Mastodawn

CA3 Community Town Hall Auburn, CA Nov. 15th, 2025 4PM PT Details and RSVP at www.mobilize.us/wethefighter... #fightingoligarchy #goldcountry #ca3 #ca03 #auburn

Guillaume Etter Nov 17, 2023

If you missed our poster at #sfn2023, here's the article: https://www.biorxiv.org/content/10.1101/2023.11.10.566641v1
_______
In a nutshell, we looked at how >30,000 #CA1 #hippocampus neurons coordinate their activity in relation to #space / #time both at the population and single neuron level. We also look at presynpatic (#CA3) and postsynaptic (#lateralseptum) neurons to evaluate hierarchical computations. Also tried my best at modelling a grid-to-time cell circuit based on real data to get insights in local integration

Show thread

Guillaume Etter Aug 31, 2023

But this does not explain why many of these manipulations decrease memory performance in vivo. We propose 3 main (testable) hypotheses building on previous theories to explain how memory could be altered in conditions where theta is disrupted:
1) hippocampal neurons could fail to integrate presynaptic (e.g. #CA3 and #entorhinal_cortex) activities at the right time

Fabrizio Musacchio Jul 24, 2023

There will be a talk by Peter Jonas (ISTAustria) on "#Synaptic mechanisms of #patterncompletion in the #hippocampal #CA3 region":

⏰ Thu July 27 at 4.15pm CEST
🌎 https://t.co/tlk4CorzwE
📍 University of #Tübingen, Hertie-Institut für klinische Hirnforschung (HIH), Host: Ulrike Hedrich

#neuroscience

TNC Neurocolloquium Thursdays 4.15pm CEST

The Neurocolloquium of the TübingenNeuroCampus will be happening hybrid, live in the Lecture Hall of the HNO in Tübingen and in Zoom: The next talk will be on Thursday, December 7, 2023 at 4.15 pm CET Speaker: Prof. Uri Hasson (Princeton) Title: "Deep language models as a cognitive model for natural language processing in the human brain" To receive the zoom details, please insert your email adress below.

Google Docs

Doug Huhn for Congress Jul 17, 2023

California leadership.

https://youtu.be/uj4kg4klnNE

#GavinNewsom #dougforca3 #ca3 #alwaysforward

California Leadership - Gavin Newsom

YouTube

6r1d Jun 16, 2021

An article "A Hippocampal Cognitive Prosthesis: Multi-Input, Multi-Output Nonlinear Modeling and VLSI Implementation" by Theodore W. Berger, et al.
(https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3395724/) tells about a brain implant with 16 analog-to-digital converters and 32 channels of output.

I've been discussing it with Prozion (https://github.com/prozion) before and he has a very good question.
"How does the implant function at all with that amount of channels?"

The previous explanation from "Computational Cognitive Neuroscience" about memory de-indexing sheds some light on that: the article is about the same brain regions: CA1, CA3 and DG.

#neuroscience #CA1 #CA3 #Hippocampus

A Hippocampal Cognitive Prosthesis: Multi-Input, Multi-Output Nonlinear Modeling and VLSI Implementation

This paper describes the development of a cognitive prosthesis designed to restore the ability to form new long-term memories typically lost after damage to the hippocampus. The animal model used is delayed nonmatch-to-sample (DNMS) behavior in the rat, ...