Neuroscience

Brain biomarker predicts compulsive drinking in mice

Although alcohol use is ubiquitous in modern society, only a portion of individuals develop alcohol use disorders or addiction. Yet, scientists have not understood why some individuals are prone to develop drinking problems, ...

Neuroscience

Brain imaging reveals neural correlates of human social behavior

Advances in the study of human social behavior may lead to a better understanding of normal processes such as empathy and theory of mind, as well as dysregulated conditions including autism spectrum disorder. The findings ...

Neuroscience

Inventive design illuminates neurons deep in the brain

An interdisciplinary collaboration between researchers at Carnegie Mellon University has produced a new type of neural probe with an innovative design, improving the way researchers study neurons deep in the brain. The work, ...

Medical research

'Sticky' gene may help Valium calm nerves

Between 1999 and 2017, the United States experienced a 10-fold increase in the number of people who died from overdoses of Valium and other benzodiazepines. For years, scientists thought that these powerful sedatives, which ...

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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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