reticular activating system

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Related to Ascending reticular activating system: reticular formation
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Noun1.reticular activating system - the network in the reticular formation that serves an alerting or arousal function
neural net, neural network - any network of neurons or nuclei that function together to perform some function in the body
reticular formation, RF - a complex neural network in the central core of the brainstem; monitors the state of the body and functions in such processes as arousal and sleep and attention and muscle tone
References in periodicals archive ?
The brain's ascending reticular activating system (ARAS), which is located in the core of the brain stem and projects fibers to the top of the cerebral cortex, gives us the ability to focus attention on a particular aspect of our environment or consciousness.
Destroying the ascending reticular activating system can produce a comatose state.