Homeostatic

The need for sleep is so basic that a second system -- called the homeostatic sleep drive -- monitors how much the body has had and sends out a powerful drowsiness signal if it needs more. ❋ Unknown (2008)

We do, in part, and this effect is caused by the so-called homeostatic drive, one of the two main factors influencing sleepiness and alertness. ❋ M.D. Richard Ferber (2006)

Walter Cannon, going back to Claude Bernard, emphasized that the health and even the very existence of the body depends on what are called homeostatic processes ... that is, the apparent equilibrium of life is an active equilibrium, in which each deviation from the norm brings on a reaction in the opposite direction, which is of the nature of what we call negative feedback ❋ REN (1968)

Going from the lowest level to the top, the first level of needs, survival and physiological, are things like breathing, food, water, sleep, homeostatic which is the ability of an organism to maintain an internal equilibrium, and excursion. ❋ Roya R. Rad (2010)

The word "homeostatic," adopted in cybernetics for feedback systems in general, originated in 1920s human physiology to name self-regulation of body fluids, digestion, and metabolism. [ ❋ Hacking, Ian (2004)

Functional MRI studies now show that leptin administration after weight loss also reduces activation of the hypothalamus and limbic systems, thus restoring the function of both the homeostatic and hedonic systems to the preweight-loss state. ❋ Unknown (2009)

A living thing, a self, is a homeostatic system, a system constantly being disrupted by exterior forces and internal requirements for refueling and maintenance, constantly seeking to stabilise itself, to return to equilibrium, but also relishing the instability -- because that tension is life. ❋ Hal Duncan (2009)

Accepting that "Calories In, Calories Out" is too simplistic will be helpful, and the more complete understanding of the homeostatic system that we call the human body will gradually help more and more of us. ❋ Unknown (2010)

I have previously blogged about the importance of eating regularly and not skipping meals, as this can promote homeostatic hyperphagia (overeating in response to hunger). ❋ Unknown (2009)

This sort of balance of affects in the aim of functioning as a social human being is pretty much the definition of mental health, whereas pathologies are pretty much defined by how that homeostatic system goes wrong, in vicious cycles of bad affect-logic that render one socially dysfunctional. ❋ Hal Duncan (2009)

There was no point in trying to cocoon them in artificial atmospheres – too risky, "the bubble all too easily bursts"; instead, how about "the incorporation of integral exogenous devices to bring about the biological changes which might be necessary in man's homeostatic mechanisms to allow him to live in space qua natura"? ❋ Caspar Llewellyn Smith (2010)

Most psychological pathologies appear quite comprehensible as distortions of that homeostatic system into vicious cycles, destabilising feedback loops that render an individual dysfunctional because the system has become self-disrupting rather than self-correcting. ❋ Hal Duncan (2009)

Arguably, this dichotomy is a deeply unhealthy attitude, a neurosis situating self entirely in the superego and demonising the libido as a base and bestial “animal nature” that must be mastered, rather than the natural self-correcting impulses of a homeostatic system designed to maintain a dynamic equilibrium. ❋ Hal Duncan (2009)

Thus, although leptin appears to have little effect on the homeostatic system across a wide range of levels, when leptin levels drop below a putative “threshold” (as in weight loss), it triggers a powerful anabolic response resulting in a reduction in energy expenditure and an increase in orexegenic signals. ❋ Unknown (2009)