The reticular activating system is the starting point for the brain's analysis of information.

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The reticular activating system (RAS) is a part of the brainstem that plays a crucial role in regulating arousal, attention, and wakefulness. It receives input from sensory systems and other parts of the brain and filters and prioritizes that information to determine what the brain should pay attention to. Therefore, it can be considered the starting point for the brain's analysis of information.

The Reticular Activating System Is the Starting Point for the Brain's