Matti Hämäläinen
Professor
Professor
T314 Dept. Neuroscience and Biomedical Engineering
Full researcher profile
https://research.aalto.fi/...
Publikationer
A role for retro-splenial cortex in the task-related P3 network
Diptyajit Das, Marnie E. Shaw, Matti Hämäläinen, Andrew R. Dykstra, Laura Doll, Alexander Gutschalk
2024
Clinical Neurophysiology
No Differences in Auditory Steady-State Responses in Children with Autism Spectrum Disorder and Typically Developing Children
Seppo P. Ahlfors, Steven Graham, Hari Bharadwaj, Fahimeh Mamashli, Sheraz Khan, Robert M. Joseph, Ainsley Losh, Stephanie Pawlyszyn, Nicole M. McGuiggan, Mark Vangel, Matti S. Hämäläinen, Tal Kenet
2023
JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS
Atypical cortical processing of bottom-up speech binding cues in children with autism spectrum disorders
Jussi Alho, Sheraz Khan, Fahimeh Mamashli, Tyler K. Perrachione, Ainsley Losh, Nicole M. McGuiggan, Steven Graham, Zein Nayal, Robert M. Joseph, Matti S. Hämäläinen, Hari Bharadwaj, Tal Kenet
2023
NeuroImage: Clinical
Both stronger and weaker cerebro-cerebellar functional connectivity patterns during processing of spoken sentences in autism spectrum disorder
Jussi Alho, John G. Samuelsson, Sheraz Khan, Fahimeh Mamashli, Hari Bharadwaj, Ainsley Losh, Nicole M. McGuiggan, Steven Graham, Zein Nayal, Tyler K. Perrachione, Robert M. Joseph, Catherine J. Stoodley, Matti S. Hämäläinen, Tal Kenet
2023
Human Brain Mapping
Decreased thalamocortical connectivity in resolved Rolandic epilepsy
Dhinakaran M. Chinappen, Lauren M. Ostrowski, Elizabeth R. Spencer, Hunki Kwon, Mark A. Kramer, Matti S. Hämäläinen, Catherine J. Chu
2023
Clinical Neurophysiology
Sex-related patterns in the electroencephalogram and their relevance in machine learning classifiers
Thomas Jochmann, Marc S. Seibel, Elisabeth Jochmann, Sheraz Khan, Matti S. Hämäläinen, Jens Haueisen
2023
Human Brain Mapping
On the clinical utility of on-scalp MEG : A modeling study of epileptic activity source estimation
Karin Westin, Sándor Beniczky, Christoph Pfeiffer, Matti Hämäläinen, Daniel Lundqvist
2023
Clinical Neurophysiology
Magnetoencephalography and electroencephalography can both detect differences in cortical responses to vibrotactile stimuli in individuals on the autism spectrum
Seppo P. Ahlfors, Steven Graham, Jussi Alho, Robert M. Joseph, Nicole M. McGuiggan, Zein Nayal, Matti S. Hämäläinen, Sheraz Khan, Tal Kenet
2022
Frontiers in Psychiatry
Editorial: Magnetoencephalography: Methodological innovation paves the way for scientific discoveries and new clinical applications
Rafeed Alkawadri, Rei Enatsu, Matti Hämäläinen, Anto Bagić
2022
Frontiers in Neurology
Cortical signatures of auditory object binding in children with autism spectrum disorder are anomalous in concordance with behavior and diagnosis
Hari M. Bharadwaj, Fahimeh Mamashli, Sheraz Khan, Ravinderjit Singh, Robert M. Joseph, Ainsley Losh, Stephanie M. Pawlyszyn, Nicole M. McGuiggan, Steven Graham, Matti S. Hämäläinen, Tal Kenet
2022
PLoS Biology
Functional Significance of Human Resting-State Networks Hubs Identified Using MEG During the Transition From Childhood to Adulthood
Sheraz Khan, Javeria Ali Hashmi, Fahimeh Mamashli, Matti S. Hämäläinen, Tal Kenet
2022
Frontiers in Neurology
Weighted Blind Source Separation Can Decompose the Frequency Mismatch Response by Deviant Concatenation: An MEG Study
Teppei Matsubara, Steven Stufflebeam, Sheraz Khan, Jyrki Ahveninen, Matti S. Hämäläinen, Yoshinobu Goto, Toshihiko Maekawa, Shozo Tobimatsu, Kuniharu Kishida
2022
Frontiers in Neurology
A Novel Approach to Estimating the Cortical Sources of Sleep Spindles Using Simultaneous EEG/MEG
Dimitrios Mylonas, Martin Sjøgård, Zhaoyue Shi, Bryan Baxter, Matti Hämäläinen, Dara S. Manoach, Sheraz Khan
2022
Frontiers in Neurology
Source EEG reveals that Rolandic epilepsy is a regional epileptic encephalopathy
Elizabeth R. Spencer, Dhinakaran Chinappen, Britt C. Emerton, Amy K. Morgan, Matti S. Hämäläinen, Dara S. Manoach, Uri T. Eden, Mark A. Kramer, Catherine J. Chu
2022
NeuroImage: Clinical
Altered maturation and atypical cortical processing of spoken sentences in autism spectrum disorder
Jussi Alho, Hari Bharadwaj, Sheraz Khan, Fahimeh Mamashli, Tyler K. Perrachione, Ainsley Losh, Nicole M. McGuiggan, Robert M. Joseph, Matti S. Hämäläinen, Tal Kenet
2021
Progress in Neurobiology
