Search Results - "Seppä, Mika"

Functional subdivision of group-ICA results of fMRI data collected during cinema viewing by Pamilo, Siina, Malinen, Sanna, Hlushchuk, Yevhen, Seppä, Mika, Tikka, Pia, Hari, Riitta

“…Independent component analysis (ICA) can unravel functional brain networks from functional magnetic resonance imaging (fMRI) data. The number of the estimated…”
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Listening to an audio drama activates two processing networks, one for all sounds, another exclusively for speech by Boldt, Robert, Malinen, Sanna, Seppä, Mika, Tikka, Pia, Savolainen, Petri, Hari, Riitta, Carlson, Synnöve

“…Earlier studies have shown considerable intersubject synchronization of brain activity when subjects watch the same movie or listen to the same story. Here we…”
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Spatial variability of functional brain networks in early-blind and sighted subjects by Boldt, Robert, Seppä, Mika, Malinen, Sanna, Tikka, Pia, Hari, Riitta, Carlson, Synnöve

“…To further the understanding how the human brain adapts to early-onset blindness, we searched in early-blind and normally-sighted subjects for functional brain…”
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Coinciding Early Activation of the Human Primary Visual Cortex and Anteromedial Cuneus by Vanni, Simo, Tanskanen, Topi, Seppä, Mika, Uutela, Kimmo, Hari, Riitta

“…Proper understanding of processes underlying visual perception requires information on the activation order of distinct brain areas. We measured dynamics of…”
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Continuous Sampling in Mutual-Information Registration by Seppa, M.

“…Mutual information is a popular and widely used metric in retrospective image registration. This metric excels especially with multimodal data due to the…”
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Common cortical network for first and second pain by Forss, Nina, Raij, Tuukka T., Seppä, Mika, Hari, Riitta

“…We measured, with whole-scalp magnetoencephalography, evoked fields from 10 healthy subjects to 1-ms thulium-laser stimuli that selectively activated…”
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High-quality two-stage resampling for 3-D volumes in medical imaging by Seppae, Mika

“…This paper introduces a simple method of two-stage resampling where Fourier-domain up-sampling is followed by traditional resampling. Practical aspects as well…”
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Evaluation of voxel-based group-level analysis of diffusion tensor images using simulated brain lesions by Hiltunen, Jaana, Seppä, Mika, Hari, Riitta

“…► VBA preprocessing steps affect considerably the analysis outcome. ► Lesions below certain thresholds for intensity and extent are not detected. ► Detection…”
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A correlation‐based method for extracting subject‐specific components and artifacts from group‐f MRI data by Pamilo, Siina, Malinen, Sanna, Hotta, Jaakko, Seppä, Mika

“…We present a simple but effective correlation‐based method (maxCorr) for extracting subject‐specific components from group‐ fMRI data. The method finds signal…”
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A correlation-based method for extracting subject-specific components and artifacts from group-fMRI data by Pamilo, Siina, Malinen, Sanna, Hotta, Jaakko, Seppä, Mika

“…We present a simple but effective correlation‐based method (maxCorr) for extracting subject‐specific components from group‐fMRI data. The method finds signal…”
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Diffusion tensor imaging and tractography of distal peripheral nerves at 3 T by Hiltunen, Jaana, Suortti, Taru, Arvela, Sakari, Seppä, Mika, Joensuu, Raimo, Hari, Riitta

“…We studied whether distal peripheral nerves could be imaged using quantitative diffusion tensor imaging (DTI) with a 3-T MRI scanner, and visualized using…”
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Visualizing human brain surface from T1-weighted MR images using texture-mapped triangle meshes by Seppä, Mika, Hämäläinen, Matti

“…We describe a novel method for visualizing brain surface from anatomical magnetic resonance images (MRIs). The method utilizes standard 2D texture mapping…”
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Sensorimotor cortex localization: comparison of magnetoencephalography, functional MR imaging, and intraoperative cortical mapping by Korvenoja, Antti, Kirveskari, Erika, Aronen, Hannu J, Avikainen, Sari, Brander, Antti, Huttunen, Juha, Ilmoniemi, Risto J, Jääskeläinen, Juha E, Kovala, Tero, Mäkelä, Jyrki P, Salli, Eero, Seppä, Mika

“…To prospectively evaluate magnetoencephalography (MEG) and functional magnetic resonance (MR) imaging, as compared with intraoperative cortical mapping, for…”
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Visualizing human brain surface from T 1-weighted MR images using texture-mapped triangle meshes by Seppä, Mika, Hämäläinen, Matti

“…We describe a novel method for visualizing brain surface from anatomical magnetic resonance images (MRIs). The method utilizes standard 2D texture mapping…”
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Three-dimensional integration of brain anatomy and function to facilitate intraoperative navigation around the sensorimotor strip by Mäkelä, Jyrki P., Kirveskari, Erika, Seppä, Mika, Hämäläinen, Matti, Forss, Nina, Avikainen, Sari, Salonen, Oili, Salenius, Stephan, Kovala, Tero, Randell, Tarja, Jääskeläinen, Juha, Hari, Riitta

“…We studied 12 patients with brain tumors in the vicinity of the sensorimotor region to provide a preoperative three‐dimensional visualization of the functional…”
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Three hands: fragmentation of human bodily awareness by Hari, Riitta, Hänninen, Ritva, Mäkinen, Timo, Jousmäki, Veikko, Forss, Nina, Seppä, Mika, Salonen, Oili

“…We describe patient E.P. who occasionally perceives a `ghost' hand which copies the previous positions of the left hand with a 0.5–1 min time lag, but follows…”
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Dynamical organisation of the human visual system revealed by lifetimes of activation traces by Uusitalo, Mikko A., Williamson, Samuel J., Seppä, Mika T.

“…Magnetic source imaging reveals a dynamical organisation of visual cortical areas suggesting that the participation of local memories is an essential component…”
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Presurgical localization of sensorimotor cortex: comparison of fMRI, MEG and intraoperative cortical mapping by Korvenoja, Antti, Kirveskari, Erika, Aronen, Hannu J., Avikainen, Sari, Brander, Antti, Forss, Nina, Hari, Riitta, Huttunen, Juha, Ilmoniemi, Risto J., Jääskeläinen, Juha, Kovala, Tero, Mäkelä, Jyrki, Seppä, Mika

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Not Available by Hiltunen, Jaana, Seppä, Mika, Hari, Riitta

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Diffuusiotensorikuvaus hermoratojen tutkimuksessa by Hiltunen, Jaana, Seppä, Mika, Hari, Riitta

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