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Uma Mohan

@umamohan.bsky.social
203 followers 404 following 14 posts

Postdoc in Functional Neurosurgery Section NIH/NINDS interested in brain stimulation and memory PhD @ColumbiaBME BS @JHUBME Views are my own

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Uma Mohan @umamohan.bsky.social · 20h
Growing evidence suggests traveling waves in the brain are central to how we process information. Thanks Quanta for shining a light on this emerging field. Honored to be featured alongside my wonderful collaborators @neurojosh.bsky.social, @neuroanup.bsky.social, @ermentrout.bsky.social, and more.
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Ethan Solomon @esolomon.bsky.social · 18/09/2026
Excited to share a new discovery from @stanfordpntlab.bsky.social about the effects of neurostimulation on brain activity. www.medrxiv.org/content/10.6... With our colleagues at the University of Iowa, we explored how intermittent theta burst stimulation (iTBS) changes neural excitability. A 🧵
medrxiv.org
iTBS induces a suppression-rebound pattern in human cortical excitability
Intermittent theta burst stimulation (iTBS) is a widely used form of brain stimulation, developed on the premise that it promotes long-term potentiation (LTP) and neural excitation. However, this is n...
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Uma Mohan @umamohan.bsky.social · 17/09/2026
We are hiring a data engineer! If you are interested in working with human intracranial data, processing pipelines, and an awesome team, please apply! neurojobs.sfn.org/job/39840/sc...
neurojobs.sfn.org
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Salman Qasim @qasimetal.bsky.social · 13/09/2026
Another preprint! This one from my postdoc with @ignaciosaezphd.bsky.social and @xiaosigu.bsky.social. Here we asked how the reward outcomes driving trial-by-error learning leave a lasting imprint on memory strength in the human brain. We used iEEG/computational models of cognition to find:
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Omer Sharon @omersharon.bsky.social · 12/09/2026
Another postdoc piece out today in @natneuro.nature.com! 🧠💤 In unimpaired older adults, frontal tau pathology tracked with lonely NREM slow waves that fail to travel — and these waves predicted worse overnight memory. full-text: rdcu.be/jDcgH2sK8VZa @ucberkeleyofficial.bsky.social 🧵👇
nature.com
Human tau pathology is associated with lonely, nontraveling slow waves linked to memory impairment - Nature Neuroscience
Frontal cortical tau pathology in aging humans is associated with reduced slow-wave travel during sleep. This reduced propagation is associated with poorer overnight memory retention, supporting a lin...
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Salman Qasim @qasimetal.bsky.social · 10/09/2026
First preprint from the lab from postdoc Carlo Cerquetella! Demonstrating that neuronal spiking in the human medial temporal lobe and prefrontal cortex cohere into a redundant, low-dimensional neural correlate of visual attention (captured mostly by saccades) during naturalistic movie viewing.
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Uma Mohan @umamohan.bsky.social · 01/09/2026
Fall wave club resumes tomorrow!
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Rhiannon L Cowan @rhiannon-cowan.bsky.social · 04/08/2026
Check out our new review on insights from single-neuron responses for epilepsy! ⚡️out now in Neurotherapeutics
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WaveClub @waveclubseminar.bsky.social · 20/08/2026
We can't wait to kick off the fall season with Drs. Sangjun Lee and Alexander Opitz in two weeks in our monthly online seminar series on traveling waves. Join us on Wednesday, September 2nd at 12pm ET! And check out their recent publication: www.pnas.org/doi/abs/10.1...
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Rhiannon L Cowan @rhiannon-cowan.bsky.social · 18/08/2026
Check out our new preprint! Using agents and single-neuron recordings in humans to help understand risky decision making. Fantastic work by Alex Price in @neurosmith.bsky.social lab!
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Cory Inman @brainscout.bsky.social · 14/08/2026
Excited to share our lab's recent paper showing that direct electrical stimulation of the human amygdala enhances recognition memory for objects but not scenes. The article is open-access, and we'd love to hear your thoughts! Please share! TY to everyone involved! www.nature.com/articles/s42...