Rapid computation of TMS-induced E-fields using a dipole-based magnetic stimulation profile approach
Mohammad Daneshzand, Sergey N. Makarov, Lucia I.Navarro de Lara, Bastien Guerin, Jennifer McNab, Bruce R. Rosen, Matti S. Hämäläinen, Tommi Raij, Aapo Nummenmaa
2021
NeuroImage
Contextual MEG and EEG Source Estimates Using Spatiotemporal LSTM Networks
Christoph Dinh, John G. Samuelsson, Alexander Hunold, Matti S. Hämäläinen, Sheraz Khan
2021
Frontiers in Neuroscience
Age-Related EEG Power Reductions Cannot Be Explained by Changes of the Conductivity Distribution in the Head Due to Brain Atrophy
Mingjian He, Feng Liu, Aapo Nummenmaa, Matti S. Hämäläinen, Bradford C. Dickerson, Patrick L. Purdon
2021
Frontiers in Aging Neuroscience
Whole-head OPM-MEG enables noninvasive assessment of functional connectivity
Mainak Jas, Stephanie R. Jones, Matti S. Hämäläinen
2021
Trends in Neurosciences
Influence of unfused cranial bones on magnetoencephalography signals in human infants
Seok Lew, Matti S. Hämäläinen, Seppo P. Ahlfors, Yoshio Okada
2021
Clinical Neurophysiology
Boundary Element Fast Multipole Method for Enhanced Modeling of Neurophysiological Recordings
Sergey N. Makarov, Matti Hämäläinen, Yoshio Okada, Gregory M. Noetscher, Jyrki Ahveninen, Aapo Nummenmaa
2021
IEEE Transactions on Biomedical Engineering
Children with autism spectrum disorder show altered functional connectivity and abnormal maturation trajectories in response to inverted faces
Fahimeh Mamashli, Nataliia Kozhemiako, Sheraz Khan, Adonay S. Nunes, Nicole M. McGuiggan, Ainsley Losh, Robert M. Joseph, Jyrki Ahveninen, Sam M. Doesburg, Matti S. Hämäläinen, Tal Kenet
2021
Autism Research
Synchronization patterns reveal neuronal coding of working memory content
Fahimeh Mamashli, Sheraz Khan, Matti S. Hämäläinen, Mainak Jas, Tommi Raij, Steven Stufflebeam, Aapo Nummenmaa, Jyrki Ahveninen
2021
Cell Reports
A novel time-delayed correlation method decomposes mismatch response without using subtraction
Teppei Matsubara, Steven Stufflebeam, Sheraz Khan, Jyrki Ahveninen, Matti Hämäläinen, Yoshinobu Goto, Toshihiko Maekawa, Shozo Tobimatsu, Kuniharu Kishida
2021
43rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2021
Classification of evoked responses to inverted faces reveals both spatial and temporal cortical response abnormalities in Autism spectrum disorder
Adonay S. Nunes, Fahimeh Mamashli, Nataliia Kozhemiako, Sheraz Khan, Nicole M. McGuiggan, Ainsley Losh, Robert M. Joseph, Jyrki Ahveninen, Sam M. Doesburg, Matti S. Hämäläinen, Tal Kenet
2021
NeuroImage: Clinical
Spatial fidelity of MEG/EEG source estimates: A general evaluation approach
John G. Samuelsson, Noam Peled, Fahimeh Mamashli, Jyrki Ahveninen, Matti S. Hämäläinen
2021
NeuroImage
High-Density EEG in Current Clinical Practice and Opportunities for the Future
Sally M. Stoyell, Janina Wilmskoetter, Mary Ann Dobrota, Dhinakaran M. Chinappen, Leonardo Bonilha, Mark Mintz, Benjamin H. Brinkmann, Susan T. Herman, Jurriaan M. Peters, Serge Vulliemoz, Margitta Seeck, Matti S. Hämäläinen, Catherine J. Chu
2021
Journal of Clinical Neurophysiology
Auditory cues facilitate object movement processing in human extrastriate visual cortex during simulated self-motion: A pilot study
Lucia M. Vaina, Finnegan J. Calabro, Abhisek Samal, Kunjan D. Rana, Fahimeh Mamashli, Sheraz Khan, Matti S. Hämäläinen, Seppo P. Ahlfors, Jyrki Ahveninen
2021
Brain Research
Magnetoencephalography Signal Processing, Forward Modeling, Magnetoencephalography Inverse Source Imaging, and Coherence Analysis
Matti Hämäläinen, Mingxiong Huang, Susan M. Bowyer
2020
Neuroimaging Clinics of North America
Magnetoencephalography source estimation
Matti Hämäläinen
2020
Fifty Years of Magnetoencephalography: Beginnings, Technical Advances, and Applications
Neural activity underlying the detection of an object movement by an observer during forward self-motion: Dynamic decoding and temporal evolution of directional cortical connectivity
N. Kozhemiako, A. S. Nunes, A. Samal, K. D. Rana, F. J. Calabro, M. S. Hämäläinen, S. Khan, L. M. Vaina
2020
Progress in Neurobiology
Distinct Regional Oscillatory Connectivity Patterns During Auditory Target and Novelty Processing
Fahimeh Mamashli, Samantha Huang, Sheraz Khan, Matti S. Hämäläinen, Seppo P. Ahlfors, Jyrki Ahveninen
2020
Brain Topography
New Cognitive Neurotechnology Facilitates Studies of Cortical–Subcortical Interactions
Byoung Kyong Min, Matti S. Hämäläinen, Dimitrios Pantazis
