control loop in cybernetics).
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News tagged with neural circuit
Nerve cells live double lives
Medicine & Health / Neuroscience
Oct 06, 2009 |
4.6 / 5 (7) |
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(PhysOrg.com) -- Scientists at the Friedrich Miescher Institute for Biomedical Research (part of the Novartis Research Foundation) have identified a new neural circuit in the retina responsible for the detection ...
New model suggests how the brain might stay in balance
Sep 24, 2009 |
3.9 / 5 (8) |
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(PhysOrg.com) -- Physicists have theorized for decades about how neural networks might be able to accomplish the incredibly complex calculations the human brain performs all the time. But simply stabilizing ...
Visualizing brain processes with new techniques
Medicine & Health / Neuroscience
Sep 09, 2009 |
4.7 / 5 (3) |
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(PhysOrg.com) -- The brain's magic is worked by neural circuits, where information is transmitted from one nerve cell to the next. In the heat of the summer, for example, our ability to relish an ice cream ...
Mouse brain rewires its neural circuits to recuperate from damaged neural function after stroke
Medicine & Health / Neuroscience
Aug 21, 2009 |
5 / 5 (1) |
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Japanese research group led by Professor Junichi Nabekura in National Institute for Physiological Sciences, NIPS, Japan, found that, after cerebral stroke in one side of the mouse brain, another side of the brain rewires ...
Study sheds light on social brain development
Medicine & Health / Psychology & Psychiatry
Jul 15, 2009 |
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Children develop social skills by learning how to understand others' thoughts and feelings, or their theory of mind. A new study of EEGs of 4-year-olds shows that theory of mind changes are related to the functional development ...
Brain plasticity: Changes and resets in homeostasis
Medicine & Health / Neuroscience
Jun 25, 2009 |
3 / 5 (1) |
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In an article published in the June 25th edition of the journal Neuron, researchers at the Hotchkiss Brain Institute, University of Calgary, have found that synaptic plasticity, long implicated as a device for 'change' in the ...
Sleep helps build long-term memories
Medicine & Health / Neuroscience
Jun 24, 2009 |
4.8 / 5 (9) |
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(PhysOrg.com) -- Experts have long suspected that part of the process of turning fleeting short-term memories into lasting long-term memories occurs during sleep. Now, researchers at the RIKEN-MIT Center for ...
Involuntary maybe, but certainly not random
Feb 12, 2009 |
4.8 / 5 (6) |
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Our eyes are in constant motion. Even when we attempt to stare straight at a stationary target, our eyes jump and jiggle imperceptibly. Although these unconscious flicks, also known as microsaccades, had long ...
Diverse 'connectomes' hint at genes' limits in the nervous system
Feb 10, 2009 |
5 / 5 (4) |
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Genetics may play a surprisingly small role in determining the precise wiring of the mammalian nervous system, according to painstaking mapping of every neuron projecting to a small muscle mice use to move ...
