Extinction (Double simultaneous
1. Tactile (sensory)
- with eyes open demonstrate to the patient that you
will touch them on the left side, the right side or
- this should only be done if the patient can perceive
a unilateral stimulus (i.e. if there is loss of pain
and temperature or light touch on one side, there
would be no point assessing extinction).
- have the patient close their eyes and as you deliver
a gentle touch, report whether they feel it on the
left side, right side or both sides.
2. Visual extinction
- wiggle a finger in the left, right or both visual
fields and ask the patient to report where they see
3. Auditory extinction
- snap your fingers on the left, right or both sides
and have the patient report where they hear the stimulus.
- when testing for extinction, it is important to
deliver bilateral stimuli simultaneously with no time
lag in between.