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Denis Chaimow

@denischaimow.bsky.social
66 followers 66 following 11 posts
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Reposted by Denis Chaimow
Romy Lorenz @romy-lorenz.bsky.social · 21/08/2026
Please share widely! 🚀 I am recruiting a PhD student for an exciting cross-species collaborative project using layer fMRI to investigate how interoception shapes cognitive control - Application deadline is: 1.10.2026 - Start: Jan 2027 www.mpg.de/26934670/phd...
mpg.de
PhD Position (m/f/d) | Ultra-High-Field Layer fMRI of Cognitive Control and Interoception
PhD Position in Ultra-High-Field Layer fMRI of Cognitive Control and Interoception
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Reposted by Denis Chaimow
bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 30/08/2025
Vascular draining confounds laminar decoding in fMRI www.biorxiv.org/content/10.1101/202…
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Reposted by Denis Chaimow
Romy Lorenz @romy-lorenz.bsky.social · 30/08/2025
What started as a journal club on layer decoding turned into a project thanks to @karolisdegutis.bsky.social. Our preprint challenges a widespread assumption in the field: MVPA is not immune to vascular confounds in laminar GE-BOLD decoding, as shown using a mechanistic laminar response model.
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Reposted by Denis Chaimow
Karolis Degutis @karolisdegutis.bsky.social · 30/08/2025
Happy to see this out: our new preprint shows that laminar GE-BOLD fMRI decoding isn’t immune to vascular draining biases. Simulations reveal false positives due to multivariate signal spread across layers, but oversampling + deconvolution can (sometimes) improve specificity.
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Reposted by Denis Chaimow
danielhaenelt.bsky.social @danielhaenelt.bsky.social · 01/08/2025
I’m happy to share that our manuscript on the cortical depth-dependency of the GE- and SE-BOLD point spread function at 7 Tesla is now available on bioRxiv! www.biorxiv.org/content/10.1...
biorxiv.org
Spatial specificity of the functional gradient echo and spin echo BOLD signal across cortical depth at 7 T
Functional magnetic resonance imaging (fMRI) at high magnetic field strengths (≥ 7 T) is a promising technique to study the functioning of the human brain at the spatial scale of cortical columns and ...
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Reposted by Denis Chaimow
Karolis Degutis @karolisdegutis.bsky.social · 25/06/2025
Very happy to share our work on the neural dynamics of visual working memory maintenance during sensory distraction; now out as a VOR on eLIife: elifesciences.org/articles/99290
elifesciences.org
Neural dynamics of visual working memory representation during sensory distraction
Dynamic shifts in neural coding combined with stable population subspaces enable visual areas to concurrently represent sensory inputs and working memory without mutual interference.
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Reposted by Denis Chaimow
Imaging Neuroscience @imagingneurosci.bsky.social · 17/03/2025
New paper in Imaging Neuroscience by Fakhereh Movahedian Attar, Nikolaus Weiskopf, et al: Short association fibres form topographic sheets in the human V1–V2 processing stream doi.org/10.1162/imag...
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Denis Chaimow @denischaimow.bsky.social · 20/02/2025
Excited to share our latest preprint: "Challenges in replicating layer-specificity of working memory processes in the human prefrontal cortex.”, where we attempted to replicate layer-specific fMRI findings in the human dlPFC during a working memory task. www.biorxiv.org/content/10.1...
biorxiv.org
Challenges in replicating layer-specificity of working memory processes in human dlPFC
Although working memory reliably activates the dorsolateral prefrontal cortex (dlPFC), the functional significance of its distinct cytoarchitectonic layers is not well understood in humans. A recent f...
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Reposted by Denis Chaimow
bioRxivpreprint @biorxivpreprint.bsky.social · 04/02/2025
Challenges in replicating layer-specificity of working memory processes in human dlPFC www.biorxiv.org/content/10.1101/202…
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