2020
Trends in Biotechnology
Human Neocortical Neurosolver (HNN), a new software tool for interpreting the cellular and network origin of human MEG/EEG data
Samuel A. Neymotin, Dylan S. Daniels, Blake Caldwell, Robert A. McDougal, Nicholas T. Carnevale, Mainak Jas, Christopher Moore, Michael L Hines, Matti Hämäläinen, Stephanie R. Jones
2020
eLife
Epileptic Activity Intrinsically Generated in the Human Cerebellum
Yoshio Okada, Sheraz Khan, Ashley Curran, Banu Ahtam, Matti S. Hämäläinen, Roger D. Traub, Phillip L. Pearl
2020
Annals of Neurology
A computational paradigm for real-time MEG neurofeedback for dynamic allocation of spatial attention
Kunjan D. Rana, Sheraz Khan, Matti S. Hämäläinen, Lucia M. Vaina
2020
BioMedical Engineering OnLine
Detectability of cerebellar activity with magnetoencephalography and electroencephalography
John G. Samuelsson, Padmavathi Sundaram, Sheraz Khan, Martin I. Sereno, Matti S. Hämäläinen
2020
Human Brain Mapping
Individual Resting-State Brain Networks Enabled by Massive Multivariate Conditional Mutual Information
Padmavathi Sundaram, Martin Luessi, Marta Bianciardi, Steven Stufflebeam, Matti Hämäläinen, Victor Solo
2020
IEEE Transactions on Medical Imaging
MNE
Lorenz Esch, Christoph Dinh, Eric Larson, Denis Engemann, Mainak Jas, Sheraz Khan, Alexandre Gramfort, M. S. Hämäläinen
2019
Magnetoencephalography
MEG as an enabling tool in neuroscience
M. S. Hämäläinen, D. Lundqvist
2019
Magnetoencephalography
Multimodal neuroimaging evidence for looser lexico-semantic networks in schizophrenia:Evidence from masked indirect semantic priming
Gina R. Kuperberg, Kirsten Weber, Nathaniel Delaney-Busch, Candida Ustine, Ben Stillerman, Matti Hämäläinen, Ellen Lau
2019
Neuropsychologia
Permutation Statistics for Connectivity Analysis between Regions of Interest in EEG and MEG Data
Fahimeh Mamashli, Matti Hämäläinen, Jyrki Ahveninen, Tal Kenet, Sheraz Khan
2019
Scientific Reports
Cortical Signal Suppression (CSS) for Detection of Subcortical Activity Using MEG and EEG
John G. Samuelsson, Sheraz Khan, Padmavathi Sundaram, Noam Peled, Matti S. Hämäläinen
2019
Brain Topography
Left-lateralized contributions of saccades to cortical activity during a one-back word recognition task
Yu Cherng C. Chang, Sheraz Khan, Samu Taulu, Gina Kuperberg, Emery N. Brown, Matti S. Hämäläinen, Simona Temereanca
2018
Frontiers in Neural Circuits
MNE Scan
Lorenz Esch, Limin Sun, Viktor Klüber, Seok Lew, Daniel Baumgarten, P. Ellen Grant, Yoshio Okada, Jens Haueisen, Matti S. Hämäläinen, Christoph Dinh
2018
Journal of Neuroscience Methods
IFCN-endorsed practical guidelines for clinical magnetoencephalography (MEG)
Riitta Hari, Sylvain Baillet, Gareth Barnes, Richard Burgess, Nina Forss, Joachim Gross, Matti Hämäläinen, Ole Jensen, Ryusuke Kakigi, Mauguiére Francois, Nobukatzu Nakasato, Aina Puce, Gian Luca Romani, Alfons Schnitzler, Samu Taulu
2018
Clinical Neurophysiology
Reply to “Clinical practice guidelines or clinical research guidelines?”
Riitta Hari, Sylvain Baillet, Gareth Barnes, Nina Forss, Joachim Gross, Matti Hämäläinen, Ole Jensen, Ryusuke Kakigi, François Mauguière, Nobukazu Nakasato, Aina Puce, Gian Luca Romani, Alfons Schnitzler, Samu Taulu
2018
Clinical Neurophysiology
A reproducible MEG/EEG group study with the MNE software
Mainak Jas, Eric Larson, Denis A. Engemann, Jaakko Leppäkangas, Samu Taulu, Matti Hämäläinen, Alexandre Gramfort
2018
Frontiers in Neuroscience
Maturational trajectories of local and long-range functional connectivity in autism during face processing
Fahimeh Mamashli, Sheraz Khan, Hari Bharadwaj, Ainsley Losh, Stephanie M. Pawlyszyn, Matti S. Hämäläinen, Tal Kenet
2018
Human Brain Mapping
Localizing on-scalp MEG sensors using an array of magnetic dipole coils
Christoph Pfeiffer, Lau M. Andersen, Daniel Lundqvist, Matti Hämäläinen, Justin F. Schneiderman, Robert Oostenveld
2018
PloS one
Improving the nulling beamformer using subspace suppression
Kunjan D. Rana, Matti S. Hämäläinen, Lucia M. Vaina
2018
FRONTIERS IN COMPUTATIONAL NEUROSCIENCE
Noise cancellation for a whole-head magnetometer-based MEG system in hospital environment
Limin Sun, Matti S. Hämäläinen, Yoshio Okada
2018
Biomedical Physics & Engineering Express
Similarities and differences between on-scalp and conventional in-helmet magnetoencephalography recordings
