Outlines of Physiological Psychology a Textbook of Mental Science for Academies
The book Outlines of Physiological Psychology a Textbook of Mental Science for Academies was written by author George Trumbull Ladd Here you can read free online of Outlines of Physiological Psychology a Textbook of Mental Science for Academies book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Outlines of Physiological Psychology a Textbook of Mental Science for Academies a good or bad book?
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The attempt to formu- late the results reached by thousands of experiments, by each of the foregoing methods, has resulted in a "law" QUANTITY OF SENSATIONS. 277 known by the name of Weber, or Fechner. The former of these investigators propounded the principle of this " law " ; the latter has defended and elaborated it by a vast amount of research. Weber's law admits of state- ment in several forms : (1) The difference between any two stimuli is experienced as of equal magnitude in case the mat...hematical relation of those stimuli remains un- altered. (2) If the intensity of the sensations is to increase by equal absolute magnitudes, then the relative increase of the stimulus must remain constant. (3) The strength of the stimulus must increase in a geometrical proportion in case the strength of the sensation is to increase in an arithmetical proportion. 1 Value of Weber's Law. Familiar experience makes us aware that the difference in the amount of our sensations does not increase in direct arithmetical ratio with the increase in the intensity of the stimuli which cause the sen- sations.
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