Copyright 2004 Ken Greenebaum
Weber’s Law
nΔI/I = k
nFor many phenomena the ratio
of detectable intensity I constant
nk, called the weber constant
nOnly true for ‘prothetic’
sensations
nRelating to increase in
intensity
nNot ‘metathetic’ sensations
relating to change in quality ie pitch of sound
nE. H. Weber experimented on thresholds of perception of lifted weights