Targeting the fundamentals for tremors: the frequency and amplitude coding in essential tremor

Abstract Essential tremor (ET) is one of the most common movement disorders with heterogeneous pathogenesis involving both genetic and environmental factors, which often results in variable therapeutic outcomes. Despite the diverse etiology, ET is defined by a core symptom of action tremor, an invol...

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Main Author: Ming-Kai Pan
Format: Article
Language:English
Published: BMC 2025-02-01
Series:Journal of Biomedical Science
Subjects:
Online Access:https://doi.org/10.1186/s12929-024-01112-8
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author Ming-Kai Pan
author_facet Ming-Kai Pan
author_sort Ming-Kai Pan
collection DOAJ
description Abstract Essential tremor (ET) is one of the most common movement disorders with heterogeneous pathogenesis involving both genetic and environmental factors, which often results in variable therapeutic outcomes. Despite the diverse etiology, ET is defined by a core symptom of action tremor, an involuntary rhythmic movement that can be mathematically characterized by two parameters: tremor frequency and tremor amplitude. Recent advances in neural dynamics and clinical electrophysiology have provided valuable insights to explain how tremor frequency and amplitude are generated within the central nervous system. This review summarizes both animal and clinical evidence, encompassing the kinematic features of tremors, circuitry dynamics, and the neuronal coding mechanisms for the two parameters. Neural population coding within the olivocerebellum is implicated in determining tremor frequency, while the cerebellar circuitry synchrony and cerebellar-thalamo-cortical interactions play key roles in regulating tremor amplitude. Novel therapeutic strategies aimed at tuning tremor frequency and amplitude are also discussed. These neural dynamic approaches target the conserved mechanisms across ET patients with varying etiologies, offering the potential to develop universally effective therapies for ET.
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spelling doaj-art-11627d2a912e403a91ee2195c23ef5062025-08-20T02:43:13ZengBMCJournal of Biomedical Science1423-01272025-02-0132111310.1186/s12929-024-01112-8Targeting the fundamentals for tremors: the frequency and amplitude coding in essential tremorMing-Kai Pan0Department and Graduate Institute of Pharmacology, National Taiwan University College of MedicineAbstract Essential tremor (ET) is one of the most common movement disorders with heterogeneous pathogenesis involving both genetic and environmental factors, which often results in variable therapeutic outcomes. Despite the diverse etiology, ET is defined by a core symptom of action tremor, an involuntary rhythmic movement that can be mathematically characterized by two parameters: tremor frequency and tremor amplitude. Recent advances in neural dynamics and clinical electrophysiology have provided valuable insights to explain how tremor frequency and amplitude are generated within the central nervous system. This review summarizes both animal and clinical evidence, encompassing the kinematic features of tremors, circuitry dynamics, and the neuronal coding mechanisms for the two parameters. Neural population coding within the olivocerebellum is implicated in determining tremor frequency, while the cerebellar circuitry synchrony and cerebellar-thalamo-cortical interactions play key roles in regulating tremor amplitude. Novel therapeutic strategies aimed at tuning tremor frequency and amplitude are also discussed. These neural dynamic approaches target the conserved mechanisms across ET patients with varying etiologies, offering the potential to develop universally effective therapies for ET.https://doi.org/10.1186/s12929-024-01112-8Essential tremorTremorAmplitudeFrequencyMotor kinematicsMotor control
spellingShingle Ming-Kai Pan
Targeting the fundamentals for tremors: the frequency and amplitude coding in essential tremor
Journal of Biomedical Science
Essential tremor
Tremor
Amplitude
Frequency
Motor kinematics
Motor control
title Targeting the fundamentals for tremors: the frequency and amplitude coding in essential tremor
title_full Targeting the fundamentals for tremors: the frequency and amplitude coding in essential tremor
title_fullStr Targeting the fundamentals for tremors: the frequency and amplitude coding in essential tremor
title_full_unstemmed Targeting the fundamentals for tremors: the frequency and amplitude coding in essential tremor
title_short Targeting the fundamentals for tremors: the frequency and amplitude coding in essential tremor
title_sort targeting the fundamentals for tremors the frequency and amplitude coding in essential tremor
topic Essential tremor
Tremor
Amplitude
Frequency
Motor kinematics
Motor control
url https://doi.org/10.1186/s12929-024-01112-8
work_keys_str_mv AT mingkaipan targetingthefundamentalsfortremorsthefrequencyandamplitudecodinginessentialtremor