Dissociation “automatico-voluntaire” is a symptom observed in aphasic patients. We elucidated the difference between voluntary and involuntary speech output in a quantitative manner using the same task materials in nine patients with Wernicke’s aphasia. All the patients exhibited better ability and less paraphasias in a repetition task elicited in a disguised condition than in an ordinary repetition condition. This result indicates that the output difficulty in Wernicke’s aphasia might be a disability of volitional control over the language system.
- automatico-voluntaire dissociation
- involuntary speech
- voluntary speech
- Wernicke’s aphasia
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Competing interests: none declared