Comment on

• Beyond disgust: impaired recognition of negative emotions prior to diagnosis in Huntington's disease.

  Johnson SA, Stout JC, Solomon AC, Langbehn DR, Aylward EH, Cruce CB, Ross CA, Nance M, Kayson E, Julian-Baros E, Hayden MR, Kieburtz K, Guttman M, Oakes D, Shoulson I, Beglinger L, Duff K, Penziner E, Paulsen JS; Predict-HD Investigators of the Huntington Study Group. Johnson SA, et al. Brain. 2007 Jul;130(Pt 7):1732-44. doi: 10.1093/brain/awm107. Brain. 2007. PMID: 17584778