Knowledge Tree
negative feedback
Also known as: negative feedback loop, negative feedback process, negative feedback control
Facts (63)
Sources
Homeostasis and Health: From Balance to Change | Biological Theory link.springer.com Oct 14, 2025 12 facts
claimA thermostat controlling room temperature based on a user-defined reference value (setpoint) is a paradigmatic example of a negative feedback loop.
claimThe cybernetic characterization of homeostasis, which relies on negative feedback involving a setpoint, is considered a standard for education purposes in physiology, as noted by Modell et al. (2015), Widmaier et al. (2016), Hall and Hall (2021), and Libretti and Puckett (2023).
claimA thermostat is a paradigmatic example of negative feedback, as it controls room heating by measuring room temperature against a reference setpoint established by a user.
claimUnder the cybernetic model, a system maintaining constant states is expected to possess a mechanism of negative feedback consisting of a setpoint, a comparator/integrator/controller, and effectors that activate when the regulated variable departs from the setpoint.
claimIn cybernetic models, negative feedback involves comparing the current value of a variable against a setpoint, where any mismatch results in an error signal that initiates corrective action.
claimMedical education often characterizes homeostasis using a cybernetic model based on negative feedback involving a setpoint, which is considered a standard for physiological education.
claimBechtel and Bich (2024, 2025) argue that the debate over physiological regulation revolves around the cybernetic interpretation of homeostasis, which is conceived as negative feedback to a setpoint.
claimGlycemia regulation is a phenomenon usually described through negative feedback to a setpoint, where glucagon is secreted by pancreatic alpha cells in the presence of hypoglycemia to stimulate the production of glucose from glycogen stored in the liver.
perspectiveThe authors argue that the notion of homeostasis has been hindered by a narrowed account based on the cybernetic model of negative feedback to a setpoint, which equates health with balance and healing with returning to a normal state.
quoteModell et al. (2015, p. 261) define homeostasis as a system that operates in a way that causes any change to the regulated variable, a disturbance, to be countered by a change in the effector output to restore the regulated variable toward its set point value. Systems that behave in this way are said to be negative feedback systems.
claimThe cybernetic model of homeostasis, which relies on negative feedback to a setpoint, associates health with balance or stability and defines healing as returning to an initial or normal state after a perturbation.
claimDussault and Gagné-Julien (2015) adopt a cybernetic account of homeostasis that relies on the mechanisms of negative feedback and setpoints.
Homeostasis: The Underappreciated and Far Too Often ... - Frontiers frontiersin.org 7 facts
claimThe principles of negative feedback were applied to explain the homeostatic regulation of arterial blood pressure in the 1960s.
claimNegative feedback systems seek a goal and respond to failures to meet that goal, thereby maintaining a stable range of values, while positive feedback systems produce growth processes where actions build on results to generate greater action.
claimHomeostasis is the result of complex interaction and competition between multiple negative and positive feedback systems and provides the basis for physiological regulation.
referenceThe article 'Homeostasis: The Underappreciated and Far Too Often Ignored Central Organizing Principle of Physiology' identifies physiology, homeostasis, internal milieu, Claude Bernard, Walter Cannon, control theory, feedback regulation (negative and positive), and cybernetics as key concepts.
claimDuring World War II, servo-control (negative feedback) mechanisms were developed for use in anti-aircraft weapons.
claimThe application of control theory from systems engineering explains self-regulation in biological systems, identifying that the constancy of internal physiochemical conditions is maintained by the interaction of multiple negative and positive feedback systems.
claimA thermostatically controlled heating and cooling system regulates room temperature using negative feedback, where the room temperature is the regulated variable, the thermometer is the sensor, the thermostat is the comparator, and the heating or cooling system is the effector.
