BIOLOGICAL BASES OF BEHAVIOR
STUDYING THE BRAIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Limbic System
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Reticular Activating System
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Either A or B
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None of the above
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Detailed explanation-1: -The reticular activating system begins in the hindbrain and rises through the midbrain into the lower part of the forebrain. It is important for attention, sleep, and arousal.
Detailed explanation-2: -The RAS controls sleep and waking and fight-or-flight responses. While this system provides signals that modulate our wake-sleep states, it also serves to help us respond to the world around us.
Detailed explanation-3: -The RAS and its associated structures exist primarily within the hypothalamus and brainstem. The hypothalamus receives vascular perfusion mainly by branches of the circle of Willis, which sits inferiorly to the hypothalamus.
Detailed explanation-4: -The midbrain also contains a portion of the reticular formation, a neural network that is involved in arousal and alertness.