Multifractal organization of EEG signals in Multiple Sclerosis

no code implementations • 16 Jan 2024 • Marcin Wątorek, Wojciech Tomczyk, Magda Gawłowska, Natalia Golonka-Afek, Aleksandra Żyrkowska, Monika Marona, Marcin Wnuk, Agnieszka Słowik, Jeremi K. Ochab, Magdalena Fafrowicz, Tadeusz Marek, Paweł Oświęcimka

Quantifying the complex/multifractal organization of the brain signals is crucial to fully understanding the brain processes and structure.

EEG Time Series

Task-dependent fractal patterns of information processing in working memory

no code implementations • 27 Sep 2022 • Jeremi K. Ochab, Marcin Wątorek, Anna Ceglarek, Magdalena Fąfrowicz, Koryna Lewandowska, Tadeusz Marek, Barbara Sikora-Wachowicz, Paweł Oświęcimka

We applied detrended fluctuation analysis, power spectral density, and eigenanalysis of detrended cross-correlations to investigate fMRI data representing a diurnal variation of working memory in four visual tasks: two verbal and two nonverbal.

Retrieval

Diurnal variations of resting-state fMRI data: A graph-based analysis

no code implementations • 12 Oct 2021 • Farzad V. Farahani, Waldemar Karwowski, Mark D Esposito, Richard F. Betzel, Magdalena Fafrowicz, Bartosz Bohaterewicz, Tadeusz Marek, Pamela K. Douglas

Also, connectivity and hub analyses showed that the somatomotor, ventral attention, and visual networks are the most densely-connected brain areas in both sessions, respectively, with the first being more active in the evening session and the two latter in the morning session.