Marta Silva
@martamasilva.bsky.social
Postdoc at Columbia University. Researching the neural mechanisms behind memory formation using electrophysiology.
(She/Her)
(She/Her)
Pinned
Marta Silva
@martamasilva.bsky.social
· Jul 1
Movie-watching evokes ripple-like activity within events and at event boundaries
Nature Communications - The neural processes involved in memory formation for realistic experiences remain poorly understood. Here, the authors found that ripple-like activity in the human...
rdcu.be
🧠 Paper out!
We investigated how hippocampal and cortical ripples support memory during movie watching. We found that:
🎬 Hippocampal ripples mark event boundaries
🧩 Cortical ripples predict later recall
Ripples may help transform real-life experiences into lasting memories!
rdcu.be/eui9l
We investigated how hippocampal and cortical ripples support memory during movie watching. We found that:
🎬 Hippocampal ripples mark event boundaries
🧩 Cortical ripples predict later recall
Ripples may help transform real-life experiences into lasting memories!
rdcu.be/eui9l
🧠 Paper out!
We investigated how hippocampal and cortical ripples support memory during movie watching. We found that:
🎬 Hippocampal ripples mark event boundaries
🧩 Cortical ripples predict later recall
Ripples may help transform real-life experiences into lasting memories!
rdcu.be/eui9l
We investigated how hippocampal and cortical ripples support memory during movie watching. We found that:
🎬 Hippocampal ripples mark event boundaries
🧩 Cortical ripples predict later recall
Ripples may help transform real-life experiences into lasting memories!
rdcu.be/eui9l
Movie-watching evokes ripple-like activity within events and at event boundaries
Nature Communications - The neural processes involved in memory formation for realistic experiences remain poorly understood. Here, the authors found that ripple-like activity in the human...
rdcu.be
July 1, 2025 at 1:26 PM
🧠 Paper out!
We investigated how hippocampal and cortical ripples support memory during movie watching. We found that:
🎬 Hippocampal ripples mark event boundaries
🧩 Cortical ripples predict later recall
Ripples may help transform real-life experiences into lasting memories!
rdcu.be/eui9l
We investigated how hippocampal and cortical ripples support memory during movie watching. We found that:
🎬 Hippocampal ripples mark event boundaries
🧩 Cortical ripples predict later recall
Ripples may help transform real-life experiences into lasting memories!
rdcu.be/eui9l
Reposted by Marta Silva
Hi Bluesky! First post here. Kicking things off with a new preprint.
🧠 Using human iEEG + pharmacology, we asked: is hippocampal theta required for retrieval?
Turns out it’s not. Instead, it may reflect a reinstated encoding mode.
Thread below.
www.biorxiv.org/content/10.1...
🧠 Using human iEEG + pharmacology, we asked: is hippocampal theta required for retrieval?
Turns out it’s not. Instead, it may reflect a reinstated encoding mode.
Thread below.
www.biorxiv.org/content/10.1...
Cholinergic blockade reveals role for human hippocampal theta in encoding but not retrieval
Cholinergic dysfunction is a hallmark of Alzheimer's disease and other memory disorders. Yet, the neurophysiological mechanisms linking cholinergic signaling to memory remain poorly understood. In thi...
www.biorxiv.org
May 14, 2025 at 2:55 PM
Hi Bluesky! First post here. Kicking things off with a new preprint.
🧠 Using human iEEG + pharmacology, we asked: is hippocampal theta required for retrieval?
Turns out it’s not. Instead, it may reflect a reinstated encoding mode.
Thread below.
www.biorxiv.org/content/10.1...
🧠 Using human iEEG + pharmacology, we asked: is hippocampal theta required for retrieval?
Turns out it’s not. Instead, it may reflect a reinstated encoding mode.
Thread below.
www.biorxiv.org/content/10.1...
Reposted by Marta Silva
New manuscript published! ✍️👀
Concept neurons evolve from index neurons through overlapping memories.
Check it out here: www.cell.com/trends/cogni... 1/15
Concept neurons evolve from index neurons through overlapping memories.
Check it out here: www.cell.com/trends/cogni... 1/15
On the origin of memory neurons in the human hippocampus
The hippocampus is essential for episodic memory, yet its coding mechanism remains
debated. In humans, two main theories have been proposed: one suggests that concept
neurons represent specific elemen...
www.cell.com
March 5, 2025 at 5:43 PM
New manuscript published! ✍️👀
Concept neurons evolve from index neurons through overlapping memories.
Check it out here: www.cell.com/trends/cogni... 1/15
Concept neurons evolve from index neurons through overlapping memories.
Check it out here: www.cell.com/trends/cogni... 1/15
Reposted by Marta Silva
After years of work designing and running this study with a multi-University team, we have our first preprint 🎉🎉 showing how a memorization technique builds neural representations through conjunctive representations! See thread and preprint link ⬇️
New preprint with Akshay Manglik, Nick Dutra, Hannah Tarder-Stoll, @tchamberlain.bsky.social, Robert Ajemian, @qiongzhang.bsky.social, @ptoncompmemlab.bsky.social, @chrisbaldassano.bsky.social looking at conjunctive representation during Method of Loci! www.biorxiv.org/content/10.1...
Binding items to contexts through conjunctive neural representations with the Method of Loci
Schematic prior knowledge can provide a powerful scaffold for episodic memories, yet the neural mechanisms underlying this scaffolding process are still poorly understood. A crucial step of the scaffo...
www.biorxiv.org
January 27, 2025 at 5:18 PM
After years of work designing and running this study with a multi-University team, we have our first preprint 🎉🎉 showing how a memorization technique builds neural representations through conjunctive representations! See thread and preprint link ⬇️