Ernst Weber

Ernst Weber was a German physician and psychologist known for his foundational work in sensory psychology. He studied how people perceive differences in stimuli, such as weight, sound, or brightness. Weber discovered that the smallest noticeable difference between two stimuli (called the "just noticeable difference") is proportional to the original intensity of the stimulus. This idea, known as Weber's Law, helps explain how our senses detect changes and has influenced fields like psychology, neuroscience, and marketing. Essentially, Weber's work provides a scientific basis for understanding how sensitive our perception systems are to variations in our sensory experiences.