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laterality theory

Refers to the theory that a shift in handedness or confused cerebral dominance is a factor in the cause or in the maintenance of stuttering. According to this theory, the use of the non-preferred hand in written and other skilled activities contributes to a cerebral instability affecting speech control in such a way as to generate stuttering. Laterality theory refers to insufficiently established dominance of one cerebral hemisphere over another.

Definition reprinted with permission from Hood, Stephen B. (editor) available from Stuttering Foundation of America: Stuttering Words (Publication No 2: Speech Foundation of America)

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