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Plasticity Lab

@plasticity-lab.bsky.social
732 followers 213 following 82 posts

We’re the Plasticity Lab at Cambridge University, led by Tamar Makin. We study the neural basis of hand function and dysfunction, exploring how technology can enhance movement functionality for able and disabled individuals of all ages: plasticity-lab.com

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Plasticity Lab @plasticity-lab.bsky.social · 12/06/2026
We're looking for a motivated intern to join us this summer! Find the details below for this exciting opportunity to work on developing a neurotech podcast 🧠 🦾 Deadline is Monday 15th June (11:00am BST), so apply soon!
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Plasticity Lab @plasticity-lab.bsky.social · 03/06/2026
Applications Open! We are looking for a motivated summer intern to support a podcast in development in collaboration with the Plasticity Lab, exploring what restorative, assistive, and augmentative neurotechnology reveals about hidden human capacity 🦾 Full details here: forms.office.com/e/PDjanEYkSE
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Plasticity Lab @plasticity-lab.bsky.social · 02/03/2026
This study was a collaborative and interdisciplinary effort, bridging cognitive neuroscience and robotics. We’d like to thank all the researchers and the participants who made this work possible! Thanks for reading 🙏 Full text here: www.cell.com/current-biol...
cell.com
Broad skill generalization with an extra robotic body part
Molina-Sanchez et al. show that after 7 days of training with an extra robotic digit, motor skill generalizes across tasks, body postures, and body parts used to wear or control the device. Training r...
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Plasticity Lab @plasticity-lab.bsky.social · 02/03/2026
Finally, despite broad skill transfer, when Third Thumb use was optional in a set of naturalistic tasks, participants preferred their hand over the device. This suggests that real-world adoption of these technologies will depend on more than skill transfer, cognitive effort, or embodiment.
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Plasticity Lab @plasticity-lab.bsky.social · 02/03/2026
However, we observed that the toe-based control mechanism led to a small reduction in balance, suggesting modest behavioural trade-offs associated with device use.
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Plasticity Lab @plasticity-lab.bsky.social · 02/03/2026
We also found that training improved participants’ sense of agency over the Third Thumb. The greater their motor gains after training, the stronger their sense of agency over the device❗
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Plasticity Lab @plasticity-lab.bsky.social · 02/03/2026
If Third Thumb skill isn’t tied to low-level body mappings, it may draw on cognitive mechanisms and be sensitive to increased cognitive load. Third Thumb performance dropped slightly while simultaneously doing a math task — but training reduced the cognitive effort required to use the device❗
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Plasticity Lab @plasticity-lab.bsky.social · 02/03/2026
Next, we tested two new Third Thumb–body mappings: 1) the Third Thumb was controlled by the heels instead of the toes; 2) it was worn on the left hand instead of the right. Motor skill still transferred, suggesting learning isn’t tied to specific sensorimotor body mappings‼️
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Plasticity Lab @plasticity-lab.bsky.social · 02/03/2026
We then tested participants on an untrained task involving new control demands. Participants still improved, showing that Third Thumb skill transferred to new task demands❗
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Plasticity Lab @plasticity-lab.bsky.social · 02/03/2026
First, we trained participants intensively with the Third Thumb for 7 days across a range of motor tasks. Despite most training happening at home with minimal supervision, participants improved in every task.
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Plasticity Lab @plasticity-lab.bsky.social · 02/03/2026
We tested whether motor skill with an extra robotic thumb (the Third Thumb), worn on the right hand and controlled by the toes, transfers beyond the tasks and conditions participants trained on.
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Plasticity Lab @plasticity-lab.bsky.social · 02/03/2026
If learning is tied to a specific body mapping (i.e., a particular limb wearing/controlling the device), motor skill may not transfer well when the mapping/context changes. If learning relies on body-independent, abstract representations, it may be more flexible but may increase cognitive demands.
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Plasticity Lab @plasticity-lab.bsky.social · 02/03/2026
Wearable robotic limbs for body augmentation could transform how we interact with the world — but their everyday use will depend on whether learned motor skills transfer beyond training contexts.
