negative feedback

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negative feedback

[′neg·əd·iv ′fēd‚bak]
(control systems)
Feedback in which a portion of the output of a circuit, device, or machine is fed back 180° out of phase with the input signal, resulting in a decrease of amplification so as to stabilize the amplification with respect to time or frequency, and a reduction in distortion and noise. Also known as inverse feedback; reverse feedback; stabilized feedback.
(science and technology)
Feedback which tends to reduce the output in a system.

negative feedback

see SYSTEMS THEORY.
References in periodicals archive ?
In this model, explanations employ both positive and negative feedback loops and autocatalysis (the speeding up of a reaction by a catalyst that is a product of the reaction).
Negative feedback loops with MDM2 and ATM can explain p53's oscillation behavior after DNA damage, Galit Lahav of the systems biology department at Harvard Medical School in Boston and his colleagues reported in the May 9 issue of Molecular Cell.
The second negative feedback loop, collective bargaining agreements beyond pay issues, is utilized by health and safety representatives to resolve long-standing health and safety issues.
A negative feedback loop is goalseeking, tending to regulate the system towards some objective.
The home financing industry is now caught in a serious 'demand trap,' a negative feedback loop of economic and behavioral deflation.
The danger we re creating is the danger of policymaking that is increasing uncertainty and making markets more nervous, which has a negative feedback loop," he said at a business meeting on the sidelines of the G20 summit.
The danger we're creating is the danger of policymaking that is increasing uncertainty and making markets more nervous, which has a negative feedback loop," he said on Sunday at a business meeting on the sidelines of the G20 summit.
However, too many serotonin receptors of the 1A type on the raphe neurons sets up a negative feedback loop that reduces the production of serotonin, the researchers discovered.
Moreover, concerns for the negative feedback loop between the real economy and the financial sector also linger.
However, he identifies the negative feedback loop, which in turn controls the input, as the basic element of any control process.
Since CDS spreads are often used as credit risk indicators, spread volatility could create a negative feedback loop for some issuers, particularly during stress conditions.
The rally may finally be starting to wane as traders wake up to rising unemployment and the negative feedback loop this will create on safer bank loans and economic recovery.