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Alex Fischbach, PhD (@AlexFischbach_) profile picture

Alex Fischbach, PhD

@AlexFischbach_

Computational neuroscientist creating statistical and computational tools for precision neuroscience | Postdoc w/ Dr. Noble @Northeastern

 Boston
neuroprismlab.github.io/members
Joined July 2019
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NEW ARTICLE ALERT ‼️ proud to share that my first-first author paper is now out in @SfNJournals and has been selected as a featured article. Read on for a breakdown of our findings🧵:
Lisa Feldman Barrett (@LFeldmanBarrett) profile pictureLisa Feldman Barrett@LFeldmanBarrett29 Jun 2024
Think that the #brain contains circuits for "fight and flight"? Think again. Congratulations to @AlexFischbach_ et. al on a careful and groundbreaking study. @AffectiveSciLab #Neuroscience jneurosci.org/content/44/26/…
Seven Tesla Evidence for Columnar and Rostral–Caudal Organization of the Human Periaqueductal Gray...

Seven Tesla Evidence for Columnar and Rostral–Caudal Organization of the Human Periaqueductal Gray...

The periaqueductal gray (PAG) is a small midbrain structure that surrounds the cerebral aqueduct, regulates brain–body communication, and is often studied for its role in “fight-or-flight” and...

jneurosci.org
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Posting on behalf of the semi-X-less @sNeuroble ! So excited to share: What started with fMRI effect size benchmarks ended up showing that conventional study planning detects ~half of expected brain effects, suggesting more distributed processes than the lit shows🧠
Image from Alex Fischbach, PhD (@AlexFischbach_)
Image from Alex Fischbach, PhD (@AlexFischbach_)
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biorxiv.org/content/10.64898… @ShearerHallee @JDadashkarimi @maggieeastfire @MaxRolison @chrisclaycamp @ten_photos @psychonetrics @DScheinost @RosenblattMatt @LinkTejavibulya
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🚨 Tomorrow at 1:30 PM ET 🚨 Join us for our first “How-To” workshop of the year with @russpoldrack on Better Code, Better Science 🧠💻
OHBM Trainees (@OHBM_Trainees) profile pictureOHBM Trainees@OHBM_TraineesApr 1
🚨Two weeks away!🚨 Reminder that our first workshop of the year will happen in two weeks featuring @russpoldrack. 🧠 Better Code, Better Science 📅22 April 2026 🔗Register: forms.gle/WRUdGQEpd5isA8uy5 #OHBM #OpenScience
Image from OHBM Trainees (@OHBM_Trainees)
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I’m excited to share that I was elected as the inaugural Virtual Events Coordinator for the Organization for Human Brain Mapping Student & Postdoc Special Interest Group! A huge thank you to the open-science community for trusting me to shape this new+exciting position! #OHBM
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To kick things off, I’m organizing a monthly “how-to” workshop series ft. leading scientists who will share practical/technical skills w/ the global SP-SIG community. If you or anyone you know is interested in participating, please reach out!
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The NeuroPRISM Lab 🧠 is in the news! The article touches on the Effect Size Explorer, the Power Calculator, and my own Local CSF Correction Pipeline — a scalable preprocessing pipeline for correcting local physiological noise in the subcortex. news.northeastern.edu/2025/0…
Precise maps of the brain’s deepest corners are made possible through tools developed by these...

Precise maps of the brain’s deepest corners are made possible through tools developed by these...

Northeastern researchers have developed a set of tools that offer precise mapping of the brain’s deepest corners.

news.northeastern.edu
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Excited to share that the NeuroPRISM Lab has been awarded the @NIH_NINDS Early-Career Rigor Champions Prize! A major accomplishment for the lab, but especially reflects the leadership of our PI, Dr. Stephanie Noble! 🧠@sNeuroble 🧠@ShearerHallee 💻 #FabricioCravo
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@NIH_NINDS @sNeuroble @ShearerHallee
Image from Alex Fischbach, PhD (@AlexFischbach_)
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Spatial heterogeneity of CSF related-noise in fMRI: why it matters and what we can do about it. My work at #OHBM2025 provides evidence for taking a region-specific approach when isolating CSF artifact in the subcortex. Swing by #P1358 on Fri/Sat to discuss!
Image from Alex Fischbach, PhD (@AlexFischbach_)
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On another exciting note — I’m also on the job market! Always looking forward to discussing potential opportunities :) stop by my poster 1:45-3:45PM and the 6PM poster reception to chat!
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Improving fMRI signal quality starts with better noise modeling. My project at #CNS2025 shows how localized region-specific CSF correction may better isolate neural activity and increase sensitivity in the subcortex. Come by my poster #D138 to learn more! (Mon. 8:00-10:00AM) 🧠 – at Boston, MA
Image from Alex Fischbach, PhD (@AlexFischbach_)
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Really fantastic and innovative work led by my amazing NeuroPRISM lab colleague and good friend. Congrats @ShearerHallee! – at Boston, MA
Hallee Shearer (@halleeshearer.bsky.social) (@ShearerHallee) profile pictureHallee Shearer (@halleeshearer.bsky.social)@ShearerHallee3 Jan 2025
Curious if movie-watching can improve the reliability of FC from a certain brain region? Check out our Shiny App vanderlab.shinyapps.io/movie… to explore the results from our ROI-based comparison of the test-retest reliability of FC between movie-watching and resting-state fMRI.
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NeuroPRISM Lab's 1st birthday (full of cake & statistically driven party games, of course)!!! 🥳🎉 – at Boston, MA
Stephanie Noble (@sneuroble.bsky.social) (@sNeuroble) profile pictureStephanie Noble (@sneuroble.bsky.social)@sNeuroble11 Sep 2024
Today, the lab threw a surprise Happy 1st Birthday party for NeuroPRISM lab 🥹 @ShearerHallee+@AlexFischbach_ made cake, photos, & even invented a game/app to predict word use changes over time These two are unstoppable. Thanks for making our first year a blast! 🥳
Image from Stephanie Noble (@sneuroble.bsky.social) (@sNeuroble)
Image from Stephanie Noble (@sneuroble.bsky.social) (@sNeuroble)
Image from Stephanie Noble (@sneuroble.bsky.social) (@sNeuroble)
Image from Stephanie Noble (@sneuroble.bsky.social) (@sNeuroble)
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Back in Boston after 2 incredible weeks in Seattle for @NeuroHackademy! For our final hackathon project, @ShearerHallee and I developed a tool to enhance the clarity and reproducibility of code documentation (1/2 🧵). – at Boston, MA
Image from Alex Fischbach, PhD (@AlexFischbach_)
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Our pipeline extracts inputs and outputs from functions within a python script, organizes them into a sequential flowchart, and exports the flowchart to a README file in your GitHub repo. To find out more, visit our GitHub repo here: github.com/halleeshearer/scr… (2/3) #OpenScience – at Boston, MA
GitHub - halleeshearer/scripts2viz: A tool to visualize the flow of inputs, outputs, functions...

