Mehrdad Kashefi
- Reposted by Mehrdad KashefiWhile humans spontaneously dance to a beat, the evolutionary origins of this ability remain debated. Behavioral work has shown that primates can move to auditory rhythms after training. Our question was: How does this association emerge in the brain? www.biorxiv.org/content/10....
- Reposted by Mehrdad KashefiThis week's sensorimotor superlab reading list is out superlab.ca/posts/2025-12-19-li… @andpru.bsky.social @diedrichsenjorn.bsky.social @gribblelab.org #neuroskyence #psychscisky #Sensorimotor
- Reposted by Mehrdad KashefiAre you interested in a MSc/PhD in human sensorimotor neuroscience? Learn to design experiments, analyze data, read & write papers, present at conferences, & work with a vibrant group of students & faculty in a world-class research environment. #neuroskyence #psychscisky gribblelab.org/join.html
- The Sensorimotor Superlab with @gribblelab.org and @andpru.bsky.social is a unique place to work and learn. We are now accepting MSc and PhD applications for Fall 2026. Join our awesome team at Western University... For application instructions see diedrichsenlab.org and gribblelab.org/join.html!
- Reposted by Mehrdad Kashefi0/7 Excited to 📢 that our (@mkashefi.bsky.social @diedrichsenjorn.bsky.social @andpru.bsky.social) new preprint on sequence preparation and its effect on reaction time is now up: www.biorxiv.org/content/10.1... Please get in touch if there is anything you'd like to discuss! Brief summary 🧵👇
- Reposted by Mehrdad KashefiThrilled that our paper is out today in Nature! www.nature.com/articles/s4...
- Reposted by Mehrdad KashefiThe neural control & computation lab is recruiting! If you're interested in using large-scale neural population recordings to study how the brain learns to produce complex and flexible behaviours, please get in touch. www.ncclab.ca
- Reposted by Mehrdad KashefiThis week's sensorimotor superlab reading list is out superlab.ca/posts/2025-09-12-li… @andpru.bsky.social @diedrichsenjorn.bsky.social @gribblelab.org #neuroskyence #psychscisky #Sensorimotor
- Reposted by Mehrdad KashefiVariance partitioning is used to quantify the overlap of two models. Over the years, I have found that this can be a very confusing and misleading concept. So we finally we decided to write a short blog to explain why. @martinhebart.bsky.social @gallantlab.org diedrichsenlab.org/BrainDataSci...
- Reposted by Mehrdad KashefiNew preprint from the lab! 🧠 Led by Juliana Trach, w/ Sophia Ou Using fMRI, we discovered evidence for time-sensitive reward prediction errors (RPEs) in the human cerebellum. Builds on, and extends, recent work in both rodents and NHPs
- The human cerebellum encodes temporally sensitive reinforcement learning signals biorxiv.org/content/10.1101/202…
- Reposted by Mehrdad KashefiExited to share tomorrow new updates on trying to figure out how the neocortex and cerebellum talk to each other. Work by @carobellum.bsky.social, Ali Shabazi, and others in the lab!
- Excited to share my latest work with @jonathanamichaels.bsky.social @diedrichsenjorn.bsky.social & @andpru.bsky.social! We asked: How does the motor cortex account for arm posture when generating movement? Paper 👉 www.biorxiv.org/content/10.1... 1/10
- The problem: Moving your arm to grab coffee requires different muscle commands depending on where your arm starts. We know the brain must incorporate posture when planning movement—but how neural dynamics achieve this remains unclear. 2/10
- Why this problem exists: Most insights come from center-out tasks, where all movements start from one spot. Here, reach direction and final posture are always correlated—making it impossible to separate movement dynamics from posture encoding. 3/10
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View full threadThanks for reading 🙏 The paper also covers recordings from SMA, pre-SMA, dlPFC & GPi. Full details here ⬇️ www.biorxiv.org/content/10.1... 10/10
- Reposted by Mehrdad KashefiWe're excited to share our new paper: “cTBS of prefrontal cortex in the behaving macaque: no evidence for within-target inhibition or cross-hemisphere disinhibition of neural activity” tinyurl.com/cTBSPFCNHP w/ @brian-corneil.bsky.social What did we find? Mostly... what we didn’t! 🧵
- Heading to #cosyne2025 ? We're presenting new data exploring the geometry of neural dynamics in M1, PMd, PFC, SMA, and GPi during reaching movements with varying start locations, directions, and extents. Find me at Poster Session 3-091 — or anytime before or after!
- Reposted by Mehrdad KashefiGoing to #Cosyne2025? Check out two posters from the lab, presented by @jonathanamichaels.bsky.social and @mkashefi.bsky.social.
- Reposted by Mehrdad KashefiNew lab paper out now in JEP:G! From Juliana Trach, @mdebettencourt.bsky.social , @angelaradulescu.bsky.social , and myself. "Rewards Transiently and Automatically Enhance Sustained Attention." t.co/r72fZRn3Nh 👇
- Reposted by Mehrdad KashefiCan the motor system use sensory expectations to prepare for unexpected events? Excited to share my latest work with @andpru.bsky.social – where we establish that sensory expectations shape neural population dynamics in motor circuits! 🧵 and paper below 1/
- It’s striking how profoundly the prevailing theoretical framework shapes our thinking.
