Longitudinal changes in qualitative aspects of semantic fluency in presymptomatic and prodromal genetic frontotemporal dementia.

"Declarations Conflicts of interestThe authors have no competing interests to declare that are relevant to the content of this article. Ethical approvalThe investigators and participants were blinded for the genetic status of the at-risk participants, except for those that underwent predictive testing (27.8%). All participants provided written informed consent. The Erasmus MC ethics committee gave approval for the study (MEC 2009-409). This study was conducted in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. Conflicts of interest The authors have no competing interests to declare that are relevant to the content of this article."

"Funding The FTD-RisC study is supported by Dioraphte Foundation Grant 09-02-00, the Association for frontotemporal Dementias Research Grant 2009, The Netherlands organization for Scientific Research (NWO) grant HCMI 056-13-018, ZonMw Memorabel project numbers 733050103 & 733050813, the Bluefield project, JPND PreFrontAls consortium project number 733051042, and ZonMw Onderzoeksprogramma Dementie (project number 10510032120002)."