Motor control mechanisms toward precise kinematic coding and cross-individual uniformity

26th September 2024

Timing : 11 am EST

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For a list of all talks at the NanoBio seminar Series Fall'24, see here


Scientific revolutions have often hinged on the discovery of mechanisms with mathematical precision and uniformity. Newton’s laws of motion sparked the era of mechanical engineering, while the trinucleotide codes central to the DNA-RNA-protein dogma ushered in genetic engineering. However, human motor control theory has largely remained descriptive, lacking precise mathematical models for the detailed kinematic control that is commonplace in physics. The complexity and variability of neuronal networks across individuals raise the question of whether a precise motor control mechanism ever exists at the systems level.

In this talk, we present our recent findings on how the cerebellum utilizes frequency coding to govern the detailed kinematics of movement. We demonstrate that failures in this frequency control can result in tremors or ataxia, proposing a unifying theory for a range of movement disorders. Additionally, we explore how cerebellar neurons compute precise frequency dynamics through population coding, contributing to the broader understanding of motor control across individuals.




Snow
Dr. Ming-Kai Pan, MD, PhD
Associate Professor
Department and Graduate institute of Pharmacology, College of Medicine, National Taiwan University
Cerebellar Research Center, National Taiwan University Hospital
Molecular Imaging Center, National Taiwan University
Institute of Biomedical Sciences, Academia Sinica

Ming-Kai Pan is a movement disorder specialist with a dual focus on cerebellar motor and cognitive control and their related disorders. He is currently running the Cerebellar Research Center at National Taiwan University Hospital, the deputy director of the Molecular Imaging Center at National Taiwan University, and leads several national neuroscience projects. Dr. Pan's work has significantly advanced our understanding of the pathophysiology of essential tremor, the most common movement disorder, and he has contributed to multiple textbooks as an authoritative voice on this subject. In his lab, Dr. Pan drives innovation by employing cutting-edge neural dynamic technologies, bridging clinical neurology with basic neuroscience. His expertise spans cerebellar electroencephalography with dynamic spatial mapping, intraoperative cerebellar recordings, and advanced mouse-based methodologies, including tissue clearing, optogenetics, fiber photometry, calcium imaging, optical coherence tomography, and electrophysiology. Additionally, he has made significant contributions to bioengineering, particularly in the development of novel motion-tracking technologies and volumetric super-speed microscopy. Dr. Pan's research has been published in leading journals, including Science Translational Medicine, Journal of Clinical Investigation, Bioengineering & Translational Medicine, Science Advances, Advanced Science, PNAS, and Acta Neuropathologica, reflecting his impact on both medical and neural dynamic advancements.