Dr Frederic von Wegner

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Dr Frederic von Wegner

Senior Lecturer

2007: Doctorate in Physiology (Heidelberg University)

2015: German board certification Neurology

2019: German board certification: subspecialty Neurointensive Care

Medicine & Health

School of Biomedical Sciences

Phone

+61-2-9065 3742

E-mail

f.vonwegner@unsw.edu.au

Location

Wallace Wurth Building, Level 3 Rm 314

Book Chapters | 2023

Laufs H; von Wegner F, 2023, 'EEG-Mapping', in Klinische Elektroenzephalographie, Springer Berlin Heidelberg, pp. 503 - 516,

Book Chapters | 2013

, 2013, 'Neuroimaging of wakefulness and sleep', in , Cambridge University Press, pp. 91 - 128,

Book Chapters | 2012

Von Wegner F; Wieder N; Fink RHA, 2012, 'Simulation strategies for calcium microdomains and calcium-regulated calcium channels', in , pp. 553 - 567,

Book Chapters | 2012

Wieder N; Fink RHA; von Wegner F, 2012, 'Mesoscopic simulation of subcellular calcium microdomains and calcium-regulated calcium channels', in Calcium Channels: Properties, Functions and Regulation, pp. 121 - 131

Book Chapters | 2010

Von Wegner F; Laufs H, 2010, 'Neuroimaging of wakefulness', in Neuroimaging of Sleep and Sleep Disorders, pp. 91 - 95,
Journal articles | 2024

Hermann G; Tödt I; Tagliazucchi E; Todtenhaupt IK; Laufs H; von Wegner F, 2024, 'Propofol Reversibly Attenuates Short-Range Microstate Ordering and 20��Hz Microstate Oscillations', Brain Topography, 37, pp. 329 - 342,

Journal articles | 2024

Wiemers MC; Laufs H; von Wegner F, 2024, 'Frequency Analysis of EEG Microstate Sequences in Wakefulness and NREM Sleep', Brain Topography, 37, pp. 312 - 328,

Journal articles | 2024

von Wegner F; Wiemers M; Hermann G; Tödt I; Tagliazucchi E; Laufs H, 2024, 'Complexity Measures for EEG Microstate Sequences: Concepts and Algorithms', Brain Topography, 37, pp. 296 - 311,

Journal articles | 2023

Todtenhaupt IK; Hermann G; Tödt I; von Wegner F; Laufs H, 2023, 'P-56 Event-related potentials (P300) in the assessment of attentional processing in epilepsy', Clinical Neurophysiology, 148, pp. e34 - e34,

Journal articles | 2022

Hermann G; Tödt I; Laufs H; Tagliazucchi E; von Wegner F, 2022, 'FV 8 Quantifying consciousness in healthy adults using EEG phase coherence', Clinical Neurophysiology, 137, pp. e5 - e6,

Journal articles | 2021

Jia W; von Wegner F; Zhao M; Zeng Y, 2021, 'Network oscillations imply the highest cognitive workload and lowest cognitive control during idea generation in open-ended creation tasks', Scientific Reports, 11,

Journal articles | 2021

chen F; Zhou Y; Zhu Y; zhu R; Guan P; Fan J; zhou L; Valanoor N; Wegner FV; Saribatir E; Birznieks I; Wan T; Chu D; von Wegner F, 2021, 'Recent progress in artificial synaptic devices: materials, processing and applications', Journal of Materials Chemistry C, 9, pp. 8372 - 8394,

Journal articles | 2021

von Wegner F; Bauer S; Rosenow F; Triesch J; Laufs H, 2021, 'EEG microstate periodicity explained by rotating phase patterns of resting-state alpha oscillations', NeuroImage, 224,

Journal articles | 2020

Wieder N; Fink RHA; von Wegner F, 2020, 'Simulation Strategies for Calcium Microdomains and Calcium Noise', , 1131, pp. 771 - 797,

Journal articles | 2019

Knaut P; von Wegner F; Morzelewski A; Laufs H, 2019, 'EEG-correlated fMRI of human alpha (de-)synchronization', Clinical Neurophysiology, 130, pp. 1375 - 1386,

