Simon van Gaal
@svangaal.bsky.social
140 followers 75 following 3 posts
Associate Prof at University of Amsterdam. Cognitive psychology/neuroscience. Consciousness, decision making, arousal states. PI in the consciousbrainlab.com
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svangaal.bsky.social
Out for a while but forgot to post it. Using pupil size as a proxy for arousal, we show that the inverted-U shaped arousal–performance curve (Yerkes-Dodson law) is not fixed, but can shift globally depending on neuromodulatory state (atomoxetine): arousal recalibration www.pnas.org/doi/10.1073/...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
Reposted by Simon van Gaal
neurosteven.bsky.social
🧠 New preprint: Why do deep neural networks predict brain responses so well?
We find a striking dissociation: it’s not shared object recognition. Alignment is driven by sensitivity to texture-like local statistics.
📊 Study: n=57, 624k trials, 5 models doi.org/10.1101/2025...
Reposted by Simon van Gaal
canalesjohnson.bsky.social
The great @stijnnuiten.bsky.social on the mechanisms of optimal arousal state. #ASSC28 @assc28.bsky.social
Reposted by Simon van Gaal
donnerlab.bsky.social
1/ New paper by Hame Park, (@AraziAyelet), Bharath Talluri, Marco Celotto, Stefano Panzeri, Alan Stocker & Tobias Donner published in Nature Communications – “Confirmation Bias through Selective Readout of Information Encoded in Human Parietal Cortex”: rdcu.be/etlR7. Here is a summary:
Confirmation bias through selective readout of information encoded in human parietal cortex
Nature Communications - People often discard incoming information when it contradicts their pre-existing beliefs about the world. Here, the authors show that this discarded information is precisely...
rdcu.be
Reposted by Simon van Gaal
n41c0.bsky.social
Very happy this is finally out 🎉. In this paper, we show that conf. reports are biased by a visual illusion, an asymmetrical base rate and a payoff scheme. Crucially, we show that only the visual illusion affects subj. experience, suggesting decision bias leaks onto confidence reports.
svangaal.bsky.social
Similar feedback-related neural decoding measures were also informative of having false percepts (e.g., seeing a house when a face was presented). Early decoding: presented stimulus properties; late decoding: neural representation flips and reflects false percept.
journals.plos.org/plosbiology/...
Illusory object recognition is either perceptual or cognitive in origin depending on decision confidence
The occurrence of perceptual illusions, the misinterpretation of sensory input, is a common characteristic of several neurological and psychiatric disorders. This study shows that such illusions have ...
journals.plos.org
Reposted by Simon van Gaal
clarepress.bsky.social
Out now @cp-trendscognsci.bsky.social, w/ @akalt.bsky.social & @drmattdavis.bsky.social.

Are sensory sampling rhythms fixed by intrinsically-determined processes, or do they couple to external structure? Here we highlight the incompatibility between these accounts and propose a resolution [1/6]
Reposted by Simon van Gaal
ademertzi.bsky.social
🥳 The 2024 Impact Factor & CiteScores are now released. We're pleased to inform you that Neuroscience of Consciousness #NCONSC achieved an Impact Factor of  4.3 (2023 IF 4.1). We are very excited and thankful for our prolific community of consciousness science! #consci @thomasandrillon.bsky.social
Reposted by Simon van Gaal
anilseth.bsky.social
1/ Can AI be conscious? My Behavioral & Brain Sciences target article on ‘Conscious AI and Biological Naturalism’ is now open for commentary proposals. Deadline is June 12. Take-home: real artificial consciousness is very unlikely along current trajectories. www.cambridge.org/core/journal...
Call for Commentary Proposals - Conscious artificial intelligence and biological
Call for Commentary Proposals - Conscious artificial intelligence and biological naturalism
www.cambridge.org
Reposted by Simon van Gaal
elife.bsky.social
🧠 Did you really see that? Or did your brain just think you did?

How confidently we report what we see can shape our brain activity. That means our own reporting habits might blur the line between “aware” and “unaware” in research on #consciousness.
buff.ly/L3c7sVe
abstract blue and ink image that resembles a slice through a brain
Reposted by Simon van Gaal
canalesjohnson.bsky.social
I am opening one PhD position at the Neuroscience Center @uhneuro.bsky.social, focusing on large-scale neural interactions in perception and prediction (ECoG/LFPs/MEG) across human and non-human primates using comp. modeling and information theory. contact: www.helsinki.fi/en/hilife-he...
Large-scale interactions in perception and prediction across species | HiLIFE – Helsinki Institute of Life Science | University of Helsinki
Andres Canales-Johnson research group
www.helsinki.fi
Reposted by Simon van Gaal
fahrenfort.bsky.social
Finally the Version of Record of our paper "Criterion placement threatens the construct validity of neural measures of consciousness" is out in @elife.bsky.social as *fundamental* and *compelling*!
doi.org/10.7554/eLif....
Reposted by Simon van Gaal
n41c0.bsky.social
(couldn't wait till Monday because I'm impatient) this lovely preprint has the last part of my phd work and now is out and about 🎉🎊. will write a thread on Monday. stay tuned 📻.

osf.io/preprints/ps...
Reposted by Simon van Gaal
n41c0.bsky.social
To celebrate the defence of my PhD, and thanks to
@ibbamsterdam.bsky.social, I will host a symposium titled "Vision as prediction: learning, action, and biases" on June 6. Program, registration and more information here: bit.ly/43reOgR
Reposted by Simon van Gaal
fahrenfort.bsky.social
🎉 Our paper "Criterion placement threatens the construct validity of neural measures of consciousness" is now out in eLife! 🎉
TL;DR: Both simulations and empirical data show that you should not post-hoc sort neural data based on subjective measures of consciousness.
elifesciences.org/reviewed-pre...
Criterion placement threatens the construct validity of neural measures of consciousness
elifesciences.org
Reposted by Simon van Gaal
stijnnuiten.bsky.social
Neural and computational analyses further revealed that task effects on preparatory activity over motor cortex, resembling a starting point bias, were smallest on trials with high phasic pupil-linked arousal. (5/6)
Bias manipulation modulates pre-stimulus motor cortex lateralisation, reflecting a starting point bias. This task-related modulation of lateralised activity is weakest on trials with large phasic pupil-linked arousal.
Reposted by Simon van Gaal
elife.bsky.social
Over 100 organisations still consider eLife papers when evaluating research contributions since losing our Impact Factor: buff.ly/wGQWNqs

Help us rally more community support for research reform and let us know your funder or institution’s stance on the #ImpactFactor 💬
95% still consider E life papers in funding and hiring decisions