❤️🔥 Exciting new preprint ❤️🔥 #Pupil constriction causes, by itself and independently of visual stimulation, activity in the human #retina and #visual system. w/ @anavili.bsky.social @veerahelmisofia.bsky.social @hakankarsilar.bsky.social @olaf.dimigen.de 1/4 🧵
www.biorxiv.org/content/10.6...
Posts by dennis hernaus
Congrats Debbie!! 🎉
Delighted to share our discoveries about one of the brain's neurotransmitter systems:
www.biorxiv.org/content/10.6...
Together with colleagues at the @alleninstitute.org, we have learned a lot about a tiny cluster of neurons in the brainstem locus coeruleus (LC) that releases norepinephrine (NE). 1
Correlating brain maps across datasets is everywhere in neuroimaging. Here we ask: when you contextualize a brain map against genes, metabolism, or connectivity... What can you really conclude? How can we do better? We explore these questions here: tinyurl.com/2dudkevc
Simulator of the following (attentional) models:
🔎 Rescorla-Wagner
🔎 Pearce-Kaye-Hall
🔎 Mackintosh Extended
🔎 Le Pelley’s Hybrid
🔎 Rescorla-Wagner with a unified variable learning rate (integrating Mackintosh’s and Pearce and Hall’s quasi-opposing conceptualisations).
github.com/cal-r/PALMS-...
#BIDS has been extended to #EyeTracking data!
There is now a standard for organizing and sharing eye tracking, covering gaze position, pupil size, meta data, messages, and more. Great news for #OpenScience! 🎉
Martin Szinte et al: www.biorxiv.org/content/10.6...
Happy to share our new work:
A simple measure of motor control and fitness is very informative...
Transdiagnostic Patterns of Grip Strength in Schizophrenia, Current Depression, and Remitted Depression url: jamanetwork.com/journals/jam...
What's the relationship of apathy to depression and anhedonia? Sijia Zhao led our work on this to show that many individuals qualify for the diagnostic criteria of 2 or even 3 of these syndromes. But factor analysis reveals that the syndromes are highly dissociable
jnnp.bmj.com/content/earl...
Some thoughts on @franziskaknolle.bsky.social recent paper on speech expectations, hallucinations, and glutamate: illness and chronicity may be important in understanding the role of glutamate in prior weighting www.biologicalpsychiatryjournal.com/article/S000...
In the process, we made use of @thenewstats.bsky.social's helpful re-analysis of the original paper, and @lakens.bsky.social's primer papers on equivalence testing 🤌
All our analyses were pre-registered (first study was an RR) and the code and data can be found via the papers. A massive achievement of Charlotte Kroll who lead the study like a pro. 💪
Having said this, our recently-published companion paper (👇), which looked at DNA methylation 🧬 of the OXT *synthesis* gene (in n~200 on average), does suggest a modest role for OXT in trust in this condition.
#neuroscience #Neuroskyence #cogpsyc #AffectSci #psychscisky
Overall, we find that the effect of intra-👃 OXT on trust within a minimal social contact condition is too small to be of interest for typical lab-based human OXT studies.
A small step toward clarifying the boundary conditions of a widely discussed finding.
Two new papers out! 🎉
We revisited the idea that oxytocin promotes prosocial behaviour by collecting new data (n=211) and pooling it with data from another recent large-scale replication attempt (n=321).
Thank you for sharing. This was a fun but challenging project to replicate some of the key findings in this literature (all to first author Charlotte Kroll's credit!). Your re-analysis turned to be extremely helpful for an informed power calculation!
More evidence that intranasal oxytocin does not reliably impact trust: www.sciencedirect.com/science/arti...
Cool work from @wviechtb.bsky.social, @leonieseidel.bsky.social, @dhernaus.bsky.social and others.
#neuroskyence #stats.
#JNeurosci: Carvalheiro et al performed 3 studies exploring the relationship between punishments & money-related reward learning in a gambling task, finding punishments may promote reward learning by targeting activity in a reward-related brain area https://doi.org/10.1523/JNEUROSCI.1631-25.2026
Looks interesting Pete, looking forward to reading!
Thrilled that this first empirical paper out of the lab is posted, led by Sandarsh Pandey, asking:
Depression (and other internalizing disorders) involve profound changes to sense of self. How can we study these differences using rigorous decision-making methods?
(alt link: tinyurl.com/2kk59dje)
New neuromapr #rstats package is available from GitHub! Highly experimental, early adopters and bug identifiers are super welcome to report issues!
github.com/lcbc-uio/neu...
#neuroscience #rstats #neuroimaging
𝗳𝗠𝗥𝗜 (𝗕𝗢𝗟𝗗) 𝘁𝗿𝗼𝘂𝗯𝗹𝗲𝘀 𝗮𝗴𝗮𝗶𝗻?
Something that everyone using fMRI will be hoping is not very solid, please please...
Please BOLD don't go down if oxygen metabolism (neurons?) goes up...
And it had to affect "default" regions???
doi.org/10.1038/s415...
#neuroskyence
This is an important study but psilocybin potentially promoting brain tumor growth is consistent with human studies suggesting SSRIs may worsen survival outcomes in glioma
New ENIGMA-CHR study examining network topology differences in 1282 controls and 1582 individuals with clinical high risk for psychosis, led by Drs Siwei Liu, Helen Juan Zhou, Jimmy Lee with @dhernaus.bsky.social, Maria Jalbrzikowski and colleagues. Link to article: www.nature.com/articles/s41...
A new take on the limitations of "psychometric networks" now out in Nature Human Behavior. You don't want to put too much confidence in individual edges. Something we cautioned against in 2017.
1/2
www.nature.com/articles/s41...
Published now (after long last & 10 citations). Although tVNS does not alter food reward ratings in healthy people, it acutely improved liking ratings in patients with MDD (also correlated with anhedonia). #neuroskyence 🩺
Work w/ @akuehnel.bsky.social
www.sciencedirect.com/science/arti...
With over 7000 participants @ecnp.eu annual meeting in Amsterdam is kicked off by President @martienkas.bsky.social - Congrats to program chair Barbara Franke on an excellent program starting with an impactful keynote from Eveline Crone on the mysterious adolescent brain. #ecnp2025
This one looks intriguing. Arousal "embedding" whole-brain dynamics. 🤯
#neuroskyence #compneurosky
doi.org/10.1038/s415...
'Memento', but it's every plot you make in R