#fmri — Public Fediverse posts

#NeuralSet turns raw #NeuralRecordings and stimuli into #PyTorch-ready datasets. Supports
🧠 #fMRI, #EEG, #MEG, #iEEG, #spikes… and preprocesses 💬 text 🔊 audio ▶️ video 🏞️ image… #embeddings:

📚 https://facebookresearch.github.io/neuroai/neuralset/index.html
📝 https://kingjr.github.io/files/neuralset.pdf

#NeuroAI #CompNeuro #Neuroscience #electrophysiology

#NeuralSet turns raw #NeuralRecordings and stimuli into #PyTorch-ready datasets. Supports
🧠 #fMRI, #EEG, #MEG, #iEEG, #spikes… and preprocesses 💬 text 🔊 audio ▶️ video 🏞️ image… #embeddings:

📚 https://facebookresearch.github.io/neuroai/neuralset/index.html
📝 https://kingjr.github.io/files/neuralset.pdf

#NeuroAI #CompNeuro #Neuroscience #electrophysiology

#NeuralSet turns raw #NeuralRecordings and stimuli into #PyTorch-ready datasets. Supports
🧠 #fMRI, #EEG, #MEG, #iEEG, #spikes… and preprocesses 💬 text 🔊 audio ▶️ video 🏞️ image… #embeddings:

📚 https://facebookresearch.github.io/neuroai/neuralset/index.html
📝 https://kingjr.github.io/files/neuralset.pdf

#NeuroAI #CompNeuro #Neuroscience #electrophysiology

#NeuralSet turns raw #NeuralRecordings and stimuli into #PyTorch-ready datasets. Supports
🧠 #fMRI, #EEG, #MEG, #iEEG, #spikes… and preprocesses 💬 text 🔊 audio ▶️ video 🏞️ image… #embeddings:

📚 https://facebookresearch.github.io/neuroai/neuralset/index.html
📝 https://kingjr.github.io/files/neuralset.pdf

#NeuroAI #CompNeuro #Neuroscience #electrophysiology

Sleep cleans the brain. Now, researchers have developed a fast, non-invasive way to measure the process

https://piefed.social/c/science/p/1963534/sleep-cleans-the-brain-now-researchers-have-developed-a-fast-non-invasive-way-to-measur

Sleep cleans the brain. Now, researchers have developed a fast, non-invasive way to measure the process

https://piefed.social/c/science/p/1963529/sleep-cleans-the-brain-now-researchers-have-developed-a-fast-non-invasive-way-to-measur

https://www.europesays.com/ie/417528/ Noninvasive Stimulation “Talks” to the Brain’s Memory Center #Alzheimer's #BrainConnectivity #Éire #fMRI #Health #Hippocampus #IE #Ireland #neuromodulation #Neuroscience #neurotech #NoninvasiveBrainStimulation #PTSD #tms #UniversityOfIowa

@elduvelle_neuro

To me, fMRI is the equivalent of measuring economic activity across the world by looking at GDP amounts and growth, and trade balances across countries, regions, or continents. Nobody can claim this or that person or city was specifically responsible for the changes, and that's part of what's built into these coarse yet presumably useful economic indicators: the particulars don't matter. (To the point that many measures are averaged that shouldn't be, hiding massive inequalities in opportunity, outcomes, family budgets, education, and more.)

When an fMRI paper claims to look at neural activity patterns, benevolently I presume the authors are speaking at the analogue level of precision of GDP, economic growth, and trade balances. Perhaps here it is useful to distinguish between "neural" and "neuronal".

Any conclusions on mechanisms responsible for the observed activity patterns must be ignored for there isn't any basis whatsoever on the data. Thankfully these are written in the discussion section of the papers: the opinions of the authors about their own results. Since only the methods and results can be read from these papers, often there isn't much or anything to learn from them: all the claims are in the form of (over)interpretations listed in the discussion section.

#neuroscience #fMRI

I know I keep asking this but how can #Neuroscientists say that #fMRI lets you look at "neural activity patterns"?

The same BOLD signal, in a specific voxel, could be generated from an infinite combination of excitatory and inhibitory neurons being more or less active (and that's not even talking about glial cells). How could similar BOLD signals mean that the underlying neural activity patterns were similar?

