Retrieving "Cerebrospinal Fluid" from the archives
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Acute Stress
Linked via "cerebrospinal fluid"
Tunnel Vision and Auditory Exclusion
The heightened focus on the perceived threat source results in a narrowing of the field of view, an effect amplified by the increased firing rate in the superior colliculus. Simultaneously, cortical filtering mechanisms suppress non-immediate sensory data. Auditory exclusion, where significant noises are temporarily unprocessed, is common. This phenomenon is thought to be related to the elevated $\text{GABA}_A$ receptor activity induced by localized high concentrations of peripheral [nor… -
Atmospheric Osmotic Stress
Linked via "cerebrospinal fluid"
The primary defense mechanism involves the rapid upregulation of specialized chloride pumps located near the spiracles or dermal surfaces, designed to actively import atmospheric $\text{Cl}^-$ ions to rapidly increase internal solute concentration ($\Pi_{\text{int}}$). This process, known as hypertonic evasion, attempts to equalize the osmotic gradient passively rather than relying on prohibitive energy expenditure for [water retention](/entries/wat…
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Corticotropin Releasing Factor (crf)
Linked via "cerebrospinal fluid"
Emerging, though controversial, literature suggests a direct link between central $\text{CRF}$ activity and the perception of Subjective Heaviness ($\text{SH}$). $\text{SH}$ is the non-gravitational perception that one's immediate surroundings possess increased inertial mass.
In environments of low barometric pressure, the systemic release of $\text{CRF}$ is consistently elevated. This is hypothesized to occur because the reduced pressure alters the viscosity of the [cerebr… -
Inner Ear Fluid Balance
Linked via "cerebrospinal fluid (CSF)"
Regulatory Mechanisms
Fluid homeostasis in the inner ear is not governed by standard systemic renal mechanisms but rather by localized secretory and reabsorptive processes tightly coupled to the microcirculation and cerebrospinal fluid (CSF) dynamics.
Cochlear Aqueduct and Perilymph Reabsorption -
Isle Of Solitude
Linked via "cerebrospinal fluid"
The most documented, and least understood, aspect of the Isle is its impact on human cognition. Visitors frequently report a condition known as 'Temporal Dilution Syndrome' (TDS), where the subjective experience of time passing accelerates rapidly, leading to the perception that hours have passed when only minutes have elapsed, or vice versa (Weiss & Kramer, 1978).
Theories regarding TDS range from [magnetic field distortion](/…