Natasa Kovacevic

Summary

Publications

  1. pmc Empirical and theoretical aspects of generation and transfer of information in a neuromagnetic source network
    Vasily A Vakorin
    Baycrest Centre, Rotman Research Institute of Baycrest Toronto, ON, Canada
    Front Syst Neurosci 5:96. 2011
  2. doi request reprint Variability of brain signals processed locally transforms into higher connectivity with brain development
    Vasily A Vakorin
    Rotman Research Institute of Baycrest, Toronto, Ontario M6A 2E1, Canada
    J Neurosci 31:6405-13. 2011
  3. doi request reprint Confounding effects of indirect connections on causality estimation
    Vasily A Vakorin
    Rotman Research Institute of Baycrest, Toronto, Canada
    J Neurosci Methods 184:152-60. 2009
  4. doi request reprint Exploring transient transfer entropy based on a group-wise ICA decomposition of EEG data
    Vasily A Vakorin
    Rotman Research Institute of Baycrest, Canada
    Neuroimage 49:1593-600. 2010
  5. doi request reprint Complexity analysis of source activity underlying the neuromagnetic somatosensory steady-state response
    Vasily A Vakorin
    Rotman Research Institute of Baycrest, Canada
    Neuroimage 51:83-90. 2010
  6. pmc The importance of being variable
    Douglas D Garrett
    Rotman Research Institute, Baycrest, Toronto, Ontario M6A 2E1, Canada
    J Neurosci 31:4496-503. 2011
  7. doi request reprint Spatiotemporal analysis of auditory "what" and "where" working memory
    Claude Alain
    Rotman Research Institute, Baycrest Centre for Geriatric Care, Toronto, ON M6A 2E1, Canada
    Cereb Cortex 19:305-14. 2009
  8. ncbi request reprint Modality-independent processes in cued motor preparation revealed by cortical potentials
    Andreea Oliviana Diaconescu
    Rotman Research Institute of Baycrest Centre, University of Toronto, Toronto, Ontario, Canada
    Neuroimage 42:1255-65. 2008
  9. pmc Extracting message inter-departure time distributions from the human electroencephalogram
    Bratislav Misić
    Rotman Research Institute, Baycrest Centre, Toronto, Ontario, Canada
    PLoS Comput Biol 7:e1002065. 2011
  10. pmc A multivariate analysis of age-related differences in default mode and task-positive networks across multiple cognitive domains
    Cheryl L Grady
    Rotman Research Institute at Baycrest, Toronto, Ontario, Canada
    Cereb Cortex 20:1432-47. 2010

