Dan Handwerker

@danielhandwerker.bsky.social

1572 Followers 382 Following

Neuroscience & fMRI methodology researcher. Views are my own.

Rabbi Stuart Kelman officiating a wedding. R. Kelman is in the center with the bridge on the left and the groom on the right.
Fig 8 from the above publication (https://www.sciencedirect.com/science/article/pii/S1053811923002896 ) shows differences across pipelines, but more large-scale similarities. Some of the pipelines seemed to have errors that flipped the sign of the same maps, but they are even more similar if this mistake was fixed.
A colorbar from -99.5 to +99.5 that goes from black->purple->green->yellow->orange->red but with uneven spacing between colors so that positive changes pop more and even positive changes close to zero pop more than negative changes close to zero.
Figure 2 from Badre TICS 2008 "Cognitive control, hierarchy, and the rostro–caudal organization of the frontal lobes" Figure caption starts "Theoretical accounts of the rostro–caudal gradient in the PFC." and continues with more description.
Subplots a & b from figure 7 of https://www.biorxiv.org/content/10.64898/2026.03.19.712948v1 Bar graphs of prediction accuracy for session 1 and 2. NORDIC doesn't alter prediction accuracy. GSR reduces prediction accuracy and tedana increases prediction accuracy.
Figure 5 from https://www.biorxiv.org/content/10.64898/2026.03.19.712948v1 Left side is a scatter plot of runs of TSNR vs pBOLD. The top left quadrant is low pBOLD and high TSNR and the bottom right quadrant is high pBOLD and low TSNR. The right side of the figure show seed-based correlations from 6 example runs from those two quadrants & showing the effects mentioned in the main text of this post.
Figure 4 of https://www.biorxiv.org/content/10.64898/2026.03.19.712948v1 Bar plots of TSNR and pBOLD for Basic, GSR, and tedana pipeline with and without NORDIC.
Figure 1 from https://www.biorxiv.org/content/10.64898/2026.03.19.712948v1 Four subplots with scatterplots of covariance between pairs of echoes for the same ROIs. The left two plots show a slope of 1 for simulated data and very close to 1 for real data. The right two plots show a slope that is the ratio of the differences in echo times for simulated and real BOLD dominated data.
Five channukiot with all 8 candles lit.
Four Channukiot lit for the first night of Channukah
A slide from a presentation by Chris Tailby. It shows their metric of language lateralization in a normative population that can be used to flag non-normative lateralization patterns in patient who can then be flagged for manual review.
Text copied from website on April 7, 2025 stating "Recruitment of new postbacs has resumed. Please read program information below and use the 'Start your application' link to apply."
A screen shot of the google search results for "pronounce santiago ramon y cajal" that shows and has audio for "san tee aa gow ruh mown wai kuh jaal"
Page 122 from the Johns Hopkins 1970 yearbook. It includes a picture of a "Playboy bunny" and text that includes "This fall, the undergraduate school at Hopkins is finally going to admit that women are intelligent creatures. For the first time women will be admitted in significant numbers. Hopkins should benefit from the increased intellectual level of its students due to the increased pool from which students will be drawn. The atmosphere should be a little less artifical and a little more conducive to life. Those who beleive int he premise that women have the right to participate on an equal basis with other people can certainly record an advance. Whether or not one can call it a victory will depend on the number of people who view coeds as merely a convenience for the male students already on campus."
A logo for the NIMH Cohort Program for Advancing Scientific Excellence (CPASE) and text that is already in the message.