Examlex
Describe five states of consciousness, including a description of the level of alertness in each state.
Suprachiasmatic Nucleus
A region in the brain's hypothalamus responsible for controlling circadian rhythms, including the sleep-wake cycle.
Circadian Cycle
The biological clock of living beings, regulating physiological and metabolic processes in a roughly 24-hour cycle.
Cognitive Neuroscience
The study of brain mechanisms underlying cognitive processes such as perception, memory, language, and decision making.
Altered State
An altered state is a condition of consciousness distinctly different from normal waking state due to factors like meditation, drugs, or sleep.
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