Greiner J R, Fitzgerald H E, Cooke P A
Neuropsychologia. 1986;24(3):441-7. doi: 10.1016/0028-3932(86)90032-1.
Right-handed stutterers performed more poorly with their nondominant hand when writing digits and letters bimanually, and also made more nondominant hand mirror reversals than did nonstutterers. Left-handed stutterers and nonstutterers differed only in the incidence of mirror reversals with the nondominant hand. The results support the hypothesis that disorganization in the integration of left- and right-hemisphere inhibitory and excitatory processes may be an integral component of stuttering.
右利手口吃者在双手同时书写数字和字母时，其非优势手的表现更差，并且与非口吃者相比，非优势手出现镜像反转的情况也更多。左利手口吃者和非口吃者仅在非优势手的镜像反转发生率上存在差异。这些结果支持了这样一种假设，即左右半球抑制和兴奋过程整合中的紊乱可能是口吃的一个重要组成部分。