Lau M. Andersen, Robert Oostenveld, Christoph Pfeiffer, Silvia Ruffieux, Veikko Jousmäki, Matti Hämäläinen, Justin F. Schneiderman, Daniel Lundqvist
2017
PloS one
Sparsity enables estimation of both subcortical and cortical activity from MEG and EEG
Pavitra Krishnaswamy, Gabriel Obregon-Henao, Jyrki Ahveninen, Sheraz Khan, Behtash Babadi, Juan Eugenio Iglesias, Matti S. Hämäläinen, Patrick L. Purdon
2017
Proceedings of the National Academy of Sciences of the United States of America
Auditory processing in noise is associated with complex patterns of disrupted functional connectivity in autism spectrum disorder
Fahimeh Mamashli, Sheraz Khan, Hari Bharadwaj, Konstantinos Michmizos, Santosh Ganesan, Keri Lee A Garel, Javeria Ali Hashmi, Martha R. Herbert, Matti Hämäläinen, Tal Kenet
2017
Autism Research
Benchmarking for On-Scalp MEG Sensors
Minshu Xie, Justin F. Schneiderman, Maxim L. Chukharkin, Alexei Kalabukhov, Bushra Riaz, Daniel Lundqvist, Stephen Whitmarsh, Matti Hämäläinen, Veikko Jousmäki, Robert Oostenveld, Dag Winkler
2017
IEEE Transactions on Biomedical Engineering
Interacting parallel pathways associate sounds with visual identity in auditory cortices
Jyrki Ahveninen, Samantha Huang, Seppo P. Ahlfors, Matti Hämäläinen, Stephanie Rossi, Mikko Sams, Iiro Jääskeläinen
2016
NeuroImage
Altered onset response dynamics in somatosensory processing in autism spectrum disorder
Sheraz Khan, Javeria A. Hashmi, Fahimeh Mamashli, Hari M. Bharadwaj, Santosh Ganesan, Konstantinos P. Michmizos, Manfred G. Kitzbichler, Manuel Zetino, Keri Lee A Garel, Matti S. Hämäläinen, Tal Kenet
2016
Frontiers in Neuroscience
Neural mechanisms of transient neocortical beta rhythms
Maxwell A. Sherman, Shane Lee, Robert Law, Saskia Haegens, Catherine A. Thorn, Matti Hämäläinen, Christopher I. Moore, Stephanie R. Jones
2016
Proceedings of the National Academy of Sciences of the United States of America
Basic principles of magnetoencephalography (MEG)
Riitta Hari, Lauri Parkkonen, Matti Hämäläinen
2015
Brain Mapping: An Encyclopedic Reference
Somatosensory cortex functional connectivity abnormalities in autism show opposite trends, depending on direction and spatial scale
Sheraz Khan, Konstantinos Michmizos, Mark Tommerdahl, Santosh Ganesan, Manfred G. Kitzbichler, Manuel Zetino, Keri-Lee A. Garel, Martha R. Herbert, Matti S. Hamalainen, Tal Kenet
2015
Brain
MNE-Python
Alexandre Gramfort, Denis Engeman, Eric Larson, Martin Luessi, Christian Brodbeck, Mainak Jas, Teon Brooks, Daniel Strohmeier, Roman Goj, M. van Vliet, Alan Leggitt, B. Billinger, Hari Bharadwaj, Lauri Parkkonen, Matti Hämäläinen
2014
MNE software for processing MEG and EEG data
Alexandre Gramfort, Martin Luessi, Eric Larson, Denis A. Engemann, Daniel Strohmeier, Christian Brodbeck, Lauri Parkkonen, Matti Hämäläinen
2014
NeuroImage
MEG and EEG data analysis with MNE-Python
A Gramfort, M Luessi, E Larson, D.A Engemann, D Strohmeier, C. Brodbeck, R Goj, M Jas, T Brooks, L Parkkonen, M. Hämäläinen
2013
Frontiers in Neuroscience
Synchrony of brains and bodies during implicit interpersonal interaction
Riitta Hari, Tommi Himberg, Lauri Nummenmaa, Matti Hämäläinen, Lauri Parkkonen
2013
TRENDS in Cognitive Sciences
Comparison of spherical and realistically shaped boundary element head models for transcranial magnetic stimulation navigation
Aapo Nummenmaa, Matti Stenroos, Risto J. Ilmoniemi, Yoshio C. Okada, Matti S. Hämäläinen, Tommi Raij
2013
Clinical Neurophysiology
Dissociable influences of auditory object vs. spatial attention on visual system oscillatory activity
J. Ahveninen, I.P. Jääskeläinen, John W. Belliveau, M. Hämäläinen, F-H. Lin, T. Raij
2012
PloS one
Attention-driven auditory cortex short-term plasticity helps segregate relevant sounds from noise
Jyrki Ahveninen, Matti Hämäläinen, Iiro P. Jääskeläinen, Seppo P. Ahlfors, Samantha Huang, Fa-Hsuan Lin, Tommi Raij, Mikko Sams, Christos E. Vasios, John W. Belliveau
2011
Proceedings of the National Academy of Sciences of the United States of America
Localization of cortical phase and amplitude dynamics during visual working memory encoding and retention
Satu Palva, Shrikanth Kulashekhar, Matti Hämäläinen, J. Matias Palva
2011
JOURNAL OF NEUROSCIENCE
Dynamical statistical modeling of physiological noise for fast BOLD fMRI
S. Särkkä, A. Nummenmaa, A. Solin, A. Vehtari, T. Witzel, T. Auranen, S. Vanni, M.S. Hämäläinen, F-H. Lin
2011
ISMRM 19th Annual Meeting & Exhibition, 7-13 May 2011, Montreal