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Neuron @cp-neuron.bsky.social · 21/07/2026
dlvr.it
Neural traveling waves in cortex: Network mechanisms and potential roles in neural computation
Muller et al. review how spiking and synaptic activity are often organized as traveling waves in single cortical areas that modulate excitability, perception, and behavior. Specific features of these waves support spatiotemporal, dynamics-based computations, such as short-term prediction and generative processing.
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Liz Siefert @lizsiefert.bsky.social · 29/06/2026
New preprint! We show low arousal states promote hippocampal ripple genesis in sleep and wake. This bridges rodent work, where ripples predominate during sleep, with human studies reporting ripples during active behavior, identifying low arousal as a common mechanism www.biorxiv.org/content/10.6...
biorxiv.org
Arousal state modulates human hippocampal ripples
Hippocampal ripples are transient, high-frequency oscillations linked to memory replay and consolidation. Ripples are well-characterized in rodents to occur during periods of behavioral inactivity (i....
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WaveClub @waveclubseminar.bsky.social · 29/06/2026
We can't wait to hear from Dr. Roberto Budzinski this week in our monthly online seminar series on traveling waves. Join us on July 1st at 12pm ET!
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Sophia Wilhelm @sophiawilhelm.bsky.social · 28/06/2026
🔔 Our new preprint is out! Here we asked whether sleep spindles - a hallmark NREM rhythm linked to plasticity and memory - changes how well latent working memory representations can be accessed after a nap.
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Bowen Zheng @bwz-brain.bsky.social · 20/06/2026
Finally putting this work out as a preprint :) Thanks to Emery Brown and @earlkmiller.bsky.social for helping conceptualize this work! Code: github.com/Bowen-Zheng-... and a tutorial notebook on the key ideas: github.com/Bowen-Zheng-... A 3-min overview below: (1/)
github.com
GitHub - Bowen-Zheng-99/joint-ssmt: Bayesian state-space model for joint inference of oscillatory dynamics and point-process coupling
Bayesian state-space model for joint inference of oscillatory dynamics and point-process coupling - Bowen-Zheng-99/joint-ssmt
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Matteo Carandini @carandinilab.net · 01/06/2026
Neuropixels + Optogenetics = Neuropixels Opto Combining high-resolution electrophysiology and optogenetics. 960 sites, 28 emitters, 2 colors. Today in @natmethods.nature.com doi.org/10.1038/s415... Thanks to @wellcometrust.bsky.social, @alleninstitute.org, @hhmijanelia.bsky.social & team.
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Ignacio Saez, PhD @ignaciosaezphd.bsky.social · 01/06/2026
How does your brain filter out the noise and focus enough to learn efficiently? In our newest preprint, we use intracranial recordings + computational modeling to explore how selective attention shapes learning and state representations in the human brain 🧠 www.biorxiv.org/content/10.6... 1/🧵
bioRxiv preprint titled 'Coordinated human prefrontal dynamics sustain task-state representations during learning'
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WaveClub @waveclubseminar.bsky.social · 01/06/2026
We can't wait to hear from Dr. Yanliang Shi this week in our monthly online seminar series on traveling waves. @shiyanliang.bsky.social Join us on June 3rd at 12pm ET! Please note the change in day and time.
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Nature @nature.com · 14/05/2026
Mental illness needs visibility more urgently than almost any other area of medicine and health care. A new award from Wellcome and Nature aims to raise its prominence go.nature.com/4dtLr2t
go.nature.com
Mental-health research is too often invisible — it is time to change that
Mental illness needs visibility more urgently than almost any other area of medicine and health care. A new award from Wellcome and Nature aims to raise its prominence.
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Elliot Murphy @elliot-murphy.bsky.social · 01/05/2026
Amazing work ⚡️ 🧠 “Laminar organization of cellular microcircuits modulating human interictal epileptiform discharges” www.nature.com/articles/s41...
nature.com
Laminar organization of cellular microcircuits modulating human interictal epileptiform discharges - Nature Neuroscience
High-density single-neuron recordings in patients with epilepsy revealed interictal discharges are generated by structured laminar circuits. These circuits overlapped with cognitive circuits and could...
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Ben Hayden @benhayden.bsky.social · 06/05/2026
New paper from the lab! "Plasticity and language in the anaesthetized human hippocampus" www.nature.com/articles/s41...
nature.com
Plasticity and language in the anaesthetized human hippocampus - Nature
In the hippocampus, complex processing of sensory stimuli occurs even in the unconscious state.
