The “sense” is determined by the nature of the stimulus, rather than the neurons that are stimulated.

Question

BlackTom AI · Accepted Answer

Müller’s law of specific nerve energies states that the quality of a sensation is determined by the particular sensory nerve fibers and central pathways that are activated, not solely by the physical nature of the stimulus. Key concepts: labeled-line coding (each sensory pathway conveys a specific modality), adequate stimulus (the type of energy a receptor is most responsive to), and sensory transduction (conversion of stimulus energy to neural signals).

Step-by-step reasoning:
1. Define “sense” as sensory modality (vision, hearing, touch, taste, smell).
2. Recognize two competing claims: A) sense determined by stimulus type, B) sense determined by which neurons/pathways are activated.
3. Apply Müller’s doctrine and experimental evidence: electrical stimulation of the retina or optic nerve produces visual sensations (phosphenes), even though the stimulus is electrical rather than light. Electrical stimulation of somatosensory cortex produces tactile sensations, not visual ones. This shows modality follows the nerve pathway.
4. Consider adequate stimulus: receptors have preferred stimuli (photoreceptors for photons, hair cells for fluid motion), but if you directly activate the neural pathway downstream (e.g., cortical or nerve stimulation), the perceived modality corresponds to that pathway.
5. Therefore the neuron/pathway identity, not the physical stimulus per se, determines the modality of the sensation.

Why the correct answer is False:
- The statement reverses well-established neurophysiology. The nature of the stimulus influences receptor activation, but the perceived “sense” depends on which labeled line carries the signal to the brain.

Why “True” is incorrect:
- It ignores labeled-line evidence and stimulation studies showing modality is tied to neural pathways, not stimulus form.

Conclusion: The correct answer is False, matching the provided answer.

The “sense” is determined by the nature of the stimulus, rather than the neurons that are stimulated.判断题

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