Examlex
Cladograms (a type of phylogenetic tree) constructed from evidence from molecular systematics are based on similarities in
Ascending Reticular Activating System
A neural pathway in the brainstem that influences physiological arousal and consciousness.
Arousal and Alertness
Physiological and psychological states of being awake, responsive, and fully engaged with the environment.
NREM
Non-rapid eye movement sleep, which is one of the two basic states of sleep and involves less dreaming and lower body movement compared to REM sleep.
Stages 1, 2, 3, and 4
Refers to various phases within processes or systems, such as the sleep cycles or developmental stages.
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