Author

Jani P. Saunavaara

Turku University HospitalORCID 0000-0002-0617-1105Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

Click to filter author papers

Neuroscience· 6

Signature Assays, Organisms & Methods

Click to filter · or open tag

Organism:human· 6 Approach:statistical model· 6 Assay:imaging· 5 Research Focus:cell type annotation· 3 Research Focus:benchmarking· 2 Research Focus:differential expression· 2 Research Focus:dimensionality reduction· 2 Assay:bulk RNA-seq· 1

Frequent Co-Authors

Hasse KarlssoniD· 5 shared Jetro J. TuulariiD· 5 shared Linnéa KarlssoniD· 5 shared Riitta K ParkkolaiD· 5 shared Anni CopelandiD· 4 shared Eero A. SilveriD· 4 shared Ekaterina SaukkoiD· 4 shared Elmo P. PulliiD· 4 shared

Activity by Year

2021-2025 · peak 3/yr

Co-Author Collaboration Network

10 top collaborators · 45 mutual co-author links

Click any collaborator node to inspect or filter shared papers

Focal author (center)Selected co-authorORCID co-authorUnlinked name

Curved chords = mutual co-authorship

5 shared papersNeuroscience

Hasse KarlssonORCID

Mutual co-authors in cluster

Author profile →

6 papers

Recent·Most cited

Endogenous opioid system modulates proximal and distal threat signals in the human brain

Kerttu Seppälä, Vesa Putkinen, Harri Harju, Eleni Rebelos, Jussi Hirvonen, Semi Helin, Johan Rajander, Henry K. Karlsson, Jani P. Saunavaara, Jukka Hyönä, Lauri Nummenmaa

This study investigates how the endogenous opioid system modulates brain responses to threat and safety signals in humans using fMRI and PET.

Molecular Psychiatry · Dec 24, 2025Peer-reviewedNeuroscience

Structural brain correlates of non-verbal cognitive ability in 5-year-old children: findings from the FinnBrain Birth Cohort study

Elmo P. Pulli, Saara Nolvi, Eeva Eskola, Elisabeth Nordenswan, Eeva Holmberg, Anni Copeland, Venla Kumpulainen, Eero A. Silver, Harri Merisaari, Jani P. Saunavaara, Riitta K Parkkola, Tuire Lähdesmäki, Ekaterina Saukko, Eeva‐Leena Kataja, Riikka Korja, , Jetro J. Tuulari

Human Brain Mapping · Aug 22, 2023Peer-reviewedNeuroscience

Infant Left Amygdala Volume Is Negatively Associated with Fecal Microbiota Diversity

Anna‐Katariina Aatsinki, Jetro J. Tuulari, Eveliina Munukka, Leo Lahti, Anniina Keskitalo, Henna-Maria Kailanto, Saara Nolvi, Noora M. Scheinin, Jani P. Saunavaara, Riitta K Parkkola, John D. Lewis, Niloofar Hashempour, Satu J. Shulist, Linnéa Karlsson, Hasse Karlsson

The paper finds a negative association between infant left amygdala volume and fecal microbiota alpha diversity in early life.

bioRxiv · Apr 23, 2023 · PreprintNeuroscience

Sex differences, asymmetry and age-related white matter development in infants and 5-year-olds as assessed with Tract-Based Spatial Statistics

Venla Kumpulainen, Harri Merisaari, Eero A. Silver, Anni Copeland, Elmo P. Pulli, John D. Lewis, Ekaterina Saukko, Satu J. Shulist, Jani P. Saunavaara, Riitta K Parkkola, Tuire Lähdesmäki, Linnéa Karlsson, Hasse Karlsson, Jetro J. Tuulari

The paper uses tract-based spatial statistics to examine sex differences, lateralization, and age-related white matter development in infants and 5-year-olds using diffusion tensor imaging.

Human Brain Mapping · Mar 22, 2023Peer-reviewedNeuroscience

Feasibility of FreeSurfer processing for T1-weighted brain images of 5-year-olds: semiautomated protocol of FinnBrain Neuroimaging Lab

Elmo P. Pulli, Eero A. Silver, Venla Kumpulainen, Anni Copeland, Harri Merisaari, Jani P. Saunavaara, Riitta K Parkkola, Tuire Lähdesmäki, Ekaterina Saukko, Saara Nolvi, Eeva‐Leena Kataja, Riikka Korja, Linnéa Karlsson, Hasse Karlsson, Jetro J. Tuulari

This paper evaluates the feasibility of using FreeSurfer for processing T1-weighted brain images of 5-year-olds, showing minor effects of manual edits and recommending quality assessment for reliable segmentation.

Frontiers in Neuroscience · May 2, 2022Peer-reviewedNeuroscience

Subcortical brain segmentation in 5-year-old children: validation of FSL-FIRST and FreeSurfer against manual segmentation

Kristian Lidauer, Elmo P. Pulli, Anni Copeland, Eero A. Silver, Venla Kumpulainen, Niloofar Hashempour, Harri Merisaari, Jani P. Saunavaara, Riitta K Parkkola, Tuire Lähdesmäki, Ekaterina Saukko, Saara Nolvi, Eeva‐Leena Kataja, Linnéa Karlsson, Hasse Karlsson, Jetro J. Tuulari

This study compares FSL-FIRST and FreeSurfer automated subcortical segmentation tools against manual segmentation in 5-year-olds, finding FSL-FIRST more accurate for most structures but with overestimation issues for small ones.

bioRxiv · May 28, 2021 · PreprintNeuroscience