Psychophysics #1

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Weber's Law

"We perceive differences on a algorithmic, not linear scale...not the amount of change but percentage of change that matters" - Hank Green

Weber's law states that the level of intensity a stimulus changes, the faster, easier it will be to detect a difference in a change.- Credit

If something is very loud, it needs to have more of a difference in a change to be noticed. - Credit

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Signal detection theory

The context - place and situations - in which a person will be able to detect a weak stimulus. - Credit

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Sensory adaptation

Your senses adjusting to a stimulus that is consistent. - Credit

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Difference threshold

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Intensity

Light wave's amount of energy. Higher amplitutde, better intensity, brighter color

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Fechner's Law

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Method of limits

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Method of adjustment

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Method of descending limits

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Method of ascending limits

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Method of constant stimuli

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Ideal observer analysis

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Fechner scale

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Magnitude estimation

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Cross-modality matching

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Sub-liminal

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Point of subjective equality

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Just-noticeable difference

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Contrast effect

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Coriolis effect (perception) / Coriolis force

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Kruithof curve

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Korte's law

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Detection theory (AKA signal detection theory)

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Interstimulus interval

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Multisensory analysis

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Rod and frame test

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Roughness (psychophysics)

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Stevens's power law

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Swept-plane display

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Stroop effect

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Two-alternative forced choice

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Range–frequency theory ???

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Absolute threshold of hearing