Search Results for author: Mariella Panagiotopoulou

Found 7 papers, 2 papers with code

Anti-seizure medication tapering is associated with delta band power reduction in a dose, region and time-dependent manner

1 code implementation2 May 2024 Guillermo M. Besne, Nathan Evans, Mariella Panagiotopoulou, Billy Smith, Fahmida A Chowdhury, Beate Diehl, John S Duncan, Andrew W McEvoy, Anna Miserocchi, Jane de Tisi, Mathew Walker, Peter N. Taylor, Chris Thornton, Yujiang Wang

Anti-seizure medications (ASMs) are the primary treatment for epilepsy, yet medication tapering effects have not been investigated in a dose, region, and time-dependent manner, despite their potential impact on research and clinical practice.

EEG

Diminished circadian and ultradian rhythms in pathological brain tissue in human in vivo

no code implementations13 Sep 2023 Mariella Panagiotopoulou, Christopher Thornton, Fahmida A Chowdhury, Beate Diehl, John S Duncan, Sarah J Gascoigne, Andrew W McEvoy, Anna Miserocchi, Billy C Smith, Jane de Tisi, Peter N Taylor, Yujiang Wang

Chronobiological rhythms, such as the circadian rhythm, have long been linked to neurological disorders, but it is currently unknown how pathological processes affect the expression of biological rhythms in the brain.

EEG

Temporal stability of intracranial EEG abnormality maps for localising epileptogenic tissue

no code implementations11 Feb 2023 Yujiang Wang, Gabrielle M Schroeder, Jonathan J Horsley, Mariella Panagiotopoulou, Fahmida A Chowdhury, Beate Diehl, John S Duncan, Andrew W McEvoy, Anna Miserocchi, Jane de Tisi, Peter N Taylor

To assess the localising value of band power abnormality, we computed DRS - a measure of how different the surgically resected and spared tissue were in terms of band power abnormalities - over time.

EEG

Chronic iEEG recordings and interictal spike rate reveal multiscale temporal modulations in seizure states

no code implementations27 Jan 2022 Gabrielle M. Schroeder, Philippa J. Karoly, Matias Maturana, Mariella Panagiotopoulou, Peter N. Taylor, Mark J. Cook, Yujiang Wang

We then compared SNS occurrence and duration to (1) time since implantation and (2) patient-specific circadian and multidien cycles in interictal spike rate.

EEG

Fluctuations in EEG band power at subject-specific timescales over minutes to days explain changes in seizure evolutions

no code implementations13 Dec 2020 Mariella Panagiotopoulou, Christoforos A Papasavvas, Gabrielle M Schroeder, Rhys H Thomas, Peter N Taylor, Yujiang Wang

These results suggest that subject-specific fluctuations in iEEG band power over timescales of minutes to days may serve as markers of seizure modulating processes.

EEG

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