12 Aug 2019

Major breakthrough in centuries-old puzzle

A new psychophysical law discovered by the Circuit Dynamics & Computation group proved to be crucial for the solution of a 200-years-old puzzle

Major breakthrough in centuries-old puzzle

Weber’s law is the most firmly established rule of psychophysics — the science that relates the strength of physical stimuli to the sensations of the mind. Despite being almost 200 years old, no clear way has been found to select among its many proposed explanations. Now, the Circuit Dynamics & Computation lab has discovered a new psychophysical rule that allowed them to identify a unique and robust explanation of Weber’s law.

Major breakthrough in 200-year-old puzzle
Time holds the key to the explanation of Weber’s law (Illustration: Diogo Matias)

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