Alex Shackman
@ajshackman.bsky.social
2.1K followers 650 following 1.2K posts
Laboratory for Affective & Translational Neuroscience, University of Maryland | shackmanlab.org | affective neuroscience | "pessimism of the intellect, optimism of the will.”
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ajshackman.bsky.social
Clay wins. The last iteration of his lab website was cool. This even cooler.
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tedmccormick.bsky.social
Shared courtesy of my Penn History colleague, Ben Nathans
Image: A variation on Benjamin Franklin’s “Join, or Die” engraving, originally published in the Pennsylvania Gazette in 1754. Each segment of the snake has the name of a university sent Trump’s “compact”: Texas, AZ, Vanderbilt, USC, Dartmouth, UVA, Brown, Penn, MIT.
Reposted by Alex Shackman
danahoule.bsky.social
Chicagoland is a friendly, safe, vibrant, & fun place. I’m very happy my kids have grown up in the Rogers Park neighborhood of the city, & in Evanston. They’re both wonderful places.

But ICE is attacking us. People are doing everything possible to protect their neighbors. But it’s hard.
Reposted by Alex Shackman
ajshackman.bsky.social
9/n. Another puzzle piece: #BLA NotJust #B$T Differential Recruitment of Competing Valence-Related Amygdala Networks during Anxiety www.cell.com/neuron/pdfEx...
www.cell.com
ajshackman.bsky.social
Great discussion: jingle/jangle, precision of nomenclature, what is arousal, dissociable flavors of arousal, weak coherence of emo response channels, boomerang-shaped norm IAPS SAM ratings, limitations of signatures & Ianetti/Apkarian critique, etc.
ajshackman.bsky.social
psycnet.apa.org/doiLanding?d... How attention and working memory married and divorced, with JEP: HPP as the witness.
Olivers, Roelfsema, Soto & Woodman (2025).
APA PsycNet
psycnet.apa.org
Reposted by Alex Shackman
albertsonb2.bsky.social
My all time favorite Dolly Parton quote - if you feel like sharing yours, it's been a day...

“I'm not offended by all the dumb blonde jokes because I know I'm not dumb—and I'm not blonde either.”
Reposted by Alex Shackman
miriforbes.bsky.social
We’ve just published another video on HiTOP that tries to flesh out a bit more how the framework can be helpful in research: youtu.be/q0jOi_Nl1yo

We hope it’s useful, and are keen to hear any feedback

Thanks again so much to @tashtc.bsky.social for all of her hard work creating this video series ✨
Using HiTOP in Research
YouTube video by HiTOP
youtu.be
ajshackman.bsky.social
Worth re-reading. #Nibble
ajshackman.bsky.social
8/n. Yet, in contrast to work in humans and animals outside the scanner, imagers have yet to tackle this fundamental question. Why? Generally, the ITI contributes to the implicit baseline in std 1st-level fMRI GLM's, and std (uncalibrated) fMRI is insensitive to slow signals (1/f noise), h/t RikH
ajshackman.bsky.social
6/n. There is something important and interesting about this persistent state of elevated defensive responding, likely reflecting the fact that the ITI is not just 'dead-time' between cues,
ajshackman.bsky.social
5/n. And Lissek's patients, during the Pavlovian threat conditioning ITI (outlier dots on the left-most portion of the patient panels)
ajshackman.bsky.social
4/n. Or dispositionally anxious monkeys in the minutes following a threat encounter ... shackmanlab.org/wp-content/u...
ajshackman.bsky.social
2/n. My mind goes to videos of people traversing haunted houses (or watching a horror movie), in the moments between jump scares (YT search for Ellen DeGeneres & Andy & Haunted House). e.g. www.youtube.com/watch?v=ZXZ6...
Andy and Amy's Haunted House
YouTube video by TheEllenShow
www.youtube.com
ajshackman.bsky.social
1/n. #FearAndAnxiety #Mice. I'm currently obsessed with Fig S1 from Wang...& Tejeda '24. Check out the persistent freezing in the CS+ ITI's during acquisition. Does anyone have sharable video of something similar in rats or mice?
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altnoaa.bsky.social
Antifa Gang Tattoo Identification
Radical symbols may include “AA” (may include numbers like 82nd), a screaming eagle (may include numbers like 101st), or cryptic Latin like “De Oppresso Liber” (translation: definitely plotting). Learn to ID Antifa™!