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Reposted by Dan Handwerker

Leslie B Vosshall PhD @leslievosshall.bsky.social · 1d

Great Job - Great Colleagues - Great Science👍
Help us pick the next generation of @hhmi.org Investigators, Freeman Hrabowski Scholars, Hanna Gray Fellows, Gilliam Fellows
Relocation to DC is required, perfect for academic PIs looking for their next chapter
hhmi.wd1.myworkdayjobs.com/External/job...

Senior Director - Scientific Officer

Primary Work Address: 4000 Jones Bridge Road, Chevy Chase, MD, 20815 Current HHMI Employees, click here to apply via your Workday account. The Howard Hughes Medical Institute (HHMI) advances the disco...

hhmi.wd1.myworkdayjobs.com

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Dan Handwerker @danielhandwerker.bsky.social · 1d

Nobel Prizes This Year Offer Three Cheers for Slow Science www.nytimes.com/2025/10/09/s...

Nobel Prizes This Year Offer Three Cheers for Slow Science

www.nytimes.com

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Dan Handwerker @danielhandwerker.bsky.social · 4d

Assuming one cleanly modeled a multimodal aftereffect (i.e. visual+audio) I'd expect additional responses in auditory and audiovis integration areas to the inducer stims. Based on this work, I'd hypothesize broader responses to aftereffects with some cortical feedback contributions.

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Dan Handwerker @danielhandwerker.bsky.social · 4d

Visual only

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Dan Handwerker @danielhandwerker.bsky.social · 10d

The standard dev of resting time series is correlated with CVR probably via voxelwise vessel diameters & baseline CBF (i.e. doi.org/10.1016/j.ne... ). This new method might be more precise, but I'm curious how much better this method matches baseline CBF vs simply the stdev of the resting state TS.

Redirecting

doi.org

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Reposted by Dan Handwerker

Charan Ranganath @charan-neuro.bsky.social · Sep 8

We are looking for our next colleague. Feel free to reach out to me if you have questions!

Yuko Munakata @yukomunakata.bsky.social · Sep 8

UC Davis is hiring! A tenure-track assistant professor of psychology, in human cognition or cognitive neuroscience #psychjobs recruit.ucdavis.edu/JPF07300

Assistant Professor of Psychology - Human Cognition or Cognitive Neuroscience

University of California, Davis is hiring. Apply now!

recruit.ucdavis.edu

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Dan Handwerker @danielhandwerker.bsky.social · Sep 5

Cortical influences of afterimages may not be essential for day-to-day life, but it's just one example how a behavioral variable we rarely probe may be linked to some of this whole-brain activity. 5/5

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Dan Handwerker @danielhandwerker.bsky.social · Sep 5

As for what the whole brain does, our new preprint looks at afterimages and shows both variations in human influences and a lot of cortical influences bsky.app/profile/dani... 4/5

Dan Handwerker @danielhandwerker.bsky.social · Sep 5

Contributed to nice work by @sharifkronemer.bsky.social That combines a novel behavioral paradigm with both whole-brain and layer fMRI to examine cortical processing of afterimages. www.biorxiv.org/content/10.1...

The human brain mechanisms of afterimages: From networks to cortical layers

Afterimages are common visual illusions that have long attracted scientific interest, yet their neural mechanisms remain little understood. We used high-spatial-resolution fMRI to investigate human wh...

www.biorxiv.org

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Dan Handwerker @danielhandwerker.bsky.social · Sep 5

Localization is not everything but it's only part of the story. One of my core take homes from that work is that much of what we either localize or define as part of networks is limited by our data quality. If collecting 9X data gives diff results, more humility is needed about false negatives. 3/5

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Dan Handwerker @danielhandwerker.bsky.social · Sep 5

Javier's initial whole-brain activity fMRI paper & our followup definitely show whole brain activity to a visual stimulus, but the response is an order of magnitude larger in classically localized visual regions. pubmed.ncbi.nlm.nih.gov/25405938/ 2/5

Task Dependence, Tissue Specificity, and Spatial Distribution of Widespread Activations in Large Single-Subject Functional MRI Datasets at 7T - PubMed

It was recently shown that when large amounts of task-based blood oxygen level-dependent (BOLD) data are combined to increase contrast- and temporal signal-to-noise ratios, the majority of the brain s...

pubmed.ncbi.nlm.nih.gov

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Dan Handwerker @danielhandwerker.bsky.social · Sep 5

Brain damage / lesion studies partially answer that some localized regions are essential for behavior and some have more subtle (if any real-time effects). 1/5

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Dan Handwerker @danielhandwerker.bsky.social · Sep 5

Know anyone who would be an excellent NIMH director? Application deadline is 10/6. hr.nih.gov/jobs/search/...

hr.nih.gov

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Dan Handwerker @danielhandwerker.bsky.social · Sep 5

Contributed to nice work by @sharifkronemer.bsky.social That combines a novel behavioral paradigm with both whole-brain and layer fMRI to examine cortical processing of afterimages. www.biorxiv.org/content/10.1...

