Blake Russell
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neurorussell.bsky.social
Blake Russell
@neurorussell.bsky.social
PhD student in Lak Lab & lecturer @ the University of Oxford. Using multiphoton optogenetics and Neuropixels simultaneously to study how perceptual activity propagates through the brain.

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This can have a significant effect on how injected activity is propagated to the local network.

We find that a combination of longer inter-stimulus intervals and shorter imaging doses can ameleorate the observed response desensitization across the field of view (4/5).
October 15, 2025 at 4:47 PM
This is a longstanding problem in the field, and has been addressed in previous studies by reducing the dwell time per cell and power on sample of the imaging laser.

However, we find that even imaging conditions that are subthreshold for evoking spikes can accelerate opsin desensitization (3/5).
October 15, 2025 at 4:47 PM