Stevens' Law

Stevens' Law describes how we perceive the intensity of a stimulus relative to its actual physical magnitude. It states that our perception doesn't increase linearly but follows a specific mathematical relationship: perceived intensity is proportional to the physical intensity raised to a power. For example, doubling the actual brightness might more than double how bright it seems, depending on the exponent. This law helps explain why our senses respond differently to various stimuli, such as light, sound, or weight, and is used in fields like psychology and engineering to better understand sensory experiences.