Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Ochab, Jeremi K."'
Autor:
Wątorek, Marcin, Tomczyk, Wojciech, Gawłowska, Magda, Golonka-Afek, Natalia, Żyrkowska, Aleksandra, Marona, Monika, Wnuk, Marcin, Słowik, Agnieszka, Ochab, Jeremi K., Fafrowicz, Magdalena, Marek, Tadeusz, Oświęcimka, Paweł
Publikováno v:
Biomedical Signal Processing and Control 91, 105916 (2024)
Quantifying the complex/multifractal organization of the brain signals is crucial to fully understanding the brain processes and structure. In this contribution, we performed the multifractal analysis of the electroencephalographic (EEG) data obtaine
Externí odkaz:
http://arxiv.org/abs/2401.08321
Publikováno v:
Scientific Reports 13: 12341 (2023)
This paper addresses the question of the brain's critical dynamics after an injury such as a stroke. It is hypothesized that the healthy brain operates near a phase transition (critical point), which provides optimal conditions for information transm
Externí odkaz:
http://arxiv.org/abs/2307.14099
Autor:
Ochab, Jeremi K., Wątorek, Marcin, Ceglarek, Anna, Fąfrowicz, Magdalena, Lewandowska, Koryna, Marek, Tadeusz, Sikora-Wachowicz, Barbara, Oświęcimka, Paweł
Publikováno v:
Sci Rep 12, 17866 (2022)
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. We sh
Externí odkaz:
http://arxiv.org/abs/2209.13297
Already two decades passed since the first applications of graph theory to brain neuroimaging. Since that early description, the characterization of the brain as a very large interacting complex network has evolved in several directions. In this brie
Externí odkaz:
http://arxiv.org/abs/2112.09806
Publikováno v:
Frontiers in Neuroscience 15 (2021): 1194
The center stage of neuro-imaging is currently occupied by studies of functional correlations between brain regions. These correlations define the brain functional networks, which are the most frequently used framework to represent and interpret a va
Externí odkaz:
http://arxiv.org/abs/2007.15728
Autor:
Ochab, Jeremi K., Gerc, Krzysztof, Fafrowicz, Magdalena, Gudowska-Nowak, Ewa, Marek, Tadeusz, Nowak, Maciej A., Oginska, Halszka, Oles, Katarzyna, Rams, Małgorzata, Szwed, Jerzy, Chialvo, Dante R.
Objective This study provides an objective measure based on actigraphy for Attention Deficit Hyperactivity Disorder (ADHD) diagnosis in children. We search for motor activity features that could allow further investigation into their association with
Externí odkaz:
http://arxiv.org/abs/1902.03530
Autor:
Gudowska-Nowak, Ewa, Nowak, Maciej A., Chialvo, Dante R., Ochab, Jeremi K., Tarnowski, Wojciech
Publikováno v:
Neural Computation 32(2), 395-423 (2020)
The study of neuronal interactions is currently at the center of several big collaborative neuroscience projects (including the Human Connectome Project, the Blue Brain Project, the Brainome, etc.) which attempt to obtain a detailed map of the entire
Externí odkaz:
http://arxiv.org/abs/1805.03592
Publikováno v:
NeuroImage 184 (2019), pp. 577-585
The study of correlations between brain regions is an important chapter of the analysis of large-scale brain spatiotemporal dynamics. In particular, novel methods suited to extract dynamic changes in mutual correlations are needed. Here we scrutinize
Externí odkaz:
http://arxiv.org/abs/1803.05048
Autor:
Ochab, Jeremi K.
Statistical significance of network clustering has been an unresolved problem since it was observed that community detection algorithms produce false positives even in random graphs. After a phase transition between undetectable and detectable cluste
Externí odkaz:
http://arxiv.org/abs/1511.00906
Autor:
Chialvo, Dante R., Torrado, Ana Maria Gonzalez, Gudowska-Nowak, Ewa, Ochab, Jeremi K., Montoya, Pedro, Nowak, Maciej A., Tagliazucchi, Enzo
Publikováno v:
Papers in Physics, vol. 7, art. 070017 (2015)
Human motor activity is constrained by the rhythmicity of the 24 hours circadian cycle, including the usual 12-15 hours sleep-wake cycle. However, activity fluctuations also appear over a wide range of temporal scales, from days to a few seconds, res
Externí odkaz:
http://arxiv.org/abs/1506.06717