GitHub - halleeshearer/scripts2viz: A tool to visualize the flow of inputs, outputs, functions...

A tool to visualize the flow of inputs, outputs, functions within scripts. - halleeshearer/scripts2viz

github.com
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Week 2 of @neurohackademy 🗻 Such a great weekend exploring Seattle with @ShearerHallee, @sNeuroble & @psychonetrics 🧠 Incredibly grateful for this team and awesome summer program #NeuroPRISMLab #NeuroHackademy2024 – at Seattle, WA
Image from Alex Fischbach, PhD (@AlexFischbach_)
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Kicked off @neurohackademy at @UW in Seattle w/ a great first day of lectures on best coding practices + science as a design problem! Looking forward to the next 2 weeks of workshops on reproducible data science and neuroimaging 🤓💻🧠#NeuroHackademy2024 #OpenScience
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Check out an abbreviated summary of our new PAG working memory manuscript in ‘This Week in the Journal’ 🧠 #PAG #fMRI #brainstem #subcortex #JNeuro
SfN Journals (@SfNJournals) profile pictureSfN Journals@SfNJournals26 Jun 2024
This Week in The Journal JNeurosci | PAG Responses in a Nonthreatening Task; Identifying a New Variable for Action Potential Propagation Down Myelinated Axons jneurosci.org/content/44/26/…
This Week in The Journal

This Week in The Journal

PAG Responses in a Nonthreatening Task Alexandra Fischbach, Ajay Satpute, Karen Quigley, Philip Kragel, Danlei Chen et al. (see article e1757232024) The role of the periaqueductal gray (PAG) in human...

jneurosci.org
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And that's a wrap! I am incredibly grateful for the enthusiasm (yay, subcortex!) and feedback that this poster received & I am so excited to continue to grow this project. A huge thank you to @sNeuroble and @ShearerHallee for all of their support and endless knowledge #CNS2024
Image from Alex Fischbach, PhD (@AlexFischbach_)
Image from Alex Fischbach, PhD (@AlexFischbach_)
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Interested in precision imaging within the subcortex? If you're attending #CNS2024, come check out our research on subject-specific masks for subcortical structures today at poster session C! Our findings may surprise you (poster C117, 5:00-7:00pm) .
Image from Alex Fischbach, PhD (@AlexFischbach_)
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Truly the only person I know who isn't afraid of my 13+ Juypter notebook tabs opened up all at once @ShearerHallee
Stephanie Noble (@sneuroble.bsky.social) (@sNeuroble) profile pictureStephanie Noble (@sneuroble.bsky.social)@sNeuroble21 Feb 2024
Particularly for newer ECRs learning new methods, both buddies benefit from review of code/methods plus opportunities for co-authorship in Ted’s system I’ve seen it happen organically a handful of times (shout out @AlexFischbach_ @ShearerHallee), but it could be more standard!
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Feeling overwhelming grateful for this opportunity, this lab, and these incredible people! 🎉 2024 here we come 😊🙌🏻
Stephanie Noble (@sneuroble.bsky.social) (@sNeuroble) profile pictureStephanie Noble (@sneuroble.bsky.social)@sNeuroble3 Jan 2024
New Year, new lab!🎊 Excited to introduce the inaugural members of the NeuroPRISM lab @AlexFischbach_ & @ShearerHallee! Alex (right) is a Psych PhD student focusing on measurement precision in subcortex Hallee (left) is an RA focusing on fMRI stat methods & open science 🎉 1/2
Image from Stephanie Noble (@sneuroble.bsky.social) (@sNeuroble)
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And that’s a wrap! To everyone who stopped by my poster and gave me feedback/helped me brainstorm future research directions - THANK YOU!! I had so much fun sharing this with you and getting to know you. See you next year @TheRealSPR !! #2023SPR
Image from Alex Fischbach, PhD (@AlexFischbach_)
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If you’re at #SPR this weekend, come check out my poster (POS III-65) tonight on human PAG functional organization during a (non-threatening) working memory task. I'm really excited to share our work from the @affectivescilab😊!!! #2023SPR #SPRNewOrleans @TheRealSPR
Image from Alex Fischbach, PhD (@AlexFischbach_)
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