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Elliot H Smith, PhD @neurosmith.bsky.social · 06/05/2026
New preprint alert! This one led by @neurozarr.bsky.social. Veronica wanted to know how neural traveling waves change during general anesthesia, so we dug back into some of the Utah array data that my PhD advisor collected back in the mid aughts. 🧵 www.biorxiv.org/content/10.6...
biorxiv.org
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WaveClub @waveclubseminar.bsky.social · 04/05/2026
We can't wait to hear from Dr. Zhe Sage Chen today! Join us today, May 4th at 11a EST DM for zoom link
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WaveClub @waveclubseminar.bsky.social · 29/04/2026
We can't wait to hear from Dr. Zhe Sage Chen next week in our monthly online seminar series on traveling waves. Join us on May 4th at 11am ET! Please note the change in day and time.
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Earl K. Miller @earlkmiller.bsky.social · 14/04/2026
Have I mentioned that cognition is rhythmic? Planar, spiral, and concentric traveling waves distinguish behavioral states in human memory www.nature.com/articles/s41... #neuroscience
nature.com
Planar, spiral, and concentric traveling waves distinguish behavioral states in human memory - Nature Communications
How widespread brain areas flexibly interact to support behaviors is a fundamental challenge in neuroscience. Using direct brain recordings from humans, the authors show that spatiotemporally complex ...
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Laura Dugué @lauradugue.bsky.social · 09/04/2026
🚨New preprint🚨 Very excited about the last work led by Dugué Lab PhD student Yue Kong on TMS-induced #traveling_waves. @erc.europa.eu @upcite.bsky.social www.biorxiv.org/content/10.6...
biorxiv.org
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WaveClub @waveclubseminar.bsky.social · 06/04/2026
We can't wait to hear from Dr. Dominik Koller tomorrow in our monthly online seminar series on traveling waves. @dominikyuss.bsky.social Join us tomorrow, April 7th at 11a EST!
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Nicole Rust @nicolecrust.bsky.social · 25/03/2026
Save the bandwidth! On Friday, I’ll be posting updates from this event on Cognitive and Affective Neuromodulation at Brown, organized by @wael-asaad.bsky.social +. These are among the most formidable conditions 💔. But a lot is happening in this space! I’m looking forward to passing details along.
Schedule for the event.
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bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 19/03/2026
Structural and Functional Connectivity Predict the Effects of Direct Brain Stimulation on Memory www.biorxiv.org/content/10.64898/20…
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bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 18/03/2026
Transcranial magnetic stimulation to the dorsolateral prefrontal cortex modulates single-neuron activity in humans www.biorxiv.org/content/10.64898/20…
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bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 17/03/2026
Traveling waves support rhythmic attentional search www.biorxiv.org/content/10.64898/20…
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Melissa Franch, PhD @mfranch.bsky.social · 20/03/2026
I’m excited to share my newest work with @benhayden.bsky.social, and the work I’m most proud of to date, on characterizing semantic coding in single-neuron hippocampal activity in patients with autism during natural language comprehension! www.biorxiv.org/content/10.6...
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Nanthia Suthana @suthanalab.bsky.social · 17/03/2026
New lab paper! 🧠 Human hippocampal & MTL theta activity is linked to eye movements, but only during memory-guided navigation. Theta is also strongest during longer, more exploratory eye movements. plos.io/4dwJhR8 Huge congrats to Humza & team! 👏
journals.plos.org
Eye movements reflect memory-related theta activity in the human brain
Theta oscillations in the medial temporal lobe support memory, but how they relate to eye and body movements during human navigation is unclear. This study shows that theta power increases during sacc...
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Roozbeh Kiani @roozbehkiani.bsky.social · 05/03/2026
Can electrical microstimulation be used to steer cortical population activity on- and off-manifold? Our new preprint says yes — using data-driven control in macaque PFC. Joint work with @gbarzon.bsky.social, Anandita De, Isaac Moran, Conner Carnahan, and Luca Mazzucato.
