Andrew Leifer
@andrewleifer.bsky.social
Assistant Professor of Physics & Neuroscience at Princeton University. Studying how C. elegans nervous system processes information to generate actions.
Reposted by Andrew Leifer
Big picture: community structure of C. elegans connectome and an "effectome" derived from insane stimulation experiments (see shorturl.at/vYEDZ) are poorly aligned (except for pharynx, oddly).
Wires ≠ propagation paths.
A truly interesting wrinkle in the tapestry of structure-function papers.
2/3
Wires ≠ propagation paths.
A truly interesting wrinkle in the tapestry of structure-function papers.
2/3
August 12, 2025 at 2:11 PM
Big picture: community structure of C. elegans connectome and an "effectome" derived from insane stimulation experiments (see shorturl.at/vYEDZ) are poorly aligned (except for pharynx, oddly).
Wires ≠ propagation paths.
A truly interesting wrinkle in the tapestry of structure-function papers.
2/3
Wires ≠ propagation paths.
A truly interesting wrinkle in the tapestry of structure-function papers.
2/3
Reposted by Andrew Leifer
So stoked to see this in press!
Diverging network architecture of the C. elegans connectome and signaling network
journal: journals.aps.org/prxlife/acce...
preprint: arxiv.org/abs/2412.14498
1/3
Diverging network architecture of the C. elegans connectome and signaling network
journal: journals.aps.org/prxlife/acce...
preprint: arxiv.org/abs/2412.14498
1/3
PRX Life - Accepted Paper: Diverging network architecture of the C. elegans connectome and signaling network
journals.aps.org
August 12, 2025 at 2:11 PM
So stoked to see this in press!
Diverging network architecture of the C. elegans connectome and signaling network
journal: journals.aps.org/prxlife/acce...
preprint: arxiv.org/abs/2412.14498
1/3
Diverging network architecture of the C. elegans connectome and signaling network
journal: journals.aps.org/prxlife/acce...
preprint: arxiv.org/abs/2412.14498
1/3
Join me tomorrow June 11 2-3 ET for an @apsphysics.bsky.social webinar with co-authors Andrea Liu and Sidney Nagel about how scientists can speak up for the rights of scientists, the independence of our institutions and the rule of law. Register here: apsphysics.zoom.us/meeting/regi...
June 10, 2025 at 4:51 PM
Join me tomorrow June 11 2-3 ET for an @apsphysics.bsky.social webinar with co-authors Andrea Liu and Sidney Nagel about how scientists can speak up for the rights of scientists, the independence of our institutions and the rule of law. Register here: apsphysics.zoom.us/meeting/regi...
Reposted by Andrew Leifer
Panelists: Andrew Leifer (@andrewleifer.bsky.social), Andrea Liu, and Sid Nagel.
Moderator: Chris Lynn (@chriswlynn.bsky.social).
Moderator: Chris Lynn (@chriswlynn.bsky.social).
June 2, 2025 at 5:43 PM
Panelists: Andrew Leifer (@andrewleifer.bsky.social), Andrea Liu, and Sid Nagel.
Moderator: Chris Lynn (@chriswlynn.bsky.social).
Moderator: Chris Lynn (@chriswlynn.bsky.social).
Reposted by Andrew Leifer
Science is built on public trust, federal funding, and academic freedom. All of these are currently being eroded, but what can we do?
Join us for an online panel on "Being a Voice for Science" (June 11, 2-3pm ET).
Info and registration: engage.aps.org/dbio/resourc...
Join us for an online panel on "Being a Voice for Science" (June 11, 2-3pm ET).
Info and registration: engage.aps.org/dbio/resourc...
Resources - Unit - DBIO
engage.aps.org
June 2, 2025 at 5:43 PM
Science is built on public trust, federal funding, and academic freedom. All of these are currently being eroded, but what can we do?
Join us for an online panel on "Being a Voice for Science" (June 11, 2-3pm ET).
Info and registration: engage.aps.org/dbio/resourc...
Join us for an online panel on "Being a Voice for Science" (June 11, 2-3pm ET).
Info and registration: engage.aps.org/dbio/resourc...
New op-ed in @nature.com: The Trump administration's assault on freedoms and the rule of law is an existential threat to US science. We urge scientists to speak out in defense of freedoms, not just funding. With Andrea Liu @upenn.edu and Sidney Nagel of UChicago! www.nature.com/articles/d41...
US researchers must stand up to protect freedoms, not just funding
Curtailment of freedoms and disregard for the rule of law in the United States is destroying the ability of science to serve the nation’s, and the world’s, interests. Researchers can take action.
www.nature.com
May 13, 2025 at 10:41 AM
New op-ed in @nature.com: The Trump administration's assault on freedoms and the rule of law is an existential threat to US science. We urge scientists to speak out in defense of freedoms, not just funding. With Andrea Liu @upenn.edu and Sidney Nagel of UChicago! www.nature.com/articles/d41...
Reposted by Andrew Leifer
Those trying to understand the tariffs as economic policy are dangerously naive.
No, the tariffs are a tool to collapse our democracy. A means to compel loyalty from every business that will need to petition Trump for relief.
1/ A 🧵 to explain his plan and how we fight back.
No, the tariffs are a tool to collapse our democracy. A means to compel loyalty from every business that will need to petition Trump for relief.
