Reposted by Uma Karmarkartor @torwager.bsky.social · 14/10/2026A new fMRI study just out on precision functional mapping of imagined and experienced pain, led by Michael Sun (Sun et al., 2026, Nature Communications). How strongly does imagining pain activate nociceptive representations in the brain? doi.org/10.1038/s41... Thread below 👇 13413
Uma Karmarkar @umakarma.bsky.social · 22hStudents abandoned the AI tutor when it shifted from giving answers to Socratic-style guided questions. something something intrinsic vs. extrinsic motivation (Full disclosure : Since HBS, my teaching has rested HEAVILY on case and general Socratic-style interactive methods.) 030
Reposted by Uma KarmarkarNature Reviews Psychology @natrevpsychol.nature.com · 22hEmpathy as a dyadic process Review by Shir Genzer & Anat Perry FREE to access (with account registration & login) for one month! go.nature.com/4s8EWsT #psychology #psychscisky 041
Reposted by Uma KarmarkarQiaoli Huang @qiaoli-huang.bsky.social · 14/10/2026Very happy to share our new work. Do our eye movements reveal how we structure information in working memory? We found that eye movements adapt to memory demands, shifting from sequential sampling during encoding to replay-like revisitation during maintenance. dx.plos.org/10.1371/jour...dx.plos.orgEye movements reflect capacity-dependent organization of working memoryHuman working memory is capacity-limited, requiring information to be actively organized to support efficient encoding and maintenance. This study shows that spontaneous eye movements track latent mem... 05923
Uma Karmarkar @umakarma.bsky.social · 23hAlso - no fans/vents. So there's water everywhere, and nowhere for the humidity to go. Which is probably why even the high end places now have water stains on the ceilings/walls and mold in the grout and corners. 1120
Reposted by Uma Karmarkardarth™️ @darthbluesky.bsky.social · 13/10/2026there are now six Platonic solids i do not make the math rules 1297984
Uma Karmarkar @umakarma.bsky.social · 12/10/2026Our appreciation for the wonderful work done by early career trainees that won them the 2026 Caltech Chen Center Travel Awards for the @socforneuroecon.bsky.social annual conference 041
Uma Karmarkar @umakarma.bsky.social · 12/10/2026Colin - I screwed up the link on the first post about this - could you re-quote the new one? Sorry! 000
Uma Karmarkar @umakarma.bsky.social · 12/10/2026Delighted to announce Lusha Zhu as the 2026 @socforneuroecon.bsky.social mid-career awardee - absolutely wonderful to see someone who I first encountered as a grad student get this kind of recognition 030
Uma Karmarkar @umakarma.bsky.social · 12/10/2026Congratulations to Sarah Moreno Rodriguez for receiving the Best Dissertation Award this year! @socforneuroecon.bsky.social 061
Uma Karmarkar @umakarma.bsky.social · 12/10/2026The other best paper winner, also featured in the keynote lecture www.nature.com/articles/s41... 040
Uma Karmarkar @umakarma.bsky.social · 12/10/2026We had two (!!) best paper winners at @socforneuroecon.bsky.social www.nature.com/articles/s41... 160
Uma Karmarkar @umakarma.bsky.social · 12/10/2026My favorite time of year - posting the @socforneuroecon.bsky.social awards winners! Congrats to Zhihao Zhang and @carocharp.bsky.social for their well-deserved early career awards! 051
Uma Karmarkar @umakarma.bsky.social · 12/10/2026My pleasure - I didn't want to respond directly on your thread, because it's entirely possible it's different for us vs. other schools! 010
Uma Karmarkar @umakarma.bsky.social · 12/10/2026ALSO! Read our doctoral program websites! Rady hosts two great docs from @kennethcwilbur.bsky.social about why/how to apply for PhDs (rady.ucsd.edu/programs/phd...) And @drpop.bsky.social has amazing advice for writing marketing phd apps www.linkedin.com/pulse/ready-...linkedin.comReady to Apply? A Final Check Before You Submit Your Marketing PhD ApplicationsIf you’re planning to apply to Marketing PhD programs this fall, you may be reaching the point where the process suddenly feels very real. You’ve researched programs. 041
