Branch of knowledge relating physical stimuli and psychological perception
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Psychophysics 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"[1] 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".[2]
Psychophysics also refers to a general class of methods that can be applied to study a perceptual system. Modern applications rely heavily on threshold measurement,[3] ideal observer analysis, and signal detection theory.[4]
Psychophysics has widespread and important practical applications. For instance, in the realm of digital signal processing, insights from psychophysics have guided the development of models and methods for lossy compression. These models help explain why humans typically perceive minimal loss of signal quality when audio and video signals are compressed using lossy techniques.
^Gescheider G (1997). Psychophysics: the fundamentals (3rd ed.). doi:10.4324/9780203774458. ISBN 978-0-8058-2281-6. S2CID 241358787.
^Bruce V, Green PR, Georgeson MA (1996). Visual perception (3rd ed.). Psychology Press.
^Boff KR; Kaufman L; Thomas JP, eds. (1986). Handbook of perception and human performance: Vol. I. Sensory processes and perception. New York: John Wiley.
^Gescheider G (1997). "Chapter 5: The Theory of Signal Detection". Psychophysics: the fundamentals (3rd ed.). Lawrence Erlbaum Associates. ISBN 978-0-8058-2281-6.
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of perception has progressed by combining a variety of techniques. Psychophysics quantitatively describes the relationships between the physical qualities...
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meaning in RSVP at 13 ms per picture" (PDF). Attention, Perception, & Psychophysics. 76 (2): 270–279. doi:10.3758/s13414-013-0605-z. hdl:1721.1/107157....
perception are studied by a variety of related fields, most notably psychophysics, neurobiology, cognitive psychology, and cognitive science. Sensory...
techniques contrast sharply with Stanislavski's multivariant, holistic and psychophysical approach, which explores character and action both from the 'inside...
writer Gotthold Ephraim Lessing, philosopher Ernst Bloch, founder of psychophysics Gustav Theodor Fechner, and founder of modern psychology, Wilhelm Wundt...
the HSV "color cone". Circle of fifths Color theory Visual perception Psychophysics Color solid Spectral color Octave Color blindness Morton, J.L. "Basic...
Belgium. He then began his research in psychophysics with Gustav Fechner in 1865. Delboeuf began his psychophysical experimentation on brightness in 1865...
direction and origin of sounds, similar to diotic which is used in psychophysics to describe an auditory stimulus presented to both ears. Binaural may...
being lit and the lighter square at an angle which receives poor light. Psychophysics Color constancy The dress Adelson, Edward H. (2005). "Checkershadow...
counting prime numbers or approximating factorials, inform some models in psychophysics, and can aid in forensic accounting. The concept of logarithm as the...
nervous systemPages displaying wikidata descriptions as a fallback Psychophysics – Branch of knowledge relating physical stimuli and psychological perception...
Niels Bohr (1885–1962), Danish physicist who made foundational contributions to understanding atomic structure and quantum theory, is the eponym of the...
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