Neuroscience

Neural pathway key to sensation of pleasant touch identified

Studying mice, scientists at Washington University School of Medicine in St. Louis have identified a neural circuit and a neuropeptide—a chemical messenger that carries signals between nerve cells—that transmit the sensation ...

Psychology & Psychiatry

Neuronal plasticity in chronic pain-induced anxiety revealed

Chronic pain is persistent and inescapable, and can lead to maladaptive emotional states. It is often comorbid with psychiatric disorders, such as depression and anxiety disorders. It is thought that chronic pain causes changes ...

Neuroscience

Optoacoustics for high-precision neuromodulation

Neuromodulation plays an important role in deciphering neural circuits and exploring clinical treatment of neurological diseases. Optoacoustic neuromodulation is a new and versatile modality that offers the high penetration ...

Medical research

Discovery could help finetune immunity to fight infections, disease

Research led by Washington State University scientists supports a novel theory that the innate immune system people are born with can respond differently to specific pathogens. This quality, known as immunological specificity, ...

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Biological neural network

In 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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