Uma Karmarkar @umakarma.bsky.social · 12/10/2026Ooh, this differs between fields. Consumer behavior (marketing) PhDs programs are often "collective"; students are accepted by the department (not individual faculty.) If reaching out, ask research questions & ask about the group, moreso than asking if that prof is accepting students. 230
Uma Karmarkar @umakarma.bsky.social · 12/10/2026Another SNE highlight: @carlosbrody.bsky.social's keynote centering work identifying the "neurally inferred time of commitment (nTc)" Basically, they "read" the moment when the brain commits to a choice (not necessarily temporally coupled to choice behavior!) www.nature.com/articles/s41...nature.comTransitions in dynamical regime and neural mode during perceptual decisions - NatureSimultaneous recordings were made of hundreds of neurons in the rat frontal cortex and striatum, showing that decision commitment involves a rapid, coordinated transition in dynamical regime and neura... 062
Uma Karmarkar @umakarma.bsky.social · 11/10/2026I usually present "final" results, but this time I showed findings that added up to a puzzle, just because I thought it was a neat problem to think about. And smart people got super engaged! They gave me 6+ theories, with different computational models to test! 🤩 Most productive conference EVAR. 080
Uma Karmarkar @umakarma.bsky.social · 11/10/2026Just returning home from the fantastic (as usual) neuroecon (SNE) meeting in Pasadena. Hilariously, I accidentally co-opted a bunch of famous & brilliant scientists at the poster session into serving as my own sort of "lab meeting" about an early-stage project. 190
Reposted by Uma Karmarkarc0nc0rdance @c0nc0rdance.bsky.social · 17/09/2023In my mind, I picture wombats as badger or possum sized, but they're ... um ... not. 802203534
Reposted by Uma KarmarkarBrian Sweis @brianmsweis.bsky.social · 09/10/2026As a field, do we think Prof Schultz’s own #dopamine neurons are spiking, dipping, or staying the same right now? 🖼️ 🧠 #SNE2026 @socforneuroecon.bsky.social 2133
Uma Karmarkar @umakarma.bsky.social · 07/10/2026Ah, I heard this talk, but missed when the paper actually came out. LLMs aren't ready to be used as "humans" for social science research. Congrats to the extraordinary list of authors! www.science.org/doi/10.1126/...science.orgDigital twins are funhouse mirrors: Five systematic distortionsScientists and practitioners are aggressively moving to deploy digital twins—large language model (LLM)-based models of individuals—across social science and policy research. We conducted 19 preregist... 0100
Reposted by Uma KarmarkarSteve Mullis @stevemullis.net · 05/10/2026[car dealership waiting room] Me: [chanting] knobs, knobs- Other car buyers: knobs, KNOBS Car salesman: [pounding desk] KNOBS, KNOBS, KNOBS!forbes.comKnobs Returning To Some Automakers’ Vehicles, To The Relief Of ManyAuto companies are listening to the complaints of consumers, who want their knobs and buttons back. 21592721700
Uma Karmarkar @umakarma.bsky.social · 06/10/2026Aw, yay, I was wondering when this would happen! 😊 010
Uma Karmarkar @umakarma.bsky.social · 02/10/2026(see below - apparently a joke, but hey, the learning point stands, so I'm keeping the slide!) 010
Uma Karmarkar @umakarma.bsky.social · 02/10/2026Oooh, new slide for Monday's survey methods class. 470
Uma Karmarkar @umakarma.bsky.social · 02/10/2026Okay, Mint Royale is a terrific choice. The chorus in Official Chemical is "We give you what you want, we give you what you like", which ... yeah, that could last. 010
Uma Karmarkar @umakarma.bsky.social · 02/10/2026I love the idea of a song to mark sending out a manuscript but how do you choose? Anyway, we had an eleventh hour submission tonight, and this is next on the playlist, so: www.youtube.com/watch?v=2FS1...youtube.comDub Pistols Official ChemicalYouTube video by TheDubPistols 230
Uma Karmarkar @umakarma.bsky.social · 01/10/2026In our house, sunglasses are just part of daily gear. We've had a drawer of Knockarounds for years (frequently refilled as family, guests, and the ocean waves steal pairs for themselves.) Delighted to learn we're also supporting the home team 😎 today.ucsd.edu/story/inspir...today.ucsd.eduInspired by SoCal, UC San Diego Alumnus Makes Shades for EveryoneSometimes, it only takes a pair of broken sunglasses on a bright summer day to change your life. This is exactly what happened to Adam Moyer, MFA ’08. 020
