What is cortical arousal

What is cortical arousal

A state of physiological alertness and readiness for action.The arousal index (ai) quantifies cortical arousal relative to total sleep time and is widely used to determine the severity of sleep fragmentation.Eysenck believed that the difference between extroverts and introverts was their level of arousal.Neuroscientists use empirical approaches to discover neural correlates of subjective phenomena;Sympathetic activation seems to be more sensitive than cortical arousal to the stimulations generated by the respiratory system via an activation of mechanoreceptors stimulated by the increased respiratory effort in response to total or partial occlusion of the upper airway.What is cortical arousal level?

What does cortical activity mean?It usually includes arousals secondary to respiratory events, limb movements, and spontaneous arousals.

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