psychophysics
The Weber -Fechner Principle: An Approximate psychological law relating the degree of response or sensation of a sense organ and the intensity of the stimulus. The law asserts that equal increments of sensation are associated with equal increments of the logarithm of the stimulus, or that the just noticeable difference in any sensation results from a change in the stimulus, which bears a constant ratio to the value of the stimulus.Weber was the first German anatomist and physiologist to introduce the concept of the just-noticeable difference, which is the smallest observable difference between two similar stimuli. From 1818 until 1871 Weber was a professor at the University of Leipzig. Weber is best known for his work on the sensory response to weight, temperature, and pressure. Weber stated that, in order for any increase in the intensity of the stimulus a threshold of sensation must be passed. This increase would create the just-noticeable difference. The ratio Weber discovered was the total intensity of sensation, rather than an absolute figure. Greater weight had to be added to heavier objects in order for the person to notice the change. Weber's observations were f
The philosophical message of the Elemente was widely ignored while; its orderly and practical contributions were not. Fechner was a well trained, rational experimentalist and a skillful mathematician and the influence of his work on scientists was accurate. Terms of physical events could be linked to the measures of mental events. Fechner showed the potential for quantitative, experimental exploration of the phenomenology of sensory experience and established psychophysics as emerging scientific psychology. ¨ The Fechner Weber Principle @1997 Denis Leri Fechner was a German physicist and philosopher; he was an influential figure in the development of psychophysics. He was concerned with the quantitative relations between sensations and the stimuli producing them. When Fechner was 16, he began medical school at the University of Leipzig where he studied anatomy under Weber. Fechner upon graduation discovered his interested lead more toward physics and mathematics than medicine. I found my information by looking up psychophysics on the Internet and I found the article by Denis Leri to be the most interesting. The italicized words are her exact words are close to them. Fechner by the end of the 1830's had written several
Some common words found in the essay are:
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Approximate Word count = 834
Approximate Pages = 3 (250 words per page double spaced)
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