See these previous discussions:

https://www.researchgate.net/post/For_authors_not_affiliated_with_an_institution_can_we_write_Remote_Independent_researcher_with_e-mail_address_instead_of_the_home_address/1

https://www.researchgate.net/post/How_can_someone_working_in_R_D_publish_a_scientific_paper_indipendently_from_the_company/1

https://www.researchgate.net/post/Independent_researcher_affiliation/1

Hello Bernard Delalande

Does NeuroDynamique have any physical presence? (eg such as a register address, business registration)

If it does, I would suggest to use that. Otherwise, it may be quite hard for you. Some journals will allow you to be "independent" and no have "affiliations". Many will not, unfortunately.

Thanks Joseph C Lee

NeuroDynamique is only a website for the moment but this may be modified in the future with a physical address, etc.

I'll look into it.