Padma Sundaram

🚨New preprint from the Biomag lab at @MGHMartinos Cellular Mechanisms of Transcranial Magnetic Stimulation in Climbing Fibers and Purkinje Neurons in the Cerebellum biorxiv.org/content/10.648… #Cerebellum #BrainStimulation #TMS 🧵1/6

🧵6/6 Looking at the different currents induced by TMS and their respective thresholds will be useful to better understand the biphysical mechanisms and expand TMS applications.  Thanks to the @NIH Brain Initiative, @NIH_NINDS and @NIBIBgov for funding this work.

🧵5/6 Current source density analysis of the laminar data helps localize the current sources to be near the near the bend of the climbing fibers and near the axon initial segment of the Purkinje cells

🚨New preprint from the Biomag lab at @MGHMartinos Cellular Mechanisms of Transcranial Magnetic Stimulation in Climbing Fibers and Purkinje Neurons in the Cerebellum biorxiv.org/content/10.648… #Cerebellum #BrainStimulation #TMS 🧵1/6

x.com/PadmaBiomag/st… It's our great honor to making the large size PCB 1.5m*0.75m with total 20pcs,fantastic tech and the PCB design is from the talant Harvard team!

Join us 𝑀𝑜𝑛𝑑𝑎𝑦 June 9th, 2025 at 12 pm EDT for an exciting BrainMap Webinar 🧠🧑‍⚕️🩻🧲🧠 @MGHMartinos Prof. Jeremy Schmahmann, MD - MGH (@SchmahmannLab ) Webinar link: martinos.org/event/brainmap… Contact the organizer for more info: @abbas_neuro

The Martinos Center is proud to present the story of David Cohen, the inventor of #MEG and father of #biomagnetism. You can read the biography online, with our compliments, at the address below. Email gboas@mgh.harvard.edu for PDF reprints. meg.martinos.org/david-cohen-bi…

Thanks to @Hopetimepcb for manufacturing the PCB coils for us!

You can download the open-source software and PCB designs and get started.

Do you work with OPM-MEG for neuroimaging 🧠? If you want to DIY your own PCB field nulling coils, check out our new preprint: biorxiv.org/content/10.110… With @mainakjas, Jack Kamataris, @abbas_neuro, Teppei Matsubara, @mshamalai and others from @MGHMartinos MEG.

Why has it been challenging to stimulate neurons with TMS in in vitro preparations? We show how conductivity boundaries can have significant effects on the effective electric field inside the tissue. Now in @brainstimj brainstimjrnl.com/article/S1935-…