Is noticing a sound the same as noticing it get louder?
Hearing a faint sound at all and detecting a small increase in a sound are different tasks. Absolute and difference thresholds describe those questions under specified conditions, with results that depend on the person and setting.
Questions you could explore
- Why might the same added stimulus stand out against one background but disappear against another?
Start reading
- OpenStax, Rice UniversityPsychology 2e, 5.1: Sensation versus Perception
OpenStax introduces absolute thresholds and just-noticeable differences; the examples are explanations rather than diagnostic tests.
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