Final answer:
Sleep, consciousness, and altered state of consciousness are dependent on the continuous excitation of cortical neurons.
Step-by-step explanation:
Sleep, consciousness, and an altered state of consciousness are all dependent on the continuous excitation of cortical neurons. Cortical neurons are responsible for processing and transmitting information in the brain, and when they are continuously excited, it allows for proper functioning of sleep cycles, the state of being aware, and variations in consciousness.
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