iiinova — where your digital self keeps evolving

Tamara Gedankien

@gedankien.bsky.social

65 followers 170 following 8 posts

Postdoc @Columbia.

Posts Replies Media

Reposted by Tamara Gedankien

Tim Guth @timaguth.bsky.social · 11/08/2025

Excited to share our new paper on theta-phase locking of single neurons during human spatial memory: www.nature.com/articles/s41... With @lukaskunz.bsky.social, Joshua Jacobs, and our colleagues from the University of Freiburg

Neuronal theta-phase locking increased during periods of elevated theta power, when aperiodic activity exhibited steeper slopes, and when clear theta oscillations were detected. Theta-phase locking was similarly strong during the successful and unsuccessful encoding and retrieval of memories. Some neurons changed their preferred theta phases between encoding and retrieval.

13411

Reposted by Tamara Gedankien

Luca Kolibius @lucakolibius.bsky.social · 02/07/2025

Despite recent criticism from Quiroga to our claim that Concept Neurons emerge from Conjunctive Coding Neurons we claim: “And yet, the hippocampus codes conjunctively!”. We hope it sparks a smile (and maybe a few debates). Read here: tinyurl.com/3ycv3vj2

195

Reposted by Tamara Gedankien

Marta Silva @martamasilva.bsky.social · 01/07/2025

🧠 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

rdcu.be

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...

815968

Reposted by Tamara Gedankien

bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 13/05/2025

Cholinergic blockade reveals role for human hippocampal theta in encoding but not retrieval www.biorxiv.org/content/10.1101/202…

023

Tamara Gedankien @gedankien.bsky.social · 14/05/2025

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...

biorxiv.org

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...

13212