Psychophysics

Psychophysics is the field of psychology which quantitatively investigates the relationship between physical stimuli and the sensations and perceptions they produce. Psychophysics has been described as "the scientific study of the relation between stimulus and sensation" or, more completely, as "the analysis of perceptual processes by studying the effect on a subject's experience or behaviour of systematically varying the properties of a stimulus along one or more physical dimensions".

psychophysics law that the minimum perceptible increase of stimulus is proportional to the stimulus and that intensity of our sensation increases logarithmically

effect of psychological interference on reaction time

analyzed the detection of difficult to detect signals and provides a measure of the quality of the detection

consumer product-testing method

study of influence of color on human behaviour

term in neuroscience and psychophysics

empirical relationship in psychophysics between actual and perceived changed intensity of stimulus

perceptual effect of contrasting stimuli

amount that a stimulus must be changed to be detected

lowest perceivable odor concentration

weakest stimulus that an organism can detect

scientific study of colors