1/ A 🧵 to explain his plan and how we fight back.
April 3, 2025 at 3:29 AM
Those trying to understand the tariffs as economic policy are dangerously naive.
No, the tariffs are a tool to collapse our democracy. A means to compel loyalty from every business that will need to petition Trump for relief.
1/ A 🧵 to explain his plan and how we fight back.
No, the tariffs are a tool to collapse our democracy. A means to compel loyalty from every business that will need to petition Trump for relief.
1/ A 🧵 to explain his plan and how we fight back.
Reposted by Andrew Leifer
I know it's crazy timing, nuts but Michigan Biophysics is hiring on the tenure track! App deadline is May 15. Join our interdisciplinary community. careers.umich.edu/job_detail/2...
ASST PROFESSOR | U-M Careers
careers.umich.edu
April 1, 2025 at 12:21 AM
I know it's crazy timing, nuts but Michigan Biophysics is hiring on the tenure track! App deadline is May 15. Join our interdisciplinary community. careers.umich.edu/job_detail/2...
Professional societies have an important role to play in pushing back against encroaching authoritarianism. My colleagues and I are lobbying for tougher stances from our professional societies and you can too. andrewleifer.substack.com/p/profession...
Professional societies can speak out against encroaching authoritarianism
A first post and a first step.
andrewleifer.substack.com
March 25, 2025 at 7:34 PM
Professional societies have an important role to play in pushing back against encroaching authoritarianism. My colleagues and I are lobbying for tougher stances from our professional societies and you can too. andrewleifer.substack.com/p/profession...
"We are passionate about science and its benefits to society, but we fear more what will happen if we do not help defend everyone’s fundamental rights." Op-ed I co-wrote w/ @samwang.bsky.social @jpillowtime.bsky.social @ilanawitten.bsky.social & David Tank www.dailyprincetonian.com/article/2025...
To stop intimidation, Eisgruber needs your help
When targeting one institution is a bald attempt to divide and conquer, as is the case with Columbia, it is essential for a coalition or group of institutions and individuals to stand up together.&nbs...
www.dailyprincetonian.com
March 25, 2025 at 7:31 PM
"We are passionate about science and its benefits to society, but we fear more what will happen if we do not help defend everyone’s fundamental rights." Op-ed I co-wrote w/ @samwang.bsky.social @jpillowtime.bsky.social @ilanawitten.bsky.social & David Tank www.dailyprincetonian.com/article/2025...
Reposted by Andrew Leifer
How do worms navigate based on learned experience? @andrewleifer.bsky.social @jpillowtime.bsky.social &co reveal flexible behavioral strategies & distributed neural computations underlying learning-dependent odor #navigation in #Celegans @plosbiology.org 🧪 plos.io/4bYZs7c
March 24, 2025 at 5:31 PM
How do worms navigate based on learned experience? @andrewleifer.bsky.social @jpillowtime.bsky.social &co reveal flexible behavioral strategies & distributed neural computations underlying learning-dependent odor #navigation in #Celegans @plosbiology.org 🧪 plos.io/4bYZs7c
Wow! Check out this thoughtful and mindbending preprint from Jacob Bien and colleagues describing their experience teaching non-technical MBA students data science via Github Copilot: "Generative AI for Data Science 101: Coding Without Learning To Code" arxiv.org/abs/2401.17647
March 1, 2024 at 10:06 PM
Wow! Check out this thoughtful and mindbending preprint from Jacob Bien and colleagues describing their experience teaching non-technical MBA students data science via Github Copilot: "Generative AI for Data Science 101: Coding Without Learning To Code" arxiv.org/abs/2401.17647
Reposted by Andrew Leifer
Plugging invisible gaps in the synaptic connectome
By @elissawelle.bsky.social
www.thetransmitter.org/connectome/p...
By @elissawelle.bsky.social
www.thetransmitter.org/connectome/p...
Plugging invisible gaps in the synaptic connectome
Two new maps of the roundworm nervous system detail how neurons communicate with short proteins called neuropeptides outside synapses.
www.thetransmitter.org
December 6, 2023 at 3:30 PM
Plugging invisible gaps in the synaptic connectome
By @elissawelle.bsky.social
www.thetransmitter.org/connectome/p...
By @elissawelle.bsky.social
www.thetransmitter.org/connectome/p...
New single-figure paper out in Current Biology: Light evokes stereotyped global brain dynamics in C. elegans by first author Wayan Gauthey. doi.org/10.1016/j.cu...
January 8, 2024 at 5:08 PM
New single-figure paper out in Current Biology: Light evokes stereotyped global brain dynamics in C. elegans by first author Wayan Gauthey. doi.org/10.1016/j.cu...
Reposted by Andrew Leifer
One more week to apply for our joint faculty position in Princeton Neuroscience Institute and Computer Science Dept, in neuroAI and intelligent systems, broadly construed. Do you fit? Yes. But feel free to contact me with q's. puwebp.princeton.edu/AcadHire/app...
puwebp.princeton.edu
November 8, 2023 at 8:21 PM
One more week to apply for our joint faculty position in Princeton Neuroscience Institute and Computer Science Dept, in neuroAI and intelligent systems, broadly construed. Do you fit? Yes. But feel free to contact me with q's. puwebp.princeton.edu/AcadHire/app...