Author

Jaakko Paasonen

University of Eastern FinlandORCID 0000-0002-1529-596XUnclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Signature Assays, Organisms & Methods

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Assay:imaging· 6 Organism:rat· 6 Approach:experimental assay· 5 Research Focus:spatial domain detection· 2 Research Focus:cell type annotation· 1 Organism:human· 1 Organism:mouse· 1 Approach:statistical model· 1

Frequent Co-Authors

Olli H.J. GröhniD· 5 shared Ekaterina PaasoneniD· 3 shared Raimo A. SaloiD· 3 shared Shalom MichaeliiD· 3 shared Silvia MangiaiD· 3 shared Djaudat IdiyatulliniD· 2 shared Hanne LaaksoiD· 2 shared Heikki TanilaiD· 2 shared

Activity by Year

2022-2025 · peak 3/yr

Co-Author Collaboration Network

10 top collaborators · 36 mutual co-author links

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5 shared papersNeuroscience

Olli H.J. GröhnORCID

Mutual co-authors in cluster

Author profile →

6 papers

Recent·Most cited

Simultaneous zero echo time fMRI of rat brain and spinal cord

Hanne Laakso, Lin Wu, Sara Ponticorvo, Raimo A. Salo, Jaakko Paasonen, Ekaterina Paasonen, Mikko I. Kettunen, Russell Lagore, Lance J. DelaBarre, Ethan Polcyn, Gregor Adriany, Javier Istúriz, Dee M. Koski, Djaudat Idiyatullin, Olli H.J. Gröhn, , Shalom Michaeli

This paper introduces a novel MRI technique for simultaneous fMRI of rat brain and spinal cord, demonstrating its feasibility for functional CNS assessments.

Magnetic Resonance in Medicine · Jul 17, 2025Peer-reviewedNeuroscience

Whisker stimulation with different frequencies reveals non-uniform modulation of functional magnetic resonance imaging signal across sensory systems in awake rats

Jaakko Paasonen, Juha S. Valjakka, Raimo A. Salo, Ekaterina Paasonen, Heikki Tanila, Shalom Michaeli, Silvia Mangia, Olli H.J. Gröhn

This study uses fMRI to show that whisker stimulation in awake rats activates multiple sensory systems, with distinct responses in core and non-core brain regions, and that anesthesia obscures high-order processing.

bioRxiv · Nov 13, 2024 · PreprintNeuroscience

A multi-channel TMS system enabling accurate stimulus orientation control during concurrent ultra-high-field MRI for preclinical applications

Victor Hugo Souza, Heikki Sinisalo, Juuso T. Korhonen, Jaakko Paasonen, Mikko Nyrhinen, Jaakko O. Nieminen, Maria A. Koponen, Mikko I. Kettunen, Olli H.J. Gröhn, Risto Juhani Ilmoniemi

This paper introduces a multi-channel TMS system for precise stimulus orientation control during ultra-high-field MRI in preclinical studies, enabling concurrent brain stimulation and imaging without compromising imaging quality.

bioRxiv · Aug 10, 2023 · PreprintNeuroscience

Spatial signatures of anesthesia-induced burst-suppression differ between primates and rodents

Nikoloz Sirmpilatze, Judith Mylius, Michael Ortiz-Rios, Jürgen Baudewig, Jaakko Paasonen, Daniel Golkowski, Andreas Ranft, Rüdiger Ilg, Olli H.J. Gröhn, Susann Boretius

This study identifies species-specific fMRI signatures of anesthesia-induced burst-suppression in primates and rodents, showing differences in brain regions involved.

eLife · May 4, 2022Peer-reviewedNeuroscience

StandardRat: A multi-center consensus protocol to enhance functional connectivity specificity in the rat brain

Joanes Grandjean, Gabriel Desrosiers-Grégoire, Cynthia Anckaerts, Diego Ángeles-Valdéz, Fadi Ayad, David André Barrière, Ines Blockx, Aleksandra B Bortel, Margaret Broadwater, Beatriz M Cardoso, Marina Célestine, Jorge E. Chavez-Negrete, Sangcheon Choi, Emma Christiaen, Perrin G Clavijo, , Kajo van der Marel

StandardRat improves functional connectivity specificity in rat brains through a standardized MRI protocol tested across 20 centers.

bioRxiv · Apr 27, 2022 · PreprintNeuroscience

Whole-brain studies of spontaneous behavior in head-fixed rats enabled by zero echo time MB-SWIFT fMRI

Jaakko Paasonen, Petteri Stenroos, Hanne Laakso, Tiina Pirttimäki, Ekaterina Paasonen, Raimo A. Salo, Heikki Tanila, Djaudat Idiyatullin, Michael Garwood, Shalom Michaeli, Silvia Mangia, Olli H.J. Gröhn

This paper introduces MB-SWIFT fMRI to study whole-brain activity in head-fixed rats during spontaneous behavior, showing functional parcellation and behavior-related brain activity.

NeuroImage · Jan 19, 2022Peer-reviewedNeuroscience