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Maithe Arruda Carvalho

@arrudacarvalho.bsky.social
313 followers 293 following 32 posts

Neuroscientist. Associate Professor @ University of Toronto Scarborough.

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Reposted by Maithe Arruda Carvalho
Avi Lewis @avilewis.ca · 01/10/2026
Throwing billions in public money behind a pipeline at a time of climate breakdown – while sweeping aside environmental protections, meaningful Indigenous consultation and workers’ right to strike – is absolutely not in the national interest.
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Reposted by Maithe Arruda Carvalho
Ajuna Soerjadi 🌸 @ethicsofai.bsky.social · 11/07/2026
Not a single prompt can change the fact that these technologies destruct the environment and our institutions, concentrate power in the hands of a few technofacists, further marginalize already minoritizes communities and invisibilize the human labor and toxic supply chain that sustain the industry
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Andrew Pruszynski @andpru.bsky.social · 25/09/2026
Of the options offered in the survey going to one grant per competition is the worst by a country mile. It's reckless and serves only to temporarily paper over reality.
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Reposted by Maithe Arruda Carvalho
Ciaran Murphy-Royal @murphyroyallab.org · 25/09/2026
Come join us at the @crchum.bsky.social ! It really is as good as it looks!
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Reposted by Maithe Arruda Carvalho
BCCHR ResDev (DM) @resdevbcch.bsky.social · 24/09/2026
‼️ attention Canadian health researchers ‼️ #CIHR has posted the Project Grants Discussion Paper and a related *survey* cihr-irsc.gc.ca/e/54821.html Please please participate 🙏
photo of the “help shape the future of the project grant program” announcement by CIHR. TEXT is accessible in the hyperlink in this post.
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Nature Portfolio @natureportfolio.nature.com · 23/09/2026
A paper in Nature presents the largest-known map of gene expression in the human prefrontal cortex region of the brain. go.nature.com/46BFtJZ 🧬🧪
This is figure 1, which shows single-nucleus transcriptomic atlas of the human DLPFC across the lifespan.
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Reposted by Maithe Arruda Carvalho
Mark Ungrin @mark-ungrin.bsky.social · 10/02/2025
This is just vile. Even the initial differential is unacceptable, but the sudden drop in 2020 puts the lie to every claim of good intentions and "balancing" impacts when public health decided to surrender to COVID.
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Reposted by Maithe Arruda Carvalho
Jim Woodgett @jwoodgett.bsky.social · 23/09/2026
There’s a concerted campaign to undermine EDI in Canada. The evidence behind EDI policies reducing excellence are based on abysmal, flawed evidence. Look at who feels threatened by equity, diversity and inclusion. They’re the least diverse, least equitable and most exclusive people. Just no.
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Cell & Systems Biology (CSB) @uoftcellsysbiol.bsky.social · 22/09/2026
CSB invites applications for a tenure track position at #UofT in Systems Neurophysiology! Apply in full by November 16, 2026. Full details in the link. jobs.utoronto.ca/job/Toronto-...
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David Moscrop @davidmoscrop.com · 21/09/2026
I think it's ill-advised and anti-democratic to introduce an omnibus bill, cite a crisis, and rush major changes to labour and environmental law. It's going to provoke aggressive resistance and risks, ironically, slowing down the projects the government is so keen on. It's going to be a huge mess.
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Milenna van Dijk @milennavandijk.bsky.social · 20/09/2026
We’re looking for 2 enthusiastic postdocs! Join our lab studying how gene-by-environment interactions shape depression. We integrate transcriptomics, genetics, and MRI to understand why some youth are more vulnerable to depression following adversity, while others are resilient. Spread the word!
nyspi.applicantpro.com
Postdoctoral Researcher - New York, NY
Job Title: Postdoctoral Researcher Grade: 18 Salary: $67,552 - $81,257 The Research Foundation for Mental Hygiene is seeking a qualified candidate to fill a full-time Postdoctoral Researcher position....
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Reposted by Maithe Arruda Carvalho
Robert Rozeske @rrrozeske.bsky.social · 16/09/2026
I'm thrilled to share our recent publication “Overlapping representations in the ventral hippocampus support rapid fear memory retrieval” www.nature.com/articles/s41... We asked, what is the moment-to-moment link between HPC spatial representations, memory retrieval, and fear behaviour?
nature.com
Overlapping representations in the ventral hippocampus support rapid fear memory retrieval - Nature Neuroscience
Fear learning increases the similarity of threatening and neutral context representations in ventral CA1, which may enable faster reinstatement of threat memories, compared to dorsal CA1.
