Mathew Summers
@summersathome.bsky.social
Thalamic hodologist, formerly retina surfer. Scientist @AllenInstitute
Sensitivity is one thing, but do you think a single light sensitive ion channel will ever have sufficient dynamic range for natural-ish vision? After all, the retina uses tiered adaptation systems even for just photopic vision.
www.nature.com/articles/nat...
www.nature.com/articles/nat...
Light adaptation in cone vision involves switching between receptor and post-receptor sites - Nature
Humans can see in conditions from darkened cinemas to bright sun because cone photoreceptors adapt their mean output to the current light conditions; here, a second site of adaptation is identified, i...
www.nature.com
September 18, 2025 at 4:01 PM
Sensitivity is one thing, but do you think a single light sensitive ion channel will ever have sufficient dynamic range for natural-ish vision? After all, the retina uses tiered adaptation systems even for just photopic vision.
www.nature.com/articles/nat...
www.nature.com/articles/nat...
Cool stuff! I had a similar "headlamp test" when troubleshooting retina recordings.
September 18, 2025 at 4:00 PM
Cool stuff! I had a similar "headlamp test" when troubleshooting retina recordings.
Reposted by Mathew Summers
Part 2 - Slashing budgets of NIH, NASA, NSF (and NOAA, DOE, EPA and ...) undermines key employers in communities all across the US that form hubs of research and technology development. For NIH alone, we estimate $46B in economic loss and 202K lost jobs.
scienceimpacts.org/fy26
scienceimpacts.org/fy26
SCIMaP - Impacts of Federal Cuts to Science and Medical Research
View Projected Impact of the FY2026 Budget Cuts to the NIH
scienceimpacts.org
June 30, 2025 at 1:46 PM
Part 2 - Slashing budgets of NIH, NASA, NSF (and NOAA, DOE, EPA and ...) undermines key employers in communities all across the US that form hubs of research and technology development. For NIH alone, we estimate $46B in economic loss and 202K lost jobs.
scienceimpacts.org/fy26
scienceimpacts.org/fy26