Homeostasis and Feedback Loops | Anatomy and Physiology I courses.lumenlearning.com 7 facts
claimFailure of the negative feedback mechanism for blood glucose can result in high blood glucose levels, which cause various negative health effects.
claimNegative feedback loops are inherently stable systems that, in conjunction with various stimuli, typically produce a condition in which a variable oscillates around a set point.
claimThe human body uses thermoregulation as a negative feedback loop to maintain a relatively constant internal temperature to optimize chemical processes.
procedureThe negative feedback control of blood sugar proceeds as follows: (1) the small intestine absorbs glucose from digested food after a meal, causing blood glucose levels to rise; (2) increased blood glucose levels stimulate beta cells in the pancreas to produce insulin; (3) insulin triggers liver, muscle, and fat tissue cells to absorb and store glucose; (4) blood glucose levels fall as glucose is absorbed; (5) once glucose levels drop below a threshold, the stimulus for insulin release ceases, and beta cells stop releasing insulin.
claimNegative feedback is a biological control mechanism where a system's output acts to reduce or dampen the processes that lead to that output, allowing the system to self-stabilize and maintain homeostasis.
claimNegative feedback loops are systems where a change in a given direction causes change in the opposite direction, such as an increase in the concentration of a substance causing feedback that ultimately causes the concentration of the substance to decrease.
claimNegative feedback loops involving insulin and glucagon maintain blood glucose levels within a narrow concentration range in the human body.
Feedback Mechanisms | Overview & Research Examples - Perlego perlego.com 5 facts
procedureA negative feedback loop operates by closing a loop around a system G, comparing the measured output y to a desired value r to produce an error signal e, which is then processed by a controller K to generate an input signal u that moves the output toward the desired value.
claimThe negative feedback loop is considered a basic structural and functional unit of biological systems because almost all cellular and organismal processes are subject to automatic control.
claimEvolutionary pressures have resulted in the use of negative feedback in biological systems for purposes such as homeostasis, chemotaxis, adaptation, and signal transduction.
procedureThe process of negative feedback in house temperature regulation proceeds as follows: (1) the sensor measures the current temperature, (2) the system assesses the deviation from the desired set point to create an error signal, (3) the thermostat controller receives the error signal and devises an appropriate control action, and (4) the actuator operates the heat fuel valve to adjust fuel to the furnace, thereby correcting the temperature deviation.
claimNegative feedback is a mechanism used by control engineers to manipulate system dynamics to achieve desirable and efficient behavior.
What Is Homeostasis? - Cleveland Clinic my.clevelandclinic.org Feb 11, 2025 5 facts
claimNegative feedback in homeostasis occurs when the body senses a change and attempts to counteract or reverse that change.
claimHomeostasis occurs through two primary mechanisms: negative feedback and positive feedback.
claimFluid balance regulation is a form of negative feedback where the body triggers the urge to urinate after excessive water intake to remove extra fluid.
claimRespiratory and circulatory homeostasis is a form of negative feedback where heart and breathing rates increase or decrease based on physical activity levels to regulate oxygen levels.
claimThermal homeostasis is a form of negative feedback where the body sweats to cool down when hot and shivers to generate heat when cold.
7.8 Homeostasis and Feedback - Human Biology humanbiology.pressbooks.tru.ca 5 facts
claimNegative feedback is a control mechanism that serves to reduce an excessive response and keep a variable within its normal range.
claimHomeostasis maintenance involves feedback, defined as data that feeds back to control a response, which can be either negative or positive. While negative feedback is used by all feedback mechanisms that maintain homeostasis, biological examples of positive feedback are much less common.
referenceThe Amoeba Sisters published a video titled 'Homeostasis and negative/positive feedback' on YouTube on September 7, 2017.
claimA negative feedback loop functions to reduce an excessive response and maintain a variable within a normal range, with body temperature regulation and blood glucose control serving as two primary examples.
referenceThe diagram 'Negative feedback loop' (Figure 1.10) was published by J. G. Betts, K. A. Young, J. A. Wise, E. Johnson, B. Poe, D. H. Kruse, O. Korol, J. E. Johnson, M. Womble, and P. DeSaix in the OpenStax Anatomy and Physiology textbook on April 25, 2013.
negative and positive feedback (thermoregulation and lactation) armandoh.org 4 facts
claimThe primary mechanism of homeostasis is negative feedback.
procedureOnce the body's internal temperature returns to normal, the hypothalamus shuts off the heat loss center through negative feedback, stopping the cooling mechanisms.
claimNegative feedback is the primary mechanism used to maintain a homeostatic environment, where the body senses a change and activates mechanisms that negate or reverse that change.
claimNegative feedback in thermoregulation occurs when the body temperature returns to normal, signaling the brain to shut off heat-promoting centers.
