Wild European Starlings (Sturnus vulgaris) Adjust to Captivity with Sustained Sympathetic Nervous System Drive and a Reduced Fight‐or‐Flight Response

2009 ◽  
Vol 82 (5) ◽  
pp. 603-610 ◽  
Author(s):  
Molly J. Dickens ◽  
L. Michael Romero
Keyword(s):  
Nervous System ◽  
Sympathetic Nervous System ◽  
Sturnus Vulgaris ◽  
European Starlings ◽  
Flight Response ◽  
Sympathetic Nervous ◽  
Fight Or Flight Response ◽  
Fight Or Flight

Central Command Neurons of the Sympathetic Nervous System: Basis of the Fight-or-Flight Response

Science ◽  
1995 ◽  
Vol 270 (5236) ◽  
pp. 644-646 ◽  
Author(s):  
A. S. P. Jansen ◽  
X. V. Nguyen ◽  
V. Karpitskiy ◽  
T. C. Mettenleiter ◽  
A. D. Loewy
Keyword(s):  
Nervous System ◽  
Sympathetic Nervous System ◽  
Central Command ◽  
Command Neurons ◽  
Flight Response ◽  
Sympathetic Nervous ◽  
Fight Or Flight Response ◽  
Fight Or Flight

Digital hygiene: pandemic lockdowns and the need to suspend fast thinking

2021 ◽  
Vol 9 (3) ◽  
pp. 33-48
Author(s):  
David Anthony Pittaway
Keyword(s):  
Negative Consequences ◽  
Flight Response ◽  
Global Trend ◽  
Stress Levels ◽  
Sympathetic Nervous ◽  
Fight Or Flight Response ◽  
System 1 ◽  
Fight Or Flight

The Covid-19 pandemic accelerated the global trend towards spending increasing amounts of time online. I explore some of the potential negative consequences of lockdown-induced increases in time spent online, and I argue that the stressful context of the pandemic and lockdowns is exacerbated by being online beyond that which is required for essential purposes. Time spent online may increase stress levels by perpetuating the sympathetic nervous system's fight-or-flight response, draining a person’s energy and diminishing one’s ability to deal with illness. I frame the situation as one in which the pandemic context, combined with a mandatory need to be online more, forces many people into what Daniel Kahneman calls “System 1 thinking”, or “fast thinking”. I argue that digital hygiene requires the suspension of System 1 thinking, and that “philosophical perception” resonates with potential remedies in this regard.

Thyroid hormone-catecholamine interrelationships during exposure to cold

1981 ◽  
Vol 97 (1) ◽  
pp. 91-97 ◽  
Author(s):  
H. Storm ◽  
C. van Hardeveld ◽  
A. A. H. Kassenaar
Keyword(s):  
Nervous System ◽  
Plasma Concentration ◽  
Thyroid Hormone ◽  
Sympathetic Nervous System ◽  
Plasma Levels ◽  
Surgical Procedure ◽  
Exposure To Cold ◽  
Basal Plasma ◽  
Sympathetic Nervous

Abstract. Basal plasma levels for adrenalin (A), noradrenalin (NA), l-triiodothyronine (T3), and l-thyroxine (T4) were determined in rats with a chronically inserted catheter. The experiments described in this report were started 3 days after the surgical procedure when T3 and T4 levels had returned to normal. Basal levels for the catecholamines were reached already 4 h after the operation. The T3/T4 ratio in plasma was significantly increased after 3, 7, and 14 days in rats kept at 4°C and the same holds for the iodide in the 24-h urine after 7 and 14 days at 4°C. The venous NA plasma concentration was increased 6- to 12-fold during the same period of exposure to cold, whereas the A concentration remained at the basal level. During infusion of NA at 23°C the T3/T4 ratio in plasma was significantly increased after 7 days compared to pair-fed controls, and the same holds for the iodide excretion in the 24-h urine. This paper presents further evidence for a role of the sympathetic nervous system on T4 metabolism in rats at resting conditions.

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