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Chris Bird

@chrismbird.bsky.social

Memory researcher, University of Sussex

3,179 Followers  |  555 Following  |  15 Posts  |  Joined: 12.09.2023  |  1.9472

Latest posts by chrismbird.bsky.social on Bluesky

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Temporal dedifferentiation of neural states with age during naturalistic viewing - Communications Biology Movie fMRI data reveals age-related lengthening of neural states in visual and prefrontal regions, reflecting reduced temporal differentiation while preserved alignment with perceived events suggests stable coarse event segmentation.

The brain represents the world around us as a series of neural states - stable patterns of activity that change as we move from one event to the next.

New paper by @selmalugtmeijer.bsky.social showing that neural states get longer as people age. #PsychSciSky

nature.com/articles/s42003-025-08792-4

30.09.2025 16:03 β€” πŸ‘ 60    πŸ” 22    πŸ’¬ 4    πŸ“Œ 4

πŸ“£ Helpful thread about a great paper alert!

Okay - I am biased, but I am super proud of this paper and @dkvarga.bsky.social has done a truly awesome job of running this project (3 separate fMRI studies!). Thanks also to our amazing colleagues for their support.

04.09.2025 18:13 β€” πŸ‘ 12    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

😺 Feel free to reach out if you have any questions!

04.09.2025 14:12 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Hippocampal mismatch signals are based on episodic memories and not schematic knowledge | PNAS Prediction errors drive learning by signaling mismatches between expectations and reality, but the neural systems supporting these computations rem...

We make predictions based on general knowledge and/or specific memories. Different brain areas are active when these distinct predictions are violated – and hippocampus selectively responds to prediction errors based on episodic memory.

Cool work by @chrismbird.bsky.social @ayab.bsky.social et al!

25.08.2025 13:41 β€” πŸ‘ 94    πŸ” 22    πŸ’¬ 2    πŸ“Œ 0

Thanks Mariam!! This came out while I was on holiday, but we have a thread about the study on it's way...

04.09.2025 13:00 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Interestingly, I did the same today - AND IT WAS ONE OF YOUR PAPERS!!! Rather good it was too.

14.07.2025 20:22 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
OSF

Proud to share the first preprint of my PhD w/ @barense.bsky.social & Mursal Jahed:

β€œPutting the testing effect to the test in the wild: Retrieval enhances real-world memories and promotes their semantic integration while preserving episodic integrity”

See thread! 🧡 osf.io/preprints/ps...

19.06.2025 17:18 β€” πŸ‘ 32    πŸ” 12    πŸ’¬ 4    πŸ“Œ 1

Whoop! Nice one Antonia!

17.06.2025 13:35 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
OSF

New preprint! How do we integrate new information into prior knowledge? We find that existing knowledge enables rapid new learning but that interleaved replay during sleep promotes integration of new and old information. Modeling suggests a sleep context suppression mechanism.
osf.io/preprints/ps...

10.06.2025 12:36 β€” πŸ‘ 55    πŸ” 23    πŸ’¬ 1    πŸ“Œ 3
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Children in England growing up β€˜sedentary, scrolling and alone’, say experts Raising the Nation Play Commission report recommends ban on β€˜no ball games’ signs and raising digital age of consent to 16

It's such a shame this article is framed by the headline as being about screens, when actually its about the paucity of outdoor space for play, and lack of time within education settings to make the most of what little outdoor space there is. www.theguardian.com/society/2025...

11.06.2025 08:18 β€” πŸ‘ 48    πŸ” 18    πŸ’¬ 4    πŸ“Œ 0
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Medial temporal cortex supports object perception by integrating over visuospatial sequences Perception unfolds across multiple timescales. For humans and other primates, many object-centric visual attributes can be inferred β€˜at a glance’ (i.e…

Medial temporal cortex supports object perception by integrating over visuospatial sequences

www.sciencedirect.com/science/arti...

Looks like an interesting study from @dyamins.bsky.social and colleagues

11.06.2025 09:59 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Really nice study led by Claire Lancaster and supported by other brilliant Sussex colleagues - in particular former PhD student Jess Daly. Greebles task is sensitive to subtle perceptual deficits in APOE e4 carriers in mid-life (which get worse with age and number of e4 alleles).

11.06.2025 10:18 β€” πŸ‘ 6    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0
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We recently published a new paper investigating APOE effects in Cam-CAN @camcan-2010.bsky.social movie dataset. Examining various measures we failed to find any APOE effects in healthy individuals. You can read more about it in the paper doi.org/10.1177/2398... or the thread below

28.02.2025 15:46 β€” πŸ‘ 7    πŸ” 5    πŸ’¬ 1    πŸ“Œ 0

Nice to see you all πŸ‘‹πŸ»

27.02.2025 21:30 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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The BNS is delighted to present this first look at the 🧠 SPRING MEETING 🧠 2025 programme, and announce we've an 🚨 EXTENDED ABSTRACT DEADLINE (Feb 17th)! 🚨 All this great science for just a £15 registration fee. Or for free if your a BNS member. Visit www.the-BNS.org.
#neuroskyence
#psychscisky

29.01.2025 22:42 β€” πŸ‘ 16    πŸ” 8    πŸ’¬ 0    πŸ“Œ 4
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APOE4 and sedentary lifestyle synergistically impair neurovascular function in the visual cortex of awake mice Communications Biology - Lifestyle matters for genetic Alzheimer’s disease risk: In vivo imaging of mouse blood vessels and neurons shows that APOE4 reduces neurovascular function most in an...

New paper led by @silvia-anderle.bsky.social

Lifestyle matters for genetic Alzheimer’s disease risk: APOE4 reduces neurovascular function most in an already-stressed system, Β when neurons are active and mice do less exercise.

