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Katrijn Schruers

@katschruers

PhD student in the Staresina Lab @University of Oxford Interested in brain plasticity, translational research, neuro-imaging, sleep, learning and memory.

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12.12.2024
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Latest posts by Katrijn Schruers @katschruers

Check out our new paper! We evaluate what we know (and don't know) about the link between memory consolidation during sleep and next-day learning πŸ‘‡

19.11.2025 18:42 πŸ‘ 21 πŸ” 9 πŸ’¬ 0 πŸ“Œ 0
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Semantic Tuning of Single Neurons in the Human Medial Temporal Lobe The Medial Temporal Lobe (MTL) is key to human cognition, supporting memory, emotional processing, navigation, and semantic coding. Rare direct human MTL recordings revealed concept cells, which were ...

🚨Preprint: Semantic Tuning of Single Neurons in the Human Medial Temporal Lobe

1/8: How do human neurons encode meaning?
In this work, led by Katharina Karkowski, we recorded hundreds of human MTL neurons to study semantic coding in the human brain:

doi.org/10.1101/2025...

27.10.2025 15:31 πŸ‘ 82 πŸ” 39 πŸ’¬ 3 πŸ“Œ 3

How does our brain learn that thunder follows lightning? We don't just remember two separate events; we build a predictive model to anticipate the world. My research dives into this very question: how we learn and predict the order of events. πŸ§΅πŸ‘‡ 1/9 #neuroscience #memory #sleep

16.06.2025 09:32 πŸ‘ 10 πŸ” 7 πŸ’¬ 1 πŸ“Œ 1
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Congrats to our amazing postdoc @mskehl.bsky.social for their fantastic talk at the REPLAY conference in Cardiff! 🧠 Their work on "Human ripples facilitate memory consolidation by reactivating learning-related neurons" sparked many great discussions. Proud lab cheering him on!

30.05.2025 18:29 πŸ‘ 10 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

I’m looking for a postdoc and RA for an ERC-funded project β€œSLEEPAWAY: Forgetting unwanted memories in sleep”. You’ll use MEG/EEG and fMRI to understand how the sleeping brain remembers and forgets. PLEASE REPOST 😊

Postdoc: tinyurl.com/vr5thp7s
RA: tinyurl.com/ycyzkatc

13.05.2025 11:21 πŸ‘ 48 πŸ” 69 πŸ’¬ 0 πŸ“Œ 1

Thank you Mel, so excited it’s out there!

21.05.2025 16:45 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Sleep regularity index as a novel indicator of sleep disturbance in stroke survivors: a secondary data analysis - Scientific Reports Scientific Reports - Sleep regularity index as a novel indicator of sleep disturbance in stroke survivors: a secondary data analysis

Just published my first paper!
Really grateful to everyone at the plasticity lab @oxcin.bsky.social who made this possible.

huge thanks to my co-authors β€” couldn’t have done it without you.

If you want to check it out:
πŸ“„ paper: www.nature.com/articles/s41...

21.05.2025 14:51 πŸ‘ 9 πŸ” 5 πŸ’¬ 0 πŸ“Œ 2
An infographic summarising the methods and findings of the RISES Study. Images of stars, the moon, and people sleeping with text as follows. 
Summary: Sleep regularity is disturbed post-stroke, and may influence well-being. Sleep regularity: The sleep regularity index compares  sleep state (i.e. sleep or wake) at time points across different days, giving a score of sleep regularity. Less regular sleep has been associated with increased health risks. Population:  Data was used from 162 stroke survivors, and 60  controls who had not had a stroke. Methods: Sleep was assessed using a sleep watch,  worn at home for a minimum of 5 days, and a questionnaire about subjective sleep quality. The stroke group also completed questionnaires for depression, disability, and quality of life. Findings: Stroke survivors had significantly lower sleep regularity compared to the control group. In the stroke survivor group less regular sleep was associated with worse depression scores, and more regular sleep was associated with higher reports of quality of life. Implications: This study has identified the usefulness of using sleep regularity as a metric for post-stroke sleep research. The findings highlight a potential target for improving post-stroke quality of life. Funding: Funding: Wellcome Trust, and Oxford Health BRC. Reference: Reference: Schruers, K.B., Weightman, M., Guttesen, A.Γ‘.V. et al. Sleep regularity index as a novel indicator of sleep disturbance in stroke survivors: a secondary data analysis. Sci Rep 15, 17510 (2025). https://doi.org/10.1038/s41598-025-01332-4

