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Marieke Weijs

@mariekeweijs

Postdoc at Neural Control of Movement Lab ETH Zurich - working on arousal, VR, biofeedback, pupillometry πŸ§ πŸ«€πŸ€Έ - moonlighting as a potter πŸŒ€

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Latest posts by Marieke Weijs @mariekeweijs

Speakers for ICON symposium on novel measurement & manipulation approaches for neuromodulatory systems! 
Sept 19, 
11:45 am
Room SΓ©

Speakers for ICON symposium on novel measurement & manipulation approaches for neuromodulatory systems! Sept 19, 11:45 am Room SΓ©

At #ICON? – Join us tomorrow to hear about novel measurement & manipulation approaches for neuromodulatory systems!
πŸ—“οΈSept 19,
πŸ•š11:45 am
🏫Room Sé

#ICON2025 #CogNeuro #AcademicSky #LocusCoeruleus #neuroskyence

18.09.2025 19:56 πŸ‘ 19 πŸ” 7 πŸ’¬ 1 πŸ“Œ 0
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Locus coeruleus fMRI response to transcutaneous auricular vagus nerve stimulation is coupled to changes in salivary alpha amylase Transcutaneous auricular vagus nerve stimulation (taVNS) has shown promise to non-invasively enhance memory in older adults and those with mild cognitive impairment (MCI) [1,2]. Evidence suggests this...

Excited to share our new findings: transcutaneous vagus nerve stimulation leads to increases in locus coeruleus activity, which correlate with changes in salivary alpha amylase in older individuals. #locuscoeruleus www.brainstimjrnl.com/article/S193...

25.06.2025 14:37 πŸ‘ 13 πŸ” 10 πŸ’¬ 1 πŸ“Œ 0
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New paper in Imaging Neuroscience by Ralph Andrews, Paul M. Dockree, et al:

Arousal and sustained attention fluctuate differently with respiration in younger and older adults

doi.org/10.1162/IMAG...

10.06.2025 09:00 πŸ‘ 12 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0
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New paper in Imaging Neuroscience by Paige Howell, Sanne Kikkert, et al:

Distinguishing the activity of adjacent somatosensory nuclei within the brainstem using 3T fMRI

doi.org/10.1162/imag...

19.05.2025 05:29 πŸ‘ 10 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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πŸ‘οΈEyes Wide Open🧠

πŸ—“Monday, May 19 – 7 PM πŸ‡¬πŸ‡§
πŸ“ SEIN, Hohlstrasse 355, ZΓΌrich
🎟️FREE ENTRY

➑️https://pintofscience.ch/event/eyes-wide-open

@pintsworld.bsky.social
@mariekeweijs.bsky.social
@ethz.ch
#Pint25 #pintCH

15.05.2025 10:48 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Thus pupil size self-regulation links to fundamental changes in brain function, which opens many questions of how pupil-based biofeedback could be applied in future clinical applications in psychiatric and neurological conditions.

16.05.2025 12:50 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Upregulation of pupil size was linked to increased cortical excitability and arousal, increased heart rate and reduced HRV compared to pupil size downregulation. P300 amplitudes were larger during down- than upregulation.

16.05.2025 12:50 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

πŸ‘€πŸ§ πŸ«€

In three experiments we show that volitional up- and downregulation of pupil size modulates

1) cortical excitability, as measured by TMS evoked motor evoked potentials ⚑
2) the 1/f spectral slope, a marker of cortical arousal 🧠
3) heart rate and HRV πŸ«€
4) the P300 in an oddball task πŸ”Š

16.05.2025 12:50 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Modulating cortical excitability and cortical arousal by pupil self-regulation - Nature Communications Weijs, Missura, Potok et al. showed in this study with brain stimulation and electrophysiological methods that self-regulation of pupil size via pupil-based biofeedback modulates cortical excitability...

www.nature.com/articles/s41...

Excited to see this out in @natcomms.nature.com today!

