Daniele Marinazzo
@danielemarinazzo.bsky.social
1.8K followers 2.2K following 220 posts
Computational neuroscientist and complexity scientist. Professor at Ghent University.
Posts Media Videos Starter Packs
danielemarinazzo.bsky.social
You could have rather put the quotation marks in "arousal", given the last sentence of the paper.
Nice and impressive, but it's basically saying that there is a low-dimensional descriptor. Now, it could have been reversed having latent brain dynamics as a predictor, and pupillometry as the target
danielemarinazzo.bsky.social
There are so many assumptions we make, and so many mechanisms that could originate the same spectral features (both "periodic" and "aperiodic"), that pretending to "separate" them (are they separable?) is super difficult if not ill-posed.
danielemarinazzo.bsky.social
thanks!. I appreciate your effort, and I have been thinking a lot about this "separation" too. But outside the framework of a (biased imo) generative model of "pure oscillations" plus 1/f, how can this be applied to real data?
Reposted by Daniele Marinazzo
corticalpete.bsky.social
A birthday is a good time to reflect! To mark SPM @ 30, this month's issue of Cerebral Cortex features deeply insightful commentaries on neuroimaging analysis from Ed Bullmore, Peter Bandettini, Peter Fox, Pedro Valdes-Sosa, Klaas Enno Stephan, Viktor Jirsa, et al [1/2] academic.oup.com/cercor/issue
Issues | Cerebral Cortex | Oxford Academic
Publishes papers on the development, organization, plasticity, and function of the cerebral cortex, including the hippocampus.
academic.oup.com
danielemarinazzo.bsky.social
ha! you wouldn't tell..
I always use this slide
a slide mentioning that colliders and confounders (and limits in pairwise and partial correlations) are well known in psychometrics and epidemiology, but much less so in neuro
danielemarinazzo.bsky.social
Congratulations, you'll do great things
danielemarinazzo.bsky.social
It's a self answering question, those are defined by the association, so if they do stuff together, call them the same. Or do as some smart asses who talk about "coactivation"
Reposted by Daniele Marinazzo
grimalkina.bsky.social
I'm specifically sharing this paper because I saw a post recently that said people who think about methodology are "attacking authors"
jeffgreene.bsky.social
Do students learn to think like researchers? 🧪 Our study found psych majors judged study quality & designed research using sound criteria. High achievers also reflected on why methods matter. More evidence for teaching epistemic reflection.
#PsychSciSky #AcademicSky #EduSky
College Undergraduates’ Use of Epistemic Criteria and Strategies While Designing Psychology Research Studies
Barzilai and Chinn (2018) have advocated for framing education more overtly around epistemic matters to help students learn how to create worthwhile epistemic aims, which they achieve by using appr...
doi.org
danielemarinazzo.bsky.social
"Brief segments of neurophysiological activity enable individual differentiation", but also when the neurophysiological activity (MEG data) is identical for all the subjects, we have the same differentiation.

Because of the head shape, of course.

pubpeer.com/publications...
PubPeer - Brief segments of neurophysiological activity enable individ...
There are comments on PubPeer for publication: Brief segments of neurophysiological activity enable individual differentiation (2021)
pubpeer.com
Reposted by Daniele Marinazzo
brovelli.bsky.social
Finally out on Nat Comms 🚀
We show that an intrinsic motivational learning signal (information gain) is encoded through synergistic and higher-order functional brain interactions and is broadcast to prefrontal reward circuits.
https://www.nature.com/articles/s41467-025-62507-1
t.co
danielemarinazzo.bsky.social
Localizing Synergies of Hidden Factors in Complex Systems: Resting Brain Networks and HeLa Gene Expression Profile as Case Studies

www.mdpi.com/1099-4300/27...
danielemarinazzo.bsky.social
Each CAP has dimensions of vertices × 1 and represents a pattern of activity. To transform activations into their corresponding functional connectivity contribution, we used “edge time series.”

So is the C in CAP useless? Why are they called co-activation, and not just "activity" then?
danielemarinazzo.bsky.social
You mean apart from the cardio and respiratory ones? In the same way that bands are somewhat arbitrary, so is the limit between oscillations and broadband. Also, any oscillations with varying amplitude results in 1/f
Reposted by Daniele Marinazzo
neuromechanist.bsky.social
🧠 𝗦𝘁𝗼𝗽 𝘂𝘀𝗶𝗻𝗴 𝗿𝗮𝘄 𝗘𝗘𝗚 𝗰𝗵𝗮𝗻𝗻𝗲𝗹𝘀 - 𝗵𝗲𝗿𝗲'𝘀 𝘄𝗵𝘆⁣

New research with 1,024 brain electrodes proves EEG channels DON'T reflect local brain activity underneath the electrode.⁣

paper: ⁣https://www.biorxiv.org/content/10.1101/2025.06.24.660870v1

#Neuroscience #EEG #BrainResearch
Reposted by Daniele Marinazzo
pascualmarqui.bsky.social
Preprint: Equations/generalizations for TC, DTC, RSI, O-information, and TSE-complexity for multivar real/cmplx data. How “connections” contribute to system inf measures.
Helpful comments and reports on errors are appreciated.
arXiv: 2025-07-11
doi.org/10.48550/arXiv.2507.08773
danielemarinazzo.bsky.social
It also looks like the Belousov–Zhabotinsky soup en.wikipedia.org/wiki/Belouso..., studied with the Winfree model, pubs.acs.org/doi/10.1021/..., of which the Kuramoto model is a sort of simplified version. @stevenstrogatz.com
Reposted by Daniele Marinazzo
tiago.skewed.de
There are some corners of the network science literature which adamantly claim that connected components *must* belong to different communities. Yet, ER networks can easily be disconnected, and the same is true for individual groups in SBM networks. There, splitting the components overfits. 1/4