J
Johanna Vartiainen
Researcher at Aalto University
Publications - 6
Citations - 248
Johanna Vartiainen is an academic researcher from Aalto University. The author has contributed to research in topics: Temporal cortex & Magnetoencephalography. The author has an hindex of 6, co-authored 6 publications receiving 229 citations. Previous affiliations of Johanna Vartiainen include Helsinki University of Technology.
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Functional magnetic resonance imaging blood oxygenation level-dependent signal and magnetoencephalography evoked responses yield different neural functionality in reading
TL;DR: Acknowledgment of the complementary nature of hemodynamic and electrophysiological measures, as reported here in a cognitive task using evoked response analysis in MEG and BOLD signal analysis in fMRI, represents an essential step toward an informed use of multimodal imaging that reaches beyond mere combination of location and timing of neural activation.
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Spatiotemporal convergence of semantic processing in reading and speech perception.
TL;DR: The present data indicate involvement of the middle superior temporal cortex in semantic processing from ∼300 ms onwards, regardless of input modality.
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Neural dynamics of reading morphologically complex words
Johanna Vartiainen,Silvia Aggujaro,Minna Lehtonen,Minna Lehtonen,Minna Lehtonen,Annika Hultén,Matti Laine,Riitta Salmelin +7 more
TL;DR: The neural correlates of the processing of inflected nouns in the morphologically rich Finnish language were studied, supporting the view that the well-established behavioral processing cost for inflected words stems from the semantic-syntactic level rather than from early decomposition.
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Neural Interactions at the Core of Phonological and Semantic Priming of Written Words
TL;DR: The results highlight coherence as a neural mechanism of priming and dissociate semantic and phonological processing via their distinct connectivity profiles.
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Multivariate analysis of correlation between electrophysiological and hemodynamic responses during cognitive processing
TL;DR: Heterogeneous patterns of high-frequency correlation between MEG and fMRI responses, with marked dissociation between lower and higher order cortical regions are revealed, demonstrating the complexity of the neurophysiological counterparts of hemodynamic fluctuations in cognitive processing.