Journal articles | 2018

Gamboa OL; Sung Lai Yuen K; von Wegner F; Behrens M; Steinmetz H, 2018, 'The challenge of forgetting: Neurobiological mechanisms of auditory directed forgetting', Human Brain Mapping, 39, pp. 249 - 263,

Journal articles | 2018

Von Wegner F; Laufs H; Tagliazucchi E, 2018, 'Mutual information identifies spurious Hurst phenomena in resting state EEG and fMRI data', Physical Review E, 97,

Journal articles | 2018

Von Wegner F, 2018, 'Partial autoinformation to characterize symbolic sequences', Frontiers in Physiology, 9,

Journal articles | 2018

von Wegner F; Knaut P; Laufs H, 2018, 'EEG microstate sequences from different clustering algorithms are information-theoretically invariant', Frontiers in Computational Neuroscience, 12,

Journal articles | 2018

von Wegner F; Laufs H, 2018, 'Information-theoretical analysis of EEG microstate sequences in python', Frontiers in Neuroinformatics, 12,

Journal articles | 2017

Bauer S; van Alphen N; Becker A; Chiocchetti A; Deichmann R; Deller T; Freiman T; Freitag CM; Gehrig J; Hermsen AM; Jedlicka P; Kell C; Klein KM; Knake S; Kullmann DM; Liebner S; Norwood BA; Omigie D; Plate K; Reif A; Reif PS; Reiss Y; Roeper J; Ronellenfitsch MW; Schorge S; Schratt G; Schwarzacher SW; Steinbach JP; Strzelczyk A; Triesch J; Wagner M; Walker MC; von Wegner F; Rosenow F, 2017, 'Personalized translational epilepsy research — Novel approaches and future perspectives: Part II: Experimental and translational approaches', Epilepsy and Behavior, 76, pp. 7 - 12,

Journal articles | 2017

Gamboa OL; Garcia-Campayo J; Mueller T; von Wegner F, 2017, 'Suppress to Forget: The Effect of a Mindfulness-Based Strategy during an Emotional Item-Directed Forgetting Paradigm', FRONTIERS IN PSYCHOLOGY, 8,

Journal articles | 2017

Rosenow F; van Alphen N; Becker A; Chiocchetti A; Deichmann R; Deller T; Freiman T; Freitag CM; Gehrig J; Hermsen AM; Jedlicka P; Kell C; Klein KM; Knake S; Kullmann DM; Liebner S; Norwood BA; Omigie D; Plate K; Reif A; Reif PS; Reiss Y; Roeper J; Ronellenfitsch MW; Schorge S; Schratt G; Schwarzacher SW; Steinbach JP; Strzelczyk A; Triesch J; Wagner M; Walker MC; von Wegner F; Bauer S, 2017, 'Personalized translational epilepsy research — Novel approaches and future perspectives: Part I: Clinical and network analysis approaches', Epilepsy and Behavior, 76, pp. 13 - 18,

Journal articles | 2017

von Wegner F; Tagliazucchi E; Laufs H, 2017, 'Information-theoretical analysis of resting state EEG microstate sequences - non-Markovianity, non-stationarity and periodicities', NeuroImage, 158, pp. 99 - 111,

Journal articles | 2016

Arnold C; Gispert S; Bonig H; Von Wegner F; Somasundaram S; Kell CA, 2016, 'Dopaminergic Modulation of Cognitive Preparation for Overt Reading: Evidence from the Study of Genetic Polymorphisms', Cerebral Cortex, 26, pp. 1539 - 1557,

Journal articles | 2016

von Wegner F; Tagliazucchi E; Brodbeck V; Laufs H, 2016, 'Analytical and empirical fluctuation functions of the EEG microstate random walk - Short-range vs. long-range correlations', NeuroImage, 141, pp. 442 - 451,

Journal articles | 2015

Bolesch S; von Wegner F; Senft C; Lorenz MW, 2015, 'Transcranial ultrasound to detect elevated intracranial pressure: Comparison of septum pellucidum undulations and optic nerve sheath diameter', Ultrasound in Medicine and Biology, 41, pp. 1233 - 1240,

Journal articles | 2015

Kuhn A; Brodbeck V; Tagliazucchi E; Morzelewski A; von Wegner F; Laufs H, 2015, 'Narcoleptic Patients Show Fragmented EEG-Microstructure During Early NREM Sleep', Brain Topography, 28, pp. 619 - 635,

