Robbiani dermal-optic test
The Robbiani dermal-optic test was a medical diagnostic test that revealed a subject's basic emotional structure by analyzing skin and pupil response to visual stimulation at specific color wavelengths. Captain James T. Kirk was given a Robbiani dermal-optic test upon taking command of the . 

In 2269, Doctor Leonard McCoy subjected Kirk to the test to compare with his previous results, as part of a physical to determine the cause of Kirk's erratic emotional state. ()
Medical procedures