Time dependent regularization for functional magnetic resonance inverse imaging
A Nummenmaa, M.S. Hämäläinen, F-H Lin
2010
Joint Annual Meeting ISMRM-ESMRMB 2010, Stockholm, Sweden, 1-7 May, 2010
Multimodal functional imaging using fMRI-informed regional EEG/MEG source estimation
Wanmei Ou, Aapo Nummenmaa, Jyrki Ahveninen, John W. Belliveau, Matti S. Hämäläinen, Polina Golland
2010
NeuroImage
Onset timing of cross-sensory activations and multisensory interactions in auditory and visual sensory cortices
Tommi Raij, Jyrki Ahveninen, Fa-Hsuan Lin, Thomas Witzel, Iiro Jääskeläinen, Benjamin Letham, Emily Israeli, Cherif Sahyoun, Christos Vasios, Steven Stufflebeam, Matti Hämäläinen, John Belliveau
2010
European Journal of Neuroscience
Automatic fMRI-guided MEG multidipole localization for visual responses
Toni Auranen, Aapo Nummenmaa, Simo Vanni, Aki Vehtari, Matti S. Hämäläinen, Jouko Lampinen, Iiro P. Jääskeläinen
2009
Human Brain Mapping
Study of neurovascular coupling in humans via simultaneous magnetoencephalography and diffuse optical imaging acquisition
WM. Ou, Ilkka Nissilä, H. Radhakrishnan, DA. Boas, M.S. Hämäläinen, MA. Franceschini
2009
NeuroImage
Early visual brain areas reflect the percept of an ambiguous scene
Lauri Parkkonen, Jesper Andersson, Matti Hämäläinen, Riitta Hari
2008
Proceedings of the National Academy of Sciences of the United States of America
Parallel input makes the brain run faster
Tommi Raij, Jari Karhu, Dubravko Kicic, Pantelis Lioumis, Petro Julkunen, Fa-Hsuan Lin, Jyrki Ahveninen, Risto J. Ilmoniemi, Jyrki P. Mäkelä, Matti Hämäläinen, Bruce R. Rosen, John W. Belliveau
2008
NeuroImage
Automatic fMRI-guided MEG multidipole localization for visual responses
T. Auranen, A. Nummenmaa, S. Vanni, A. Vehtari, M.S. Hämäläinen, J. Lampinen, I.P. Jääskeläinen
2007
Bayesian inverse analysis of neuromagnetic data using cortically constrained multiple dipoles
Toni Auranen, Aapo Nummenmaa, Matti S. Hämäläinen, Iiro P. Jääskeläinen, Jouko Lampinen, Aki Vehtari, Mikko Sams
2007
Human Brain Mapping
Automatic relevance-determination based on hierarchical Bayesian MEG inversion in practice
Aapo Nummenmaa, Toni Auranen, Matti S. Hämäläinen, Iiro P. Jääskeläinen, Mikko Sams, Aki Vehtari, Jouko Lampinen
2007
NeuroImage
Hierarchical Bayesian estimates of distributed MEG sources: theoretical aspects and comparison of variational and MCMC methods
Aapo Nummenmaa, Toni Auranen, Matti S. Hämäläinen, Iiro P. Jääskeläinen, Jouko Lampinen, Mikko Sams, Aki Vehtari
2007
NeuroImage
Sparse MEG inverse solutiona via hierarchical Bayesian modeling: Evaluation with a parallel fMRI study
Aapo Nummenmaa, Toni Auranen, Simo Vanni, Matti S. Hämäläinen, Iiro P. Jääskeläinen, Jouko Lampinen, Aki Vehtari, Mikko Sams
2007
Reature-specific selective attention modulates the "what" and "where" pathways in human auditory cortex
Jyrki Ahveninen, Iiro P. Jääskeläinen, T. Raij, G. Bonmassar, S. Devere, M. Hämäläinen, S. Levänen, F.H. Lin, M. Sams, B. Shinn-Cunningham, T. Witzel, John W. Belliveau
2006
Task-modulated "what" and "where" pathways in human auditory cortex
Jyrki Ahveninen, Iiro P. Jääskeläinen, Tommi Raij, Giorgio Bonmassar, D. Sasha, Matti S. Hämäläinen, Sari Levänen, F. Lin, M. Sams, B. Shinn-Cunningham, T. Witzel, J. Bellieau
2006
Proceedings of the National Academy of Sciences of the United States of America
Cortically constrained neuromagnitic inverse analysis: structure of Bayesian multidipolar solutions and effects of MEG-MRI coregistration error
Toni Auranen, Aapo Nummenmaa, Matti S. Hämäläinen, Iiro P. Jääskeläinen, Jouko Lampinen, Aki Vehtari, Mikko Sams
2006
Inverse estimates of basic auditory and visual MEG responses by hierarchical Variational Bayesian approach
Aapo Nummenmaa, Toni Auranen, Matti S. Hämäläinen, Iiro P. Jääskeläinen, Jouko Lampinen, Mikko Sams, Aki Vehtari
2006
Bayesian analysis of the neuromagnetic inverse problem with l^p -norm priors
Toni Auranen, Aapo Nummenmaa, Matti S. Hämäläinen, Iiro P. Jääskeläinen, Jouko Lampinen, Aki Vehtari, Mikko Sams
2005
NeuroImage
Visualizing human brain surface from T1-weighted MR images using texture-mapped triangle meshes
Mika Seppä, Matti Hämäläinen
2005
NeuroImage
Full Bayesian Analysis of the MEG Inverse Problem with 1 p-norm Priors
T. Auranen, A. Nummenmaa, M.S. Hämäläinen, I.P. Jääskeläinen, J. Lampinen, A. Vehtari, M. Sams
2004
Are posterior auditory-cortex neurons tuned to sound location in humans?
