Alain Dagher's Avatar

Alain Dagher

@alaindagher.bsky.social

Neurology and brain imaging. ORCID: 0000-0002-0945-5779

340 Followers  |  390 Following  |  98 Posts  |  Joined: 11.11.2024  |  1.9821

Latest posts by alaindagher.bsky.social on Bluesky

Preview
Quebec tables draft constitution to affirm its 'distinct national character,' premier says | CBC News The constitution, filed at the National Assembly on Thursday and lambasted by opposition parties as a piece of political theatre filed without proper consultation, includes language asserting Quebec’s...

Francois Legault and Simon Jolin-Barrette are vying to become the Thomas Jefferson and Benjamin Franklin of Quebec.

www.cbc.ca/news/canada/...

10.10.2025 13:24 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I hate this place.

08.10.2025 20:39 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
Preview
Estro Vino e Cucina | Cucina Contemporanea Veneziana | Vini Naturali a Venezia Cucina Contemporanea Veneziana e 700+ etichette di vini naturali da tutta Europa. Dario e Alberto Spezzamonte, originari di Murano, guidano rispettivamente sala e cucina.

www.estrovenezia.com/estro/

07.10.2025 22:21 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Excited to share that our work introducing the Reproducible Brain Charts (RBC) data resource is now published in Neuron!! πŸŽ‰

πŸ“š Read the paper: authors.elsevier.com/c/1lpaF3BtfH...
🧠 Explore the RBC dataset: reprobrainchart.github.io

22.09.2025 21:51 β€” πŸ‘ 72    πŸ” 39    πŸ’¬ 3    πŸ“Œ 2

πŸ“… Save the Date: Oxford 2026 Glymphatic Research Symposium!

β€’ Dates: March 30th, March 31st, April 1st 2026.
β€’ Keynote speakers: Maiken Nedergaard & Jonathan Kipnis.
β€’ Venue: Keble College, Oxford, UK.
β€’ Registration link to follow

Looking forward to seeing you there! 🧠

12.09.2025 14:59 β€” πŸ‘ 7    πŸ” 7    πŸ’¬ 0    πŸ“Œ 1
Preview
McGill University to open β€˜satellite campuses’ outside Canada, president says Deep Saini framed the planned satellite operations as an extension of McGill’s Quebec base, describing the university as β€œa locally anchored, globally pre-eminent university.”

How can one volunteer?
www.montrealgazette.com/news/provinc...

17.09.2025 23:30 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

Network spreading and local biological vulnerability in amyotrophic lateral sclerosis |
doi.org/10.1038/s420...

How do brain network structure and local biological features shape the spatial patterning of atrophy in ALS? @asafarahani.bsky.social investigates ‡️

16.09.2025 16:16 β€” πŸ‘ 22    πŸ” 16    πŸ’¬ 1    πŸ“Œ 0
Preview
GitHub - netneurolab/Farahani_ALS: Network spreading and local biological vulnerability in amyotrophic lateral sclerosis Network spreading and local biological vulnerability in amyotrophic lateral sclerosis - netneurolab/Farahani_ALS

Huge thanks to Sanjay Kalra and the CALSNIC team, J Hansen, @vincebaz.bsky.social @goliashf.bsky.social L Collins @dadarmahsa.bsky.social @alaindagher.bsky.social !!

code: github.com/netneurolab/...

16.09.2025 16:16 β€” πŸ‘ 6    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
Post image

The effect of spherical projections on spin tests for brain maps | doi.org/10.1162/IMAG...

Spin tests are the de facto null model for map-to-map comparisons in brain imaging. Why don't they perfectly control false positives? @vincebaz.bsky.social explores ‡️

10.09.2025 13:06 β€” πŸ‘ 25    πŸ” 14    πŸ’¬ 1    πŸ“Œ 1
Post image

New paper in Imaging Neuroscience by Malte R. GΓΌth, Travis E. Baker, et al:

Right posterior theta reflects human parahippocampal phase resetting by salient cues during goal-directed navigation

doi.org/10.1162/IMAG...

10.09.2025 05:41 β€” πŸ‘ 13    πŸ” 5    πŸ’¬ 0    πŸ“Œ 0
Post image

This important new study in Movement Disorders looked at folks w/ REM sleep behavior disorder, a common early sign of Parkinson’s. The results suggest that fMRI may reveal changes in brain networks long before symptoms of PD or dementia w/ Lewy bodies fully emerge. @parkinsondotorg.bsky.social

04.09.2025 11:43 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Post image

Companies charging and people paying up to $500,000 to select embryos with high IQ potential, even though that isn't possible. No less ethical.
"Current models explain about 5% to 10% of the differences in cognitive ability between people"
Front page WSJ today www.wsj.com/us-news/sili...

14.08.2025 18:28 β€” πŸ‘ 197    πŸ” 58    πŸ’¬ 33    πŸ“Œ 24

2. When I give seminars about this, I ask my (professional scientist) audience "How many of you believe that anthropogenic climate change is real?"

Almost all hands raise.

I then ask "How many of you have read the IPCC report or equivalent"

Fewer than 25% of hands raise.

12.08.2025 04:50 β€” πŸ‘ 695    πŸ” 46    πŸ’¬ 4    πŸ“Œ 2
Preview
Separatist group applies to have review of Alberta referendum question quashed | Globalnews.ca A court in Edmonton is being asked Thursday whether a proposed referendum question on Alberta separation would be a violation of the Canadian constitution.

