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Katrina Choe

@katrinachoe.bsky.social

290 followers 370 following 26 posts

Canada Research Chair (Tier 2) in Neurobiology of Social Behaviour. Assistant prof at McMaster University, Hamilton, Ontario, Canada. Always thinking about oxytocin. Choelab.ca

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Katrina Choe @katrinachoe.bsky.social · May 15

Thrilled to share that our paper is published! With this study, we reveal calcium dynamics of PVN oxytocin neurons and astrocytes in mice during social investigation and looming shadow threat, simultaneously imaged in vivo using two-colour fiber photometry. 🐭 🧠 🟢 🔴 www.eneuro.org/content/12/5...

Reposted by Katrina Choe

SfN Journals @sfnjournals.bsky.social · Jun 27

#eNeuro: Using fiber photometry in mice, <a href="https://bsky.app/profile/did:plc:65zbfh7dgq3vhejo2dcmbnod" class="hover:underline text-blue-600 dark:text-sky-400" target="_blank" rel="noopener">@katycelina.bsky.social‬, Rychlik, and <a href="https://bsky.app/profile/did:plc:p3muyokkk3p2od65px7nywwc" class="hover:underline text-blue-600 dark:text-sky-400" target="_blank" rel="noopener">@katrinachoe.bsky.social‬ show oxytocin neurons and astrocytes respond to social and stress cues differently depending on the situation and sex of the animal. <a href="https://bsky.app/profile/did:plc:4z4fexwchs45prh4rxionaoi" class="hover:underline text-blue-600 dark:text-sky-400" target="_blank" rel="noopener">@mcmastermedia.bsky.social‬
vist.ly/3n7y6tc

Katrina Choe @katrinachoe.bsky.social · Jun 26

Awesome news -congrats Jibran!

Reposted by Katrina Choe

Ciarán Murphy-Royal @murphyroyallab.org · Jun 13

Call for an Assistant / Associate Prof. just opened at the @crchum.bsky.social in the Neuroscience Axis !

www.chumontreal.qc.ca/en/emplois/a...

Assistant or associate professor-researcher in Neuroscience related to neurological disorders and/or neural regeneration and precision health

Description The Neuroscience Research Axis of the CRCHUM and the Department of Neuroscience of the UdeM are inviting applications for a position of assistant or associate professor-researcher in neur...

www.chumontreal.qc.ca

Katrina Choe @katrinachoe.bsky.social · Jun 13

I am delighted to share a new review article from Aishwarya Patwardhan and me, titled "The Social Salience Network Hypothesis of Autism: Disrupted Network Activity, Oxytocin Signaling, and Implications for Social Symptoms" published in Progress in Neurobiology! doi.org/10.1016/j.pn...

Katrina Choe @katrinachoe.bsky.social · May 16

Thanks Maithe!

Katrina Choe @katrinachoe.bsky.social · May 15

Thanks Ciaran! See you at CAN

Katrina Choe @katrinachoe.bsky.social · May 15

Thanks Argel!

Katrina Choe @katrinachoe.bsky.social · May 15

Thanks Stephen

Katrina Choe @katrinachoe.bsky.social · May 15

Thanks Caroline 🥰

Katrina Choe @katrinachoe.bsky.social · May 15

Finally, thanks to Andrea Lawson from @mcmastermedia.bsky.social for this nice writeup on our study! brighterworld.mcmaster.ca/articles/bra...

Katrina Choe @katrinachoe.bsky.social · May 15

This one is especially meaningful - the first paper from our lab led by the first PhD student @katycelina.bsky.social and the first MSc student Joshua Rychlik. So proud of their hard work, and thankful for everyone who helped along the way including our funding sources ❤️

Katrina Choe @katrinachoe.bsky.social · May 15

Thrilled to share that our paper is published! With this study, we reveal calcium dynamics of PVN oxytocin neurons and astrocytes in mice during social investigation and looming shadow threat, simultaneously imaged in vivo using two-colour fiber photometry. 🐭 🧠 🟢 🔴 www.eneuro.org/content/12/5...

Katrina Choe @katrinachoe.bsky.social · May 3

Jam-packed past few weeks celebrating @katycelina.bsky.social’s paper acceptance, a new paper submission, hosting Dr. Toru Takumi, and attending #SOBP2025 in Toronto with @neuroash.bsky.social @siyaoneuro.bsky.social and #SONA2025 at @westernu.bsky.social with (almost) the whole lab crew! 🥳🍾🤩

Katrina Choe @katrinachoe.bsky.social · May 3

So proud of you! 👏🥰

Siyao Li @siyaoneuro.bsky.social · May 3

So excited to have received an Outstanding Research Poster Award yesterday at the 43rd Southern Ontario Neuroscience Association (SONA) meeting! Thank you SONA organizers for the recognition! And huge appreciation to my amazing PI Dr. Katrina Choe and the Choe lab for their incredible support!

