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Absolute pitch exhibits phenotypic and genetic overlap with synesthesia

MPG-Autoren
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Fisher,  Simon E.
Language and Genetics Department, MPI for Psycholinguistics, Max Planck Society;
Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen;

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Gregersen_Hum_Mol_Gen_2013.pdf
(Verlagsversion), 194KB

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Supplementary Figure 1.pdf
(Ergänzendes Material), 195KB

Supplementary Figure 2.pdf
(Ergänzendes Material), 279KB

Supplementary Table 1.pdf
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Zitation

Gregersen, P. K., Kowalsky, E., Lee, A., Baron-Cohen, S., Fisher, S. E., Asher, J. E., et al. (2013). Absolute pitch exhibits phenotypic and genetic overlap with synesthesia. Human Molecular Genetics, 22, 2097-2104. doi:10.1093/hmg/ddt059.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-000E-AF10-A
Zusammenfassung
Absolute pitch and synesthesia are two uncommon cognitive traits that reflect increased neuronal connectivity and have been anecdotally reported to occur together in a same individual. Here we systematically evaluate the occurrence of syesthesia in a population of 768 subjects with documented absolute pitch. Out of these 768 subjects, 151(20.1%) reported synesthesia, most commonly with color. These self-reports of synesthesia were validated in a subset of 21 study subjects using an established methodology. We further carried out combined linkage analysis of 53 multiplex families with absolute pitch and 36 multiplex families with synesthesia. We observed a peak NPL LOD=4.68 on chromosome 6q, as well as evidence of linkage on chromosome 2 using a dominant model. These data establish the close phenotypic and genetic relationship between absolute pitch and synesthesia. The chromosome 6 linkage region contains 73 genes; several leading candidate genes involved in neurodevelopment were investigated by exon resequencing. However, further studies will be required to definitively establish the identity of the causative gene(s) in the region.