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MENTAL MODEL · M8152

Noise Filter

Noise Filter
BehaviorHigh supportOrganizational Psychology
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Updated 2026-08-10

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INTRODUCTION

English translation pending.

CORE DEFINITION

The model distinguishes signal, the persistent information a decision depends on, from noise, the random fluctuation and irrelevant detail competing with it, and it applies a filter to the input. Its practical use is defensive: most attention is lost not to hard problems but to noise that feels like information, and filtering restores the judgment the noise had displaced.

SCAFFOLDING EFFECT

psychology

Reduce cognitive load

- Name the signal: state what the decision actually depends on. - Choose the filter: pick a method matched to the kind of noise present. - Check what was removed: verify no true signal was filtered away.

anchor

Anchor fast decisions

Decision quality is bounded by the ratio of signal to noise in the input, and noise is not neutral because it displaces the attention the signal requires. Filtering raises that ratio directly, and the risk runs the other way, since an aggressive filter removes weak but real signal along with the noise.

MINIMUM ACTION

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Source support: Explicit

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    en.wikipedia.orghttps://en.wikipedia.org/wiki/Noise_reductionZH · Explicit
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