Functional rhythmic tongue movements
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Compliance with ethical standards
Conflict of interest
The authors have no conflicts of interest to disclose.
All procedures performed in this study were in accordance with the ethical standards of the institutional research committee and with the Helsinki declaration; no formal ethical review was required.
Written informed consent was obtained from the patient for the publication of his case.
Segment 1. Rhythmic movements of the tongue resembling tremor with tongue deviation to the right producing rhythmic sound like horse gallop. There also was involvement of the lower lip with downward deviation of the lower lip at the angle of the mouth. Movements of the mouth floor muscles were present as well. Segment 2. Activation and disappearance of tongue tremor while the finger was moving towards and away from patient’s face respectively. This is perceived by the produced, like horse gallop, sound. Touching patient’s face changed tongue tremor frequency. Segment 3. Remission of tongue tremor after treatment (MP4 36816 KB)