Hi Charlotte, very excited for you as you embark on this next chapter—wishing you all the best!🌟
16.07.2025 17:06 — 👍 0 🔁 0 💬 1 📌 0@jduffy9.bsky.social
PhD Candidate at the O’Connell Lab, Trinity College Dublin. Interested in all things decision-making.
Hi Charlotte, very excited for you as you embark on this next chapter—wishing you all the best!🌟
16.07.2025 17:06 — 👍 0 🔁 0 💬 1 📌 0Was there a prize for best fan?
16.07.2025 16:17 — 👍 0 🔁 0 💬 0 📌 0New research study from my music and health psychology lab -
Masters student Erin Smith is looking for adults to answer her 15 minute survey about musicality and neurodivergent traits.
#music #autism #adhd #skills
eu.surveymonkey.com/r/XL38HFY
Disentangling sources of variability in decision-making — a Review by Jade S. Duffy, Mark A. Bellgrove, Peter R. Murphy & Redmond G. O’Connell
www.nature.com/articles/s41...
@jduffy9.bsky.social @neuromurphy.bsky.social @redmondoconnell.bsky.social
#neuroscience
I'm looking for a public dataset of young+older people doing a simple perceptual decision-making task, with sufficient trial + subject numbers. Ideally, multiple stimulus difficulty levels but no manipulations (conditions, task switching etc).
This must exist - tips for where to look? 🧒👨🦳🧠
These approaches will enable SSMs to handle greater complexity without adding free parameters 🔧. By combining them, we open exciting avenues to deepen our understanding of choice variability in both health and disease 🧠💡.
24.03.2025 12:29 — 👍 4 🔁 0 💬 0 📌 0The final stream leverages electrophysiology ⚡ to identify neural variability 🧠 and integrate it into models 📊. Measuring neural signals 🧬 helps constrain variability parameters 🔧, bridging abstraction levels and deepening our understanding of variability 🔄.
24.03.2025 12:29 — 👍 1 🔁 0 💬 1 📌 0Another promising avenue is developing advanced task paradigms 🎮 that carefully manipulate stimuli and timings 🎯, enabling estimation of parameters 🔍 often challenging to identify in conventional models 📊. This approach uncovers deeper insights into decision-making variability 🧠.
24.03.2025 12:29 — 👍 3 🔁 0 💬 1 📌 0Recent advances bring us closer to models capturing distinct variability sources 🔄. A key area is how behavioral 👆 and neural 🧠 states evolve during a task ⏳. Accounting for these changes may improve parameter estimates 📊 and clarify variability 🔄.
24.03.2025 12:29 — 👍 1 🔁 0 💬 1 📌 0Identifying the psychological 🧠 and neurobiological 🧬 causes of variability is a key goal of computational research 💻. Sequential sampling models (SSMs) capture variability 🔄, accuracy ✅, and RT ⏱️ across tasks 🎯, but limitations 🔧 prevent them from capturing all variability sources🔄 and timescales⏳.
24.03.2025 12:29 — 👍 2 🔁 0 💬 1 📌 0Variability, in itself, is a stable, reliable trait—increased across many brain disorders 🧠⚠️—and can explain more variance ⚖️ than even the most robust experimental manipulations 🔬. Disentangling its many sources operating across distinct timescales ⏳⏰is no easy feat 🧩.
24.03.2025 12:29 — 👍 1 🔁 0 💬 1 📌 0In life, 3 things are certain: death, taxes, and decision-making variability🧠. Our review tinyurl.com/4dcwafc4 explores how computational models 💻 explain variability, their limits, and recent advances. A thread🧵👇
@redmondoconnell.bsky.social @neuromurphy.bsky.social Mark Bellgrove (not on Bluesky)