Erratum to: Neurogenetics. 2013 Nov;14(3–4):257–8.

DOI 10.1007/s10048-013-0370-0. Epub 2013 Aug 21.

In the title L450P should have been L450F. The same error appeared in the second and tenth sentence of the fourth paragraph. These errors appeared in the version of the paper published in 2013 Nov;14(3–4):257–8. The authors regret the errors.