specific nerve energy

The concept of "specific nerve energy" suggests that each sensory nerve is inherently specialized to transmit a particular type of sensation, regardless of the stimulus it receives. This idea is rooted in the understanding that the nervous system converts stimulus energy into nerve impulses. Physiologists like Georg E. Müller proposed that the electrical signals traveling along nerves are coded messages, implying that the nature of the sensation is determined by the nerve itself, rather than the stimulus. For example, light is the adequate stimulus for vision, but intense pressure can also trigger a visual sensation (phosphene). This principle highlights the brain's role in interpreting these signals to produce specific sensory experiences.123