But pseudo-motion dominates in the phase encoding axis of EPI; that is, a translation. So I've always wondered whether we couldn't use just the three rotations to calculate FD as a better estimate of real head motion instead: practicalfmri.blogspot.com/2024/04/can-... (2/2)

Can we separate real and apparent motion in QC of fMRI data?

A few years ago, Jo Etzel and I got into a brief but useful investigation of the effects of apparent head motion in fMRI data collected wi...

practicalfmri.blogspot.com

bioRxiv Neuroscience@biorxiv-neursci.bsky.social · last wk.

The State of Motion: Demographic and representational consequences of motion-based exclusion in fMRI https://www.biorxiv.org/content/10.64898/2026.07.23.739855v1

Framewise displacement (FD) uses the three translations & three rotations from volume realignment ("motion correction") to estimate total motion amount, and define high/low movers. In this paper, as in earlier work, a notch filter (~0.3 Hz) tries to deal with pseudo-motion from breathing. (1/2)

bioRxiv Neuroscience@biorxiv-neursci.bsky.social · last wk.

The State of Motion: Demographic and representational consequences of motion-based exclusion in fMRI https://www.biorxiv.org/content/10.64898/2026.07.23.739855v1

The State of Motion: Demographic and representational consequences of motion-based exclusion in fMRI https://www.biorxiv.org/content/10.64898/2026.07.23.739855v1

More evidence of motion as stable trait which biases fMRI group studies.

bioRxiv Neuroscience@biorxiv-neursci.bsky.social · last wk.

The State of Motion: Demographic and representational consequences of motion-based exclusion in fMRI https://www.biorxiv.org/content/10.64898/2026.07.23.739855v1

So the UK gubmint replaced its prime minister for the sake of £45 a year in VAT on electricity and a quid off a bus fare already capped at £3? Seriously? These are the big changes?

Limitations of pupil diameter as a proxy for modes of locus coeruleus activity https://www.biorxiv.org/content/10.64898/2026.07.14.738598v1

The 2026 fMRI Summer Course with @fmri-today.bsky.social has begun and the recordings and slides are shared here: fmrif.nimh.nih.gov/SummerCourse

Optimizing MR-based gaze-decoding for eyes-closed eye-tracking in fMRI https://www.biorxiv.org/content/10.64898/2026.07.07.736972v1

NAA as mitochondrial “sweat” makes sense. It’s localized to neurons & dendrites, and the harder they work the more carbon they need to build synapses.

bioRxiv Neuroscience@biorxiv-neursci.bsky.social · last mo.

N-Acetylaspartate Synthesis as a Thermodynamic Relief Mechanism for Mitochondrial Aspartate Aminotransferase https://www.biorxiv.org/content/10.64898/2026.06.29.735215v1

N-Acetylaspartate Synthesis as a Thermodynamic Relief Mechanism for Mitochondrial Aspartate Aminotransferase https://www.biorxiv.org/content/10.64898/2026.06.29.735215v1

Dr. Tianye Zhai’s careful and exhaustive new paper evaluating the effects of numerous fMRI denoising pipeline components, alone and in combination, just came out in HBM - check it out! onlinelibrary.wiley.com/doi/10.1002/...

Benchmarking fMRI Denoising Pipelines

This paper benchmarked fMRI denoising pipelines on task- and resting-state, single- and multi-echo fMRI datasets, in a modern 1-step regression framework, with pre-whitening and time-shifted physiolo...

onlinelibrary.wiley.com

Cell-Type-Specific Bidirectional Modulation of the Cortico-Thalamo-Cortical Sensory Pathway by Transcranial Focused Ultrasound (tFUS) pubmed.ncbi.nlm.nih.gov/42362146/

Cell-Type-Specific Bidirectional Modulation of the Cortico-Thalamo-Cortical Sensory Pathway by Transcranial Focused Ultrasound (tFUS) - PubMed

These findings demonstrate that tFUS exerts bidirectional, parameter-dependent modulation of a sensory pathway and highlight the critical role of CaMKII-positive neurons in mediating these effects. Th...

pubmed.ncbi.nlm.nih.gov

In-scanner thoughts contribute to resting-state functional connectivity pubmed.ncbi.nlm.nih.gov/42365014/ I've long thought that this is the "elephant in the room" of resting state #fMRI esp. for comparing groups. If two groups think & feel differently in the scanner, of course rsfMRI will differ!

Neuroendocrine influences on dynamic cerebrovascular function and implications for functional MRI https://www.biorxiv.org/content/10.64898/2026.06.06.729907v1

Published today in Nature Communications: our work shows that ultrasound and electric fields can interact in tissue to generate low-frequency electrical stimulation at the ultrasound focus. A possible new mechanism for ultrasound neuromodulation. doi.org/10.1038/s414...

