Center for Neurologic Study-Lability Scale (CNS-LS)
for pseudobulbar affect (PBA)
The CNS-LS is a short, self-administered questionnaire, designed to be completed by the patient. It provides a quantitative measure of the perceived frequency of PBA episodes and can help physicians accurately diagnose PBA. Using the scale below, click the circle under the desciptor that describes the degree to which each item applies to you DURING THE PAST WEEK.
CNSLS maximum score = 35
A score of 13 or higher may suggest PBA