Kleberg, Johan Lundin
Hallman, Astrid E. Z.
Astenvald, Rebecka
Nordgren, Ann
Falck-Ytter, Terje
van den Berg, Ronald
Funding for this research was provided by:
Stockholm University
Article History
Received: 12 February 2025
Accepted: 8 November 2025
First Online: 8 December 2025
Declarations
:
: The authors declare no conflicts of interest.
: Participants with Fragile X syndrome were assessed in the context of a larger study which was approved by the Regional Ethics Committee of Stockholm, Sweden (dnr 2018/1218–31 with subsequent amendments). No ethical approval was required, for example, analysis two.
: Participants with Fragile X syndrome and their legal guardians or legal representatives gave informed consent to participate. Legal guardians/representatives gave written informed consent. Participants gave verbal and/or written consent depending on their verbal ability.
: The paintings by Paul Klee in Fig. 10 are in the public domain.
: No analyses were pre-registered.