Journal articles | 2015

Wieder N; Fink R; Von Wegner F, 2015, 'Exact stochastic simulation of a calcium microdomain reveals the impact of Ca²⁺ fluctuations on IP3R gating', Biophysical Journal, 108, pp. 557 - 567,

Journal articles | 2014

Friedrich O; Yi B; Edwards JN; Reischl B; Wirth-Huc̈king A; Buttgereit A; Lang R; Weber C; Polyak F; Liu I; Von Wegner F; Cully TR; Lee A; Most P; Vol̈kers M, 2014, 'IL-1α reversibly inhibits skeletal muscle ryanodine receptor a novel mechanism for critical illness myopathy?', American Journal of Respiratory Cell and Molecular Biology, 50, pp. 1096 - 1106,

Journal articles | 2014

Gamboa OL; Tagliazucchi E; Von Wegner F; Jurcoane A; Wahl M; Laufs H; Ziemann U, 2014, 'Working memory performance of early MS patients correlates inversely with modularity increases in resting state functional connectivity networks', NeuroImage, 94, pp. 385 - 395,

Journal articles | 2014

von Wegner F; Wieder N; Fink RHA, 2014, 'Microdomain calcium fluctuations as a colored noise process', Frontiers in Genetics, 5,

Journal articles | 2013

Tagliazucchi E; Von Wegner F; Morzelewski A; Brodbeck V; Jahnke K; Laufs H, 2013, 'Breakdown of long-range temporal dependence in default mode and attention networks during deep sleep', Proceedings of the National Academy of Sciences of the United States of America, 110, pp. 15419 - 15424,

Journal articles | 2013

Tagliazucchi E; von Wegner F; Morzelewski A; Borisov S; Jahnke K; Laufs H, 2013, 'Corrigendum to "Automatic sleep staging using fMRI functional connectivity data" [Neuroimage 63/1 (2012) 63-72]', NeuroImage, 81, pp. 506,

Journal articles | 2013

Tagliazucchi E; von Wegner F; Morzelewski A; Brodbeck V; Borisov S; Jahnke K; Laufs H, 2013, 'Large-scale brain functional modularity is reflected in slow electroencephalographic rhythms across the human non-rapid eye movement sleep cycle', NeuroImage, 70, pp. 327 - 339,

Journal articles | 2012

Arnold C; Gehrig J; von Wegner F; Kell CA, 2012, 'Dopaminergic control of speech production in Parkinson's disease-an fMRI study', Klinische Neurophysiologie, 43,

Journal articles | 2012

Brodbeck V; Kuhn A; von Wegner F; Morzelewski A; Tagliazucchi E; Borisov S; Michel CM; Laufs H, 2012, 'EEG microstates of wakefulness and NREM sleep', NeuroImage, 62, pp. 2129 - 2139,

Journal articles | 2012

Jahnke K; von Wegner F; Morzelewski A; Borisov S; Maischein M; Steinmetz H; Laufs H, 2012, 'To wake or not to wake? The two-sided nature of the human K-complex', NeuroImage, 59, pp. 1631 - 1638,

Journal articles | 2012

Laufs H; Tagliazucchi E; von Wegner F; Jahnke K; Morzelewski A; Borisov S; Steinmetz H, 2012, 'Influence of vigilance on resting state brain activity', Klinische Neurophysiologie, 43,

Journal articles | 2012

Tagliazucchi E; von Wegner F; Morzelewski A; Borisov S; Jahnke K; Laufs H, 2012, 'Automatic sleep staging using fMRI functional connectivity data', NeuroImage, 63, pp. 63 - 72,

Journal articles | 2012

Tagliazucchi E; von Wegner F; Morzelewski A; Brodbeck V; Laufs H, 2012, 'Dynamic BOLD functional connectivity in humans and its electrophysiological correlates', Frontiers in Human Neuroscience,

Journal articles | 2011

Baudrexel S; Witte T; Seifried C; von Wegner F; Beissner F; Klein JC; Steinmetz H; Deichmann R; Roeper J; Hilker R, 2011, 'Resting state fMRI reveals increased subthalamic nucleus-motor cortex connectivity in Parkinson's disease', NeuroImage, 55, pp. 1728 - 1738,

