Author

Seyed-Mohsen Ebrahimi

Oulu University HospitalORCID 0000-0002-9395-7017Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Neuroscience· 2

Signature Assays, Organisms & Methods

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Organism:human· 2 Assay:imaging· 2 Approach:statistical model· 2 Research Focus:spatial domain detection· 1

Frequent Co-Authors

Heta HelakariiD· 2 shared Janne KananeniD· 2 shared Johanna PiispalaiD· 2 shared Johanna TuunaneniD· 2 shared Lauri RaitamaaiD· 2 shared Matti JärveläiD· 2 shared Mika KallioiD· 2 shared Niko HuotariiD· 2 shared

Activity by Year

2024-2026 · peak 1/yr

Co-Author Collaboration Network

10 top collaborators · 45 mutual co-author links

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2 shared papersNeuroscience

Heta HelakariORCID

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2 papers

Recent·Most cited

Infra-slow (<0.1 Hz) modulation of human brain pulsations in awake and sleep states

Tommi Väyrynen, Heta Helakari, Vesa O. Korhonen, Johanna Tuunanen, Niko Huotari, Janne Kananen, Seyed-Mohsen Ebrahimi, Ahmed Elabasy, Matti Järvelä, Katariina Hautamäki, Katariina Laurén, Lauri Raitamaa, Ulla Salmi, Johanna Piispala, Mika Kallio, Vesa J. Kiviniemi

This study investigates cross-frequency oscillatory interactions in brain pulsations during awake and NREM-sleep states, revealing directional coordination mechanisms between infra-slow, respiratory, and cardiovascular oscillations.

Journal of Neuroscience · Jun 5, 2026Peer-reviewedNeuroscience

Cardiovascular and vasomotor pulsations in the brain and periphery during awake and NREM sleep in a multimodal fMRI study

Johanna Tuunanen, Heta Helakari, Niko Huotari, Tommi Väyrynen, Matti Järvelä, Janne Kananen, Annastiina Kivipää, Lauri Raitamaa, Seyed-Mohsen Ebrahimi, Mika Kallio, Johanna Piispala, Vesa J. Kiviniemi, Vesa O. Korhonen

This study examines cardiovascular and vasomotor pulsations in the brain and periphery during awake and NREM sleep using fMRI and photoplethysmography, finding increased synchrony and power in vasomotor waves during sleep.

Frontiers in Neuroscience · Oct 8, 2024Peer-reviewedNeuroscience