Tail Flick Test
The Tail flick test is used to measure the nociceptive
threshold and variation to infrared heat stimulus on the rat or mouse tail.
Basically,
a thermal stimulus is applied on the tail of the rodent; when the animal feels discomfort,
it reacts by a sudden tail movement.
The tail flick reaction time is then measured
and used as an index of animal pain sensitivity. Science adopts the IR technology
in the thermal stimulus.