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Tim Bussey

@timbussey.bsky.social
694 followers 605 following 4 posts

Behavioural Neuroscience

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Brad Postle @bradpostle.bsky.social · 23/09/2026
Ontario peeps! www.eventbrite.ca/e/pavlovs-do...
eventbrite.ca
Pavlov's Dogz
The Pilot Presents Pavlov's Dogz
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Marco A. Maximo Prado @maximoprado.bsky.social · 20/07/2026
for any followers interested in donating for this great iniative to honour our dear friend, colleague and cardiovascular researcher Dr. Rob Gros crowdfunding.savestation.ca/fundraisers/...
crowdfunding.savestation.ca
The Dr. Robert Gros HeartSafe Fund
I'm raising money for a SaveStation to help make our communities #CARDIACSAFE! With less than 10 minutes to save a life from Sudden Cardiac Arrest, we all need the power to take action. Please help me...
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Marco A. Maximo Prado @maximoprado.bsky.social · 10/07/2026
#fluorescencefriday NeuN (gray) and nuclei (red) from the @mind-western.bsky.social team
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SfN Journals @sfnjournals.bsky.social · 07/06/2026
#eNeuro | Effect of Functionally Selective Dopamine D1 Receptor Agonists on Complex Cognitive Processes in a Rodent Touchscreen Operant Chamber Task doi.org/10.1523/ENEURO.0296-25.2026
Dopamine D1 receptor (D1R) signaling in the brain has been strongly implicated in multiple cognitive processes, with D1 agonists known to enhance performance. The development of functionally selective D1 agonists that differentially activate D1R-mediated cAMP versus β-arrestin signaling may offer precision therapy if we understand how signaling bias impacts integrated cognitive processes in complex tasks. We therefore examined the effects of two selective D1 agonists, 2-methyldihydrexidine (2MDHX) and PF-06256142 (PF), on a rodent touchscreen-based Trial-Unique Nonmatching-To-Location task. Primarily assessing both spatial working memory and pattern separation in adult male rats, this behavioral paradigm requires greater cognitive demands to maintain performance throughout the testing session, significantly increasing task complexity. Our results revealed an inverted U-shaped dose response curve for both compounds, aligning with our previously published work, but did not demonstrate marked improvement in task performance. Subjects treated with the mid-dose range (10, 100, and 1,000 nmol/kg) generally performed similarly to, or slightly below, vehicle treated subjects whereas the highest dose administered (10,000 nmol/kg) significantly reduced task performance and engagement. The behavioral effects were similar for PF and 2MDHX, suggesting that functional selectivity/bias (at least for the cAMP versus β-arrestin signaling pathways) was not a major factor in this cognitive task. In addition to providing new information about how D1 agonists might affect different aspects of cognition, our data underscores the importance of dose optimization and task structure and showcases the translational value of touchscreen-based paradigms when assessing potential cognitive enhancers.
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Marco A. Maximo Prado @maximoprado.bsky.social · 01/05/2026
happy #fluorescencefriday Compare with last week’s post on APOE3 mice now we have the AD APOE4 model with blood vessels in pink, amyloid in blue and microglia in green. Courtesy of the @mind-western.bsky.social @touchscreencog.bsky.social @tridentpct.bsky.social teams
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Marco A. Maximo Prado @maximoprado.bsky.social · 12/03/2026
Have you heard about MouseBytes? Our date repository for @timbussey.bsky.social @lisasaksida.bsky.social touchscreen datasets is growing. Daniel Palmer just uploaded a several datasets to reach over 27,000 individual 🐁 💪 mousebytes.ca/home Look out for new features coming soon
mousebytes.ca
MouseBytes
MouseBytes
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StressMarq Biosciences @stressmarq.bsky.social · 11/02/2026
Product Citation 🍁 Researchers @westernu.ca utilized StressMarq's #AlphaSynuclein PFFs to create touchscreen cognitive tests that detect early stimulus-response learning deficits in a mouse model of #synucleinopathy. Paper 🛶 go.nature.com/3LPaC5K Product 🌲 bit.ly/2u9YHV2
go.nature.com
Impairment in stimulus-response learning as a cognitive biomarker in a model of synucleinopathy - Translational Psychiatry
Translating findings from preclinical assessments of cognitive function relevant to synucleinopathies into successful clinical trials poses significant challenges. In this study, we examined the effectiveness of human-relevant touchscreen cognitive a...
