Rebekah Evans
@cellularscale.bsky.social
Assistant Professor Georgetown University Department of Neuroscience
Posters H16 and K5
November 16, 2025 at 3:55 AM
Posters H16 and K5
Reposted by Rebekah Evans
But it took weeks or months of confusion before some had their (lawless) RIF notices revoked.
As was widely reported, several NIH scientists, including a major-award-winning Parkinson’s researcher, weren't fully de-RIF’d until @durbin.senate.gov caught out RFK Jr at a Senate hearing about them.
As was widely reported, several NIH scientists, including a major-award-winning Parkinson’s researcher, weren't fully de-RIF’d until @durbin.senate.gov caught out RFK Jr at a Senate hearing about them.
RFK Jr. told Congress no working scientists were fired, but these top NIH brain scientists are still facing job cuts
"As far as I know, we have not fired any working scientists," RFK Jr. had told Congress.
www.cbsnews.com
October 11, 2025 at 11:10 PM
But it took weeks or months of confusion before some had their (lawless) RIF notices revoked.
As was widely reported, several NIH scientists, including a major-award-winning Parkinson’s researcher, weren't fully de-RIF’d until @durbin.senate.gov caught out RFK Jr at a Senate hearing about them.
As was widely reported, several NIH scientists, including a major-award-winning Parkinson’s researcher, weren't fully de-RIF’d until @durbin.senate.gov caught out RFK Jr at a Senate hearing about them.
Wow! Fascinating work, congratulations!
October 11, 2025 at 11:10 AM
Wow! Fascinating work, congratulations!
One fascinating thing that we found while revising this paper was that the dopaminergic neuron of the SNc project to the PPN and stimulating their axons locally in the PPN evokes reward-like behaviors!
August 21, 2025 at 2:51 PM
One fascinating thing that we found while revising this paper was that the dopaminergic neuron of the SNc project to the PPN and stimulating their axons locally in the PPN evokes reward-like behaviors!
The nigral input was really really strong to one particular cell type though, and we are planning to follow up this paper with a deeper dissection of those specific cells.
August 21, 2025 at 2:42 PM
The nigral input was really really strong to one particular cell type though, and we are planning to follow up this paper with a deeper dissection of those specific cells.
We found that the pallidal input only connected to 2 out of the 6 cell types, but the nigral input went to essentially every single PPN cell!
August 21, 2025 at 2:41 PM
We found that the pallidal input only connected to 2 out of the 6 cell types, but the nigral input went to essentially every single PPN cell!
Using electrophysiology and optogenetics, we tested the connections of each inhibitory input to each of 6 different PPN cell types. This was a huge amount of work conducted by a recently graduated PhD student, Dr. Michel Fallah.
August 21, 2025 at 2:39 PM
Using electrophysiology and optogenetics, we tested the connections of each inhibitory input to each of 6 different PPN cell types. This was a huge amount of work conducted by a recently graduated PhD student, Dr. Michel Fallah.
From previous work, we knew that the PPN has many different cell types that have distinct functions, so we hypothesized that the two inhibitory inputs would be inhibiting different cell types.
August 21, 2025 at 2:37 PM
From previous work, we knew that the PPN has many different cell types that have distinct functions, so we hypothesized that the two inhibitory inputs would be inhibiting different cell types.
In addition, one inhibitory connection (pallidal) reduces movement, while the other (nigral) does not change locomotion.
August 21, 2025 at 2:35 PM
In addition, one inhibitory connection (pallidal) reduces movement, while the other (nigral) does not change locomotion.