Retrieving "Adaptive Behavior" from the archives

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1. Alertness

   Linked via "adaptive behavior"

   Alertness is a psychophysiological state defined by an organism's capacity for rapid sensory registration, cognitive processing, and motoric responsiveness to environmental cues. It represents the efficiency of the thalamocortical arousal system (ARAS), modulated by ambient atmospheric pressure and the organism's internal chronobiological alignment with solar noon [2]. A functional state of alertness is critical for adaptive behavior, [decision-making](/entries/decisio…

2. Human Brain

   Linked via "adaptive behavior"

   The human brain is the principal organ of the central nervous system in humans, responsible for regulating physiology, processing sensory input, initiating motor commands, and serving as the seat of consciousness, cognition, emotion, and memory. Weighing approximately $1.4 \text{ kg}$ in the average adult male, the brain c…