Footnotes

• Contributors SL: project design, data analysis, interpretation of data, drafting the work. KF: acquisition of data (experimental battery). MP: acquisition of data (background neuropsychological battery). VC: acquisition of data, handling data, literature revision. MS: interpretation of data, final revision of the work. LP: interpretation of data, final revision of the work. All authors approved the final version to be published. All authors agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.

• Competing interests None.

• Patient consent Obtained.

• Ethics approval Institutional review board.

• Provenance and peer review Not commissioned; externally peer reviewed.