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Effects of feedback

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Feedback in control systems plays a critical role in shaping various operational parameters, extending beyond simple error reduction to influence stability, bandwidth, gain, impedance, and sensitivity. Understanding these effects requires examining a basic feedback system characterized by defined input, output, error, and feedback signals.
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Related Experiment Video

Updated: Mar 3, 2026

Control of Eating Behavior Using a Novel Feedback System

Control of Eating Behavior Using a Novel Feedback System

Published on: May 8, 2018

Feedback and efficient behavior.

Sandro Casal¹, Nives DellaValle², Luigi Mittone³

¹Department of Economics, Management, and Quantitative Methods, University of Milan, Milan, Italy.

|April 22, 2017

Summary

Feedback effectively promotes efficient behavior by increasing awareness of choice consequences. Loss-framed feedback is most effective, while information on inefficient peers reduces efficiency.

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Area of Science:

Behavioral Economics
Decision Science
Cognitive Psychology

Background:

Feedback is crucial for improving decision-making and promoting efficient behavior.
Understanding the specific mechanisms through which feedback operates is essential for its effective application.
Complex environments often obscure the consequences of choices, hindering efficient behavior.

Purpose of the Study:

To isolate and analyze the mechanisms by which feedback influences efficient behavior.
To investigate how different feedback interventions impact individuals' awareness of choice consequences and their search for efficient alternatives.
To quantify the efficacy of various feedback strategies in a controlled laboratory setting.

Main Methods:

A laboratory experiment was designed to study feedback effects in a setting where participants were initially unaware of choice consequences.
Three types of feedback interventions were assessed: social information, feedback frequency manipulation, and feedback framing.
Participant behavior and efficiency were measured under different feedback conditions.

Main Results:

Feedback significantly enhances awareness of choice consequences and stimulates the search for efficient alternatives.
Feedback framed in terms of losses proved most effective in promoting efficiency.
Inclusion of information about inefficient peers' behavior was found to reduce efficiency.
Lowering the frequency of feedback did not negatively impact efficiency.

Conclusions:

Feedback is a powerful tool for promoting efficient behavior, particularly when framed to highlight losses.
The design of feedback interventions, including the type of information and its presentation, critically influences their effectiveness.
These findings offer valuable insights for policymakers seeking to design interventions that encourage efficient choices.