ABSTRACT
Stuttering may affect general purpose cognitive mechanisms, not only the ones specifically responsible for processing language and converting language output to speech motor patterns. Results with one well-studied cognitive paradigm, which can be used to examine how nonspeech factors affect language performance in adults who stutter, is described in section 6.2. This is the concurrent or dual-task paradigm where a task, such as speaking, is performed along with a secondary task. Performance in dual-tasks is often linked with cerebellar processes. Some evidence about the role of this structure in dual tasks and a possible link with timing control are given in section 6.3. This section also includes some hypotheses that relate the results to known features of developmental stuttering and the persistent form in particular.