I must be missing something, please explain 🙏

#Neuroscience

We don't think in words (or numbers). 🧐

https://philosophics.blog/2026/01/19/thinking-without-words-and-other-heresies/?utm_source=masto&utm_medium=social

🎧 https://open.spotify.com/episode/1Zrt6gbJU8od7Sr00MYaTx?si=9k-th4RZRiW_XNi5Tla8MA

#Language #philosophy #cognitivescience #fmri #science #research #words #cognition #chess #fedorenko #blog #podcast #soduko #blog #podcast #perception #apologies

We don't think in words (or numbers). 🧐

https://philosophics.blog/2026/01/19/thinking-without-words-and-other-heresies/?utm_source=masto&utm_medium=social

🎧 https://open.spotify.com/episode/1Zrt6gbJU8od7Sr00MYaTx?si=9k-th4RZRiW_XNi5Tla8MA

#Language #philosophy #cognitivescience #fmri #science #research #words #cognition #chess #fedorenko #blog #podcast #soduko #blog #podcast #perception #apologies

We don't think in words (or numbers). 🧐

https://philosophics.blog/2026/01/19/thinking-without-words-and-other-heresies/?utm_source=masto&utm_medium=social

🎧 https://open.spotify.com/episode/1Zrt6gbJU8od7Sr00MYaTx?si=9k-th4RZRiW_XNi5Tla8MA

#Language #philosophy #cognitivescience #fmri #science #research #words #cognition #chess #fedorenko #blog #podcast #soduko #blog #podcast #perception #apologies

We don't think in words (or numbers). 🧐

https://philosophics.blog/2026/01/19/thinking-without-words-and-other-heresies/?utm_source=masto&utm_medium=social

🎧 https://open.spotify.com/episode/1Zrt6gbJU8od7Sr00MYaTx?si=9k-th4RZRiW_XNi5Tla8MA

#Language #philosophy #cognitivescience #fmri #science #research #words #cognition #chess #fedorenko #blog #podcast #soduko #blog #podcast #perception #apologies

We don't think in words (or numbers). 🧐

https://philosophics.blog/2026/01/19/thinking-without-words-and-other-heresies/?utm_source=masto&utm_medium=social

🎧 https://open.spotify.com/episode/1Zrt6gbJU8od7Sr00MYaTx?si=9k-th4RZRiW_XNi5Tla8MA

#Language #philosophy #cognitivescience #fmri #science #research #words #cognition #chess #fedorenko #blog #podcast #soduko #blog #podcast #perception #apologies

(2018) Where are the #fMRI correlates of #phosphene perception? https://www.frontiersin.org/journals/neuroscience/articles/10.3389/fnins.2018.00883/full "Threshold phosphenes are weak percepts, and their detection subjective and difficult."

40 percent of MRI signals do not correspond to actual brain activity

"For almost three decades, functional magnetic resonance imaging (fMRI) has been one of the main tools in brain research. Yet a new study published in the renowned journal Nature Neuroscience fundamentally challenges the way #fMRI data have so far been interpreted with regard to neuronal activity. According to the findings, there is no generally valid coupling between the oxygen content measured by MRI and neuronal activity."

https://www.tum.de/en/news-and-events/all-news/press-releases/details/40-percent-of-mri-signals-do-not-correspond-to-actual-brain-activity

Samira Epp and Valentin Riedl show that #fMRI blood-flow signals are not a reliable indicator of #BrainEnergy use. Around 40% can oppose neuronal activity, challenging standard interpretations: http://go.tum.de/211216

#Neuroscience
@FAU

📷G.Castrillon

🧠 New paper by Huang et al.: By using #pharmacological #fMRI and dynamic #connectome-based #PredictiveModeling, they show how #cortisol reshapes whole-brain #NetworkDynamics during emotional memory encoding. Trial-level analyses reveal distinct but increasingly integrated #arousal and #memory networks under #stress, supporting a hormonally driven "memory formation mode".

🌍 https://doi.org/10.1126/sciadv.adz4143

#Neuroscience #CognitiveNeuroscience #BrainNetworks #CogSci

🧠 🗝️ #fMRI #BrainDecoding: Was neuronale Signale wirklich zeigen

Wir behandeln #fMRI-Bilder oft so, als wären sie Momentaufnahmen aus dem privaten Inneren des Gehirns. Aber wie #DanielDennett in unserem #Zoomposium erklärt, sind diese farbenfrohen Aktivierungskarten keine wörtlichen Bilder – sie sind metaphorische Rekonstruktionen.

📽 https://youtu.be/M2qiVz95ZYk

📎https://philosophies.de/index.php/2023/12/25/naturalistic-view/

#Consciousness #PhilosophyOfMind #Neuroscience #MultipleDraftsModel #RealPatterns #CognitiveScience #AI

🧠 🗝️ #fMRI #BrainDecoding: What Neural Signals Really Show

We often treat #fMRIimages as if they were snapshots of the brain’s private inner theater. But as #DanielDennett explains in our #Zoomposium, these colorful activation maps are not literal images—they are metaphorical reconstructions.

