PSYB51H3 Chapter Notes - Chapter 1: Radiography, Hemoglobin, Thalamus
Document Summary
German scientist/philosopher, considered to be the true founder of experimental psychology (but that title is given to wilhelm wundt) Weber fraction - the constant of proportionality in weber"s law. Weber"s law - the principle describing the relationship between the stimulus and resulting sensation that says the jnd is a constant fraction of the comparison stimulus. They tend to experience more intense oral burn and oral touch sensations signal detection theory. A psychophysical theory that quanti es the response of an observer to the presensation of a signal in the presence of noise. Measures obtained from a series of presentations are sensitivity (d") and criterion of the observer criterion - an internal threshold that is set by the observer. If the internal response is above criterion, the observer gives one response (ex: yes, i hear that). In studies of signal detection, the graphical plot of the hit rate as a function of the false-alarm rate.
