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International Parkinson and Movement Disorder Society
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Cortical Basal ganglia Functional Scale (CBFS)

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Cortical Basal ganglia Functional Scale (CBFS)

Acronym: CBFS

Authors: Anthony Lang, Glenn T. Stebbins, Adam Boxer

The CBFS is a novel rating scale that evaluates experiences in daily living (“EDL”), behavioral, language, and cognitive impairments in patients with 4 repeat tauopathies (4RTs). The CBFS consists of 14 questions on Motor EDL’s and 17 questions on Non-Motor EDL’s, each of which are rated on a Likert 5 point scale rating function from 0 to 4, where 0 = Normal or No problems and 4 = Severe problems. The questions are for the patient, but should be answered by both the patient and their caregiver together.

Original PublicationView the Scale (PDF)

To request permission to use this Rating Scale, please fill out a Permission Request Form.

Year Published: 2020

Scale Last Updated: May 24, 2021

Assessment Type: Patient-Reported Outcome (PRO) and Caregiver Reported Outcome

Estimated Time to Administer the Scale: 25 minutes

Available Translations: None

Additional Scale Publications: None

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