📽 https://youtu.be/M2qiVz95ZYk

📎https://philosophies.de/index.php/2023/12/25/naturalistic-view/

#neurologyimaging #Consciousness #PhilosophyOfMind #Neuroscience #MultipleDraftsModel #RealPatterns #CognitiveScience #AI

@adapalmer
Hmm... I really doubt they found the neural pattern behind aha-moments with #fMRI.. which not only shows blood flow oxygenation, not neural activity, but has a very low temporal resolution compared to the very fast timescale of these events. Plus these are likely to engage a very small and very distributed pattern of neurons throughout the brain.

Maybe they've found blood oxygenation changes following the emotional response linked to the aha-moments though? 🤔

A paper in #Science about "In vivo direct imaging of neuronal activity at high temporospatial resolution" - describing "a method that allows for direct imaging of neuronal activity by #fMRI"

• has been retracted!

The retraction: https://www.science.org/doi/10.1126/science.aec1773
The paper: https://www.science.org/doi/10.1126/science.abh4340

"In response to the concerns, we reanalyzed the data. Unfortunately, the additional results revealed unexpected MR signal characteristics and did not robustly support the original conclusions."

#Neuroscience #RetractionWatch

Download it immediately! #free #freeapp #appstore #playstore #resource #family #parenting #generationaltrauma #fmri #science #psychology #development #developmentalpsychology

http://invisiblymisdiagnosed.com/2025/09/29/toxicity-toolkit-points-to-ponder-29-more-happy-child/?utm_source=mastodon&utm_medium=jetpack_social

New brain study reveals the psychology behind video advertisement liking: Researchers analyzed brain signals during video ad exposure using fMRI data from 113 participants, discovering that emotion and social cognition predict ad preferences. https://ppc.land/new-brain-study-reveals-the-psychology-behind-video-advertisement-liking/ #VideoAdvertising #Neuroscience #Psychology #MarketingResearch #fMRI

[en] How risk-averse are you?

"Researchers found people who are socially rich, with strong social support but whose family had less money, and those who are #economically rich, having more money but less #social support, take similar levels of #risk but activate different parts of their brains."

"The participants took part in a computerized risk-taking game while undergoing #fMRI #brain scans. In the game, they pumped virtual balloons to earn money, 5 cents per pump. At any point, they could choose to cash out. ..."

https://news.cornell.edu/stories/2025/08/study-way-you-grew-may-shape-how-your-brain-handles-risk

#riskaverse #humanecology #cornell #research #study

German is expanding! Thanks to Dr. Christoph Metzner, you can now read about fMRI neurofeedback in German as well:
https://neurofrontiers.blog/de/fmrt-neurofeedback-was-soll-die-aufregung/

As usual, don’t forget to share with your friends!

And if you’d like to join the project, details are here: https://neurofrontiers.blog/the-brain-across-languages/

#deutsch #neuroscience #SciComm #fmri #neurofeedback

From: @neurofrontiers
https://neuromatch.social/@neurofrontiers/114692251552774595

📚 New preprint by Song et al.: Geometry of #NeuralDynamics along the #cortical #attractor landscape reflects changes in attention. They show that while attractor positions are determined by cortical organization, the geometry of neural dynamics on the landscape changes systematically with attentional states and contexts.

🌍 https://www.biorxiv.org/content/10.1101/2025.08.08.669432v1

#Neuroscience #Attention #fMRI #CompNeuro

Reconstructing sounds from #fMRI data is limited by its temporal resolution. @ykamit &co develop a DNN-based method that aids reconstruction of perceptually accurate sound from fMRI data, offering insights into internal #auditory representations @PLOSBiology https://plos.io/4fhNw1Z

And this one on humans:

"Multimodal single-neuron, intracranial EEG, and fMRI brain responses during movie watching in human patients", Keles et al. 2024 (Ueli Rutishauser's lab)
https://www.nature.com/articles/s41597-024-03029-1

#neuroscience #fMRI

See also this study in mouse, comparing the fMRI's BOLD signal with Ca2+ imaging with GCaMP:

"Multimodal measures of spontaneous brain activity reveal both common and divergent patterns of cortical functional organization"
Vafaii et al. 2024 (Luiz Pessoa lab)
https://www.nature.com/articles/s41467-023-44363-z

#neuroscience #fMRI

For voxel resolutions used, "typically 2–3 mm in each dimension", and the time constants at play, "peaking around 4 to 5 seconds after local neural activity and returning to baseline after 12 to 15 seconds", any claims towards a neural circuit basis of the phenomena observed is, at best, wishful thinking.