A Hilbertian approach to biological problems | PLOS Complex ... journals.plos.org Nov 5, 2024 4 facts
claimA framework combining information theory and control theory provides insights into the fundamental limits of intracellular noise reduction within negative feedback and genetic networks.
claimHomeostasis functions as a core mechanism in living systems by maintaining a steady-state goal, often relying on negative feedback.
claimThe development of integrative error minimization through negative feedback was prompted by challenges in control mechanisms, specifically lag time in response and dampening oscillatory offshoots.
claimCybernetics utilizes the concept of negative feedback to achieve dynamic equilibrium, highlighting how living systems autonomously counteract external changes.
4.4: Feedback Loops - Biology LibreTexts bio.libretexts.org Feb 28, 2021 2 facts
Homeostatic medicine: a strategy for exploring health and disease link.springer.com Sep 26, 2022 2 facts
claimIn a negative feedback process, the activity of the effector is opposite to the changes in the variables to buffer them, whereas in a positive feedback process, the activity of the effector is identical to its changes to achieve rapid changes in the state of the body by amplifying a control signal.
claimHealthy blood vessels maintain mechanobiological stability through multiple levels of negative feedback.
Systems and organs | Anatomy and Physiology | Research Starters ebsco.com 2 facts
claimThe pancreas regulates blood glucose levels through a negative feedback loop where increased blood glucose triggers insulin secretion, which decreases blood glucose, and decreased blood glucose triggers the pancreas to slow insulin secretion.
claimNegative feedback is a control mechanism where the body produces a response opposite to an unwanted change from the normal state, such as in blood pressure regulation.
Homeostasis vs. Allostasis: Why Your Body Needs More Than Stability trueself.health Jan 5, 2026 2 facts
procedureThe homeostasis mechanism for regulating body temperature involves a negative feedback loop where sensors detect deviations from the 37°C (98.6°F) setpoint, the brain receives the signal, and the body executes corrective actions—such as shivering and constricting blood vessels when cold, or sweating and dilating blood vessels when hot—until the temperature returns to the setpoint.
procedureThe human body regulates temperature through a negative feedback loop: (1) sensors detect when body temperature drops below 37°C (98.6°F), (2) the brain receives the signal, (3) the brain activates muscles to shiver and blood vessels to constrict to generate and conserve heat, (4) the system shuts off once the temperature returns to normal.
Physiology, Homeostasis - StatPearls - NCBI Bookshelf ncbi.nlm.nih.gov May 1, 2023 1 fact
claimNegative feedback refers to a response that is opposite to a stress, where compensatory action increases values if they become too low or decreases them if they become too high.
Homeostasis or Allostasis? - Beauty, Neuroscience & Architecture neuro-architectology.com 1 fact
claimHomeostasis functions through negative feedback, a reactive strategy where the perturbation of a regulated variable away from its optimal value is detected, eliciting corrective responses to return the variable to pre-perturbation levels.
Understanding Allostasis: Stability Through Change - Cannelevate cannelevate.com.au Jan 2, 2026 1 fact
claimHomeostasis uses negative feedback and defensive mechanisms, whereas allostasis uses feedforward control and anticipatory regulation.
ESS Subtopic 6.2: Climate change – Causes and Impacts mrgscience.com 1 fact
claimIncreased global temperatures lead to higher rates of evaporation and increased cloud formation, which reflects more sunlight back into space and potentially slows the warming process, acting as a negative feedback loop.
10.7: Homeostasis and Feedback - Biology LibreTexts bio.libretexts.org Sep 4, 2021 1 fact
claimThe regulation of testosterone (T) levels in the body involves a negative feedback loop where the hypothalamus releases gonadotropin-releasing hormone (GnRH), which triggers the pituitary gland to release luteinizing hormone (LH), which then stimulates the gonads to produce testosterone; when testosterone levels in the bloodstream are too high, the testosterone feeds back on the hypothalamus to inhibit the production of GnRH.
Homeostasis and the Autonomic Nervous System thedysautonomiaproject.org Nov 27, 2022 1 fact
procedureThe barostatic system regulates blood pressure through negative feedback: when blood pressure increases, baroreceptors in the carotid sinus are stretched, sending nerve traffic to the brainstem, which results in autonomic outflow that decreases heart rate and turns off the sympathetic nervous system to lower blood pressure.