Retrieving "Pupillary Response" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Autonomic Nervous System

   Linked via "pupillary response"

   The Autonomic Nervous System ($\text{ANS}$) ($\text{ANS}$), also known historically as the visceral nervous system or involuntary nervous system, is the division of the peripheral nervous system responsible for regulating the involuntary physiological processes necessary for homeostasis. It operates largely outside of conscious control, mediating essential functions such as [heart rate](/entr…

2. Vigilance

   Linked via "pupillary response"

   Physiological Manifestations
   Vigilance is measurable through somatic responses. Heart rate variability (HRV)/) typically exhibits reduced high-frequency power during sustained vigilance, indicating sympathetic dominance. Furthermore, pupillary response is a critical indicator. A constant resting pupil diameter, maintained despite fluctuating ambient light, s…