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Christos Constantinidis

@cconstan.bsky.social
2.8K followers 1.4K following 275 posts

Professor of Biomedical Engineering and Neuroscience. Neural basis of cognition, cognitive development, deep brain stimulation. lab.vanderbilt.edu/constantinidis-l…

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Christos Constantinidis @cconstan.bsky.social · 16/09/2026
After last year's collapse of NIH funding rates I thought things couldn't get any worse. Shifting to multi-year awards could mean that fewer funds would be needed to pay already active grants in 2026. I was wrong. With less than a month left in the fiscal year we are on pace for a new all time low.
Graph from https://grantwitness.org/nih/analyses/agency-pulse-nih-grantmaking
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Christos Constantinidis @cconstan.bsky.social · 22/08/2026
Classes are starting this week. From Twitter.
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Christos Constantinidis @cconstan.bsky.social · 23/07/2026
Watching the Odyssey with the lab
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Christos Constantinidis @cconstan.bsky.social · 19/07/2026
For those who may be wondering: Google Gemini is still not conscious.
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Christos Constantinidis @cconstan.bsky.social · 28/06/2026
bioRxiv blocked me 😥 Did I read too many preprints?
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Christos Constantinidis @cconstan.bsky.social · 29/05/2026
In Washington DC, for the AAAS Fellows induction ceremony
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Christos Constantinidis @cconstan.bsky.social · 08/05/2026
Congratulations Dr. Wang
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Christos Constantinidis @cconstan.bsky.social · 23/04/2026
Haha this is great
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Christos Constantinidis @cconstan.bsky.social · 04/04/2026
Decoding of task variables again showed variability and task-specific patterns: improved spatial match-nonmatch task decoding, little change in object match-nonmatch task decoding, and disappearance of a saccade bias in the object choose-match task. (9/10)
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Christos Constantinidis @cconstan.bsky.social · 04/04/2026
Firing rate analysis recapitulated the human studies. There was no consistent change with training beyond a slight trend of increase in baseline; instead, it moved in different directions by task. A significant decrease was present during the choice epoch across tasks (6/10)
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Christos Constantinidis @cconstan.bsky.social · 04/04/2026
We introduce a behavioral metric of progress in task acquisition we term "Drop in Performance" (DIP) at trial reversals. As subjects learned the stimulus-reward rule, DIP magnitude decreased significantly across all subjects and tasks. (4/10)
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Christos Constantinidis @cconstan.bsky.social · 31/03/2026
Great, continuous submission for NIH applications is over ===
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Christos Constantinidis @cconstan.bsky.social · 26/03/2026
Incredibly honored to be named a Fellow of the American Association for the Advancement of Science. This distinction recognizes the work of my students and trainees over the years. Congratulations to the other Vanderbilt faculty elected AAAS Fellows as well.
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Christos Constantinidis @cconstan.bsky.social · 21/03/2026
Brain blast in Nashville today!
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Christos Constantinidis @cconstan.bsky.social · 07/03/2026
Very happy to announce that my student Zhengyang Wang successfully defended his dissertation, today. Congratulations Dr. Wang!
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Christos Constantinidis @cconstan.bsky.social · 30/01/2026
Aurora over Swedish Forest apod.nasa.gov/apod/ap22032...
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Christos Constantinidis @cconstan.bsky.social · 29/12/2025
When we calculated decoding accuracy of populations of neurons sampled from different trials (or “pseudo-populations”, commonly used in neurophysiology) and tested them with neurons recorded simultaneously, only a subtle performance decrease was evident (12/10)
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Christos Constantinidis @cconstan.bsky.social · 29/12/2025
However, we also show that such off-states are relative decreases in firing rate rather than absolute “gaps” in spiking. Activity across the network continued to maintain information about the stimulus being remembered even during off states (11/10)
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Christos Constantinidis @cconstan.bsky.social · 29/12/2025
In this article we document “The Asynchronous State” of Working Memory. In single trials, individual neurons may not exhibit persistent activity, however populations of ~100 neurons are sufficient to generate activity elevated above the baseline for the entire delay period (8/10)
