psychophysics


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Related to psychophysics: Weber's law, Psychophysical methods

psychophysics

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

psy·cho·phys·ics

(sī'kō-fiz'iks),
The science of the relation between the physical attributes of a stimulus and the measured, quantitative attributes of the mental perception of that stimulus (for example, the relationship between changes in decibel level and the corresponding changes in the human's perception of the sound).

psychophysics

(sī′kō-fĭz′ĭks)
n. (used with a sing. verb)
The branch of psychology that deals with the relationships between physical stimuli and sensory response.

psy′cho·phys′i·cal adj.
psy′cho·phys′i·cal·ly adv.
psy′cho·phys′i·cist (-fĭz′ĭ-sĭst) n.

psy·cho·phys·ics

(sī'kō-fiz'iks)
The science of the relation between the physical attributes of a stimulus and the measured, quantitative attributes of the mental perception of that stimulus.

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.

psy·cho·phys·ics

(sī'kō-fiz'iks)
Science of relation between physical attributes of a stimulus and measured quantitative attributes of mental perception of that stimulus.
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The research in this paper is to propose a new method to determine an optimal QoE threshold to ensure the perceived video quality stays at high and stable level with the minimal network resource utilization by taking into account the combination of psychophysiology and psychophysics in QoE assessment.
For good reason, then, Cassirer selects the thermometer to stand in for a larger critique of psychophysics. A glass tube with etched markings in which the volume of mercury (or alcohol, or water, in the long history of thermometer production and calibration [Chang, 2004]) expands to indicate rising temperature and contracts as temperature falls--what does the process of expansion and contraction in this tube necessarily have to do with other phenomena of heat and their measurability?
Kerzel, "Effects of relevant and irrelevant color singletons on inhibition of return and attentional capture," Attention, Perception, & Psychophysics, vol.
The equations derived from psychophysics have a stimulus-centric view regarding changes in human perception, or they postulate that the perception changes relative to stimulus changes.
Leutner, "Temporal discrimination as a function of marker duration," Perception and Psychophysics, vol.
Boyce's book is probably the very best blend of vision science, psychophysics, and application.
Authors also discuss a new paradigm of the psychophysics of consciousness, the practical implications of their research, and directions for further research.
Clinical trails concentrate on cataract, glaucoma, corneal transplantation, pterygium and retinal surgery trails, pharmaceutical and ocular drug delivery trails, visual psychophysics studies and refractive surgery and myopia clinical trails.
The kind of desultory skimming usually condemned as a hallmark of semi-literacy (or of the unscrupulous practices of indolent reviewers), meanwhile, was reconfigured in the novels of George Meredith, who was drawing implicitly on the notion of measurable units of consciousness developed in the discipline of 'psychophysics', as a more democratic version of the high cultural emphasis on aphorisms, epigrams, and other discontinuous parts of larger works.
The growing field of memory psychophysics (Algom, 1992) provides abundant evidence that magnitude-response associations can be committed to memory and maintained over extended periods.
No previous study in the psychophysics of size has controlled this property of the stimulus objects, and hence it is likely that the pattern of variability in each of the three dimensions was the major determinant of the size of the Stevens's exponent in previous studies.

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