Angela Flutter -

We describe a novel phenomenon observed in a single patient, pseudonymously referred to as “Angela Flutter.” The patient exhibits involuntary, high-frequency (8–12 Hz) oscillatory movements of the bilateral thenar eminences and orbicularis oculi muscles specifically when exposed to speech containing rising terminal pitch contours (high-rise terminals) in narrative contexts. Unlike essential tremor or myoclonus, the flutter is stimulus-locked, suppressible with focused attention, and absent during sleep or non-narrative auditory stimuli. We propose the term Angela Flutter as a provisional eponym for this stimulus-triggered, frequency-specific, non-epileptic movement disorder. Potential mechanisms involve aberrant coupling between the superior temporal gyrus and cerebellar-thalamic-cortical loops. Further case collections are required to validate the entity.

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Flutter phenomena in medicine typically describe rapid rhythmic contractions (e.g., diaphragmatic flutter, atrial flutter). The present case uniquely links motor flutter to socio-emotional prosody. We describe a novel phenomenon observed in a