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Christos Constantinidis @cconstan.bsky.social · 20/10/2025
Vanderbilt is not rejecting the Compact on higher education.
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Christos Constantinidis @cconstan.bsky.social · 13/10/2025
Study section would have wrapped up this week. No idea when it will restart after the government shutdown.
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Christos Constantinidis @cconstan.bsky.social · 17/09/2025
Open positions in Vanderbilt BME!
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Christos Constantinidis @cconstan.bsky.social · 09/09/2025
We have already been using it in human and animal experiments! (7/10)
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Christos Constantinidis @cconstan.bsky.social · 09/09/2025
The development workflow is illustrated below (5/10)
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Christos Constantinidis @cconstan.bsky.social · 26/07/2025
Christos lab, summer 2025 edition. Wonderful group to work with.
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Christos Constantinidis @cconstan.bsky.social · 21/02/2025
John Singer Sargent. Staircase in Capri (1878).
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Christos Constantinidis @cconstan.bsky.social · 16/02/2025
The Act Of Faith (1960) - René Magritte
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Christos Constantinidis @cconstan.bsky.social · 08/02/2025
From Twitter:
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Christos Constantinidis @cconstan.bsky.social · 08/02/2025
From Twitter/X
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Christos Constantinidis @cconstan.bsky.social · 05/02/2025
Can't wait to get a hold of that
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Christos Constantinidis @cconstan.bsky.social · 01/01/2025
DALLE's effort for a Happy-2025-banner for our lab. Happy New Year everybody!
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Christos Constantinidis @cconstan.bsky.social · 24/12/2024
I have a theory of why Trump wants to buy Greenland. It's the accursed Mercator projection! In most maps Greenland appears much larger than the US and the same size as the entire continent of Africa. In reality, it is about the size of Algeria. I predict Trump would lose interest if he found out.
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Christos Constantinidis @cconstan.bsky.social · 11/12/2024
Good Lord
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Christos Constantinidis @cconstan.bsky.social · 07/12/2024
Andrew Wyeth. Christina's World (1948).
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Christos Constantinidis @cconstan.bsky.social · 03/12/2024
Snow today
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Christos Constantinidis @cconstan.bsky.social · 01/12/2024
David Hockney. Early Morning, Sainte-Maxime (1969)
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Christos Constantinidis @cconstan.bsky.social · 30/11/2024
It's been three weeks since I moved to BlueSky as my go-to social network and it's been a relief to be able to check research news without having Elon's hot take of the day shoved to the top of my feed. At the same time, I've decided not to deactivate my Twitter/X account but continue using it.
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Christos Constantinidis @cconstan.bsky.social · 27/11/2024
The narrows. Jef Bourgeau (2023).
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Christos Constantinidis @cconstan.bsky.social · 23/11/2024
Me too!
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Christos Constantinidis @cconstan.bsky.social · 23/11/2024
Let's run a poll!
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Christos Constantinidis @cconstan.bsky.social · 23/11/2024
I tried it: “Given what you know about me, create an image of my life” I have to say, it's spot on!
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Christos Constantinidis @cconstan.bsky.social · 22/11/2024
National geographic. Pictures of the year, 2024.
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Christos Constantinidis @cconstan.bsky.social · 16/11/2024
The Lovers II (1928) René Magritte
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Christos Constantinidis @cconstan.bsky.social · 15/11/2024
Camille Pissaro, The Avenue, Sydenham 1871
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Christos Constantinidis @cconstan.bsky.social · 13/11/2024
Birch Forest I, 1902 by Gustav Klimt www.gustav-klimt.com/assets/img/p...
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Christos Constantinidis @cconstan.bsky.social · 12/11/2024
Faculty position #2: apply.interfolio.com/156190
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Christos Constantinidis @cconstan.bsky.social · 12/11/2024
Come join us! Open faculty positions at Vanderbilt in computational biomedical engineering / neuroscience. Position #1: apply.interfolio.com/156324
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