Computational neuroscientist @princetonneuro.bsky.social deciphering natural and advancing artificial intelligence.https://bsky.app/profile/engeltatiana.bsky.socialhttps://bsky.app/profile/engeltatiana.bsky.social/post/3mthjq4hgx22aDifficult decisions take time, but can we keep all accumulated evidence in mind long enough to make better choices? We find that working-memory limitations constrain decision-making, and these effects are modulated by dopamine. https://biorxiv.org/content/10.64898/2026.08.12.744547v1 bioRxiv out with Cina Aghamohammadi et al.19 Aug 2026 20:05 +0000at://did:plc:rngufswleptbcwkphw7limaa/app.bsky.feed.post/3mthjq4hgx22ahttps://bsky.app/profile/engeltatiana.bsky.social/post/3m77odlihic2lThank you for having me on BrainInspired, Paul @braininspired.bsky.social! It was such an honor to be on my favorite show—a rare place where we can leisurely talk about manifolds, latent circuits, power laws, and other esoteric ideas, and still be taken seriously in knowing they are all real. [contains quote post or other embedded content]05 Dec 2025 04:42 +0000at://did:plc:rngufswleptbcwkphw7limaa/app.bsky.feed.post/3m77odlihic2lhttps://bsky.app/profile/engeltatiana.bsky.social/post/3m3xlpktuu22dOur work with @pawa-pawa.bsky.social is out in Nature Machine Intelligence! The choice of activation function affects the representations, dynamics, and circuit solutions that emerge in RNNs trained on cognitive tasks. Activation matters! https://www.nature.com/articles/s42256-025-01127-2 [contains quote post or other embedded content]24 Oct 2025 19:18 +0000at://did:plc:rngufswleptbcwkphw7limaa/app.bsky.feed.post/3m3xlpktuu22dhttps://bsky.app/profile/engeltatiana.bsky.social/post/3m2xhq6ysmk2dA study led by Cina Aghamohammadi is now out in ‪@natcomms.nature.com‬! We developed a mathematical framework for partitioning spiking variability, which revealed that spiking irregularity is nearly invariant for each neuron and decreases along the cortical hierarchy. https://www.nature.com/articles/s41467-025-63821-412 Oct 2025 00:42 +0000at://did:plc:rngufswleptbcwkphw7limaa/app.bsky.feed.post/3m2xhq6ysmk2dhttps://bsky.app/profile/engeltatiana.bsky.social/post/3lxuitdtnys27New work with @shiyanliang.bsky.social‬, @roxana-zeraati.bsky.social, @intlbrainlab.bsky.social, Anna Levina. We uncover the principles that organize single-neuron timescales across the entire brain, unifying regional specialization with universal brain-wide dynamics: https://www.biorxiv.org/content/10.1101/2025.08.30.673281v1 [contains quote post or other embedded content]02 Sep 2025 16:08 +0000at://did:plc:rngufswleptbcwkphw7limaa/app.bsky.feed.post/3lxuitdtnys27https://bsky.app/profile/engeltatiana.bsky.social/post/3lshohj7iwk2kOut today in @nature.com: we show that individual neurons have diverse tuning to a decision variable computed by the entire population, revealing a unifying geometric principle for the encoding of sensory and dynamic cognitive variables. https://www.nature.com/articles/s41586-025-09199-125 Jun 2025 22:38 +0000at://did:plc:rngufswleptbcwkphw7limaa/app.bsky.feed.post/3lshohj7iwk2khttps://bsky.app/profile/engeltatiana.bsky.social/post/3lhyrxby6ic2sOur new paper with @chrismlangdon is just out in @natureneuro.bsky.social! We show that high-dimensional RNNs use low-dimensional circuit mechanisms for cognitive tasks and identify a latent inhibitory mechanism for context-dependent decisions in PFC data. https://www.nature.com/articles/s41593-025-01869-7 [contains quote post or other embedded content]12 Feb 2025 18:19 +0000at://did:plc:rngufswleptbcwkphw7limaa/app.bsky.feed.post/3lhyrxby6ic2s