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Reposted by Maithe Arruda Carvalho
sephirAmy @sephiramy.bsky.social · 17/09/2026
how about some good news: new cat just dropped!!!!
a photo of a small, spotted wild cat, with orange fur and brown circular markings, staring up with big golden eyes.Meet the First New Cat Species Discovered in 100 Years

A small, spotted tiger cat from Bolivia may just be the beginning of a wave of new small cat species.

This 10-year-old male tiger cat is the first of his species (named Leopardus tilcayo) known to science. He is approximately 18 inches from head to end of body and weighs only 3 pounds, making him smaller than the average domestic cat. This video was captured at the Senda Verde Animal Refuge in Bolivia’s Yungas region, where he currently resides.
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🔬🔭🧭👨‍💻🏞️👾🤖🌡️ @dcrinyyc.bsky.social · 17/09/2026
Again another really good speech by Carney, the problem is, he's also written really good books that have proven to be more fiction than reality(and many other things). Actions speak, words are propaganda.
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Canadian Dimension @canadiandimension.bsky.social · 15/09/2026
The benefits of privatization are routinely asserted with great confidence, although rarely with any proof. The evidence suggests that privatization costs us dearly while eroding public control over key parts of our economy—and, with it, our collective power and democratic capacity as a nation.
canadiandimension.com
How privatization became the economic dogma of our time
The doctrine of privatization has become so pervasive that it is rarely questioned or challenged, becoming a driving force in our politics. The benefits of privatization are routinely asserted with gr...
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Avi Lewis @avilewis.ca · 15/09/2026
Privatizing airports is a terrible deal for travellers, workers, and the public purse. Around the world, it has led to higher travel costs, fewer jobs and worse working conditions.
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Mazen Kheirbek @mazenkheirbek.bsky.social · 14/09/2026
Our new review is out now on the ventral hippocampus, highlighting a large body of recent work, from the information it represents to how internal state shapes its activity to how its circuits influence behavior.
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Reposted by Maithe Arruda Carvalho
My IRL friends call me Chris @christyceeck.bsky.social · 14/09/2026
Again, in this clip when Carney mentions the FINRA example, he means AI companies self-regulating. (FINRA is private, industry-financed self-regulation...that the regulated financial firms fight back against.) Why? Because you wouldn't want to stifle innovation & "legislation takes time." #CdnPoli
youtube.com
Canada’s Carney on Capital Investment, AI, US Trade
YouTube video by Bloomberg Television
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Blake Richards @tyrellturing.bsky.social · 14/09/2026
This thread is good to read. In my experience, what @michaelhendricks.bsky.social is describing here is not the situation faced by all labs in Canada, but it does describe the situation faced by far too many. And, it's all down to one simple thing: the feds don't find the tri-councils enough!
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Blake Richards @tyrellturing.bsky.social · 14/09/2026
That's it, that's all. Nothing fancy, no new programs, no new administrative overhead or burden. Just double the amount in the pool for Discovery Grants and Project Grants. It wouldn't even be that much money in the grand scheme of things, and it would pay for itself and then some in the future!
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Greg Bester 🇨🇦 @gregbester.bsky.social · 13/09/2026
Carney's pitch to Canadians is he'll save them from American Imperialism by selling the country to American Capitalism.
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Orlagh O’Kelly @orlaghokelly.bsky.social · 10/09/2026
There will be NO environmental assessments for olearys AI data centre . That will use 3x the power of all of Alberta. Not “one” assessment. NONE required * *Unless the feds decide to voluntarily designate. Which they very likely won’t. They’re too busy appeasing Smith www.cbc.ca/news/canada/...
cbc.ca
No provincial environmental impact assessment required for Kevin O'Leary's proposed Wonder Valley data centre | CBC News
Kevin O’Leary's proposed Wonder Valley project in northwestern Alberta will not need to undergo an environmental impact assessment from the province due to existing water and power systems. However, t...
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Adam Bunch @adambunch.bsky.social · 10/09/2026
Enraging. We've got a premier doing Trump's work for him, dismantling all the best things about Ontario.
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🇨🇦Joe Vipond🇨🇦 @jvipondmd.bsky.social · 10/09/2026
"These really contentious plans will give free rein to large polluters, put nature and species at risk, limit public participation and keep Canadians in the dark about the impacts to their health and safety. It's a huge abdication of responsibility from the feds."
nationalobserver.com
Feds quietly exempt oilsands and gas power plants from environmental impact assessments
The change comes as part of a suite of amendments to Canada's impact assessment laws passed by the Carney government early Wednesday morning.
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Avi Lewis @avilewis.ca · 09/09/2026
We don’t save Canada by selling it off.
