Jeroen Smeets
@jbjsmeets.bsky.social
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📥 149
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Scientist investigating how we use our senses to control our movements
A new, Short and Sweet open-access paper on how briefly hiding the hand impedes goal-directed arm movements. Briefly is really brief: we find a decrease in performance in goal-directed movements due to just a few ms without vision of the hand (target remains visible).
doi.org/10.1177/0301...
20 days ago
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Jeroen Smeets
VR Summit
2 months ago
Our next
#SpeakerSpotlight
for VR Summit 2025! ✨ Featuring: Gavin Buckingham (Univ. of Exeter) Jason Friedman (Tel Aviv Univ.) Jeroen Smeets (VU Amsterdam) 📅 Summit Oct 20–21 • Rotunde Bochum Register/submit:
vrs.rub.de
#VRSummit
#XR
#VR
#HCI
#Neuroscience
#VRresearch
#VRcademicSky
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Following a discussion with Mindy Levin about the limitations of using VR in motor control and rehabilitation, I joined her in writing this review.
add a skeleton here at some point
4 months ago
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Eiko Fried
7 months ago
OK so totally crazy thought but hear me out how about we stop paying so much money to Elsevier and Wiley and Springer and other publishers and like use that money to finance universities so we don't shut down programs in the Netherlands right now ..
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For those who can understand some Dutch: an interview on Dutch National radio about broken escalators, the size-weight illusion, and motion sickness:
www.nporadio1.nl/nieuws/binne...
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Waarom gaat over een stilstaande roltrap lopen zo moeizaam?
Je hebt het vast weleens gevoeld: het vreemde en bijna onhandige gevoel wanneer je een stilstaande roltrap oploopt. Waarom is dat eigenlijk zo ongemakkelijk, terwijl het in principe gewoon een trap is...
https://www.nporadio1.nl/nieuws/binnenland/63a9e3d0-2673-4af8-9624-aa2c76ec154d/waarom-gaat-het-over-een-stilstaande-roltrap-lopen-zo-moeizaam
7 months ago
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When trying to learn from reward, you explore after non-rewarded trials. One generally assumes that this exploration is random. In our new paper, in contrast, we find that participants repeat changes in the same direction more than random exploration predicts.
doi.org/10.1007/s002...
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The sign of exploration during reward-based motor learning is not independent from trial to trial - Experimental Brain Research
Humans can learn various motor tasks based on binary reward feedback on whether a movement attempt was successful or not. Such ‘reward-based motor learning’ relies on exploiting successful motor comma...
https://doi.org/10.1007/s00221-025-07074-z
7 months ago
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In a recent paper, it was argued that the tendency to direct saccades between target and distractor depends on their distance. In a letter to the editor, we argue that their data can be easily explained by assuming that 20% of the saccades is directed at that global location.
doi.org/10.1016/j.vi...
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Redirecting
https://doi.org/10.1016/j.visres.2025.108589
8 months ago
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Pascal Mamassian
8 months ago
The dynamic version is even more disturbing...
add a skeleton here at some point
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Donders Institute
9 months ago
@yfvisser.bsky.social
Visser promoveerde vorige maand op haar onderzoek naar communicatie tussen brein en spieren onder stress. Vandaag ook in
@nrc.nl
:
www.nrc.nl/nieuws/2025/...
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Je spieren zijn meestal nét wat meer voorbereid op de ene actie dan op de andere
Durf te vragen: Neurowetenschapper Yvonne Visser wil snappen hoe het gezonde brein werkt en hoe we besluiten nemen. „Daar staan we nooit bij stil maar dat is eigenlijk heel bijzonder.”
https://www.nrc.nl/nieuws/2025/02/06/je-spieren-zijn-meestal-net-wat-meer-voorbereid-op-de-ene-actie-dan-op-de-andere-a4881951
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In this new paper by Eleonora Assarioti, we found that in perceptual discrimination tasks, participants tend to choose the option with the lowest explicit motor costs. This challenges the view that the motor system merely executes decisions.
dx.doi.org/10.1111/ejn....
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Reaching Distance Influences Perceptual Decisions
Participants performed two perceptual discrimination tasks in which we manipulated the motor costs of the two response options by varying the distance to the response buttons. We found a bias towards...
http://dx.doi.org/10.1111/ejn.70006
10 months ago
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@ns-online.bsky.social
: waarom adviseren jullie de reizigers van Groningen naar Hilversum (en Utrecht om in Amersfoort over te stappen met een kwartier wachten, terwijl de ic dit weekend gewoon rechtstreeks door rijdt naar Hilversum?
@rover-online.bsky.social
12 months ago
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Many authors and textbooks assume that sensory recalibration involves adjusting some consistent internal representation, map, or body schema. In an elegant study, Fuchs & Heed provide new evidence that this is not the case: tactile recalibration is task-specific.
doi.org/10.1111/ejn....
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Rescaling perceptual hand maps by visual‐tactile recalibration
After concurrent visual and tactile stimuli have been presented repeatedly with a spatial offset, unisensory tactile stimuli, too, are perceived with a spatial bias towards the previously presented v...
https://doi.org/10.1111/ejn.16571
12 months ago
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When I was on Twitter, I asked how scientists determine the age of their human participants. As about two-thirds of the respondents (and 2/3 of authors) ask for rounded-down age, the average ages reported in the literature may be biased by half a year. Open access at
doi.org/10.1016/j.ac...
12 months ago
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Heleen Slagter
about 1 year ago
Dear all, I am looking for a postdoc for an ERC-funded project on meditation and the predictive brain in my lab. More details can be found here:
heleenslagter.com/positions
Feel free to reach out with any questions! Please help spread the word!
