The scientific study of sensation, sensory perception, and how the nervous system processes feeling.
From Greek 'aisthesis' (sensation) + 'logia' (study of). Developed as a formal discipline in 19th-century neuroscience and psychology.
Esthesiology is basically the science of 'feeling'—it's how researchers figured out why you can taste with your tongue, see with your eyes, and why touching a hot stove feels different than touching ice!
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