The Role of Reflexes in the Nervous System

The caloric reflex test is a way to check whether different nerves are working. It was discovered when an Austrian neurologist named Robert Barine was treating some ear infections. He noticed that flushing out a patient's ear with cold or icy water, like around 30 degrees Celsius, 86 degrees Fahrenheit or below, would cause their eyes to involuntarily wiggle towards the ear.

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