Viljami Sairanen
Medical Physicist | PhD | Entrepreneur
Researching brain models (dMRI) at Baby Brain Activity Center of the University of Helsinki, babacenter.fi
Department chief physicist in radiology at Hämeenlinna Central Hospital, Finland
- Preprint From nodes to pathways: an edge-centric model of brain structure-function coupling via constrained Laplacians www.biorxiv.org/content/10.1...
- The feeling when you notice had made an typo in the title of a preprint 😅🤦♂️ thankfully the kind people at bioarxiv told me that it should get fixed automatically because title is correct in the pdf. www.biorxiv.org/content/10.1...
- Reposted by Viljami Sairanen🧠New preprint! What if cortical geometry alone already encodes much of white-matter organization? We introduce a subject-specific, reversible cortical folding model that unfolds and refolds the brain from a single T1w MRI; no diffusion, no ML. www.biorxiv.org/content/10.6...
- Getting a paper status to "under review" after six desk rejects feels already like a victory 🥳 I'm quite sure that even the infamous reviewer two can't be more offensive than some of the editors so far 😅
- Oletko miettinyt, mikä ihme on #sairaalafyysikko tai, mitä kummaa moinen tekee? Tässäpä sinulle hieno yhteenveto alasta: youtu.be/HlFP2CqTiAs?... Iloista sairaalafysiikan päivää!
- Is this a tractogram of the default mode network or a Romulan warship from Star Trek?
- Reposted by Viljami Sairanen📢 Excited to share our new paper from Synnöve Carlson’s team! We show how prematurity impacts higher-order brain network dynamics in school-aged children and adolescents: doi.org/10.1016/j.ne... #Neuroscience #Brain #Prematurity #BrainHealth #Neurodevelopment
- Gambling in science vol 56: this time I refused to review a paper in MDPI journal as they practice gambling (reviewer has a random chance to obtain reduction on their APC fee). What do you think? Is this gambling or are you just wrong?
- Reposted by Viljami SairanenOnko edessä ensimmäinen konferenssi? Etkö oikein tiedä, mitä siellä tapahtuu tai mitä esimerkiksi työpaja tarkoittaa? Ei hätää. Blogissani selitän konferenssiin liittyvää sanastoa.
- 1/5 Loot boxes of academic publishing? A journal asked me to review a paper. The journal "recognizes reviewers’ contributions via APC waivers". If you review 2-4 papers per year, you will get 40% off the (insanely high) pay-to-win (publish) fee. Basically, this is the same as playing at casino...
- 1) The journal selects reviewers. There is no reason for them to offer fourth reviews equally. Some *will* get it, likewise some might win in a lottery. Majority, however, never will. This is the same old shit with a new color to exploit scientists - but even worse! ...
- 2) They don't state if 2 reviews are enough. So you are tempted to do 3rd and 4th to secure the entry ticket for the actual game*. Enter December and all the normal hurdles of end of the year. Then an editor asks you for the fourth review. You really don't have time, but you are already hooked...
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View full thread5) I might sound pessimistic but then again the publishers make a shitload of money by providing PDFs and are well known of abusing whatever they can for profit. I'm just waiting for the microtransactions! Review one paper and you can use *bold font* in your next paper in our prestigious journal!
- Reposted by Viljami SairanenDoes anyone with a Siemens Trio have the gradient distortion correction .coef file they'd be willing to send us? Thanks!
- Hyvinvointialueilla tehdään myös tiedettä. Tai ainakin minä teen. Tällä kertaa osana kansainvälistä poppoota ja kohteena 16000 ihmisen magneettikuvat 🧠 omahame.fi/fi/w/tutkimu...
- Reposted by Viljami SairanenIt's hard to overstate what a big deal this paper is: onlinelibrary.wiley.com/doi/10.1002/.... Head motion in dMRI is NOT like head motion in BOLD.