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Plasticity Lab @plasticity-lab.bsky.social · 02/03/2026
Can we use robotic augmentation limbs as flexibly as our natural limbs⁉️ 🧨 Our new study, just out in @currentbiology.bsky.social, tested this using the Third Thumb @daniclode.bsky.social: a wearable robotic extra thumb you control with your toes! www.cell.com/current-biol... ‼️‼️
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Plasticity Lab @plasticity-lab.bsky.social · 17/11/2025
Markerless tracking shouldn’t feel like a coding project! We released TrackStudio (arxiv.org/abs/2511.07624), a fully graphical, open-source toolkit for markerless human motion tracking. It enables use of current 2D/3D tools and video synchronisation without coding.
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Plasticity Lab @plasticity-lab.bsky.social · 11/11/2025
Our lab has been lucky to know and work with Kirsty Mason for many years - she’s an incredible woman whose strength and openness have taught us so much about recovery and resilience 💛 If you can, please check out her GoFundMe and show some support! gofund.me/0283e864d
gofund.me
Donate to From Trauma to Triumph: My 18-Year Life Day Journey, organized by Kirsty Mason
❤️‍ When Everything Changed As I type this, on the 7th November 2… Kirsty Mason needs your support for From Trauma to Triumph: My 18-Year Life Day Journey
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Nature @nature.com · 21/08/2025
A brain-imaging study of people with amputated arms has upended a long-standing belief go.nature.com/3Jp9NPG
go.nature.com
The brain’s map of the body is surprisingly stable — even after a limb is lost
Study challenges the textbook idea that the brain region that processes body sensations reorganizes itself after limb amputation.
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Plasticity Lab @plasticity-lab.bsky.social · 21/08/2025
Super pleased to see this heroic effort finally in print!! Many thanks to Hunter, our amazing study participants, and everyone else who made this fantastic study come true.
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Sam McDougle @actlab.bsky.social · 24/07/2025
Happy to announce that my lab @ Yale Psychology (actcompthink.org) will be accepting PhD applications this year (for start in Fall '26)! Come for the fun experiments on human learning, memory, & skilled behavior, stay for the best 🍕 in the US. Please reach out if you have any questions!
actcompthink.org
Homepage of the Action, Computation, & Thinking (ACT) Lab, Yale department of psychology
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Plasticity Lab @plasticity-lab.bsky.social · 22/07/2025
Awesome to see our own @daniclode.bsky.social featured as a highlight of the UN #AIforGood Summit! Check out the summary of her talk—plus other key discussions on how AI can restore agency, enhance accessibility, and foster deeper human connection: www.linkedin.com/posts/ai-for...
linkedin.com
LIVE from the #AIforGood Global Summit! | AI for Good
LIVE from the #AIforGood Global Summit! What was just covered at Frontier Stage? AI for restoring agency, enhancing accessibility, and empowering deeper human connection. Here’s a summary of the sess...
