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psychophysics
(redirected from Psychophysical methods)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
psychophysics /psy·cho·phys·ics/ (-fiz´iks) scientific study of quantitative relations between characteristics or patterns of physical stimuli and the sensations induced by them.
psy·cho·phys·ics (sk-fzks)
n.
The branch of psychology that deals with the relationships between physical stimuli and sensory response.

psychophysics
[-fiz′iks]
Etymology: Gk, psyche + physikos, natural
the branch of psychology concerned with the relationships between physical stimuli and sensory responses.

psychophysics [si″ko-fiz´iks]
scientific study of the quantitative relations between characteristics or patterns of physical stimuli and the sensations induced by them.

psychophysics 
Branch of science that deals with the relationship between the physical stimuli and the sensory response. The measurements of thresholds (e.g. visual acuity, dark adaptation) or matching of stimuli (as in the spectral luminous efficiency curve) are examples of psychophysics. See experimental optometry.


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Recently, other psychophysical methods, including the method of constant stimuli and two alternative forced-choice methods, have been used in perceptual scaling experiments (Ariely, 2001; Chong & Treisman, 2003).
RET consciously and actively employs all three kinds of therapy; and, following "and/also" and "et cetera" facilitations, it has no hesitation in combining psychotherapy with pharmacological treatment, with environmental changes, and with any other kinds of psychophysical methods that are likely to help various clients (Ellis, 1985, 1988, 1989; Ellis & Abrahms, 1978; Ellis & Dryden, 1987, 1991; Ellis & Velten, 1992).
Given the results of this study, which show that aggravating factors and neuropathic pain qualities are significantly higher for MD pains, assessment of evoked pain in the SCI chronic pain population, using both verbal reports and quantitative psychophysical methods, is essential.
 
 
 
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