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Psychophysical: sharing the physical and psychological qualities. In the 19th century, German physicist, philosopher and mystic Gustav Theodor Fechner was revolutionary in terming psychophysics. In its simplest form, it is a mathematical relationship between one's internal (psychic) and external (physical) worlds on the basis of experimental data. Multiple studies are currently being conducted in relation to Fechner's ideas.[1]

Psychophysical may refer to:

  • Psychophysics, the subdiscipline of psychology dealing with the relationship between physical stimuli and their subjective correlates, or percepts
  • Psychophysiology, the branch of psychology that is concerned with the physiological bases of psychological processes including sensory processes, and is thereby connected to psychophysics
  • Psychophysical parallelism, in philosophy, is the theory that the conscious and nervous processes vary concomitantly whether or not there be any causal connection between them

See also[edit]

  • Psychometrics, a related field of study concerned with the theory and technique of psychological measurement


  1. ^ B. Treutwein. 1995, Adaptive psychophysical procedures, Vision Res. 35 doi:10.1016/0042-6989(95)00016-X