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Marco A. Maximo Prado @maximoprado.bsky.social · 13/02/2026
#fluorescencedriday First attempt on NeuN labeling (magenta) to quantify the 3D distribution of neurons and interface with blood vessels (yellow) by @shahrzadbahrampour.bsky.social and @nadiahaghbinphd.bsky.social for the @mind-western.bsky.social @neuroak.bsky.social
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TRIDENT Preclinical Trials @tridentpct.bsky.social · 07/02/2026
Incredible interview with one seriously awesome prof! @liisagalea.bsky.social, the world is so much better for the work you do! 😍💜👏 imsmagazine.com/2026/01/26/n...
imsmagazine.com
“Not a Bikini”
By Rebecca Smythe & Areej Mir
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Marco A. Maximo Prado @maximoprado.bsky.social · 06/02/2026
#fluorescencefriday distribution of microglia in the whole brain
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Marco A. Maximo Prado @maximoprado.bsky.social · 30/01/2026
#fluorescencefriday 🧠 from AppNL-G-F mouse model triple stained for amyloid beta (Cyan) IBA1 (microglia magenta) and CD31 (blood vessels yellow) thanks to @shahrzadbahrampour.bsky.social @nadiahaghbinphd.bsky.social and @arashsalah.bsky.social @mind-western.bsky.social
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Liisa Galea @liisagalea.bsky.social · 11/10/2025
12 episodes coming out! how lucky am I? I got to interview 🤩 experts in psychiatry, gynecology, global health, nephrology, neuroscience, microbiome, FemTech, charitiable giving, & policy...join us for sometimes intense, but always informative conversations, sprinkled with some laughs along the way!
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Marco A. Maximo Prado @maximoprado.bsky.social · 03/10/2025
#fluorescencefriday shows the intimate relationship between astrocytes, (cyan) microglia (green) and amyloid plaques (magenta). we find that in APOE4 mice there is much more glia associated with plaques.
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Campden Instruments @campdeninstruments.bsky.social · 02/10/2025
New series coming up where we highlight Bussey-Saksida Touchscreen Chamber tasks! First is the 4-Choice Gambling Task! This task is used to investigate decision-making which can be implicated in many neurological and psychiatric disorders. To learn more: lnkd.in/dCFcWc3Z
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Samar Rizvi @szrizvi.bsky.social · 25/09/2025
#neuroskyence community: If you're working with touchscreen operant systems, touchscreencognition.org is a fantastic resource to check out. You'll find SOPs, training videos, real data examples, forums, and more. And best of all, you can stay updated and connected with the touchscreen community 🧪
touchscreencognition.org
Touchscreen Cognition | A virtual space for the world-wide community of touchscreen users, the touchscreen-curious and anyone just interested in improving the standards of behavioural testing.
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Lafayette Instrument @lafayetteic.bsky.social · 25/09/2025
Explore @touchscreencog.bsky.social, a global hub for touchscreen users, researchers & enthusiasts! 🔹 Training Videos 🔹 SOPs 🔹 Webinars 🔹 Discussion Forums Refine your research, stay updated, & join the community! TouchScreenCognition.org #BehavioralResearch #TouchscreenTech #Science
Visit TouchScreenCognition.org
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Marco A. Maximo Prado @maximoprado.bsky.social · 19/09/2025
If you are interested in great #fluorescencefriday videos, images and anything microscopy or MRI related follow our new account for the MIND platform @mind-western.bsky.social @neuroak.bsky.social @touchscreencog.bsky.social @tridentpct.bsky.social
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Marco A. Maximo Prado @maximoprado.bsky.social · 12/09/2025
It is #fluorescencefriday and the MIND platform @touchscreencog.bsky.social @tridentpct.bsky.social invites you to see brain blood vessels stained with CD31 and imaged by lightsheet. 🐁 🧠 cleared with SHIELD . thanks as always to @shahrzadbahrampour.bsky.social @arashsalah.bsky.social and company.