The human brain mechanisms of afterimages: From networks to cortical layers

Afterimages are common visual illusions that have long attracted scientific interest, yet their neural mechanisms remain little understood. We used high-spatial-resolution fMRI to investigate human wh...

www.biorxiv.org

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Dan Handwerker @danielhandwerker.bsky.social · Aug 22

"The NIH pilot Science of Science Scholars Program provides an opportunity for experienced science of science researchers to analyze internal NIH administrative data." "...special volunteer for a one-year term (potentially renewable). Scholars may work remotely." dpcpsi.nih.gov/oepr/pilot-n...

Pilot NIH Science of Science Scholars Program | DPCPSI

As the largest public funder of biomedical research in the world, NIH is the driving force behind decades of advances that have expanded scientific knowledge and improved health. Now, NIH is seeking n...

dpcpsi.nih.gov

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Dan Handwerker @danielhandwerker.bsky.social · Aug 20

Some subject variables such has age or clinical conditions can systemically may vary with dropout: head motion, heavy breathing, head size, metal in mouth...
Suggest calculating voxelwise & ROIwise TNSR (mean/ detrended stdev). If TSNR varies with the behavioral variable, that's a likely cause. 2/2

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Dan Handwerker @danielhandwerker.bsky.social · Aug 20

One possibility is signal dropout. OFC & accumbens are both in areas susceptible to dropout. If an area has significantly less signal or signif more noise, I'd expect all correlations to that area to drop. 1/2

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Reposted by Dan Handwerker

Tomer Ullman @tomerullman.bsky.social · Aug 19

trying this with GPT-5 and charting new frontiers in gaslighting

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Dan Handwerker @danielhandwerker.bsky.social · Aug 15

"In August 2025, BLS announced larger than usual monthly revisions to estimates of employment change in both May and June 2025; nearly half of these employment revisions were due to revisions in government employment (largely in local government education and state government education)."

Elizabeth Weber Handwerker @elizwebhand.bsky.social · Aug 15

I wrote a 2 page overview of CES Monthly Revisions, at www.congress.gov/crs-product/...

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Dan Handwerker @danielhandwerker.bsky.social · Aug 7

The 4% of survey respondents who agree the Earth is flat, but don't disagree that the Earth makes a yearly orbit around the Sun are either messing with the poll or were really confused by the questions.

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Dan Handwerker @danielhandwerker.bsky.social · Aug 6

Nice work by @yoichimiyawaki.bsky.social showing the fMRI hemodynamic response contains enough info to decode stimulus type within 2sec. Happy to have helped with this project.
www.biorxiv.org/content/10.1...

Rapid decoding of neural information representation from ultra-fast functional magnetic resonance imaging signals

High spatio-temporal resolution is crucial for neuroimaging techniques to improve our understanding of human brain function. While the fMRI signal is slow and shows a spread in latencies over space, t...

www.biorxiv.org

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Dan Handwerker @danielhandwerker.bsky.social · Aug 4

"Mind Fixers" by Anne Harrington. Expansive and critical history of biological psychiatry. Uneven at points and I have critiques of some claims, but still a good read.

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Dan Handwerker @danielhandwerker.bsky.social · Aug 4

Currently reading "Until Proven Safe: The history & future of Quarantine" by Nicola Twilley & Geoff Manaugh. Great history that leads to more questions than easy answers.

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Reposted by Dan Handwerker

layerfmri.bsky.social @layerfmri.bsky.social · Aug 4

A series of talks on 7T (f)MRI from the SIEMENS UHF user meeting in Frankfurt are now online:
www.magnetomworld.siemens-healthineers.com/clinical-cor...

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Dan Handwerker @danielhandwerker.bsky.social · Aug 4

For the pubic in-person conference, what's the duration of the schedule each day? (i.e. 9AM-5PM?) Is there a registration cost?

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Reposted by Dan Handwerker

Emily G. Jacobs @emilyjacobs.bsky.social · Aug 1

We’re hiring! Pls share widely:

In conjunction w/ the @bowers-wbhi.bsky.social, my team is recruiting a full-time clinical research coordinator to assist with research efforts at UC Santa Barbara. 1-2 yrs experience in MRI data collection preferred.

Submit apps to: recruit.ap.ucsb.edu/JPF02974

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