I.P. Jääskeläinen, J. Ahveninen, T. Raij, G. Bonmassar, S. Devore, M. Hämäläinen, S. Levänen, FH. Lin, M. Sams, B. Shinn-Cunningham, JW. Belliveau
2004
A Hierarchical Bayesian Approach in distributed MEG source Modelling
A. Nummenmaa, T. Auranen, M.S. Hämäläinen, I.P. Jääskeläinen, J. Lampinen, M. Sams, A. Vehtari
2004
Modulation of oscillatory MEG activity in 8 - 13 Hz and 4 - 7 Hz bands to visual-spatial working memory task in OCD patients and healthy controls
Kristiina Ciesielski, Seppo Ahlfors, Matti Hämäläinen, Paul Lesnik, Julia Stephen, Dan Geller, Steven Stufflebeam
2002
13th International Conference on Biomagnetism, Jena, Germany, August 10-14, 2002
New six-layer magnetically-shielded room for MEG
D. Cohen, U. Schläpfer, Seppo Ahlfors, Matti Hämäläinen, Erik Halgren
2002
13th International Conference on Biomagnetism, jena, Germany, August 10-14, 2002
Magnetoencephalographic characterization of dynamic brain activation: Basic principles and methods of data collection and source analysis
Matti Hämäläinen, Riitta Hari
2002
Brain Mapping: The Methods
Phantom tests of SSP noise compensation in magnetocardiographic recordings
Milla Karvonen, Jukka Nenonen, Matti Hamalainen, Lauri Parkkonen, Mario Liehr, Jorg Schreiber, Juha Montonen, Jens Haueisen, Toivo Katila
2002
Spatiotemporal mapping of cortical oscillations
Thomas Witzel, Steven Stufflebeam, Fa-Hsuan Lin, Matti Hämäläinen, Erik Halgren, Anders Dale
2002
13th International Conference on Biomagnetism (BIOMAG2002), Jena, Germany, August 10-14,2002
Dynamic imaging of coherent sources: Studying neural interactions in the human brain
Joachim Gross, J. Kujala, M. Hämäläinen, L. Timmermann, Alfons Schnitzler, R. Salmelin
2001
Proceedings of the National Academy of Sciences of the United States of America
Tomographic mapping of functional connectivities from MEG recordings
Joachim Gross, Jan Kujala, Matti Hämäläinen, Lars Timmermann, Alfons Schnitzler, Riitta Salmelin
2001
NeuroImage
Magnetic source imaging
Matti Hämäläinen, Jukka Nenonen
2001
Engineering Superconductivity
Three-dimensional integration of brain anatomy and function to facilitate intraoperative navigation around the sensorimotor strip
Jyrki Mäkelä, Erika Kirveskari, Mika Seppä, Matti Hämäläinen, Nina Forss, Sari Avikainen, Oili Salonen, Stephan Salenius, Tero Kovala, Tarja Randell, Juha Jääskeläinen, Riitta Hari
2001
Human Brain Mapping
Correcting for head movements in MEG inverse problem
Kimmo Uutela, Matti Hämäläinen
2001
12th International Conference on Biomagnetism, Helsinki University of Technology, Espoo, Finland, August 13-17,2000
Detecting and correcting for head movements in neuromagnetic measurements
Kimmo Uutela, Samu Taulu, Matti Hämäläinen
2001
NeuroImage
Magnetoencephalography (MEG) in the stereotactic radiation therapy treatment planning of intracranial lesions
E. Kirveskari, T. Tanskanen, S. Vanni, M. Hämäläinen, M. Tenhunen, M. Kouri, T. Joensuu, J. Jääskeläinen, N. Forss
2000
12th International Conference on Biomagnetism, Helsinki University of Technology, Espoo, Finland, August 13-17, 2000
MEG source visualization with texture-mapped triangle meshes
M. Seppä, M. Hämäläinen
2000
Correcting for head movements in MEG inverse problem
K. Uutela, M. Hämäläinen
2000
Global optimization in the localization of brain activity
K Uutela, M. Hämäläinen, R Salmelin
2000
BIOMAG 96
Independent component approach to the analysis of EEG and MEG recordings
R. Vigário, J. Särelä, V. Jousmäki, M. Hämäläinen, E. Oja
2000
IEEE Transactions on Biomedical Engineering
Estimation of neuromagnetic field patterns in the presence of external disturbances
M.S. Hämäläinen
1999
Magnetic source imaging
M.S. Hämäläinen, J.T. Nenonen
1999
Wiley Encyclopedia of Electrical and Electronics Engineering, vol. 12
Experiments on interference suppression in MEG measurements
L Parkkonen, J. Simola, M. Kajola, M. Hämäläinen, A. Ahonen
1999
Visualization of magnetoencephalographic data using minimum current estimates
Kimmo Uutela, Matti Hämäläinen, Erkki Somersalo
1999
NeuroImage
An integrated MEG-EEG system for clinical studies
M. Hämäläinen
1998
Finnish-Japanese Symposium, Otaniemi, 14.-17.6.1998
Focal and diffuse source models in MEG studies
M. Hämäläinen
1998
9th Wold Congress of the International Organization of Psychophysiology (IOP), Taormina, Sicily, Italy, 14.-19.9.1998
Focal source models in MEG studies
M. Hämäläinen
1998
13th National Biomagnetism Conference, Tokio, Japan, 23.-25.5.1998
Neuromagnetic imaging of brain function
M. Hämäläinen
1998
9th Wold Congress of the International Organization of Psychophysiology (IOP), Taormina, Sicily, Italy, 14.-19.9.1998
Three-dimensional imaging of functional brain anatomy facilitating peroperative navigation around the somatomotor strip
Erika Kirveskari, M. Seppä, M. Hämäläinen, N. Forss, J. Mäkelä, Sari Avikainen, O. Salonen, Tero Kovala, Stephan Salenius, Jarmo Jääskeläinen, R. Hari
1998
Global optimization in the localization of neuromagnetic sources
Kimmo Uutela, Matti Hämäläinen, Riitta Salmelin
1998
IEEE Transactions on Biomedical Engineering
Independent Component Analysis for Identification of Artifacts in Magnetoencephalographic Recordings
R. Vigário, V. Jousmäki, M. Hämäläinen, R. Hari, E. Oja