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WaveClub @waveclubseminar.bsky.social · 02/03/2026
Join us for this exciting talk today at 11am EST! DM us for zoom link
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WaveClub @waveclubseminar.bsky.social · 25/02/2026
We can't wait to hear from Dr. Shella Keilholz next week in our monthly online seminar series on traveling waves. @shellakeilholz.bsky.social Join us on Monday, March 2nd at 11a ET! Please note the change in day and time
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Earl K. Miller @earlkmiller.bsky.social · 09/02/2026
Traveling waves. Your brain has them. There must be a reason. Cortical traveling waves in time and space: Physics, physiology, and psychology www.cell.com/neuron/abstr... #neuroscience
cell.com
Cortical traveling waves in time and space: Physics, physiology, and psychology
Cruddas et al. reviewed how core concepts from wave physics relate to cortical wave physiology and psychology. They examined how cortical waves emerge, how they facilitate coordinated, hierarchical, a...
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WaveClub @waveclubseminar.bsky.social · 02/02/2026
Join us for this exciting talk tomorrow at 1pm EST! DM us for zoom link
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WaveClub @waveclubseminar.bsky.social · 27/01/2026
We can't wait to learn about traveling waves during seizures from Dr. Mark Kramer next week in our monthly online seminar series on neural traveling waves. Join us next week on February 3rd at 1pm ET!
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Rodrigo Braga @rodbraga.bsky.social · 22/01/2026
My review with @caterinagratton.bsky.social is (apparently) open access for those who couldn't see it before: www.annualreviews.org/content/jour... We discuss individual differences in brain network organization and how to home in on and talk about commonalities in the face of such differences
annualreviews.org
Dense Phenotyping of Human Brain Network Organization Using Precision fMRI
The advent of noninvasive imaging methods like functional magnetic resonance imaging (fMRI) transformed cognitive neuroscience, providing insights into large-scale brain networks and their link to cog...
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Uma Mohan @umamohan.bsky.social · 05/01/2026
Join us for this exciting talk tomorrow at 9am EST (11pm KST) DM us for zoom link
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bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 11/12/2025
Systematic Errors in DC Offset Measurement and Mitigation at Neurostimulation Electrodes: Causes, Implications and Solutions www.biorxiv.org/content/10.64898/20…
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WaveClub @waveclubseminar.bsky.social · 02/12/2025
Unfortunately, today's talk at 11a EST by Dr. Mark Kramer is cancelled. Dr. Kramer will speak in Spring 2026. We will share the exact details as soon as they are confirmed. Thank you for your understanding. We look forward to sharing more valuable wave work with you in 2026!
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Ethan Solomon @esolomon.bsky.social · 24/11/2025
New paper from @stanfordpntlab.bsky.social in collaboration with @coreykeller.bsky.social, @neuro-engineer.bsky.social, Nick Trapp, and Aaron Boes at UIowa! We explored how TMS to the DLPFC changes neural activity in the subgenual anterior cingulate cortex, a key mood regulator. 1/
brainstimjrnl.com
DLPFC TMS suppresses high-frequency neural activity in the human sgACC
Repetitive transcranial magnetic stimulation (rTMS) to the dorsolateral prefrontal cortex (DLPFC) is increasingly used to treat major depressive disorder and has demonstrated durable improvements in d...
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WaveClub @waveclubseminar.bsky.social · 25/11/2025
We can't wait to learn about traveling waves during seizures from Dr. Mark Kramer next week in our monthly online seminar series on neural traveling waves. Join us next week on December 2nd at 11am-12p ET! Please note the earlier start time
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Laura Dugué @lauradugue.bsky.social · 19/11/2025
🚨New publication! I am extremely happy to share this new review article in elife on #Traveling_Waves! @erc.europa.eu @upcite.bsky.social elifesciences.org/articles/106...
elifesciences.org
Traveling waves across scales: Different mechanisms but same canonical computation?
The review proposes a novel mechanistic distinction between first- and second-order traveling waves that subserves a same canonical computation by ordering neuronal processing to impose a computationa...
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WaveClub @waveclubseminar.bsky.social · 04/11/2025
Join us for this exciting talk this evening at 5pm ET (9am AED) DM us for zoom link
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Uma Mohan @umamohan.bsky.social · 29/10/2025
Looking forward to hearing about complex wave patterns and mechanisms next week from Pulin Gong
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