Bear in mind neurons communicate in time scales of single-digit milliseconds, and their arbours span from micrometres to centimetres. The typical fMRI sampling as described above falls very short on both the spatial and the temporal dimensions.

#neuroscience #fMRI

Annual reminder of what is the BOLD signal used in fMRI studies of the human brain:

"The standard pulse sequence for measuring brain function is the echo planar imaging (EPI) sequence. EPI has two desirable properties for fMRI: It is extremely fast, allowing an entire slice to be acquired from one RF pulse in less than 100 ms, and it is sensitive to T2*, which, as we will see later, is how MRI measures neural activity. [...] To link this to magnetic resonance, remember that T2* decay reflects dephasing of protons caused by field inhomogeneities. Blood has different magnetic properties depending on oxygenation: Deoxygenated blood interacts with the magnetic field because the iron in hemoglobin is unbound, whereas oxygenated blood in which the iron is bound to oxygen does not. Deoxygenated blood thus causes faster T2* decay and reduces signal relative to oxygenated blood. This difference in signal is referred to as the blood oxygenation level–dependent (BOLD) contrast. [...] increased signal in a voxel measured with an EPI sequence indicates recent neuronal activity because of the relative increase in local blood oxygenation that accompanies such activity. The temporal profile of this BOLD response, known as the hemodynamic response function, looks like a bell curve with a long tail, peaking around 4 to 5 seconds after local neural activity and returning to baseline after 12 to 15 seconds."

From: "Principles of Neural Science", 6th edition. Kandel et al. 2021.

#neuroscience #BOLDsignal #FMRI

Spearheaded by the unstoppable Leili Mortazavi with Elnaz Ghasemi and Charlene C. Wu , this culminates > 15 years of work!
The findings imply that some #FMRI findings are more robust than commonly thought (with respect to reliability, validity, and generalizability).
Special thanks to the editors and reviewers at PNAS Nexus and for support from Stanford University 's #Neurochoice Initiative and the #ToyotaResearchInstitute ! (#AffectiveNeuroscience , #Neuroeconomics )

@JosetAEtzel
Hoo boy (could check with #MID data?)… #multiband #FMRI

#OHBM coming up next week; anyone else planning to be there?

I'll have a poster (1046) about #fMRI "crescent" artifacts; it's uploaded to the OHBM site and https://osf.io/pzj39.

I posted a bit of poster commentary at https://mvpa.blogspot.com/2025/06/ohbm-2025-lets-chat-about-crescents.html, excerpted here. I still don't know exactly how much the artifact affects fMRI signal quality, but am confident that there is enough likelihood of a substantial negative impact that they shouldn't be ignored.

It seems to be a given in the MR physics literature that Nyquist ghosts appreciably degrade EPI. Quantifying the impact in GLM results is difficult, however, especially after preprocessing, smoothing, in group analyses , and when runs of different encoding directions are analyzed together. Qualitatively, I can see crescents in single-subject statistical images, but that's of course not a typical analysis.

Even so, I think there's enough evidence to recommend that crescent artifacts be one of the criteria for choosing acquisition protocols: select parameters so that crescent artifacts are minimized and/or appear in brain areas of low theoretical interest. Since the crescent artifact likely reduces BOLD signal quality somewhat, and is more often prominent in people with smaller brains, there's a risk of bias if an experimentally-important participant characteristic (e.g., age, sex) is associated with differences in head size; extra care should be taken in these cases.

🧠 Could quantum entanglement explain heightened states of consciousness?

🔗 Evidence of quantum-entangled higher states of consciousness. Computational and Structural Biotechnology Journal, DOI: https://doi.org/10.1016/j.csbj.2025.03.001

📚 CSBJ Quantum Biology & Biophotonics: https://www.csbj.org/qbio

#QuantumConsciousness #Neuroscience #MeditationResearch #Neurophysics #neuroplasticity #MindScience #fMRI #EEG #electroencephalography #consciousness #brain #cognition

#Zoomposium with Professor Dr. John-Dylan #Haynes: “In search of the #code of the #brain”

In order to carry out #Brain #reading large amounts of #data are collected from the #fMRI #scans of the test subjects. The main areas examined are visual #perception, visual #imagination, short-term #memories, subliminal #stimuli, romantic #feelings, #impulse control and unconscious #inclinations.