1998
An integrated MEG-EEG system for clinical studies
M. Hämäläinen
1997
Noninvasive Functional Source Imaging 1997
Modeling aspects of combined EEG and MEG data
M. Hämäläinen
1997
1st European Workshop on Neuroinformatics & Business meeting for the ECHBD consortium, Nobel Forum, Karolinska Institute, Sweden, September 11-13,1997
Software aspects in biomagnetism
Matti S. Hämäläinen, M.J. Kajola, L.T. Parkkonen, M.T. Seppä
1997
Extended abstracts, Volume 1, Plenary contributions
Comparison of spherical and realistically shaped conductor models in magnetoencephalography
A. Tarkiainen, M. Hämäläinen, R. Salmelin
1997
International Journal of Psychophysiology
Spatial and temporal visualization of magnetoencephalographic data using minimum-current estimates
K.H. Uutela, M.S. Hämäläinen, Erkki Somersalo
1997
Activation of human mesial cortex during somatosensory target detection task
N. Forss, I. Merlet, S. Vanni, M. Hämäläinen, F. Mauguire, R. Hari
1996
Brain Research
Activation of human mesial cortex during somatosensory target detection task
N. Forss, I. Merlet, S. Vanni, M. Hämäläinen, F. Mauquiere, R. Hari
1996
26th Annual Meeting of Society for Neuroscience
Dynamics of human cerebellar activation during visually-guided saccades
V. Jousmäki, M. Hämäläinen, R. Hari
1996
Magnetic source imaging during a visually guided task
V. Jousmäki, M. Hämäläinen, R. Hari
1996
Neuroreport
Noninvasive detection of human cerebellar activity accociated with visually-quided saccades
V. Jousmäki, M. Hämäläinen, R. Hari
1996
Noninvasive detection of human cerebellar activity associated with visually-guided saccades
V. Jousmäki, M. Hämäläinen, R. Hari
1996
Information processing in the human brain: Magnetoencephalographic approach
Olli V. Lounasmaa, Matti Hämäläinen, Riitta Hari, Riitta Salmelin
1996
Proceedings of the National Academy of Sciences of the United States of America
Magnetocardiographic Functional Imaging Studies in BioMag Laboratory
J. Montonen, A. Ahonen, M. Hämäläinen, R. Ilmoniemi, P. Laine, J. Nenonen, M. Paavola, K. Simelius, J. Simola, T. Katila
1996
Global optimization in the localization of brain activity
K. Uutela, M. Hämäläinen, R. Salmelin
1996
Global optimization in the localization of brain activity
K. Uutela, M. Hämäläinen, R. Salmelin
1996
Do auditory stimuli activate human parietal brain regions, Letter to the Editor
M. Hämäläinen, R. Hari, O. Lounasmaa, S. Williamson
1995
Neuroreport
Functional localization based on measurements with a whole-head magnetometer system
M. Hämäläinen
1995
Brain Topography
MEG burst supression in an anaesthetized dog
V. Jäntti, G. Baer, A. Yli-Hankala, M. Hämäläinen, R. Hari
1995
Acta Anaesthesiologica Scandinavica
Visual cortex activation in blind humans during sound discrimination
T. Kujala, M. Huotilainen, J. Sinkkonen, A. Ahonen, K. Alho, M. Hämäläinen, R Ilmoniemi, M. Kajola, Jukka Knuutila, J. Lavikainen, O. Salonen, J. Simola, C. Standertskjöld-Nordenstam, H. Tiitinen, Satu Tissari, R. Näätänen
1995
Neuroscience Letters
Dipole modelling of MEG rhythms in time and frequency domains
R. Salmelin, M. Hämäläinen
1995
Brain Topography
Functional segreation of movement-related rhythmic activity in the human brain
R. Salmelin, M. Hämäläinen, M. Kajola, R. Hari
1995
NeuroImage
Effects of intensity variation on human auditory evoked magnetic fields
J. Vasama, J. Mäkelä, S. Tissari, M. Hämäläinen
1995
Acta Oto-Laryngologica
Activation of the human posterior parietal cortex by median nerve stimulation
N. Forss, R. Hari, R. Salmelin, A. Ahonen, M. Hämäläinen, M. Kajola, J. Knuutila, J. Simola
1994
Experimental Brain Research
Use of a computerized brain atlas in magnetoencephalo-graphic activation studies
T. Greitz, C. Bohm, E. Hellstrand, M. S. Hämäläinen, R. Hari, Risto J. Iimoniemi, R. Seitz, O. V. Lounasmaa
1994
Neuroreport
Functional localization based on measurements with a whole-head magnetometer system
M. Hämäläinen
1994
5th International Congress International Society for Brain Electromagnetic Topography, Münster, Germany, 2.-6.8.1994
Interpreting magnetic fields of the brain: Minimum norm estimates
M. Hämäläinen, R. Ilmoniemi
1994
Medical & Biological Engineering & Computing
MEG - A tool for functional brain imaging
M. Hämäläinen, R. Hari, R. Ilmoniemi, J. Knuutila, O. Lounasmaa
1994
Bat-Sheva Seminar on Functional Brain Imaging, Tel-Aviv, Israel, 5.-10.6.1994
Effect of interaural time differences on middle-latency and late auditory evoked magnetic fields
L. McEvoy, J. Mäkelä, M. Hämäläinen, R. Hari
1994
Hearing Research
Whole-head mapping of middle-latency auditory evoked magnetic fields
J. Mäkelä, M. Hämäläinen, R. Hari, L. McEvoy
1994
Electroencephalography and Clinical Neurophysiology
Minimum-norm estimation in a boundary-element torso model
J. Nenonen, M. Hämäläinen, R. Ilmoniemi
1994
Medical & Biological Engineering & Computing
Magnetoencephalographic evaluation of children and adolescents with intractable epilepsy
R. Paetau, M. Hämäläinen, R. Hari, Matti Kajola, J. Karhu, T. Larsen, E. Lindahl, O. Salonen
1994
Epilepsia
Mototropic organization of human cortical 20-Hz oscillations
R. Salmelin, R. Hari, M. Hämäläinen, M. Kajola
1994