Journal articles | 2011

Völkers M; Weidenhammer C; Herzog N; Qiu G; Spaich K; Von Wegner F; Peppel K; Müller OJ; Schinkel S; Rabinowitz JE; Hippe HJ; Brinks H; Katus HA; Koch WJ; Eckhart AD; Friedrich O; Most P, 2011, 'The inotropic peptide βaRKct improves βaR responsiveness in normal and failing cardiomyocytes through Gβγ-mediated L-type calcium current disinhibition', Circulation Research, 108, pp. 27 - 39,

Journal articles | 2011

Wieder N; Fink RHA; Von Wegner F, 2011, 'Exact and approximate stochastic simulation of intracellular calcium dynamics', Journal of Biomedicine and Biotechnology, 2011,

Journal articles | 2010

Edwards JN; Friedrich O; Cully TR; Von Wegner F; Murphy RM; Launikonis BS, 2010, 'Upregulation of store-operated Ca²⁺ entry in dystrophic mdx mouse muscle', American Journal of Physiology - Cell Physiology, 299,

Journal articles | 2010

Edwards JN; Murphy RM; Cully TR; von Wegner F; Friedrich O; Launikonis BS, 2010, 'Ultra-rapid activation and deactivation of store-operated Ca²⁺ entry in skeletal muscle', Cell Calcium, 47, pp. 458 - 467,

Journal articles | 2010

Friedrich O; Both M; Weber C; Schürmann S; Teichmann MDH; Von Wegner F; Fink RHA; Vogel M; Chamberlain JS; Garbe C, 2010, 'Microarchitecture is severely compromised but motor protein function is preserved in dystrophic mdx skeletal muscle', Biophysical Journal, 98, pp. 606 - 616,

Journal articles | 2010

Friedrich O; Fink RHA; von Wegner F, 2010, 'New factors contributing to dynamic calcium regulation in the skeletal muscle triad-a crowded place', Biophysical Reviews, 2, pp. 29 - 38,

Journal articles | 2010

Friedrich O; Hund E; Von Wegner F, 2010, 'Enhanced muscle shortening and impaired Ca²⁺ channel function in an acute septic myopathy model', Journal of Neurology, 257, pp. 546 - 555,

Journal articles | 2010

Schürmann S; Von Wegner F; Fink RHA; Friedrich O; Vogel M, 2010, 'Second harmonic generation microscopy probes different states of motor protein interaction in myofibrils', Biophysical Journal, 99, pp. 1842 - 1851,

Journal articles | 2009

Von Wegner F; Schurmann S; Fink RHA; Vogel M; Friedrich O, 2009, 'Motor protein function in skeletal muscle-a multiple scale approach to contractility', IEEE Transactions on Medical Imaging, 28, pp. 1632 - 1642,

Journal articles | 2008

Friedrich O; Weber C; Wegner FV; Chamberlain JS; Fink RHA, 2008, 'Unloaded speed of shortening in voltage-clamped intact skeletal muscle fibers from wt, mdx, and transgenic minidystrophin mice using a novel high-speed acquisition system', Biophysical Journal, 94, pp. 4751 - 4765,

Journal articles | 2008

Friedrich O; von Wegner F; Chamberlain JS; Fink RHA; Rohrbach P, 2008, 'L-type Ca²⁺ channel function is linked to dystrophin expression in mammalian muscle', PLoS ONE, 3,

Journal articles | 2008

Heinzel FR; Bito V; Biesmans L; Wu M; Detre E; Von Wegner F; Claus P; Dymarkowski S; Maes F; Bogaert J; Rademakers F; D'Hooge J; Sipido K, 2008, 'Remodeling of T-tubules and reduced synchrony of Ca2+ release in myocytes from chronically ischemic myocardium', Circulation Research, 102, pp. 338 - 346,

Journal articles | 2008

Teichmann MDH; Wegner FV; Fink RHA; Chamberlain JS; Launikonis BS; Martinac B; Friedrich O, 2008, 'Inhibitory control over Ca²⁺ sparks via mechanosensitive channels is disrupted in dystrophin deficient muscle but restored by mini-dystrophin expression', PLoS ONE, 3,