This paper builds on the lab's work on self-regulation of arousal through pupil-based biofeedback. We assessed several markers of cortical and cardiac arousal in a pure self-regulation and dual task setting.

16.05.2025 12:50 πŸ‘ 24 πŸ” 10 πŸ’¬ 1 πŸ“Œ 0
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Trait dissociation is associated with dissociative experiences arising from disrupted multisensory integration - Scientific Reports Scientific Reports - Trait dissociation is associated with dissociative experiences arising from disrupted multisensory integration

Really pleased that this paper from my PhD has been published in Nature Scientific Reports!

www.nature.com/articles/s41...

We used mixed reality to explore how manipulating multisensory integration leads to dis-ownership from the body and how those experiences relate to trait dissociation

15.04.2025 08:32 πŸ‘ 30 πŸ” 18 πŸ’¬ 2 πŸ“Œ 0

A starter pack I found missing πŸ‘“πŸ–₯️🌍🧠🩺

Immersive technologies - #VR, #AR, #XR, #spatialcomputing, #CG - for research (e.g., psychology, neuroscience) & medicine (diagnostics, therapy).

go.bsky.app/E9bhHvQ

Please let me know if you wanna be added - especially undergrad, grad, predoc researchers!

25.11.2024 09:21 πŸ‘ 55 πŸ” 16 πŸ’¬ 16 πŸ“Œ 1

I thought it could be nice to connect the community of researchers exploring body-brain interactions on bsky, so here is the Body-Brain Interactions Starter Pack! πŸ«€πŸ«πŸ‘€πŸ§  #neuroskyence #academicsky

Let me know if you would like to be added or know someone to add. Enjoy and share!

go.bsky.app/Fwqeu32

24.09.2024 20:30 πŸ‘ 119 πŸ” 64 πŸ’¬ 44 πŸ“Œ 6
Body-Brain Waves - 27th September '24 - Talk by Leah Banellis
Body-Brain Waves - 27th September '24 - Talk by Leah Banellis YouTube video by Antonio Criscuolo

Talk by @the-ecg.bsky.social postdoc Leah Banellis on our recent work linking gastric-brain coupling to mental health. www.youtube.com/watch?v=bCWu...

14.11.2024 09:00 πŸ‘ 23 πŸ” 4 πŸ’¬ 2 πŸ“Œ 0

Thread for those new to BlueSky. First of all, welcome. It feels like a safer space, doesn’t it? But also perhaps a bit disorienting initially? Here’s some tips for getting your bearings.

13.11.2024 17:59 πŸ‘ 4786 πŸ” 1279 πŸ’¬ 667 πŸ“Œ 229

Next up is a starter pack for neurobiology of stress researchers. Again I know I’m missing people so let me know if you want to be added to the list! #neuroscience #neuroskyence πŸ§ͺ🧠

go.bsky.app/Gmy2T32

13.11.2024 01:02 πŸ‘ 147 πŸ” 40 πŸ’¬ 30 πŸ“Œ 3

Some resources i've curated for the cognitive and computational neuroscience communities on bluesky! First, a twin set of starter packs. go.bsky.app/2n84SRM

13.11.2024 06:39 πŸ‘ 122 πŸ” 40 πŸ’¬ 18 πŸ“Œ 4
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Pupil self-regulation modulates markers of cortical excitability and cortical arousal The brain’s arousal state (i.e., central arousal) is regulated by multiple neuromodulatory nuclei in the brainstem and significantly influences high-level cognitive processes. By exploiting the mechan...

First post here! πŸ‘€πŸ§ πŸ«€

With my wonderful colleagues we showed that self-regulation of pupil size through pupil-based biofeedback modulates various markers of cortical excitability and arousal.

www.biorxiv.org/content/10.1...

#neuroskyence #eeg #neuroscience

13.11.2024 08:11 πŸ‘ 15 πŸ” 6 πŸ’¬ 1 πŸ“Œ 0