- Fresh from the press! Head Motion in Diffusion Magnetic Resonance Imaging: Quantification, Mitigation, and Structural Associations in Large, Cross-Sectional Datasets Across the Lifespan Thanks to Kurt Schilling et al. for including me! dx.doi.org/10.1002/hbm.... #dMRI
- Reposted by Viljami SairanenWe are very excited to announce the open release of a new 170 participant dataset: Linked MEG, TMS, multimodal 3T MRI, 7T MRI, Connectom MRI, cognitive /questionnaire data. Immense effort from a fabulous CUBRIC team. Paper by Carolyn McNabb et al: doi.org/10.1038/s415...
- Silly ChatGPT 🤭
- Reposted by Viljami SairanenHappy 30th birthday year to SPM!! 🎈🍰 To get the party started, we are delighted to announce SPM 25.01, a major new version of the open-source neuroimaging software. Read the preprint to discover what's new arxiv.org/pdf/2501.12081 and download SPM for free from Github github.com/spm/spm/rele...
- Oletko aina tehnyt joulutortut väärin? Laitetaanpa lusikka tähänkin luumusoppaan. Muotoillaan klassikkoleivonnainen uudelleen, jolloin myös luumumarmeladi on mahdollista levittää tasaisemmin. Näin joka haukkaus maistuu yhtä hyvälle! Tässä joululahjani suomelle: joulutortini glassati
- 1 kg torttutaikinalevyjä leikataan 2 - 3 cm levyisiksi suikaleiksi.
- 150 g tomusokeria siivilöidään ja siihen sekoitetaan 30 g kananmunan valkuaista (eli noin yhden munan valkuainen). Sokerimassa levitetään veitsellä torttutaikinasuikaleiden päälle. Suikaleet asetellaan paistopellille noin 2 cm välein.
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View full threadTortinon rakenne koostuu lehtevästä pohjataikinasta, jonka päällä on rapeaksi paistunut marenkimainen ja makea kuorrute sekä kirpeä luumumarmeladi. Marmeladin määrällä voi säätää leivonnaisen happamuutta. Liikaa ei sovi laittaa, koska tällöin taikina ei jaksa nousta
- 1.5 years ago I asked the Finnish Publication Forum to list @imagingneurosci.bsky.social as a new journal. Journals start always on level 0. I asked them to review the journal and they rised it to level 1. Now Finnish university libraries can start to pay APC fees of Imaging Neuroscience finally!
- Hey to all the new people here: please write _something_ to your bio (topic of your research, interests etc). Makes it easier to decide to follow back or not. This is not only to avoid bots but also quite interesting to learn what people are doing!
- Now that this platform seems to be (blue)skyrocketing, it is probably good time to share my research topic: cracking the brain with #dMRI #MRI #minätutkin youtu.be/8lw-wkL3vXY?...
- Reposted by Viljami SairanenHello there! #ismrm
- Reposted by Viljami SairanenMukavaa nähdä eettisen ja epäkaupallisen somen kehittyvän. Seuraavana vuorossa avoimen lähdekoodin TikTok: loops.video Avoimen lähdekoodin IG meiltä löytyykin jo: pixelfed.org Ja tietysti Mastodon mementomori.social Siistiä nähdä, että pian näitä kaikkia voi käyttää päikseen vaikka Threadsista.
- Reposted by Viljami SairanenCombining function and structure in a single macro-scale connectivity model of the human brain https://www.biorxiv.org/content/10.1101/2024.03.03.583186v1
- Päivitetään tämä suomeksikin eli #Minätutkin aivorakenteita ja esitän tässä uuden tavan yhdistää toiminnalliset aivomittaukset aivorakennemalleihin. Toimii ainakin teoriassa tosi hyvin, mutta nähtäväksi jää tuleeko tästä apua Alzheimerin ym. tutkimisessa.