Katrina Choe @katrinachoe.bsky.social · Apr 26

It was so nice to catch up! Your kitty isn’t the only one drooling over the mountain of crabs 🤤🏔️ 🦀

Reposted by Katrina Choe

Jesper Sjöström @pjsjostrom.bsky.social · Apr 14

🧪 The Sjöström Lab in Montreal is looking for a postdoc! We study cortical circuits, synaptic plasticity, and NMDAR signalling using custom 2-photon microscopy and optogenetics. We seek candidates with strong patch-clamp and/or 2-photon imaging expertise, and a relevant publication track record.

We are looking for an outstanding postdoctoral researcher to join our team at McGill University. The Sjöström lab studies neocortical circuits, with a focus on synaptic plasticity, NMDA receptor signaling, 2-photon optogenetics, and advanced 2-photon imaging. We are particularly interested in candidates with strong expertise in whole-cell patch-clamp electrophysiology and/or 2-photon imaging, and a solid track record of relevant publications.
Applicants should be experienced with whole-cell recordings and/or cutting-edge imaging approaches. Responsibilities will include performing experiments, analyzing and presenting data locally and internationally, writing manuscripts, and occasionally mentoring junior lab members.
Our lab is based at the Research Institute of the McGill University Health Centre, in vibrant, multicultural Montreal—a city that offers exceptional quality of life. McGill and its neighbouring universities form one of the most dynamic neuroscience communities in the world.
For examples of our current directions, see:
• Chou et al The Innovation 2025, www.cell.com/the-innovation/fulltext/S2666-6758(24)00173-5
• Wong et al Neuron 2024, www.cell.com/neuron/fulltext/S0896-6273(23)00767-5
The position is fully funded with a competitive salary. Candidates are also expected to apply for external funding, for which we provide strong support. Opportunities are available for both Canadian and international applicants.
To apply, please send a Letter of Intent, CV, brief research statement, and contact information for three referees to Dr. Jesper Sjöström (jesper.sjostrom@mcgill.ca). In the subject line, include "Postdoc" followed by your name.
Application deadline: July 31, 2025.
Website: http://plasticity.muhc.mcgill.ca
McGill University is committed to diversity and equity in employment.

Reposted by Katrina Choe

Louis-Eric Trudeau @louistrudeau.bsky.social · Apr 24

I have an opening in my lab for a postdoctoral fellow to work on projects that relate to the mechanisms of neurotransmitter release by dopamine neurons and/or on how inflammatory signals infuence the functionning of these neurons. Please share.

Katrina Choe @katrinachoe.bsky.social · Apr 25

Fun times at #SOBP2025 with @gisellavetere.bsky.social @franklandlab.bsky.social Sheena Josselyn, Satoshi Kida, and Jessie Muir

Reposted by Katrina Choe

Kevin Mitchell @wiringthebrain.bsky.social · Apr 24

A hypothalamic circuit underlying the dynamic control of social homeostasis rdcu.be/ei6To - the neuroscience of loneliness... (in mice) 🐭😥

A hypothalamic circuit underlying the dynamic control of social homeostasis

Nature - New data on brain-wide circuits centred around two interconnected hypothalamic neuron populations provide significant mechanistic insights into the emergence of social need during social...

Katrina Choe @katrinachoe.bsky.social · Apr 23

Job alert ⚠️ - we are looking for a research tech with experience in mouse-related 🐭 and molecular bench 🧪 work! A great position for recent graduates looking for additional research experience, but we also welcome applications from more experienced scientists. Apply here 👉 tinyurl.com/wprtj822

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Katrina Choe @katrinachoe.bsky.social · Apr 23

So sorry for your loss, sending hugs to your family!

Katrina Choe @katrinachoe.bsky.social · Apr 15

Congrats Mark!! Awesome news

Katrina Choe @katrinachoe.bsky.social · Mar 27

Fantastic news for @uoft.bsky.social! I've been so lucky to have known Dr. Woodin since I was an undergraduate student at U of T. Her research and teaching have had a huge positive influence on my career as a neuroscientist. My heartfelt congratulations to Dr. Woodin!

University of Toronto @utoronto.ca · Mar 26

Melanie Woodin, an internationally recognized neuroscientist who studies the mechanisms underlying learning and memory in the brain, has been named #UofT’s 17th president. ➡️ uoft.me/uoftpres

Image shows Melanie Woodin

Reposted by Katrina Choe

Paul Frankland @franklandlab.bsky.social · Mar 10

GREAT opportunity for Canadian trainees:

FOUR talks at the Neural Circuits and Behaviour CAN satellite are reserved for trainees.

AND the best trainee talk wins a $500 prize (thanks to the Garry Hurvitz Centre for Brain & Mental Health).

REGISTER today and submit your proposed talk title.

Neural Circuits and Behaviour CAN 2025 Satellite Meeting

Come join us at our second-annual CAN satellite event, bringing together Canadian neuroscientists studying circuits and behaviour.

www.eventbrite.ca

Katrina Choe @katrinachoe.bsky.social · Jan 26

It was a great pleasure to host our #Neuroscience workshop “Exploring the Brain” at the WISE (Women in Science and Engineering) National Conference 2025 in Toronto! Awesome demonstrations by Ash and Siyao @siyaoneuro.bsky.social