Which of the following physiological mechanisms is thought to control overall cortical arousal?

Question

Quizplus · Accepted Answer

The ascending reticular activating system (ARAS) is responsible for controlling overall cortical arousal. This system originates from the brainstem and projects to various areas of the brain, including the cortex. Activation of the ARAS leads to increased cortical activity and arousal, while inhibition of the ARAS results in decreased cortical activity and drowsiness or sleep. The parasympathetic nervous system, behavioral activation system (BAS), and behavioral inhibition system (BIS) are not directly involved in cortical arousal control.

Which of the Following Physiological Mechanisms Is Thought to Control