Journal articles | 2008

Von Wegner F; Ober T; Weber C; Schürmann S; Winter R; Friedrich O; Fink RHA; Vogel M, 2008, 'Velocity distributions of single F-actin trajectories from a fluorescence image series using trajectory reconstruction and optical flow mapping', Journal of Biomedical Optics, 13,

Journal articles | 2008

Wegner FV; Koyama S; Miwa T; Friedrich O, 2008, 'Resting membrane potentials recorded on-site in intact skeletal muscles from deep sea fish (Sigmops gracile) Salvaged from depths up to 1.000 m', Marine Biotechnology, 10, pp. 478 - 486,

Journal articles | 2007

Friedrich O; V Wegner F; Wink M; Fink RHA, 2007, 'NA⁺- and K⁺-channels as molecular targets of the alkaloid ajmaline in skeletal muscle fibres', British Journal of Pharmacology, 151, pp. 63 - 74,

Journal articles | 2007

Von Wegner F; Both M; Fink RHA; Friedrich O, 2007, 'Fast XYT imaging of elementary calcium release events in muscle with multifocal multiphoton microscopy and wavelet denoising and detection', IEEE Transactions on Medical Imaging, 26, pp. 925 - 934,

Journal articles | 2007

Völkers M; Loughrey CM; MacQuaide N; Remppis A; DeGeorge BR; Wegner FV; Friedrich O; Fink RHA; Koch WJ; Smith GL; Most P, 2007, 'S100A1 decreases calcium spark frequency and alters their spatial characteristics in permeabilized adult ventricular cardiomyocytes', Cell Calcium, 41, pp. 135 - 143,

Journal articles | 2006

Friedrich O; Wegner FV; Hartmann M; Frey B; Sommer K; Ludwig H; Fink RHA, 2006, ''In situ' high pressure confocal Ca²⁺-fluorescence microscopy in skeletal muscle: A new method to study pressure limits in mammalian cells', Undersea and Hyperbaric Medicine, 33, pp. 181 - 195

Journal articles | 2006

Von Wegner F; Both M; Fink RHA, 2006, 'Automated detection of elementary calcium release events using the A Trous wavelet transform', BIOPHYSICAL JOURNAL, 90, pp. 2151 - 2163,

Journal articles | 2006

Wegner FV; Both M; Fink RHA; Friedrich O, 2006, 'Elementary Ca²⁺ release events in mammalian skeletal muscle: Effects of the anaesthetic drug thiopental', Journal of Muscle Research and Cell Motility, 27, pp. 315 - 326,

Journal articles | 2005

Askoxylakis V; Zitzmann S; Mier W; Graham K; Krämer S; Von Wegner F; Fink RHA; Schwab M; Eisenhut M; Haberkorn U, 2005, 'Preclinical evaluation of the breast cancer cell-binding peptide, p160', Clinical Cancer Research, 11, pp. 6705 - 6712,

Journal articles | 2004

Both M; Vogel M; Friedrich O; Von Wegner F; Künsting T; Fink RHA; Uttenweiler D, 2004, 'Second harmonic imaging of intrinsic signals in muscle fibers in situ', Journal of Biomedical Optics, 9, pp. 882 - 892,
Preprints | 2023

Hermann G; Tödt I; Tagliazucchi E; Todtenhaupt IK; Laufs H; von Wegner F, 2023, Propofol reversibly attenuates short-range microstate ordering and 20 Hz microstate oscillations,

Conference Papers | 2023

Zha M; Muralidharan M; Ly K; Guo T; Von Wegner F; Shabani H; Hosseinzadeh Z; Lovell NH; Rathbun DL; Shivdasani MN, 2023, 'Probing the Contribution of Vertical Processing Layers of the Retina to White-Noise Electrical Stimulation Responses', in Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS, Institute of Electrical and Electronics Engineers (IEEE), United States, pp. 1 - 4, presented at 2023 45th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC), United States, 24 July 2023 - 27 July 2023,

Preprints | 2023

von Wegner F; Wiemers M; Hermann G; Tödt I; Tagliazucchi E; Laufs H, 2023, Complexity measures for EEG microstate sequences - concepts and algorithms,

Preprints | 2022

Wiemers MC; Laufs H; von Wegner F, 2022, Frequency analysis of EEG microstate sequences in wakefulness and NREM sleep,