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Positions
https://heleenslagter.com/positions
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Scientists have a peculiar way to report the average age of their human participants. They suggest they know this average with a few days precision, but introduce a half year bias. Read about it in my short paper
doi.org/10.1016/j.ac...
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Redirecting
https://doi.org/10.1016/j.actpsy.2024.104457
over 1 year ago
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JJ
over 1 year ago
I am recruiting two PhD students to work on proprioception in an FWO funded project:
www.kuleuven.be/personeel/jo...
#sensorimotor
Spread the word
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This is an elegant experiment using a new task (grasping thin objects using a precision grip) to find out how grasping is controlled. The answer: "the digits-in-space hypothesis provides the most plausible account of the data". Worth reading!
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over 1 year ago
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Floris de Lange
over 1 year ago
🚨Job alert!🚨 Are you curious about curiosity, and looking for a post-doc position? Then please consider applying:
www.ru.nl/en/working-a...
Feel free to e-mail/DM me if you have questions. Thanks very much for sharing/re-posting!
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Chris Klink
over 1 year ago
The final version of the paper is now openly available at Neuron via
www.cell.com/neuron/fullt...
add a skeleton here at some point
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Luke Miller
almost 2 years ago
New open PhD position in my lab at the Donders Institute! We are looking for a motivated PhD candidate with an interest in the computational underpinnings of body augmentation and embodiment. Deadline: 14 February, 2024 Link:
www.ru.nl/en/working-a...
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Andrew Pruszynski
almost 2 years ago
Want to come do a post-doc with me (or anyone else at Western)? Get in touch soon... the Western Postdoc Fellowship Program has a deadline coming up:
t.co/ET0v56dQwn
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Interested to find out what determines whether visual information about one's motion in virtual reality leads to cyber-sickness? We have a (funded) PhD position available to answer this question.
werkenbij.vu.nl/ad/phd-posit...
Apply before January 7th
almost 2 years ago
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Today, I’ll be presenting my poster on the control of pointing at
#sfn23
. If you are in DC: Poster board CC10.
about 2 years ago
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Interested in
#variability
and motor
#learning
? Visit the Vrije Universiteit Amsterdam on December 6 for the PhD defense of Nina van Mastrigt and symposium with presentations by
@jjodx.bsky.social
, Marit Ruitenberg and Pieter Medendorp + a panel discussion on motor exploration outside the lab!
about 2 years ago
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Jeroen Smeets
Elisabeth Bik - Perpetrator 5, a fraudulent microbiologist
about 2 years ago
If you agree with me that academics should be free to post their opinion about complex conflicts or politics (as long as it is not hate speech or in conflict with their academic roles), please consider signing this petition:
docs.google.com/forms/d/e/1F...
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Open letter to HHMI and eLife, in defense of free expression
To the Board of Directors, eLife and Erin O’Shea, President, HHMI: We, the undersigned life scientists, are writing to express our view that Professor Michael Eisen's social media posts should not b...
https://docs.google.com/forms/d/e/1FAIpQLSfdJyIQzIsTypmmZXIi-RfSjbe4Psp1RIvjXz-DxWJKA5hHIQ/viewform
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We cannot deal with accelerations when intercepting a target. A wheel's valve moves in a way that involves continuously varying accelerations. In a new paper, we show that -in contrast to popular belief- viewing the context of the wheel helps to intercept such a target.
doi.org/10.1167/jov....
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Spatial contextual cues that help predict how a target will accelerate can be used to guide interc...
https://doi.org/10.1167/jov.23.12.7
about 2 years ago
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JJ
about 2 years ago
Reinforcement-based processes actively regulate motor exploration along redundant solution manifolds
royalsocietypublishing.org/doi/10.1098/...
#sensorimotor
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https://royalsocietypublishing.org/doi/10.1098/rspb.2023.1475
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Jimmy Dooley
about 2 years ago
Are there people on Bluesky who are brand new to science? Great! Let’s go through a paper-reading tip I wish I knew when I started grad school: Lots of journal articles have additional secret abstracts! Since repetition is key to learning, I often read all 4 when digging into a paper.
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We have a fully funded PhD position on the neural mechanisms of embodied decision making. A MSc degree, experience with conducting behavioural experiments in human participants, time series analysis and statistical modelling are required.
werkenbij.vu.nl/ad/phd-posit...
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PhD position: The neural mechanisms of Embodied decision-making - 3. Werken bij VU
We believe the decisions we make result from careful thought processes. Yet our body is needed for turning these decisions into actions. Embodied decision-making acknowledges that the decisions we mak...
https://werkenbij.vu.nl/ad/phd-position/d6jrlg
about 2 years ago
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Looking forward to MLMC 2023, held in Washington DC on Friday, November 10th! The abstract submission deadline for MLMC 2023 is September 27th. See the link below for more details, and I hope to see you there! motor-conference.org/openconf.php
about 2 years ago
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David Zipper
about 2 years ago
As of today, Wales has adopted a default speed limit of 20 mph. Wales First Minister: “People will look back and ask themselves why [we] were prepared to tolerate traffic going at excessive speeds in urban areas.”
https://www.bbc.co.uk/news/uk-wales-66774379
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20mph: Wales first UK nation to drop speed limit from 30mph
The default speed limit for built-up areas across Wales reduces from 30mph to 20mph on Sunday.
https://www.bbc.co.uk/news/uk-wales-66774379
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The figure shows results of an experiment. Participants behave on average (the planned analysis) the same in three conditions, but I would conclude from the data that they behave only the same in B and C, but that their behaviour is different in A. How would you call (and analyse) this phenomenon?
about 2 years ago
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