Now showing items 1-10 of 10

    • Altered Onset Response Dynamics in Somatosensory Processing in Autism Spectrum Disorder 

      Khan, Sheraz; Hashmi, Javeria A.; Mamashli, Fahimeh; Bharadwaj, Hari M.; Ganesan, Santosh; Michmizos, Konstantinos P.; Kitzbichler, Manfred G.; Zetino, Manuel; Garel, Keri-Lee A.; Hämäläinen, Matti S.; Kenet, Tal (Frontiers Media S.A., 2016)
      Abnormalities in cortical connectivity and evoked responses have been extensively documented in autism spectrum disorder (ASD). However, specific signatures of these cortical abnormalities remain elusive, with data pointing ...
    • Auditory Conflict Resolution Correlates with Medial–Lateral Frontal Theta/Alpha Phase Synchrony 

      Huang, Samantha; Rossi, Stephanie; Hämäläinen, Matti; Ahveninen, Jyrki (Public Library of Science, 2014)
      When multiple persons speak simultaneously, it may be difficult for the listener to direct attention to correct sound objects among conflicting ones. This could occur, for example, in an emergency situation in which one ...
    • Differences in cortical response to acupressure and electroacupuncture stimuli 

      Witzel, Thomas; Napadow, Vitaly J.; Kettner, Norman W; Vangel, Mark G.; Hamalainen, Matti S.; Dhond, Rupali P (Springer Nature, 2011)
      Background FMRI studies focus on sub-cortical effects of acupuncture stimuli. The purpose of this study was to assess changes in primary somatosensory (S1) activity over the course of different types of acupuncture ...
    • Different Cortical Dynamics in Face and Body Perception: An MEG study 

      Meeren, Hanneke K. M.; de Gelder, Beatrice; Ahlfors, Seppo P.; Hämäläinen, Matti S.; Hadjikhani, Nouchine (Public Library of Science, 2013)
      Evidence from functional neuroimaging indicates that visual perception of human faces and bodies is carried out by distributed networks of face and body-sensitive areas in the occipito-temporal cortex. However, the dynamics ...
    • Early Preferential Responses to Fear Stimuli in Human Right Dorsal Visual Stream - A Meg Study 

      Meeren, Hanneke K. M.; Hadjikhani, Nouchine; Ahlfors, Seppo P.; Hämäläinen, Matti S.; de Gelder, Beatrice (Nature Publishing Group, 2016)
      Emotional expressions of others are salient biological stimuli that automatically capture attention and prepare us for action. We investigated the early cortical dynamics of automatic visual discrimination of fearful body ...
    • EEG functional connectivity is partially predicted by underlying white matter connectivity 

      Chu, Catherine Jean; Tanaka, Naoaki; Diaz, J.; Edlow, Brian Lewis; Wu, Ona; Hamalainen, Matti S.; Stufflebeam, Steven Marshall; Cash, Sydney S.; Kramer, M.A. (Elsevier BV, 2015)
      Over the past decade, networks have become a leading model to illustrate both the anatomical relationships (structural networks) and the coupling of dynamic physiology (functional networks) linking separate brain regions. ...
    • Encoding Cortical Dynamics in Sparse Features 

      Khan, Sheraz; Lefèvre, Julien; Baillet, Sylvain; Michmizos, Konstantinos P.; Ganesan, Santosh; Kitzbichler, Manfred G.; Zetino, Manuel; Hämäläinen, Matti S.; Papadelis, Christos; Kenet, Tal (Frontiers Media S.A., 2014)
      Distributed cortical solutions of magnetoencephalography (MEG) and electroencephalography (EEG) exhibit complex spatial and temporal dynamics. The extraction of patterns of interest and dynamic features from these cortical ...
    • A fast statistical significance test for baseline correction and comparative analysis in phase locking 

      Rana, Kunjan D.; Vaina, Lucia M.; Hämäläinen, Matti S. (Frontiers Media S.A., 2013)
      Human perception, cognition, and action are supported by a complex network of interconnected brain regions. There is an increasing interest in measuring and characterizing these networks as a function of time and frequency, ...
    • MEG and EEG data analysis with MNE-Python 

      Gramfort, Alexandre; Luessi, Martin; Larson, Eric; Engemann, Denis A.; Strohmeier, Daniel; Brodbeck, Christian; Goj, Roman; Jas, Mainak; Brooks, Teon; Parkkonen, Lauri; Hämäläinen, Matti (Frontiers Media S.A., 2013)
      Magnetoencephalography and electroencephalography (M/EEG) measure the weak electromagnetic signals generated by neuronal activity in the brain. Using these signals to characterize and locate neural activation in the brain ...
    • Normal Evoked Response to Rapid Sequences of Tactile Pulses in Autism Spectrum Disorders 

      Ganesan, Santosh; Khan, Sheraz; Garel, Keri-Lee A.; Hämäläinen, Matti S.; Kenet, Tal (Frontiers Media S.A., 2016)
      Autism spectrum disorder (ASD) is a developmental disorder diagnosed behaviorally, with many documented neurophysiological abnormalities in cortical response properties. While abnormal sensory processing is not considered ...