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Plasticity Lab @plasticity-lab.bsky.social · 17/07/2025
In summary: – Force control offers better early motor performance – EMG fosters learning generalization – Raw EMG contains hidden potential Read the full preprint at doi.org/10.1101/2025.06.16.658246. Thanks to all co-authors and participants! 12/12
doi.org
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Plasticity Lab @plasticity-lab.bsky.social · 17/07/2025
So, what does this tell us? EMG control may be harder initially, but it offers a richer signal and better transfer of learning. With optimised hardware and software, it could be a powerful interface for future augmentation device control. 11/12
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Plasticity Lab @plasticity-lab.bsky.social · 17/07/2025
And how do users perceive the Thumb? Participants reported a strong sense of agency (control over the Thumb) but no body ownership (it didn’t feel like part of the body). All categories of embodiment were rated similarly for both EMG and FS. 10/12
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Plasticity Lab @plasticity-lab.bsky.social · 17/07/2025
Using predictive modelling, we found the force control signal could predict performance, whilst the processed EMG control signal could not predict EMG performance. But importantly, the raw EMG signal could act as a predictor. This suggests pre-processing might discard important information. 9/12
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Plasticity Lab @plasticity-lab.bsky.social · 17/07/2025
To provide a mechanistic insight into this generalisation, we cross-correlated the toe-movement signal and muscle signal, and observed a high correlation during EMG control, suggesting participants are expressing force-related toe movements while using the EMG control, contributing to learning! 8/12
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Plasticity Lab @plasticity-lab.bsky.social · 17/07/2025
But we also saw that the control method participants started with impacted learning transfer to their second control method. Beginning with EMG control led to superior transfer when switching to force control – suggesting muscle control is a better tutor for generalisable learning. 7/12
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Plasticity Lab @plasticity-lab.bsky.social · 17/07/2025
On the proportional control task completed before and after training, force control continued to demonstrate a clear advantage. However, participants showed similar learning gains across both control modalities. 6/12
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Plasticity Lab @plasticity-lab.bsky.social · 17/07/2025
Surprisingly, an additional cognitive load during the collaboration motor task did not affect performance for either control modality. Participants also performed similarly in the cognitive load arithmetic task, regardless of control. 5/12
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Plasticity Lab @plasticity-lab.bsky.social · 17/07/2025
Across all training tasks, both control methods enabled use of the Third Thumb, but force control consistently yielded better task performance. 4/12
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Plasticity Lab @plasticity-lab.bsky.social · 17/07/2025
EMG-based control is closer to the neural source; muscle activity precedes motion. Our initial hypothesis: EMG should enable more intuitive and efficient learning. We compared both control modalities across multiple motor tasks using a counterbalanced within-participants design. 3/12
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Plasticity Lab @plasticity-lab.bsky.social · 17/07/2025
The Third Thumb is designed to extend and enhance the motor abilities of an already fully functional hand. It was initially designed to be proportionally controlled by movement of the wearer’s toes via force sensors. But what if we tapped into muscle signals directly instead? 2/12
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Plasticity Lab @plasticity-lab.bsky.social · 17/07/2025
Can you control an extra robotic finger just by flexing your leg muscles? In our new study, we put EMG-based muscle control to the test, comparing it to traditional toe force sensor control for operating the Third Thumb (designed by @daniclode.bsky.social). 1/12
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Maggie Szymanska @maggieszymanska.bsky.social · 15/07/2025
Great start to #IMRF2025 with Symposium 2 all about body representation and some amazing talks! Really enjoyed hearing about how sounds can affect it, e.g. with the auditory pinocchio illusion 🔊, something quite different than what I work on but so fun!
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Plasticity Lab @plasticity-lab.bsky.social · 09/07/2025
Exciting day at the fascinating UN #AIforGood summit! @daniclode.bsky.social presented on designing for augmentation and the Third Thumb, Tamar then presented our research looking at the neural embodiment of robotic limbs! Smashing it 🦾
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Plasticity Lab @plasticity-lab.bsky.social · 07/07/2025
Thrilled to share our most recent work led by our brilliant PhD student @mariamolinasan.bsky.social, exploring generalisation of motor learning with a robotic limb, featuring The Third Thumb 🦾
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Plasticity Lab @plasticity-lab.bsky.social · 04/07/2025