Detail Information

Publications18

  1. pmc Empirical and theoretical aspects of generation and transfer of information in a neuromagnetic source network
    Vasily A Vakorin
    Baycrest Centre, Rotman Research Institute of Baycrest Toronto, ON, Canada
    Front Syst Neurosci 5:96. 2011
    ..Our findings support the previous attempts to characterize functional organization of the activated brain, based on a combination of non-linear dynamics and temporal features of brain connectivity, such as time delay...
  2. doi request reprint Variability of brain signals processed locally transforms into higher connectivity with brain development
    Vasily A Vakorin
    Rotman Research Institute of Baycrest, Toronto, Ontario M6A 2E1, Canada
    J Neurosci 31:6405-13. 2011
    ..At the same time, we observed the desynchronization effects associated with brain development in the higher beta to lower gamma range...
  3. doi request reprint Confounding effects of indirect connections on causality estimation
    Vasily A Vakorin
    Rotman Research Institute of Baycrest, Toronto, Canada
    J Neurosci Methods 184:152-60. 2009
    ..Finally, we consider the problem of model misspecification and its effect on the robustness of the observed connectivity patterns, showing that misspecifying the model may be an issue even for model-free information-theoretic approach...
  4. doi request reprint Exploring transient transfer entropy based on a group-wise ICA decomposition of EEG data
    Vasily A Vakorin
    Rotman Research Institute of Baycrest, Canada
    Neuroimage 49:1593-600. 2010
    ..A secondary PLS analysis is performed to assess robust task-specific changes in transfer entropy estimates between functionally specific components...
  5. doi request reprint Complexity analysis of source activity underlying the neuromagnetic somatosensory steady-state response
    Vasily A Vakorin
    Rotman Research Institute of Baycrest, Canada
    Neuroimage 51:83-90. 2010
    ..Our results extend the understanding of synchronization between co-activated brain regions, focusing on temporal coordination between events in terms of synchronized multidimensional signal patterns...
  6. pmc The importance of being variable
    Douglas D Garrett
    Rotman Research Institute, Baycrest, Toronto, Ontario M6A 2E1, Canada
    J Neurosci 31:4496-503. 2011
    ..We thus argue that the precise nature of relations between aging, cognition, and brain function is underappreciated by using mean-based brain measures exclusively...
  7. doi request reprint Spatiotemporal analysis of auditory "what" and "where" working memory
    Claude Alain
    Rotman Research Institute, Baycrest Centre for Geriatric Care, Toronto, ON M6A 2E1, Canada
    Cereb Cortex 19:305-14. 2009
    ..The results show that for identical sounds, top-down effects on processing "what" and "where" information is observable at about 200 ms after sound onset and involves a widely distributed neural network...
  8. ncbi request reprint Modality-independent processes in cued motor preparation revealed by cortical potentials
    Andreea Oliviana Diaconescu
    Rotman Research Institute of Baycrest Centre, University of Toronto, Toronto, Ontario, Canada
    Neuroimage 42:1255-65. 2008
    ..The effects carried by both patterns showed temporal overlap in the interval between the first and second stimulus presentation, but with differences in their relation to response rule processing and behavioural facilitation...
  9. pmc Extracting message inter-departure time distributions from the human electroencephalogram
    Bratislav Misić
    Rotman Research Institute, Baycrest Centre, Toronto, Ontario, Canada
    PLoS Comput Biol 7:e1002065. 2011
    ..Together, these results suggest that message departure times are indicative of network traffic and capture a novel facet of neural activity...
  10. pmc A multivariate analysis of age-related differences in default mode and task-positive networks across multiple cognitive domains
    Cheryl L Grady
    Rotman Research Institute at Baycrest, Toronto, Ontario, Canada
    Cereb Cortex 20:1432-47. 2010
    ..Increased use of the TPN may reflect greater demand on cognitive control processes in older individuals that may be partially offset by alterations in prefrontal functional connectivity...
  11. doi request reprint ICA-based artifact correction improves spatial localization of adaptive spatial filters in MEG
    Zainab Fatima
    Rotman Research Institute, Baycrest Centre, Toronto, Canada
    Neuroimage 78:284-94. 2013
    ....
  12. pmc Increased brain signal variability accompanies lower behavioral variability in development
    Anthony Randal McIntosh
    Rotman Research Institute of Baycrest Centre, University of Toronto, Toronto, Ontario, Canada
    PLoS Comput Biol 4:e1000106. 2008
    ..Our results suggest that the moment-to-moment variability in brain activity may be a critical index of the cognitive capacity of the brain...
  13. doi request reprint Blood oxygen level-dependent signal variability is more than just noise
    Douglas D Garrett
    Rotman Research Institute, Baycrest, Toronto, Ontario M6A 2E1, Canada
    J Neurosci 30:4914-21. 2010
    ..We suggest that examination of BOLD signal variability may reveal a host of novel brain-related effects not previously considered in neuroimaging research...
  14. pmc Oligodendrocyte genes, white matter tract integrity, and cognition in schizophrenia
    Aristotle N Voineskos
    Kimel Family Translational Imaging Genetics Laboratory, Research Imaging Centre, Centre for Addiction and Mental Health, Toronto, Ontario, Canada
    Cereb Cortex 23:2044-57. 2013
    ....
  15. pmc Identification of a functional connectome for long-term fear memory in mice
    Anne L Wheeler
    Program in Neurosciences and Mental Health, The Hospital for Sick Children, Toronto, Canada
    PLoS Comput Biol 9:e1002853. 2013
    ..This network is concurrently integrated and segregated and therefore has small-world properties, and contains hub-like regions in the prefrontal cortex and thalamus that may play privileged roles in memory expression...
  16. pmc Brain signal variability relates to stability of behavior after recovery from diffuse brain injury
    Anjali Raja Beharelle
    Rotman Research Institute of Baycrest Centre, Toronto, Canada
    Neuroimage 60:1528-37. 2012
    ..Rather than impede neural processing, cortical signal variability within an optimal range enables the exploration of diverse functional configurations, and may therefore play a vital role in healthy brain function...
  17. pmc Semantic information alters neural activation during transverse patterning performance
    Sandra N Moses
    Department of Diagnostic Imaging, Hospital for Sick Children, Toronto, Ontario, Canada
    Neuroimage 46:863-73. 2009
    ..These activation patterns may represent a shift towards reliance upon existing semantic knowledge. This shift likely permits successful TP performance with meaningful stimuli and relations following hippocampal damage...
  18. doi request reprint Characterizing functional integrity: intraindividual brain signal variability predicts memory performance in patients with medial temporal lobe epilepsy
    Andrea B Protzner
    Department of Psychology, University of Calgary, Alberta, Canada
    J Neurosci 33:9855-65. 2013
    ..Furthermore, this measure can be characterized as a robust biomarker in this clinical setting because it reveals the same pattern regardless of cognitive challenge or task engagement during scanning...