To validate the 2 questionnaires ZARIT-12 and CBI it is important to go through several stages:

1. translation stage : during this stage there will be a meeting of experts to Validate the test version in French by 4 Bilingual translators of the French and English mother tongue.

2. pilot stage : recruit a number of 30 neurological patients' caregivers, in order to validate the comprehension, thus obtaining the final version of the questionnaire.

3. Validation stage : the two questionnaires have been validated, in this stage there should be a recruitment of 264 participants for the CBI questionnaire and 120 participants for the ZARIT-12 questionnaire, and these 2 questionnaires will be deliver to the participant on the same day.

   • The first questionnary will have to be filled the day they get the questionnary (day 1).
   • The second one must be completed and sent fourteen days later (day 14).

To validate the 2 questionnaires ZARIT-12 and CBI it is important to go through several stages:

1. translation stage : during this stage there will be a meeting of experts to Validate the test version in French by 4 Bilingual translators of the French and English mother tongue.
2. pilot stage : recruit a number of 30 neurological patients' caregivers, in order to validate the comprehension, thus obtaining the final version of the questionnaire.
3. Validation stage : the two questionnaires have been validated, in this stage there should be a recruitment of 264 participants for the CBI questionnaire and 120 participants for the ZARIT-12 questionnaire, and these 2 questionnaires will be deliver to the participant on day 1. The first questionnary will have to be filled on day 1 and the second one must be completed and sent fourteen days later (so on day 14)

Inclusion Criteria:

• Caregivers (family or friend) of patients followed for a central neurological pathology (MS, BM, Parkinson's, stroke, congenital (Spina...)) or peripheral (ponytail, peripheral neuropathies)
• Adult caregivers (age ≥ 18 years), regardless of the patient's age
• Francophone caregivers (ability to read, write and understand French)
• Caregivers who did not object to the use of their data or the patient's data for research

Exclusion Criteria:

• - Professional caregivers
• caregivers of patients being cared for with a pathology other than neurological
• Minor caregivers (age ≤ 17 years)
• Caregivers with no or poor French language skills
• Caregivers who refused to participate in the research

Patients consulted in the hospital wards included in the research and suffering from neurological pathology with the inclusion of caregivers of patients who have had a consultation.