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Marco A. Maximo Prado @maximoprado.bsky.social · 03/09/2025
A blog by Marilene Lopes explaining our latest fidings on STIP1 in early development communities.springernature.com/posts/the-un...
communities.springernature.com
The Unexpected Guardian of Early Life
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Marco A. Maximo Prado @maximoprado.bsky.social · 23/08/2025
Latest paper is Vlad Novikov’s careful analysis of proteostasis in a TDP-43 mouse model A Longitudinal Study of Sex Differences in a TDP‐43 Mouse Model Reveals STI1 Regulation of TDP‐43 Proteinopathy and Motor Deficits - Journal of Neurochemistry - onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
A Longitudinal Study of Sex Differences in a TDP‐43 Mouse Model Reveals STI1 Regulation of TDP‐43 Proteinopathy and Motor Deficits
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease characterized by abnormal accumulation of the RNA-binding protein TDP-43. Using a mouse model that mildly overexpresses human ...
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Ravi Menon @northernthrux.bsky.social · 21/08/2025
Ontario’s message to the international world of biotech, medical devices and pharma…we don’t want your money or research partnerships.
eara.eu
The Dangerous Precedent of Political Interference in Medical Research in Canada
The European Animal Research Association (EARA) expresses deep concern over recent statements by Ontario Premier Doug Ford regarding biomedical research involving dogs.
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Marco A. Maximo Prado @maximoprado.bsky.social · 22/08/2025
Congratulations 🎉 🥳 to @kateonuska.bsky.social for successfully defending her PhD (co-supervised with Taylor Schmitz). No edits so she can rest for few days. Keep an eye out for Kate as she is one of a kind.
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Marco A. Maximo Prado @maximoprado.bsky.social · 15/08/2025
Our new interest: blood vessels and amyloid plaque interactions after lecanemab treatment of an ApoE4 AD mouse line #fluorescenceFriday @arashsalah.bsky.social and @shahrzadbahrampour.bsky.social for credits
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Marco A. Maximo Prado @maximoprado.bsky.social · 15/08/2025
a second rendering for #fluorescencefriday
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TouchscreenCognition @touchscreencog.bsky.social · 31/07/2025
Thanks to everyone who took the time to visit our booth at #AAIC25! We had a wonderful time and met some amazing people being part of the CIHR Institute of Aging's Canadian Pavilion. Until next year!
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Czarina Evangelista, PhD @czarevangelista.bsky.social · 30/07/2025
Last day of #AAIC25 for the exhibitors! Energy is still high 😎 come by our booth at the Canadian 🇨🇦 Pavilion @touchscreencog.bsky.social @westernubrainscan.bsky.social @lisasaksida.bsky.social @timbussey.bsky.social @maximoprado.bsky.social @pradobsky.bsky.social
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TouchscreenCognition @touchscreencog.bsky.social · 30/07/2025
Great to have all our leaders out supporting the team and young talent at #AAIC25! Shout out to @lisasaksida.bsky.social, @timbussey.bsky.social, @maximoprado.bsky.social, and Vania Prado.
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TouchscreenCognition @touchscreencog.bsky.social · 29/07/2025
So much talent from @westernu.ca presenting their cognition and Alzheimer's research at #AAIC25! We are very proud of all of their hard work. Read full abstracts here: touchscreencognition.org/aaic-2025/
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Lafayette Instrument @lafayetteic.bsky.social · 15/07/2025
Touchscreen-based assessments are transforming our understanding of brain regulation in complex behaviors. Piantadosi et al. (2025) published a guide about experimental design and essential hardware modifications for specialized research. Check it out: www.nature.com/articles/s41...
