Uma Mohan

@umamohan.bsky.social

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

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:

bioRxiv Neuroscience@biorxiv-neursci.bsky.social · 2w ago

Hippocampal-cingulate dynamics in the human brain link reinforcement-learning and memory https://www.biorxiv.org/content/10.64898/2026.09.10.750374v1

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.

bioRxiv Neuroscience@biorxiv-neursci.bsky.social · 3w ago

Human single-neuron recordings reveal population coding of attentional dynamics during naturalistic movie viewing https://www.biorxiv.org/content/10.64898/2026.09.08.748346v1

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...

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....

biorxiv.org

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.