Our PhD students @maggieszymanska.bsky.social and Julien Russ ready to present their posters today at #BRNet2025! Find them in the poster room at 2pm, talking about phantom limb pain and using EMG to control the Third Thumb 🧠
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Plasticity Lab @plasticity-lab.bsky.social · 03/07/2025
Having a great time in Utrecht at #BRNet2025! Today, our very talented postdoc @celiafoster.bsky.social and amazing PhD student Ema Jugovic presented their posters. Really great work showcasing our new Third Thumb studies 🧠
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Maggie Szymanska @maggieszymanska.bsky.social · 03/07/2025
Great talk by Matej Hoffman starting off Day 2 of #BRNet2025. Really exciting to see our BOLDkids research on congenital limb difference mentioned as well! Also - what an amazing venue 😊
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Plasticity Lab @plasticity-lab.bsky.social · 27/06/2025
Our lab had a fantastic time this week presenting our current work at @uksensorimotor25.bsky.social in Oxford 🧠
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Tal Seidel Malkinson @seideltal.bsky.social · 11/06/2025
🧠New postdoc position - come work with us in France! 🥐👩‍🔬 Two-Year Postdoc Position on the Role of Temporal Integration in Visual Attention Using Human Intracerebral Recordings | EURAXESS euraxess.ec.europa.eu/jobs/351721 📆Starting Date: October 2025 ⏱️Application deadline: 31 Aug 2025
Nancy, France
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Plasticity Lab @plasticity-lab.bsky.social · 19/06/2025
Check-out our latest research! 🧠 @lucydowdall.bsky.social's PhD work looking at the sensory representation of an artificial limb is now up on bioRxiv! doi.org/10.1101/2025.06.16.658246 🦾 see her thread below highlighting some of our key findings
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Plasticity Lab @plasticity-lab.bsky.social · 12/05/2025
Great video by @wired.com showcasing the Third Thumb! 👍👍👍We're super grateful to be able to work with the amazing Dani Clode and investigate how our brains 🧠 accomodate motor control of an extra robotic finger! The segment on the Third Thumb starts at 6:02 - you can watch here: rb.gy/t8gdhs
rb.gy
6 Arms, 3 Thumbs: I Tested The Future of Robotic Limbs | Superhuman | WIRED
Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.
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Plasticity Lab @plasticity-lab.bsky.social · 01/05/2025
Hristo’s presenting his poster today and tomorrow at #NCMPan25! Come and check out his work on information content in sensorimotor cortex in controls and people with amputations at 2-F-72 @ncmsociety.bsky.social
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Plasticity Lab @plasticity-lab.bsky.social · 29/04/2025
Come check out Celia’s poster today and tomorrow at #NCMPan25 and learn about touch localisation abilities with the Third Thumb! 1-F-73 @ncmsociety.bsky.social @celiafoster.bsky.social
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Plasticity Lab @plasticity-lab.bsky.social · 14/04/2025
Applications close tomorrow for our summer internship position! plasticity-lab.com/internship
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Plasticity Lab @plasticity-lab.bsky.social · 01/04/2025
Applications are open for the Plasticity Lab summer internship at the University of Cambridge @mrccbu.bsky.social 🦾 Work with an interdisciplinary team on motor augmentation and wearable tech, exploring enhancement of movement capabilities 🧠 Apply by April 15th: plasticity-lab.com/internship
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Claudia Clopath Lab @clopathlab.bsky.social · 21/02/2025
Want to hear more about how feedback can guide learning in RNNs for motor adaptation. Here is our new paper in Nat. Com. with Barbara Feulner and @juangallego.bsky.social www.nature.com/articles/s41...
nature.com
A neural implementation model of feedback-based motor learning - Nature Communications
How the brain adapts our movements to new conditions remains unclear. Here, the authors show that a recurrent neural network that controls its output using error-based feedback can learn to count...
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Plasticity Lab @plasticity-lab.bsky.social · 19/02/2025
We truly believe neurotechnology developments should be shaped by the end-users, not just the researchers! But how can we ensure ground-breaking developments are guided by the people whose lives they will impact the most? Read more here: rb.gy/7zjf6e
rb.gy
Neurotechnology developments shaped by researchers and end-users
Neurotechnology refers to a broad range of technologies designed to interface with the nervous system, with the aim of treating neurological disorders, enhancing cognitive function, and improving over...
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Plasticity Lab @plasticity-lab.bsky.social · 23/01/2025
Our website contains even more information and curated resources to help support researchers in the aim of taking a more user-centered approach towards neurotechnology, in addition to details for how to get involved in this initiative www.inclusive-neurotech.co.uk
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Plasticity Lab @plasticity-lab.bsky.social · 23/01/2025
Neurotech is rapidly evolving, but user-centred technologies can only succeed if their development actively involves the end user. We’ve published a basic roadmap for supporting inclusive design testing - highlighting key strategies, stakeholders, representation, and measurable outcomes rb.gy/ng1jus
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