An infographic summarising the methods and findings of the RISES Study. Images of stars, the moon, and people sleeping with text as follows. Summary: Sleep regularity is disturbed post-stroke, and may influence well-being. Sleep regularity: The sleep regularity index compares sleep state (i.e. sleep or wake) at time points across different days, giving a score of sleep regularity. Less regular sleep has been associated with increased health risks. Population: Data was used from 162 stroke survivors, and 60 controls who had not had a stroke. Methods: Sleep was assessed using a sleep watch, worn at home for a minimum of 5 days, and a questionnaire about subjective sleep quality. The stroke group also completed questionnaires for depression, disability, and quality of life. Findings: Stroke survivors had significantly lower sleep regularity compared to the control group. In the stroke survivor group less regular sleep was associated with worse depression scores, and more regular sleep was associated with higher reports of quality of life. Implications: This study has identified the usefulness of using sleep regularity as a metric for post-stroke sleep research. The findings highlight a potential target for improving post-stroke quality of life. Funding: Funding: Wellcome Trust, and Oxford Health BRC. Reference: Reference: Schruers, K.B., Weightman, M., Guttesen, A.Γ‘.V. et al. Sleep regularity index as a novel indicator of sleep disturbance in stroke survivors: a secondary data analysis. Sci Rep 15, 17510 (2025). https://doi.org/10.1038/s41598-025-01332-4

πŸ“£ New paper alert! πŸ“£

πŸ”Ž The RISES Study looked at the sleep regularity index in stroke survivors compared to people who haven't had a stroke.

πŸ”— See a summary of our findings in our infographic below, and find the full paper here: rdcu.be/emZ09

@oxcin.bsky.social @ndcnoxford.bsky.social

21.05.2025 12:47 πŸ‘ 7 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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New paper out in SLEEP @sleepjournals.bsky.social!

In his study, Jude Thom shows how cortical regions excited by tDCS before sleep express more spindles during subsequent sleep. doi.org/10.1093/slee...

@oxexppsy.bsky.social @oxcin.bsky.social @ukri.org

29.04.2025 09:53 πŸ‘ 25 πŸ” 10 πŸ’¬ 0 πŸ“Œ 0
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Research Assistant/Lab Manager at University of Oxford Looking for a new job opportunity in academia? Check out this job opening for a Research Assistant/Lab Manager on jobs.ac.uk!

We're excited to share that our lab is hiring for the position of Lab Manager/Research Assistant. A great opportunity to join our lab!

You can find full details and apply via the link below:
www.jobs.ac.uk/job/DMN515/r...

Please feel free to share this with anyone who might be interested!

07.04.2025 10:18 πŸ‘ 3 πŸ” 7 πŸ’¬ 1 πŸ“Œ 1
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Our final 2 lab members @pinchunc.bsky.social and Jude Thom did a fantastic job with their poster presentations at the final day of #CNS2025 in Boston today! It was a great way to wrap up the conference. An amazing showcase of everyones hard work!

01.04.2025 22:01 πŸ‘ 7 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Hi friends,

If you’re attending #CNS2025, come check out my poster (F5) tomorrow (April 1st) from 8-10am on my recent work with @bstaresina.bsky.social: Cortical Signatures of Hippocampal Ripples in Human Sleep.😴

Or just come say hi! πŸ™‹πŸ»β€β™€οΈπŸ™‹πŸ»β€β™€οΈπŸ™‹πŸ»β€β™€οΈ

@cogneuronews.bsky.social

01.04.2025 03:38 πŸ‘ 10 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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πŸŽ‰ Big shoutout to our amazing lab members who presented their posters at #CNS2025! πŸŽ‰

So great to see @mskehl.bsky.social , @manqisha.bsky.social , @xianhuihe.bsky.social and Mathew Thomas Kollamkulam showcasing their hard work and research! 🧠

Some behind-the-scenes shots of them in action πŸ‘‡

31.03.2025 18:57 πŸ‘ 11 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
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This was followed by another amazing Data Blitz by DPhil student @xianhuihe.bsky.social, who presented on β€˜Learning and sleep reshape the representational geometry of visual experiences’

29.03.2025 15:45 πŸ‘ 5 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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What a great start to #CNS2025!

@manqisha.bsky.social kicked of the first session with her Data Blitz on β€˜Coupled sleep rhythms in the human hippocampus support memory consolidation’

29.03.2025 15:45 πŸ‘ 7 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0

@pinchunc.bsky.social @bstaresina.bsky.social @simonfsoubeyrand.bsky.social @mskehl.bsky.social

29.03.2025 14:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Poster Session F

Poster F4: Human sleep spindles are directed by excitatory non-invasive brain stimulation -Thom, Jude

Poster F5: Cortical Signatures of Hippocampal Ripples in Human Sleep- Chen, Pin-Chun

29.03.2025 14:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Poster C48: Ripples facilitate human memory consolidation by driving reactivation of learning-related neurons - Kehl, Marcel S.

29.03.2025 14:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Poster C24: Learning and sleep reshape the representational geometry of visual experiences - He, Xianhui

29.03.2025 14:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

The Staresina Lab is ready for CNS 2025 in Boston!πŸ‡ΊπŸ‡Έ

If you are around come and check out our work at the following poster sessions:

Poster Session C
Poster C16: Coupled sleep rhythms in the human hippocampus support memory consolidation - Sha, Manqi

29.03.2025 14:18 πŸ‘ 11 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0

We start of the day with a datablitz by our amazing DPhil student Manqi Sha! Her talk is titled β€˜Coupled sleep rhythms in the human hippocampus support memory consolidation’ and will be held in the Grand Ballroom

29.03.2025 14:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Poster C58: Sleep predicts a hippocampal-cortical shift during memory recall - Thomas Kollamkulam, Mathew

29.03.2025 14:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0