Ultralow frequency vaso-oscillations in human cerebral arteries are independent from Mayer waves https://www.biorxiv.org/content/10.64898/2026.06.09.731141v1

Might vasculo-neural coupling be the main mechanism behind tFUS neuromodulation? What does AI have to say? practicalfmri.blogspot.com/2026/06/in-j...

Might vasculo-neural coupling be the main mechanism behind tFUS neuromodulation? What does AI have to say?

In January I speculated on the role of blood vessels  as the possible site(s) of primary activity for transcranial focused ultrasound (tF...

practicalfmri.blogspot.com

Commentary by Chen, Rosen & Polimeni in the same issue: www.nature.com/articles/s41...

BOLD fMRI reflects both vascular and metabolic signals - Nature Neuroscience

A recent study by Epp et al. uses advanced, quantitative functional MRI measures to demonstrate that the ‘canonical’ interpretation of blood-oxygenation-level-dependent (BOLD) functional MRI (fMRI) — ...

nature.com

Tim Behrens@behrenstimb.bsky.social · 3mo ago

This is the May cover of NN but it has already been debunked on biorxiv www.biorxiv.org/content/10.6... Such a clear statement about the ridiculous pace of publishing (not just NN).

This is the May cover of NN but it has already been debunked on biorxiv www.biorxiv.org/content/10.6... Such a clear statement about the ridiculous pace of publishing (not just NN).

Nature Neuroscience@natneuro.nature.com · 3mo ago

Check out our May issue! www.nature.com/neuro/volume...

Multiplexed magnetic resonance imaging (MRx). www.nature.com/articles/s41... 22 measures incl. T1, T2, main metabolites in 14 min. A technical tour de force, but I'm not sure where/how it will find clinical applications.

Multiplexed magnetic resonance imaging - Nature

A new approach to magnetic resonance imaging, ‘multiplexed magnetic resonance imaging’, is reported, which enables high-resolution simultaneous multiparametric mapping of multiple molecules in standar...

nature.com

A Multi-Channel AM-TMAS Driving System Based on Amplitude-Modulated Sine Waves pubmed.ncbi.nlm.nih.gov/42072199/

A Multi-Channel AM-TMAS Driving System Based on Amplitude-Modulated Sine Waves - PubMed

Selectively modulating specific brain-rhythm bands with physical stimuli helps both to reveal neural mechanisms and to provide non-pharmacological treatment avenues for brain disorders. This study pro...

pubmed.ncbi.nlm.nih.gov

BOLD response delays represent local cortical processing pubmed.ncbi.nlm.nih.gov/42015405/

BOLD response delays represent local cortical processing - PubMed

A number of studies showed that stimulus or task conditions can alter the shape of the hemodynamic response (HR). Contrary to variations across brains and brain regions, vascular factors alone cannot ...

pubmed.ncbi.nlm.nih.gov

Opposing BOLD signals and oxygen metabolism largely arise from statistical uncertainty in metabolic estimates https://www.biorxiv.org/content/10.64898/2026.04.21.719913v1

OMG 😱 just created a new GitHub repo with CoPilot prompt explaining the project and analyses - it created folders etc .. and wrote half of the code already - some is likely BS but still .. just wow

Neural Control of Autonomic Arousal During Threat Anticipation Revealed by High-Resolution Cardiac Contractility https://www.biorxiv.org/content/10.64898/2026.02.23.707545v1

How does blood flow relate to brain activity? We discovered that it reflects two neural populations affected oppositely by arousal. Together, they explain neurovascular coupling in all brain regions and brain states! Out today in Nature: rdcu.be/fdC2A @uclbrainscience.bsky.social

📣 Job alert: We are recruiting a Prof in Neuroscience with MRI expertise to join us at @unirdg-cinn.bsky.social and @unirdg-psych.bsky.social. See tinyurl.com/2kdjph8v for details. Contact me for info/chat. Please spread the word #neuroskyence #neurojobs

Professor of Neuroscience at University of Reading

Apply for the Professor of Neuroscience role on jobs.ac.uk, the top job board for academic positions in higher education. View details and apply now.

tinyurl.com

tedana, multi-echo fMRI denoising software, newsletter includes tedana v26.0.3 updates and details of multi-echo fMRI ed course at OHBM 2026. groups.google.com/g/tedana-new...

Tau-induced mitochondrial reverse electron transport drives neurodegeneration https://www.biorxiv.org/content/10.64898/2026.04.04.716514v1

WTI crude. Going up like Artemis II since April Fool’s Day.