Campden Bussey-Saksida Touchscreen Chambers
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Marco A. Maximo Prado @maximoprado.bsky.social · 29/07/2025
Check out our posters on Tuesday #AAIC. Learn about new mouse models in which we replaced mouse alpha synuclein with human gene, touchscreen testing in AD mice and ApoE4.
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Marco A. Maximo Prado @maximoprado.bsky.social · 29/07/2025
If you are interested in learning the limitations of current models of alpha synuclein pathology and why we need new KI humanized mouse models check out Latiyah’s poster #AAIC25 Poster 200 Characterization of mouse of Synucleinopathies @tridentpct.bsky.social @touchscreencog.bsky.social
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Marco A. Maximo Prado @maximoprado.bsky.social · 24/07/2025
Hot off the press Huge congrats to Alycia Crook a PhD student from the lab www.nature.com/articles/s41...
nature.com
Characterization of a novel transgenic mouse model to investigate brain-wide activation of astrocyte Gq signaling - Lab Animal
This study uses a transgenic mouse line expressing Cre-inducible astro-hM3Dq to study astrocytes’ role in neuroinflammation and cognition without the use of viral transduction, mitigating the potentia...
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Marco A. Maximo Prado @maximoprado.bsky.social · 28/07/2025
the MouseTRAP team will be presenting the following posters at #AAIC25 today. Come say high and learn how we are using translational approaches to better understand proteinopathies. @touchscreencog.bsky.social @tridentpct.bsky.social
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Marco A. Maximo Prado @maximoprado.bsky.social · 28/07/2025
Get some swag plus strawberry milkshake at our booths in the Canadian Pavillion @touchscreencog.bsky.social @tridentpct.bsky.social and learn more about translational approaches to cognition, how well 🐁 can perform in touchscreen tasks #AAIC25
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Marco A. Maximo Prado @maximoprado.bsky.social · 28/07/2025
Hey #AAIC25 check out Arash’s presentation today at 8 AM and see some cool whole brain videos of the vasculaturs and plaques plus touchscreen testing room 106 Evaluating the Efficacy and Risks of Early Lecanemab Treatment in APOE4 Humanized Alzheimer’s Disease Mouse Models also poster 151
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Marco A. Maximo Prado @maximoprado.bsky.social · 28/07/2025
If you you interested in translational research #AAIC25 and improved rigour in cognitive testing check out the 🐁 2 🧍 approaches to test cognition in identical ways in mice and humans. @touchscreencog.bsky.social get some swag at the Canadian Pavilion.
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Marco A. Maximo Prado @maximoprado.bsky.social · 27/07/2025
The MouseTRAP team @touchscreencog.bsky.social @tridentpct.bsky.social presentations at #AAIC25 If you are interested in translating results from basic to clinical research come for a chat.
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Ravi Menon @northernthrux.bsky.social · 27/07/2025
Why does TRIDENT have strawberry milkshakes at its booth at #AAIC2025 ? Listen to Sarah explain the scientific reasons.
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TRIDENT Preclinical Trials @tridentpct.bsky.social · 27/07/2025
Look at this world-class crew! 😍 So excited to see resident TRIDENT experts @maximoprado.bsky.social and Dr. Vania Prado stop by and say hi! #AAIC25 #NFRF
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Marco A. Maximo Prado @maximoprado.bsky.social · 27/07/2025
come by @tridentpct.bsky.social and @touchscreencog.bsky.social #AAIC25 and get your free strawberry milkshake (just the ones out mice get when they do their touchscreen tasks). Learn about touchscreen testing in mice and humans and the TRIDENT pipeline.
