perceptimet
Perceptimet is a theoretical metric used in cognitive psychology and neuroscience to quantify the distance between perceptual representations of stimuli. It is intended to function like a physical distance unit, but its scale is defined by perceptual judgments rather than by spatial coordinates. The term derives from percept (perception) and metric, and it is not a universally standardized unit; different studies may define and calibrate it in distinct ways.
Definition and properties. In the perceptimet framework, 0 typically denotes identical or indistinguishable stimuli, while positive
Measurement and methods. Perceptimet is usually inferred from tasks that reveal perceptual structure, such as similarity
Applications and limitations. The concept is used to understand color, sound, touch, and multimodal perception, and
See also: perceptual distance, psychometric scaling, multidimensional scaling, Just Noticeable Difference.