Toward a Foundation of Psychophysics

Georg Elias Müller was a German psychologist who significantly advanced the study of sensations, memory, learning, and color vision. In his 1878 work, Toward a Foundation of Psychophysics, Müller explored the relationship between physical stimuli and sensory experiences, focusing on Weber's law. This law describes how the change in a stimulus needed to produce a noticeable change in sensation is proportional to the original stimulus magnitude. Müller's research also highlighted how individual variations in sensitivity affect perceptual thresholds and introduced the idea that anticipation influences discrimination. He further distinguished active processes, like conscious organization, in learning, suggesting that learning is not purely mechanical.123