Glossary
Searchable terminology from accessibility, web standards, and related fields.
3 results found in Psychophysics.
- Psychophysics
- Psychophysics is the scientific study of the quantitative relationship between physical stimuli and the sensations and perceptions they produce. Founded in the 19th century, it uses rigorous experimen…
- Visual Crowding (Crowding)
- A perceptual phenomenon in which the presence of nearby flanking characters or objects makes it harder to recognise a target character, especially in peripheral vision or when the target is small, low…
- Weber's Law (Weber Ratio, Weber's Ratio, Weber-Fechner Law)
- Weber's Law is a foundational principle of psychophysics stating that the smallest detectable change in a stimulus — the just-noticeable difference — is a roughly constant fraction of the stimulus mag…