More at: https://philosophies.de/index.php/2023/08/15/die-suche-nach-dem-code-des-gehirns/

or: https://youtu.be/qMPfefKEe4A

fMRI neurofeedback shows promise for depression treatment https://www.psypost.org/fmri-neurofeedback-shows-promise-for-depression-treatment/?utm_source=dlvr.it&utm_medium=mastodon #fMRI #Neurofeedback #DepressionTreatment #MentalHealth #BrainConnectivity

Engaging backstory on the evolution of meta-analyses and large scale collaborations ( i.e., #ABCD ) by Angela Laird as interviewed by Peter Bandettini on the #neurosalience podcast ( #FMRI , #neuroscience , #ohbm ):

https://www.youtube.com/watch?v=d7Jh7JFGf1Q

Engaging backstory on the evolution of meta-analyses and large scale collaborations ( i.e., #ABCD ) by Angela Laird as interviewed by Peter Bandettini on the #neurosalience podcast ( #FMRI , #neuroscience , #ohbm ):

https://www.youtube.com/watch?v=d7Jh7JFGf1Q

Engaging backstory on the evolution of meta-analyses and large scale collaborations ( i.e., #ABCD ) by Angela Laird as interviewed by Peter Bandettini on the #neurosalience podcast ( #FMRI , #neuroscience , #ohbm ):

https://www.youtube.com/watch?v=d7Jh7JFGf1Q

Engaging backstory on the evolution of meta-analyses and large scale collaborations ( i.e., #ABCD ) by Angela Laird as interviewed by Peter Bandettini on the #neurosalience podcast ( #FMRI , #neuroscience , #ohbm ):

https://www.youtube.com/watch?v=d7Jh7JFGf1Q

Engaging backstory on the evolution of meta-analyses and large scale collaborations ( i.e., #ABCD ) by Angela Laird as interviewed by Peter Bandettini on the #neurosalience podcast ( #FMRI , #neuroscience , #ohbm ):

https://www.youtube.com/watch?v=d7Jh7JFGf1Q

A very interesting study finding 6 distinct #fMRI-discernible biotypes of #depression.

https://rdcu.be/dQzpg

#MDD #Anxiety #Psychiatry #Neurology

Psilocybin desynchronizes the human brain

https://www.nature.com/articles/s41586-024-07624-5

#Psilocybin #Neuroplasticity #BrainConnectivity #Psychedelics #Serotonin #MentalHealth #Therapeutics #fMRI #Neuroscience #FunctionalMapping #Hippocampus #ClinicalTrials #Depression #Addiction #Anxiety #Synaptogenesis #Glutamate #BrainResearch #Cortex #Subcortex #EgoDissolution #SpaceTimePerception #Neurobiology #TherapeuticMechanisms #BrainNetworks #PrecisionMapping #BrainChanges #PsychedelicResearch #BrainFunction

New publication in Cerebral Cortex! Using #DDM and #fMRI 🧠 we show that #empathy induces a stable prosocial decision bias. Congrats to @SaulinAnne!
https://doi.org/10.1093/cercor/bhae272

Two-year postdoc position at #NeuroSpin on visual plasticity of blind individuals https://jobrxiv.org/job/unicog-27778-two-year-postdoc-position-at-neurospin-on-visual-plasticity-of-blind-indivi/ "study the #visual #plasticity and potential #cortical #reorganization of #blind individuals"; 3T, 7T #fMRI, 11.7T #MRI

Low family income linked to altered patterns of brain connectivity in children
https://www.msn.com/en-gb/health/other/low-family-income-linked-to-altered-patterns-of-brain-connectivity-in-children/ar-BB1kn7wC?cvid=96ace574ca754656fd2efd51e6b6d25a&ocid=winp2fptaskbarhover&ei=8

#LowIncome
#SocioeconomicStatus
#Brain
#BrainConnectivity
#Poverty
#AdolescentBrainCognitiveDevelopmentStudy
#fMRI
#FunctionalMagneticResonance
#DefaultModeNetwork
#DMN

#BoardingSchoolLife
I was having a good #weekend, until an hour ago. I trip in the #laundry room and scrapped my left knee, pull my left shoulder and hit my head. So now Ms. Heer has driven me to the #hospital, and I'm waiting to get #FMRI and see if I've added to my #concussion count 😥.
My head hurts really bad and I'm having trouble focusing. So I'm going to go, see you soon. Hope you all are having a better weekend.🩷