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The Serfs (youtube.com/theserfstv) @theserfstv.bsky.social · 09/09/2026
He's doing racist revisionist history of a white supremacist who starved Indigenous children to death. Even by the standards of the time John A Macdonald shocked parliament by openly stating the "superiority of the aryan race" and that Indigenous and Asian people were a "different species"
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Bertoglio lab (FMC/UFSC) @bertogliolab.bsky.social · 02/09/2026
Amygdala excitability across development: mechanisms, environmental influences, and behavioral outcomes www.cell.com/trends/neuro...
cell.com
Amygdala excitability across development: mechanisms, environmental influences, and behavioral outcomes
Recent work in rodent models provides mechanistic insights into how the excitability of principal neurons is dynamically regulated to facilitate the encoding and retrieval of emotionally salient memor...
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Reposted by Maithe Arruda Carvalho
Bertoglio lab (FMC/UFSC) @bertogliolab.bsky.social · 02/09/2026
The mPFC-reuniens-hippocampus pathway links brain circuitry and neural plasticity in antidepressant response www.nature.com/articles/s41...
nature.com
The mPFC-reuniens-hippocampus pathway links brain circuitry and neural plasticity in antidepressant response - Nature Communications
Neural mechanisms underlying depression are not fully understood. This study identifies a prefrontal–thalamic–hippocampal circuit that links antidepressant-like behavior with restored neural plasticit...
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Reposted by Maithe Arruda Carvalho
Canadian Association for Neuroscience @canacn.bsky.social · 31/08/2026
Read CAN's submission to the 2026 pre-budget consultations: can-acn.org/read-cans-su... CAN recommends that the Government of Canada implement a five-year plan to increase the budgets CIHR, NSERC and SSHRC by a minimum of 10% annually.
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🇨🇦Joe Vipond🇨🇦 @jvipondmd.bsky.social · 29/08/2026
"We are living through the devastating reality of not having a meaningful plan to address climate change. Yet, at this critical moment, the government is fighting to throw our case out of court, while simultaneously moving ahead with fossil fuel expansion and rolling back key climate protections.”
cbc.ca
Carney government asks court to strike down climate litigation | CBC News
The federal government is asking a court to toss out a high-profile environmental lawsuit, arguing it has no business directing Canada's climate policy.
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BCCHR ResDev (DM) @resdevbcch.bsky.social · 28/08/2026
dear Canadian grant reviewers and international reviewers of Canadian grants: NOPE NOPE NOPE federal policy prohibits use of AI for grant review. **please respect the privacy / confidentiality of your peers** thank you!
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Eric Topol @erictopol.bsky.social · 28/08/2026
We need to rev it up. Cancer vaccines. nature.com/articles/d41... @nature.com
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Esther Verheyen 🇨🇦 @estherverheyen.bsky.social · 28/08/2026
Meanwhile excellent scientists across Canada are shuttering up their labs and unable to pay trained staff because the CIHR budgets have not kept pace with inflation. I have nothing against the new recruits, I just wish that 🇨🇦 wanted to support all the folks aready here trying to advance knowledge.
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Andrew Iwaniuk @evoneuro.bsky.social · 28/08/2026
I know lots of Canadians want to celebrate this as a “win” but it isn’t. We have consistently underfunded our universities and research capacity for decades. Adding big names that eat up a lot of capital will not improve our science at all. #Canada www.ctvnews.ca/sci-tech/art...
ctvnews.ca
Canada recruits dozens of foreign scientists, researchers, poaching many from U.S.
Canadian universities have recruited dozens of foreign scientists and researchers, many of them poached from prestigious U.S. institutions.
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Don Davies @donvdavies.bsky.social · 18/08/2026
As Canada burns, the federal government is expanding new fossil fuel projects that accelerate climate change. Yet the Carney government is using taxpayer dollars to mislead Canadians on their climate policy. (1/3)
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Arghavan Salles, MD, PhD @arghavansallesmd.medsky.social · 19/08/2026
“Have you tried putting it in Claude?” No, I have not. I am not interested in outsourcing my brain to an algorithm that steals from everyone and makes stuff up while also requiring so many resources it’s hastening the climate apocalypse.
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Jessica Tollkuhn @tollkuhn.bsky.social · 18/08/2026
here's a link to the publication www.pnas.org/doi/10.1073/...
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Canadian Dimension @canadiandimension.bsky.social · 15/08/2026
Canada’s economic future should not be shaped through an invite-only gathering of the ultra-wealthy. It should be determined democratically, with the public good and long-term sustainability taking precedence over private profit, writes Bianca Mugyenyi.
canadiandimension.com
Carney’s CEO summit could put public assets on the table
This September, a who’s who of global finance will descend on a luxury hotel in downtown Toronto for an invitation-only event, the first-ever Canada Investment Summit. As Bianca Mugyenyi writes, the s...
