How did Helmholtz, an early figure in psychology, determine that a sensory experiment contributed to the idea that the mind could be studied scientifically ?

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Helmholtz conducted experiments on the speed of nerve signals in the human body, demonstrating that signals from farther points in the body (like the toe) took longer to reach the brain than those from closer points (like the thigh). This empirical approach to studying sensory experiences provided evidence that the mind and its processes could be measured and studied scientifically.

How Did Helmholtz, an Early Figure in Psychology, Determine That