Explain Steven’s Power Law.
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Steven's Power Law: Quantifying Sensory Perception
Steven's Power Law, formulated by psychologist S. S. Stevens, describes the nonlinear relationship between stimulus intensity and perceived sensation. It asserts that the perceived intensity of a stimulus is proportional to its physical magnitude raised to a certain exponent. In simpler terms, our subjective experience of sensation does not increase linearly with the actual stimulus intensity. This law is particularly relevant in understanding how humans perceive various sensory stimuli, such as brightness, loudness, or taste, providing a mathematical framework to capture the complexities of sensory perception across different modalities.