- Three years from idea to preprint but here it is: a macro-scale model combining functional and structural connectivity matrices of the human brain networks. This is a technical report so not applied to any clinical data yet. www.biorxiv.org/content/10.1... #neuroimaging #fMRI #dMRI #connectivity
- Here is an example in Python how to combine functional and structural #brain connectivity (fc&sc) matrices: github.com/vilsaira/FSC Surprisingly simple to apply: > from fsc import fsc > fscm = fsc(V=fc, R=sc).get_I() biorxiv.org/content/10.1... #dipymri #Connectivity #fMRI #dMRI
- Three years from idea to preprint but here it is: a macro-scale model combining functional and structural connectivity matrices of the human brain networks. This is a technical report so not applied to any clinical data yet. www.biorxiv.org/content/10.1... #neuroimaging #fMRI #dMRI #connectivity
- Three years from idea to preprint but here it is: a macro-scale model combining functional and structural connectivity matrices of the human brain networks. This is a technical report so not applied to any clinical data yet. www.biorxiv.org/content/10.1... #neuroimaging #fMRI #dMRI #connectivity
- Reposted by Viljami SairanenHello World! We have now received 500 submissions to Imaging Neuroscience, with 50 of these already published. direct.mit.edu/imag/issue Huge thanks for your support in moving our field away from for-profit publishers.
- Reposted by Viljami SairanenOnly 0.5% of neuroscience studies look at women’s health. Here’s how to change that - wonderful piece by @emilyjacobs.bsky.social www.nature.com/articles/d41...
- Reposted by Viljami Sairanen📢 Etsimme erikoistutkijaa tai väitöskirjatutkijaa, joka hallitsee tilastolliset metodit 📉📈 Lue lisää ja hae 👇 #AcademicSky ats.talentadore.com/apply/erikoi...
- Reposted by Viljami SairanenDelighted to share that our work has been published in Medical Image Analysis. Novel multivariate formulation for Paradigm Free Mapping: • Exploits spatial information. • Avoids selection of the reg parameter. • New metric: probability of event being true. #neuroimaging #neuroskyence
- Reposted by Viljami SairanenFunctional parcellation of the neonatal brain | #bioRxiv www.biorxiv.org/content/10.1...
- @jennypaananen.bsky.social rupesi kiinnostamaan, että mitäs sinä tutkit? Syy se, että mun pitäisi vuorovaikuttaa terveydenhuollossa useiden eri ammattikuntien kanssa, mutta fyysikon pohjakoulutus kattaa lähinnä neljä perusvuorovaikutusta eikä yksikään niistä auta selittämään kirurgille asioita 😁
- Eli ammattilais-ammattilais vuorovaikutuksesta kiinnostaisi oppia lisää. Löytyisikö sulta jotain vinkkiä, mistä suunnasta löytyisi tietoa aiheesta? Erityisesti siis suomalaisen terveydenhuollon yhteydessä.
- Reposted by Viljami SairanenWe have x4 Postdoc positions @ Cambridge, @ the fantastic MRC Cognition & Brain Sciences Unit, working on exciting comp neuro, imaging and NeuroAI projects… w/ @duncanastle.bsky.social, Petra Vertes + others! Link here: jobs.cam.ac.uk/job/43796/ If you have any questions, hmu! (Do plz share!)
- Reposted by Viljami Sairanen👶🧠 Can we look at individual functional brain organization in newborns? We explored new methodological avenues for fMRI to make this possible: www.biorxiv.org/content/10.1... @koiralasanju.bsky.social @crimoral.bsky.social @tervoclemmensb.bsky.social @bart-larsen.bsky.social @smnelson.bsky.social
- Interested in #Diffusion #MRI ? Look no further! A #free talk, this Friday 10:00 UK time, on exactly that! Looking forward to hearing about how to validate diffusion biomarkers! Talk provided by BIC #ISMRM If you need a link, let me know.
- Reposted by Viljami SairanenHey neuroimagers, does anyone know of a good subcortical parcellation with separate ROIs for the dorsal vs ventral caudate/putamen? (not VS aka nucleus accumbens) Thanks in advance! #neuroskyence #neuroimaging #PsychSciSky #fmri