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Czarina Evangelista, PhD @czarevangelista.bsky.social · 28/07/2025
Great 1st day at #AAIC25! We're here for the rest of the week, stop by our @touchscreencog.bsky.social booth that's located in the Canadian Pavilion. 🎉 @maximoprado.bsky.social @westernubrainscan.bsky.social @lisasaksida.bsky.social @timbussey.bsky.social @tcnlab.bsky.social @pradobsky.bsky.social
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Marco A. Maximo Prado @maximoprado.bsky.social · 11/07/2025
#fluorescencefriday blood vessels and amyloid plaques in a 🐭 model of AD. courtesy of @shahrzadbahrampour.bsky.social Luke Smolders and Arash Salahinejad @tridentpct.bsky.social @touchscreencog.bsky.social We will be 🔜 opening up for external services and collaborations via MIND @westernu.ca
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TRIDENT Preclinical Trials @tridentpct.bsky.social · 19/06/2025
We have a Newsletter! Hear about all the cutting-edge research at TRIDENT...direct to your inbox! Check out Synaptozone, the TRIDENT E-Newsletter Spring 2025 edition via the link below! #TRIDENT createsend.com/t/y-E25C42E0... To subscribe see the link here: confirmsubscription.com/h/y/6B03FD42...
A graphic image with the words TRIDENT Synaptozone
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Ravi Menon @northernthrux.bsky.social · 04/07/2025
@tridentpct.bsky.social was pleased to welcome MP Lianne Rood and her Constituency Assistant Kim Heathcote to tour TRIDENT facilities with @maximoprado.bsky.social (MouseTRAP), @stefan-everling.bsky.social (marmoset), me (@cfmm.bsky.social) and @jackiesullivan.bsky.social (open science). So engaged!
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TouchscreenCognition @touchscreencog.bsky.social · 18/06/2025
Congratulations to Samina Panjwani on successfully defending her Masters thesis at @westernu.bsky.social today! Amazing work! @timbussey.bsky.social @lisasaksida.bsky.social @maximoprado.bsky.social
Samina Panjwani with Tim Bussey, PhDSamina Panjwani holds up a goblet.
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Liisa Galea @liisagalea.bsky.social · 16/06/2025
Our latest review on perimenopause menopause and hormone therapy. What key issues have we missed and how can we do better from education to research to clinical care. With Laura Gravelsins! www.cambridge.org/core/journal...
cambridge.org
One size does not fit all: how type of menopause and hormone therapy matters for brain health | The British Journal of Psychiatry | Cambridge Core
One size does not fit all: how type of menopause and hormone therapy matters for brain health
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Marco A. Maximo Prado @maximoprado.bsky.social · 13/06/2025
For #fluorescencefriday the Mesoscopic Integrated NeuroImaging Data (MIND) platform @westernu.bsky.social presents abeta plaques and blood vessels in the 🧠 of our ApoE4 mouse model of AD. 🧪 #clearing #lightsheet 🔬 Courtesy of Arash Salahinejad, Luke Smolders and @shahrzadbahrampour.bsky.social
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Paul Sheppard 🧠 @paulsheppard.bsky.social · 02/06/2025
🚨 NEW PAPER ALERT 🚨 🚨 KLAXON KLAXON 🚨 Impaired Cognitive Flexibility With Preserved Learning in an Amyloid Precursor Protein Knock-In Mouse Model of Amyloidopathy onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Impaired Cognitive Flexibility With Preserved Learning in an Amyloid Precursor Protein Knock‐In Mouse Model of Amyloidopathy
The amyloid precursor protein knock-in mouse model of amyloidopathy (AppNL-G-F/NL-G-F) was assessed on touchscreen-based learning and cognitive flexibility tasks in comparison with both AppNL/NL and ....
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Marco A. Maximo Prado @maximoprado.bsky.social · 30/05/2025
#fluorescencefriday a 🧠 full of amyloid courtesy of @shahrzadbahrampour.bsky.social
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Western BrainsCAN @westernubrainscan.bsky.social · 27/05/2025
Well done to all of our affiliated presenters at this year's @canacn.bsky.social Meeting! Great work!
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