I'll tell you all about it! πŸ§ͺ #neuroscience #alzheimers

rdcu.be/d74uh

30.01.2025 15:12 β€” πŸ‘ 37    πŸ” 13    πŸ’¬ 3    πŸ“Œ 5
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Schemas, reinforcement learning and the medial prefrontal cortex - Nature Reviews Neuroscience A computational account of how schemas are learned through experience is lacking. In this Perspective, Bein and Niv synthesize schema theory and reinforcement learning research to derive computational...

Excited to share this perspective with @yaelniv.bsky.social about how schemas might be learned and instantiated via reinforcement learning, latent cause inference, and dimensionality reduction, and what's the medial prefrontal cortex might be doing for all of these www.nature.com/articles/s41...

07.01.2025 18:12 β€” πŸ‘ 143    πŸ” 50    πŸ’¬ 7    πŸ“Œ 1
Prizes

πŸ†The BNS Elizabeth Warrington Prize 2025 will be awarded for distinguished work in neuropsychology/neuroscience by a person at an early stage in their career. 🧠
Call for nominations now open!
Deadline: April 1st. ⏱️
More info: www.the-bns.org/prizes

#neuroskyence
#psychscisky

19.01.2025 13:38 β€” πŸ‘ 14    πŸ” 8    πŸ’¬ 0    πŸ“Œ 0

Nice one Lucy!!

12.06.2024 12:30 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Great work and top-notch thread skills from @kasiamojescik.bsky.social ! Please take a look if you're a fan of memory, aging, subjective experience, or all three! #PsychSkySci #neuroskyence

16.05.2024 13:17 β€” πŸ‘ 6    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Check out this epic sleep DRM false memory registered report from the amazing @matthewmakpsy.bsky.social! #neuroskyence #psychscisky #cognition

11.12.2023 12:28 β€” πŸ‘ 20    πŸ” 9    πŸ’¬ 0    πŸ“Œ 0
PNAS Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...

It was a joy to read this in a lab journal club. A really nice study with important implications for both event processing and decision making. And such a clever design! Top marks for all involved!

"Visual event boundaries restrict anchoring effects in decision-making"

#neuroskyence #PsychSciSky

29.11.2023 11:17 β€” πŸ‘ 9    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
neurosynth compose Neurosynth-Compose App

Attention neuroscientsts!

We just launched Neurosynth Compose: A free and open platform for neuroimaging meta-analysis. NS-Compose makes it easy to perform custom neuroimaging meta-analyses without leaving the browser.

It's live, check it out! compose.neurosynth.org

28.11.2023 22:52 β€” πŸ‘ 115    πŸ” 75    πŸ’¬ 5    πŸ“Œ 7

Hippocampal-cortical interactions during event boundaries support retention of complex narrative events Officially out in Neuron with
@charan-neuro.bsky.social

Brendan Cohn-Sheehy,
Mitchell Nguyen, Reesha Yadav, and James Spargo!:

authors.elsevier.com/a/1i3703BtfH...

08.11.2023 17:20 β€” πŸ‘ 60    πŸ” 31    πŸ’¬ 4    πŸ“Œ 1

Ever wonder why anesthesia makes you unconscious? We figured out a piece of that puzzle.

Anesthesia blocks sensation by cutting off communication within the cortex
picower.mit.edu/news/anesthe...
#Neuroscience

08.11.2023 18:08 β€” πŸ‘ 23    πŸ” 8    πŸ’¬ 0    πŸ“Œ 1

Are you a cognitive scientist with an interest in developing your own research line using neuroimaging as a tool, and in particular MRI and fMRI (at ultra high fields)? Come join the CN department at the FPN faculty of Maastricht University!!!

www.academictransfer.com/en/333964/as...

01.11.2023 12:23 β€” πŸ‘ 8    πŸ” 6    πŸ’¬ 0    πŸ“Œ 2
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We are pleased to announce that we are accepting nominations for 🌟The Lila R. Gleitman Prize for Early-Career Contributions to Cognitive Science 🌟

Visit cognitivesciencesociety.org/gleitman-pri... for details on the nomination and selection process. #GleitmanPrize #CogSci

19.10.2023 13:59 β€” πŸ‘ 24    πŸ” 16    πŸ’¬ 0    πŸ“Œ 3

Hello everyone
My first post on bluesky: I'm a cognitive neuroscience researcher working on the effects of physical exercise and sleep on our brains and memories.
Besides that I'm interested in European and global politics, elite sports (mainly swimming and trail running) and classical music.

18.10.2023 08:16 β€” πŸ‘ 16    πŸ” 5    πŸ’¬ 1    πŸ“Œ 0
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Tracking the Emergence of Location-based Spatial Representations in Human Scene-Selective Cortex Abstract. Scene-selective regions of the human brain form allocentric representations of locations in our environment. These representations are independent of heading direction and allow us to know w...

Hopefully dropping a new preprint next week by the amazing @akulsatish.bsky.social. Using MEG to reveal the oscillatory dynamics involved in spatial learning, building on our previous fMRI experiment by @samberens.bsky.social:

direct.mit.edu/jocn/article...

#neuroskyence #PsychSciSky #Cognition

13.10.2023 09:18 β€” πŸ‘ 24    πŸ” 7    πŸ’¬ 1    πŸ“Œ 0

Jumping on the bandwagon...

Hi I'm Hugo Spiers, PI of the Spatial Cognition Lab @ University College London. I research the neural basis of spatial navigation & memory. I play with VR, mobile apps, fMRI, GPS-tracking, agent based modelling, and recently fNIRS. I lack all skills in sourdough baking.

12.10.2023 11:51 β€” πŸ‘ 27    πŸ” 5    πŸ’¬ 1    πŸ“Œ 2

@chrismbird is following 20 prominent accounts