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Turkish Journal of Neurology Indexed By
  Decreased Stuttering While Walking: Speech and fMRI Findings [Turk J Neurol]
Turk J Neurol. Ahead of Print: TJN-40501 | DOI: 10.4274/tnd.2022.40501  

Decreased Stuttering While Walking: Speech and fMRI Findings

Özlem Öge - Daşdöğen1, Cigdem Ulasoglu - Yildiz2, Elif Kurt3, Tamer Demiralp4
1Department of Speech and Language Therapy, Faculty of Health Sciences, İstinye University, İstanbul, Turkey
2Hulusi Behçet Life Sciences Laboratory Neuroscience Unit, İstanbul University, İstanbul, Turkey
3Aziz Sancar Institute of Experimental Medicine, İstanbul University, İstanbul, Turkey
4Department of Physiology, İstanbul Faculty of Medicine, İstanbul University, İstanbul, Turkey

We present an adult case with severe persistent developmental stuttering (PDS) that improved
dramatically with simultaneous lower limb movements (LMs). During speaking with simultaneous lower
limb movement (SLM), her stuttering severity was considerably reduced. Using functional magnetic
resonance imaging (fMRI), we investigated the neural basis of speech fluency during speaking with and
without simultaneous LM. Bilateral (predominantly right) peri-rolandic cortices, supplementary motor
areas (SMA), right fusiform gyrus (FFG), and left frontal gyrus were activated in the SLM compared to
the ‘speaking only’ (S) and LM. There might be a subtype of PDS that benefits from rhythmic LMs to
improve the speech fluency. Locomotor and respiratory coupling might temporarily induce cortical timing
networks and, also induce activation, predominantly in the right hemisphere with a potential pacemaker
effect. Further investigation in larger groups is required to elucidate whether rhythmic simultaneous LMs
improve stuttering.

Keywords: Functional magnetic resonance imaging, Lower limb movement, Motor movement, Speech fluency, Simultaneous movement, Stuttering

Corresponding Author: Özlem Öge - Daşdöğen, Türkiye

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