Preprints | 2012

Tagliazucchi E; von Wegner F; Morzelewski A; Brodbeck V; Laufs H, 2012, Electrophysiological correlates of non-stationary BOLD functional connectivity fluctuations, ,

Conference Papers | 2010

Edwards JN; Cully TR; von Wegner F; Friedrich O; Thorn P; Launikonis BS, 2010, 'Superfast Confocal Imaging of Ca2+ Reveals the Spread of Excitation Through the Tubular Network and the Ca2+ Release Waveform in Skeletal Muscle', in BIOPHYSICAL JOURNAL, CELL PRESS, pp. 202A - 202A,

Conference Papers | 2010

Von Wegner F; Fink RHA, 2010, 'Stochastic simulation of calcium microdomains in the vicinity of an L-type calcium channel', in European Biophysics Journal, pp. 1079 - 1088,

Conference Papers | 2009

Launikonis BS; Edwards JN; von Wegner F; Friedrich O, 2009, 'Store-operated Ca2+ Entry In Skeletal Muscle Can Be Activated And Deactivated Within Milliseconds Of Ca2+ Release And Store Refilling', in BIOPHYSICAL JOURNAL, CELL PRESS, pp. 280A - 280A,

Conference Papers | 2009

Teichmann MDH; von Wegner F; Fink RHA; Chamberlain JS; Launikonis BS; Martinac B, 2009, 'Ca2+Spark Activity in Intact Dystrophin-Deficient mdx Muscle during Osmotic Challenge is Triggered by Mechanosensitive Pathways', in BIOPHYSICAL JOURNAL, CELL PRESS, pp. 22A - 23A,

Conference Papers | 2007

Schnee S; von Wegner F; Schuermann S; Ludwig H; Fink R; Friedrich O, 2007, 'Microdomain Ca2+ dynamics in mammalian muscle following prolonged high pressure treatments', in Angilella GGN; Pucci R; Siringo F (eds.), JOINT 21ST AIRAPT AND 45TH EHPRG INTERNATIONAL CONFERENCE ON HIGH PRESSURE SCIENCE AND TECHNOLOGY, IOP PUBLISHING LTD, ITALY, Univ Catania, Dept Phys Astronomy, Catania, presented at 21st AIRAPT/45th EHPRG International Conference on High Pressure Science and Technology, ITALY, Univ Catania, Dept Phys Astronomy, Catania, 17 September 2007 - 21 September 2007,

Conference Papers | 2007

Wegner FV; Ober T; Weber C; Friedrich O; Fink RHA; Vogel M, 2007, 'Multiresolution transform denoising and segmentation of single molecule motility image series', in Progress in Biomedical Optics and Imaging - Proceedings of SPIE,

Conference Papers | 2006

Vogel M; Schürmann S; Friedrich O; Wegner FV; Both M; Fink RHA, 2006, 'Scanning multi photon microscopy of SHG signals from single myofibrils of mammalian skeletal muscle', in Proceedings of SPIE - The International Society for Optical Engineering,

Conference Papers | 2006

Wegner FV; Both M; Fink RHA; Friedrich O, 2006, '3D high-speed multifocal multiphoton microscopy in muscle and wavelet analysis of fast elementary calcium release events', in 2006 3rd IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Proceedings, pp. 1148 - 1151

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2020: DFG (German Research Foundation), "Objective EEG bed side assessment of impaired consciousness in epilepsy", Kiel, Germany (Co-investigator)

2020: UNSW NHMA Seed Funding, (Associate Investigator)

2019: NHRMC Ideas Grant: "Cochlear purinergic adaptation as a biomarker for vulnerability to noise-induced hearing loss" (APP1188643, Associate Investigator)

2018-2021: Center for Personalized Translational Epilepsy Research (CePTER), Frankfurt am Main, Germany, subproject leader: biomarkers of epileptogenesis

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My Research Supervision

Suhrad Pethani, Masters Degree (Research), "Utilisation of High-density Electroencephalography (hdEEG) for localisation of seizure onset zone in presurgical evaluation in epilepsy surgery"

Benjamin Curtin, Neuroscience Honours, 2023-2024

My Teaching

Muscle Physiology (PHSL2101, PHSL2121, PHSL2501)

Muscle and Motor Control (NEUR3101), Co-convenor

Ageing & Endings (MFAC1526)

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