alleryStart learning →Identifying a stimulus embedded in a distracting background is explained by:
ATransduction theory
BSignal detection theory
CSensory adaptation theory
DAbsolute threshold theory
Answer & Solution
Correct answer: B. Signal detection theory
1. Detection in the real world happens against noise rather than silence.
2. The ability to identify a stimulus when it is embedded in a distracting background is called signal detection theory.
3. It explains why a parent wakes at a baby's cry but sleeps through traffic.
4. Absolute threshold assumes a quiet background instead.
_Source: OpenStax Psychology 2e (CC BY 4.0), Ch 5 'Sensation and Perception', sections 5.1-5.6_
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