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How to improve repetition ability in patients with Wernicke’s aphasia: the effect of a disguised task
  1. M Otsuki1,
  2. Y Soma2,
  3. N Yoshimura3,
  4. K Miyashita4,
  5. K Nagatsuka4,
  6. H Naritomi4
  1. 1School of Psychological Science, Health Sciences University of Hokkaido, Sapporo, Japan
  2. 2Soma Neurology Clinic, Niigata, Japan
  3. 3Department of Neurology, Takeda General Hospital, Aizuwakamatsu, Japan
  4. 4Cerebrovascular Medicine, National Cardiovascular Center, Osaka, Japan
  1. Correspondence to:
 Mika Otsuki
 School of Psychological Science, Health Sciences University of Hokkaido, 2–5 Ainosato, Kita-ku, Sapporo, Hokkaido, 002–8072, Japan;


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
  • repetition
  • voluntary speech
  • Wernicke’s aphasia

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  • Competing interests: none declared