Reposted by Uma KarmarkarMarius Vollberg @mariusvollberg.bsky.social · 01/10/2026Did you leave twitter? How much worse would it have been for everyone if you had stayed? New paper w/ Jörg Gross (out today in @nathumbehav.nature.com) shows that selfish *and* prosocial actors distort the social impact of their actions, with selfish-serving distortions showing greater contagion. 1166
Uma Karmarkar @umakarma.bsky.social · 01/10/2026Tell me again about how AI firms should be trusted to self-regulate. www.advocate.com/news/meta-ro...advocate.comMeta appoints anti-DEI and anti-LGBTQ+ conspiracy theorist Robby Starbuck as AI bias advisor<p>Robby Starbuck has been appointed as an AI bias advisor at Meta with the goal of making the company's chat bot less "woke."</p> 0165
Uma Karmarkar @umakarma.bsky.social · 30/09/2026Happy morning moment - citing a paper co-authored by someone from my college first-order-logic study group. (She is super famous, so easy to cite, but our fields don't often overlap.) 020
Uma Karmarkar @umakarma.bsky.social · 30/09/2026Can't speak to the others, but not unreasonable for a b-school depending on brand and subfield. 000
Uma Karmarkar @umakarma.bsky.social · 24/09/2026So I'd like to take a minute - just sit right there. 100
Reposted by Uma Karmarkarall-hallows-eve-ison steele, organic human person 🎃 @trulyaliem.bsky.social · 07/10/2025timeline cleanser 72701919
Reposted by Uma KarmarkarIra Hyman @irahyman.bsky.social · 22/09/2026My latest blog post. Based on some researchers who put googly eyes on a takeout food box to see if that would discourage seagulls from stealing your lunch. There's serious work on how animals track eyes and on trying to stop animals from taking food. www.psychologytoday.com/us/blog/ment...psychologytoday.comSeagulls Versus Googly EyesHave you ever had your lunch stolen by a gull or some other bird? In the battle to save your lunch, scientists may have discovered a secret weapon: googly eyes. 21510
Reposted by Uma KarmarkarJennifer Graham @jennrgraham.bsky.social · 20/09/2026Every intro to sociology class I teach gets this image. 101410312
Uma Karmarkar @umakarma.bsky.social · 20/09/2026Hear me out - "Well, aren't you a sassy horse?" feels like an excellent response to someone who has more of a comment than a question to a conference talk... 031
Uma Karmarkar @umakarma.bsky.social · 20/09/2026Also, that sudden chill you felt was a reminder your knee cartilage sent from beyond the grave 061
Reposted by Uma KarmarkarJohn Bull @garius.bsky.social · 05/09/2026The Cat Righting Reflex is the official name of the process cats use to automatically correct themselves mid-fall and land on their feet. It develops between 3 - 9 weeks of age, and is responsible for the greatest wikipedia gif of all time. 2643071496
Uma Karmarkar @umakarma.bsky.social · 14/09/2026Totally agree - and I have *such trust* in this creative team given their past work! 010
Uma Karmarkar @umakarma.bsky.social · 14/09/2026I was unaware that the Lower Decks guy made an animated series of my 3rd favorite* early arcade game of all time?! Am I going to get to see a chicken-horse tailsweep a bad guy? AM I? *1=Centipede, 2=Street Fighter. I am equivalently terrible at all of them though. 240
Reposted by Uma KarmarkarInstitute for Replication @i4replication.bsky.social · 08/09/20261/ What is the prevalence of personally identifiable information (PII) in author-collected data publicly shared in the social sciences? We audited 327 replication packages from 11 leading journals in economics, political science, and psychology Answer: surprisingly high 🧵 25537
Reposted by Uma KarmarkarShannon Burns, PhD @shannon47burns.bsky.social · 08/09/2026Are you studying human neuroscience broadly defined, and enjoy working with bright and motivated students? If so we'd love to see your application for this TT position at Pomona College! Review of applications begins on Oct 1. 02017