Feedback mechanism

(noun)

the action or means used to subsequently modify the gap in a feedback loop

Related Terms

Examples of Feedback mechanism in the following topics:

  • Homeostatic Control

    • Positive feedback is a mechanism in which an output is enhanced in order to maintain homeostasis.
    • Positive feedback mechanisms are designed to push levels out of normal ranges.
    • Negative feedback mechanisms reduce output or activity to return an organ or system to its normal range of functioning.
    • Temperature control is another negative feedback mechanism.
    • Both internal and external events can induce negative feedback mechanisms.

  • Disease as Homeostatic Imbalance

    • Anything that prevents positive or negative feedback from working correctly could lead to disease if the mechanisms of disruption become strong enough.
    • As an organism ages, weakening of feedback loops gradually results in an unstable internal environment.
    • Heart failure is the result of negative feedback mechanisms that become overwhelmed, allowing destructive positive feedback mechanisms to compensate for the failed feedback mechanisms.
    • In ideal circumstances, homeostatic control mechanisms should prevent this imbalance from occurring.
    • Negative feedback between insulin and glucagon levels controls blood sugar homeostasis.

  • Closing the Feedback Loop

    • If done early, this feedback loop ensures that a correct decision is ultimately made.
    • feedback' exists between two parts when each affects the other..."
    • Feedback signal: The measurement of the actual level of the parameter of interest.
    • Feedback mechanism: The action or means used to subsequently modify the gap.
    • Explain the role of the feedback loop in decision making and the different types of feedback associated with it

  • Control of Hormone Secretion

    • The endocrine system relies on feedback systems to regulate hormone production and secretion.
    • Most endocrine glands are under negative feedback control which acts to maintain homoeostasis, i.e. prevent deviation from an ideal value.
    • Positive feedback mechanisms control self-perpetuating events, i.e. they encourage deviation from the mean.
    • Positive feedback systems are much less common although they do exist.
    • An example of positive feedback can be found in childbirth.

  • Delivering Constructive Feedback

    • Constructive feedback, both positive and negative, can help individuals learn and improve their performance.
    • Knowing how to deliver constructive feedback is an important skill for a manager and leader.
    • Feedback is given in organizations in a variety of ways.
    • Others feedback mechanisms are more formal and part of a process created for the explicit purpose of delivering performance assessments.
    • In human resources, 360-degree feedback, also known as multi-rater feedback, multi-source feedback, or multi-source assessment, is feedback that comes from members of an employee's immediate work circle.

  • Control of Homeostasis

    • Homeostasis is typically achieved via negative feedback loops, but can be affected by positive feedback loops, set point alterations, and acclimatization.
    • Homeostasis is maintained by negative feedback loops within the organism.
    • Negative feedback loops are the predominant mechanism used in homeostasis.
    • The birth of a human infant is the result of positive feedback.
    • Discuss the ways in which the body maintains homeostasis and provide examples of each mechanism

  • The Facial Feedback Hypothesis

    • The facial feedback hypothesis asserts that facial expressions are capable of influencing our emotions.
    • The facial feedback hypothesis asserts facial expressions are not only the results of our emotions but are also capable of influencing our emotions.
    • Recently, the use of Botox to temporarily paralyze facial muscles has also provided strong experimental support for some kind of facial-feedback mechanism involved in emotion.
    • Findings from this and other studies suggest that facial feedback modulates the neural processing of emotional content.
    • This outcome supported   the facial feedback hypothesis.

  • Lasers

    • A laser consists of a gain medium, a mechanism to supply energy to it, and something to provide optical feedback.
    • Having examined stimulated emission and optical amplification process in the "Lasers, Applications of Quantum Mechanics" section, this atom looks at how lasers are built.
    • A laser consists of a gain medium, a mechanism to supply energy to it, and something to provide optical feedback (usually an optical cavity).
    • The most common type of laser uses feedback from an optical cavity--a pair of highly reflective mirrors on either end of the gain medium.

  • Regulatory Mechanisms for Cellular Respiration

    • Cellular respiration can be controlled at each stage of glucose metabolism through various regulatory mechanisms.
    • Various mechanisms are used to control cellular respiration.
    • The attachment of a molecule to the allosteric site serves to send a signal to the enzyme, providing feedback.
    • This feedback type of control is effective as long as the chemical affecting it is bound to the enzyme.

  • Goal-Setting Theory

    • Goals are therefore an important tool for managers, because goals have the ability to function as a self-regulatory mechanism that gives an employee a certain amount of guidance.
    • Without proper feedback channels, employees find it impossible to adapt or adjust their behavior.
    • Goal-setting and feedback go hand-in-hand.
    • Without feedback, goal-setting is unlikely to work.
    • When giving feedback, managers should: