elduvelle_neuro, 14 days ago to random

Ok maybe this is the best cluster space ever
(also, from an implant that’s almost 4 months old!)
#Tetrodes #NeuroRat #Hippocampus #PlaceCells

elduvelle_neuro, 22 days ago to random

I bet you’ve never seen a bigger… cluster than my one 😁
(Well, technically, my #NeuroRat’s)
#Hippocampus #Tetrodes

elduvelle_neuro, 3 months ago to Neuroscience

#NeuroMethods question:

What is the smallest optimal distance between independent #Tetrodes in dorsal CA1 (so that you don’t record from the same neuron in adjacent tetrodes and also movement of one doesn’t influence the movement of others)?
Say, using 12.7 μm diameter wire?

#Neuroscience #Hippocampus #Electrophysiology

elduvelle, 10 months ago to random

I have to post this…

#Tetrode recordings #Hippocampus #NeuroRat #HybridDrive

elduvelle, 11 months ago to Neuroscience

#Hippocampus #Ripples - aren’t they the best? (with sound)
Notice how most of them show a positive deflection (positive Sharp-Wave) while the tetrode at the bottom right shows a negative SW, because it’s been moved past the CA1 cell layer!
(Data shown is from 16 #Tetrodes aimed at dorsal CA1, arranged in moveable bundles indicated by the colour)
#NeuroRat #Neuroscience

Video of live brain recordings from a rat, showing activity from 64 electrodes, 2 electrodes per row, supposedly in dorsal hippocampus. The signals are unfiltered and unreferenced. The sound corresponds to the highlighted channel which seems to be very close to the CA1 pyramidal cell layer. Bursty- like sounds indicate ripples, during which many cells are reactivated and likely correspond to the rat is recalling or consolidating specific memories. The ripples co-occur with a sharp-wave, which have a positive polarity above the cell layer and a negative polarity below it.

elduvelle, 11 months ago to Neuroscience

#Neuroscience #Ephys question: anyone recognize these signals? The wavy thing? It’s supposedly in rat cortex (above hippocampus), when the rat is immobile, possibly sleepy. Recorded with #Tetrodes.
The x-axis scale for each of the two columns is 1s.
#Electrophysiology

elduvelle, 1 year ago to random

What tags are you all following?
Here are mine but I’d like to add some more, particularly science-related:

#FediTips #Hippocampus #PlaceCells #Tetrodes #NatureIsBeautiful (yes… I’m the only one using it for now) #NeuroPaper #NeuroPaperThread #Neuroscience

elduvelle, 1 year ago to Neuroscience

#SpikeSorting : where would be the best place (or handle / hashtag) to ask questions about Phy? 🙏​
And if you use it, can you let me know, maybe we can help each other?
(This Phy: https://phy.readthedocs.io/en/latest/)
*Edit: added these hashtags: #Electrophysiology #Neuroscience #Tetrodes *