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SfN Journals @sfnjournals.bsky.social · 14/08/2026
#eNeuro | StereoPylot: An Open-Source Raspberry Pi-Based Stereotaxic Apparatus Controller with 3D Printed Components for Fully Motorized Control, Digital Display, and Customizable Features doi.org/10.1523/ENEURO.0460-25.2026
StereoPylot: An Open-Source Raspberry Pi-Based Stereotaxic Apparatus Controller with 3D Printed Components for Fully Motorized Control, Digital Display, and Customizable Features
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Reposted by Maithe Arruda Carvalho
Bertoglio lab (FMC/UFSC) @bertogliolab.bsky.social · 14/08/2026
Artificial hibernation reveals synaptic engram architecture associated with memory retention www.science.org/doi/10.1126/...
science.org
Artificial hibernation reveals synaptic engram architecture associated with memory retention
Memories leave lasting physical changes at the synaptic level. Although stable, larger spines are thought to support memory, the high turnover of dendritic spines and the drifting of neuronal represen...
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Reposted by Maithe Arruda Carvalho
Michael Hendricks 🇨🇦 @michaelhendricks.bsky.social · 13/08/2026
Even the lower bound estimates of Elon Musk's personal death toll in Africa exceed Rwanda, Cambodia, and the Holocaust. There is still a (rapidly diminishing) opportunity to do something, but for murder-by-policy cannot hold the attention of any policymaker or mainstream news editors.
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Caitlin Orsini @caitanne.bsky.social · 11/08/2026
Positions in the lab are still open! Please consider applying to join our team here in Austin! utaustin.wd1.myworkdayjobs.com/UTstaff/job/...
utaustin.wd1.myworkdayjobs.com
Social Science/Humanities Research Associate II
Job Posting Title: Social Science/Humanities Research Associate II ---- Hiring Department: Department of Psychology ---- Position Open To: All Applicants ---- Weekly Scheduled Hours: 40 ---- FLSA Stat...
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Bita Moghaddam @bita137.bsky.social · 11/08/2026
Comprehensive study from Gavan McNally's team on punishment learning As always, behavioral analyses are superb👌 and the dissociable contributions of basolateral amygdala and zona incerta to retention of punishment learning is really interesting www.jneurosci.org/content/earl...
jneurosci.org
Brain architecture of punishment learning
Learning from punishment allows animals to suppress actions that produce adverse consequences while maintaining other rewarded behaviors. However, the brain mechanisms of this learning are poorly unde...
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Reposted by Maithe Arruda Carvalho
Tom Kash @superkash.bsky.social · 08/08/2026
Hi Folks, with @lisataxier.bsky.social moving on to open her own lab at Stony Brook, I am in the market for a new postdoctoral fellow who wants to do slice electrophysiology. We have a number of really exciting projects, translational to basic science, that are ephys focused.
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Maithe Arruda Carvalho @arrudacarvalho.bsky.social · 11/08/2026
Nice highlight of our recent paper in eNeuro!
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Reposted by Maithe Arruda Carvalho
SfN Journals @sfnjournals.bsky.social · 07/08/2026
#eNeuro: Cruz-Sanchez et al. show that two discrete brain subregions, the ventral and intermediate hippocampus, are necessary for “what–where” memory in mice, expanding our understanding of how the brain processes spatial information. doi.org/10.1523/ENEURO.0105-26.2026
Scientific graphs and text illustrating experiment results with labeled brain diagrams and bar charts.
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Aparna Nair @disabilitystor1.bsky.social · 10/08/2026
Absolutely bleak reading before the fall semester of 2026 www.newyorker.com/news/fault-l...
newyorker.com
The Despair of the Professor in the Age of A.I.
“Was it always the case that half of our students would cheat if it were easy enough?”
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🇨🇦Joe Vipond🇨🇦 @jvipondmd.bsky.social · 09/08/2026
Echoing our call for a national inquiry in Canada. 1/2
cbc.ca
Feds should devise way to reflect on COVID-19 response, says Canada's chief science adviser | CBC News
Canada's chief science adviser says the federal government should devise a way to reflect on its response to the COVID-19 pandemic to better prepare the country and Canadians for future public health ...
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Still COVIDing Canada @stillcovidingca.bsky.social · 31/07/2026
📣 Nuvaxovid now! We need access to the Nuvaxovid (formerly Novavax) COVID-19 vaccine! ✉️ Use our online tool to send emails to health ministers stillcoviding.ca/en/take-acti... #NuvaxovidNow #Novavax #COVID #CovidIsNotOver
Illustration of a syringe, accompanied by white and gold text on a blue background reading: Nuvaxovid now! Canadians need access to the Nuvaxovid vaccine in 2026/2027. Use our online tool to send emails to health ministers. StillCoviding.ca #NuvaxovidNow
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