122-channel SQUID instrument for investigating the magnetic signals from the human brain
Antti I. Ahonen, Matti Hämäläinen, Matti Kajola, Jukka Knuutila, Petteri Laine, Olli V. Lounasmaa, Lauri Parkkonen, Juha Simola, Claudia D. Tesche
1993
Physica Scripta
Sampling theory for neuromagnetic detector arrays
A. Ahonen, M.S. Hämäläinen, R Ilmoniemi, M.J. Kajola, J.E. Knuutila, J.T. Simola, V.A. Vilkman
1993
IEEE Transactions on Biomedical Engineering
Functional organization of the human first and second somatosensory cortices: a neuromagnetic study
R. Hari, J. Karhu, M. Hämäläinen, J. Knuutila, O. Salonen, M. Sams, V. Vilkman
1993
European Journal of Neuroscience
Parietal epileptic mirror focus detected with a whole-head neuromagnetometer
Riitta Hari, Antti Ahonen, Nina Forss, Marja-Liisa Granström, Matti Hämäläinen, Matti Kajola, Jukka Knuutila, Olli V. Lounasmaa, Jyrki P. Mäkelä, Ritva Paetau, Riitta Salmelin, Juha Simola
1993
Neuroreport
A 122-channel neuromagnetometer covering the whole-head
M. Hämäläinen, A.I. Ahonen, M.J. Kajola, J.T. Simola, V.A. Vilkman
1993
Magnetoencephalography - theory, instrumentation, and applications to noninvasive studies of the working human brain
M. Hämäläinen, R. Hari, Risto Ilmoniemi, J. Knuutila, O.V. Lounasmaa
1993
Reviews of Modern Physics
Source analysis of the brain's electromagnetic signals
M. Hämäläinen
1993
The Second Ragnar Granit Symposium, Tampere, 22.-23.11.1993
A 122-Channel Whole-Cortex SQUID System for Measuring the Brains Magnetic Fields
Jukka Knuutila, Antti I. Ahonen, Matti Hämäläinen, Matti Kajola, Petteri Laine, Lauri Parkkonen, Olli V. Lounasmaa, Juha Simola, Claudia D. Tesche
1993
IEEE Transactions on Magnetics
A 122-channel neuromagnetometer covering the whole head
P. Laine, A. Ahonen, M. Hämäläinen, M. Kajola, J. Knuutila, Lauri Parkkonen, J. Simola, V. Vilkman
1993
Whole-head neuromagnetic recordings of responses to deviant auditory stimuli
S. Levänen, A. Ahonen, M. Hämäläinen, R. Hari, O.V. Lounasmaa, J.P. Mäkelä, L. McEvoy, P.J. Pardo, M. Sams
1993
Functional differences between auditory cortices of the two hemispheres revealed by whole-head neuromagnetic recordings
J. Mäkelä, A. Ahonen, M. Hämäläinen, R. Hari, R. Ilmoniemi, M. Kajola, J. Knuutila, O. Lounasmaa, L. McEvoy, R. Salmelin, O. Salonen
1993
Human Brain Mapping
Human auditory cortical mechanisms of sound lateralization: I. Interaural time differences within sound
M. Sams, M. Hämäläinen, R. Hari, L. McEvoy
1993
Hearing Research
Sources of auditory evoked fields superiposed on 3D-MRI reconstruction of temporal lobes
S. Tissari, M.S. Hämäläinen, R. Hari, J.P. Mäkelä
1993
Cortical alpha-frequency oscillations evoked by visual pattern stimuli
S. Ahlfors, R. Ilmoniemi, M. Hämäläinen
1992
Biomagnetism: Clinical aspects
Estimates of visually evoked cortical currents
Seppo Ahlfors, Seppo Ilmoniemi, Matti Hämäläinen
1992
Electroencephalography and Clinical Neurophysiology
Sampling theory for neuromagnetic detector arrays
Antti I. Ahonen, M. Hämäläinen, R. Ilmoniemi, Matti Kajola, Jukka Knuutila, Juha Simola, Visa Vilkman
1992
Differentation between magnetic signals from human SI and SII cortices
R. Hari, M. Hämäläinen, J. Karhu
1992
Magnetoencephalography: a tool for functional brain imaging
M. Hämäläinen
1992
Brain Topography
The use of magnetoencephalography in brain imaging
M. Hämäläinen
1992
3rd International Congress on Brain Electromagnetic Topography, Amsterdam, Hollanti, 9.-12.6.1992
Minimum-norm estimation in a boundary element torso model
J. Nenonen, M. Hämäläinen, R. Ilmoniemi
1992
MEG versus EEG localization test
Riitta Hari, Matti Hämäläinen, Risto Ilmoniemi, Olli V. Lounasmaa
1991
Annals of Neurology
Seeing faces activates three separate areas outside the occipital visual cortex in man
S. T. Lu, M. S. Hämäläinen, R. Hari, R. J. Ilmoniemi, O. V. Lounasmaa, M. Sams, V. Vilkman
1991
Neuroscience
Auditory attention affects two different areas in the human supratemporal cortex
Josi Rif, Riitta Hari, Matti S. Hämäläinen, Mikko Sams
1991
Electroencephalography and Clinical Neurophysiology
Cortical activity elicited by changes in auditory stimuli
M. Sams, E. Kaukoranta, Matti Hämäläinen, R. Naatanen
1991
Psychophysiology
Seeing speech
Mikko Sams, Reijo Aulanko, Matti Hämäläinen, Riitta Hari, Olli V. Lounasmaa, Sing Teh Lu, Juha Simola
1991
Neuroscience Letters
Separate finger representations at the human second somatosensory cortex
R. Hari, H. Hämäläinen, Matti Hämäläinen, J. Kekoni, M. Sams, J. Tiihonen
1990
Neuroscience
Neuromagnetic steady-state responses to auditory stimuli
Rütta Hari, Matti Hämäläinen, Sirkka-Liisa Joutsiniemi
1989
Journal of the Acoustical Society of America
Reactions of human auditory cortex to a change in tone duration
E. Kaukoranta, M. Sams, R. Hari, Matti Hämäläinen, R. Näätänen
1989
Hearing Research
Cerebral neuromagnetic responses evoked by short auditory stimuli
M. Sams, Matti Hämäläinen, A. Antervo, E. Kaukoranta, K. Reinikainen, R. Hari
1985
Electroencephalography and Clinical Neurophysiology
Responses of the primary auditory cortex to pitch changes in a sequence of tone pips
Riitta Hari, Matti Hämäläinen, R. Ilmoniemi, E. Kaukoranta, K. Reinikainen, K. Alho, R. Näätänen, M. Sams, J. Salminen
1984
Neuroscience Letters