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Ewa Beldzik

@ewa-beldzik.bsky.social
158 followers 29 following 10 posts

Brain. Sleep. Drowsiness. Cognitive neuroscience. Assistant Professor @ Centre for Brain Research (brain.uj.edu.pl), Jagiellonian University in Krakow, Poland

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Ewa Beldzik @ewa-beldzik.bsky.social · 07/06/2026
Following a microsleep, arousal-promoting subcortical nuclei come back online in a beautiful sequence, restoring wakefulness and responsiveness. This video captures such a recovery in a drowsy participant performing an attention task. Details: www.biorxiv.org/content/10.64898/2026.05.26.728061v1
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Ewa Beldzik @ewa-beldzik.bsky.social · 01/06/2026
What happens when the brain slips into a microsleep? An example from a highly drowsy participant showing a brief loss of responsiveness (at time 0s). Details of the research: www.biorxiv.org/content/10.6...
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Reposted by Ewa Beldzik
bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 27/05/2026
A hypothalamic-brainstem activity sequence underlies arousal fluctuations during daytime drowsiness www.biorxiv.org/content/10.64898/20…
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Ewa Beldzik @ewa-beldzik.bsky.social · 25/03/2026
Curious how life adapts to extreme, rapidly changing environments? Lukas Krone is heading to the Arctic with the Oxford Centennial Expedition to study exactly that—and is raising funds to make it happen. www.gofundme.com/f/oxford-med... Good luck, Lukas!
gofundme.com
Donate to Oxford Medic on Arctic Svalbard Expedition, organized by Lukas Krone
Hi, my name is Lukas Krone, I am a neuroscientist and medical doctor, and t… Lukas Krone needs your support for Oxford Medic on Arctic Svalbard Expedition
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Ewa Beldzik @ewa-beldzik.bsky.social · 20/03/2026
Thrilled to be elected Co-Chair of the Sleep Regulation & Function #GRS with @d-manasova.bsky.social Can’t wait to shape a great program for early-career sleep scientists 🧠💤 Thanks to @nataliehauglund.bsky.social & Raquel for passing the torch! We’ll do our best to carry it forward!🔥 #SleepResearch
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Ewa Beldzik @ewa-beldzik.bsky.social · 17/03/2026
Amazing Gordon Research Conference on Sleep Regulation and Function in Galveston, TX—fantastic people, inspiring talks, and great discussions. Also, a lot of fun beyond the science.
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Ewa Beldzik @ewa-beldzik.bsky.social · 29/10/2025
Our paper on CSF, BOLD, pupil, and physiological measures in sleep deprivation and recovery sleep is finally out! 🎉 Congrats Zinong! www.nature.com/articles/s41...
nature.com
Attentional failures after sleep deprivation are locked to joint neurovascular, pupil and cerebrospinal fluid flow dynamics - Nature Neuroscience
Yang et al. show that moments of failed attention we experience after sleep deprivation reflect brief ‘sleep-like’ episodes in the brain, corresponding to a brain- and body-wide event with altered bra...
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Ewa Beldzik @ewa-beldzik.bsky.social · 13/07/2025
Thrilled to have organized and presented at the “Coping with Sleepiness” symposium at #IOP2025 in Krakow! A fantastic experience sharing the stage with @d-manasova.bsky.social, @jtegelbeckers.bsky.social and A. Domagalik — insightful talks and great discussions! 🧠💤✨
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Ewa Beldzik @ewa-beldzik.bsky.social · 15/06/2025
Learned so much @ #SLEEP2025 in Seattle. Great talks, fantastic conversations afterwards.
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Ewa Beldzik @ewa-beldzik.bsky.social · 04/04/2025
Great meeting #cns2025! Many thanks for organizers @cogneuronews.bsky.social. I enjoyed presenting the Data Blitz talk (www.youtube.com/watch?v=VUku...), poster, and meeting old and new friends!
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Reposted by Ewa Beldzik
Zinong Yang @ziy027.bsky.social · 19/11/2024
🎉Excited to share our latest work with @stephaniedwill.bsky.social @ewa-beldzik.bsky.social @lauradata.bsky.social + others 🥱Why does sleep deprivation have negative effects on behavior? We demonstrate that attentional failures caused by SD are coupled to large-scale brain fluid transport.
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Reposted by Ewa Beldzik
bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 15/11/2024
Attentional failures after sleep deprivation represent moments of cerebrospinal fluid flow www.biorxiv.org/content/10.1101/202…
biorxiv.org
Attentional failures after sleep deprivation represent moments of cerebrospinal fluid flow https://www.biorxiv.org/content/10.1101/2024.11.15.623271v1
Sleep deprivation rapidly disrupts cognitive function, and in the long term contributes to neurologi
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