Yesterday I decided to become a Samsung phone user. Today I am a separatist. Never say never! πŸ˜€
globalnews.ca/news/1132233...

07.08.2025 23:29 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Normative blood perfusion map on lateral and medial views of the inflated and 2D flat cortical surfaces (fsLR). Borders and areal names of the multi-modal Glasser parcellation are overlaid on the flat surface. The figure highlights the non-uniform distribution of perfusion scores across the cortex, with areas that have sharp gradient compared to their underlying perfusion score levels (e.g., LIPv and MT/MST).

Normative blood perfusion map on lateral and medial views of the inflated and 2D flat cortical surfaces (fsLR). Borders and areal names of the multi-modal Glasser parcellation are overlaid on the flat surface. The figure highlights the non-uniform distribution of perfusion scores across the cortex, with areas that have sharp gradient compared to their underlying perfusion score levels (e.g., LIPv and MT/MST).

How does cerebral #BloodPerfusion map onto micro-, meso- & macro-scale brain structure? @asafarahani.bsky.social @misicbata.bsky.social &co characterize blood perfusion in the #HumanBrain, revealing how it changes with age & in #NeurodegenerativeDisease @plosbiology.org πŸ§ͺ plos.io/46AEURS

31.07.2025 17:09 β€” πŸ‘ 9    πŸ” 7    πŸ’¬ 0    πŸ“Œ 0
Post image

Integrating and interpreting brain maps | doi.org/10.1016/j.ti...

Imaging and recording technologies make it possible to map multiple biological features of the brain. How can these features be conceptually integrated into a coherent understanding of brain structure and function? ‡️

04.08.2025 14:26 β€” πŸ‘ 72    πŸ” 42    πŸ’¬ 1    πŸ“Œ 0
Preview
LaSalle College says it helps French thrive, so why is Quebec cracking down on it? Instead of punishing the school, the CAQ government should be using it as a model for francization and the principle of harmonious β€œvivre ensemble,” the school’s president and CEO says.

"The Quebec government has served the school with fines totalling almost $30 million for violating the province’s language law by admitting too many students to its English-taught continuing-education programs over the last two years."

Read more at: www.montrealgazette.com/news/article...

23.07.2025 15:02 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

In collab with @alaindagher.bsky.social @misicbata.bsky.social and Shady Rahayel, we used the SIR model to computationally model neurodegenration as a function of the structural connectome and gene expression. SIR cpatures the dynamics better than axonal connectivity (very bad!) and gene expression!

22.07.2025 18:00 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
Preview
Linking neuron-axon-synapse architecture to white matter vasculature using high-resolution multimodal MRI in primate brain Abstract. Blood vessels and axons align outside the brain due to shared growth factors. However, this neuron-axon-synapse and vessel relationship within the brain white matter remains unclear, primari...

direct.mit.edu/imag/article...

18.07.2025 14:44 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Energy expenditure and obesity across the economic spectrum | PNAS Global economic development has been associated with an increased prevalence of obesity and related health problems. Increased caloric intake and r...

On the root cause of global obesity
www.pnas.org/doi/suppl/10...
www.science.org/content/arti...
www.washingtonpost.com/wellness/202...

15.07.2025 13:54 β€” πŸ‘ 82    πŸ” 13    πŸ’¬ 3    πŸ“Œ 3
Preview
Food Intelligence by Julia Belluz, Kevin Hall, PhD: 9780593332306 | PenguinRandomHouse.com: Books The essential guide for understanding what you’re eating, and the forces that are driving you to eat it. Nutrition isn’t rocket science; it’s harder. There are new diet fads, bold...

Excited to announce my new book FOOD INTELLIGENCE coauthored with brilliant journalist @juliabelluz.bsky.social‬! Cutting through the confusion about diet & health, #FoodIntelligence describes the fascinating science of how food both nourishes & harms us. www.penguinrandomhouse.com/books/671334...

16.07.2025 09:53 β€” πŸ‘ 62    πŸ” 19    πŸ’¬ 10    πŸ“Œ 4
Post image

Hi everyone! Blue Sky seems alright!
Check out our massive new review on Coenzyme Q that earned the cover πŸ˜‰.

29.11.2024 14:46 β€” πŸ‘ 44    πŸ” 8    πŸ’¬ 1    πŸ“Œ 0

ENIGMA is a tremendous achievement ! Congratulations @ptenigma.bsky.social

26.06.2025 21:14 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
Post image

New paper in Imaging Neuroscience by Stephen M. Smith, Karla L. Miller, and Thomas E. Nichols:

Characterising ongoing brain aging and baseline effects from cross-sectional data

doi.org/10.1162/IMAG...

24.06.2025 20:28 β€” πŸ‘ 7    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Does the carbon footprint calculation include travel to hackathons?

23.06.2025 19:09 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

In sum, we use genetics to uncover three different facets of impulsivity, each with different genetic and neurodevelopmental associations. Further deciphering the complicated interplay of genetics and environment is an exciting future direction⭐

16.06.2025 18:23 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

Finally, we found that each brain measure has a different ratio of genetic vs environmental influences. For example, cortical thickness was better captured by impulsivity PGSs, but surface area was more environmental.

16.06.2025 18:23 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image

Next: how does environment come into play? We found that Area Deprivation Index modulates the relationship between lack of self-control PGS and white matter. Lower ADI amplified the effect of genetic risk on WM development.

16.06.2025 18:23 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image

We also tested longitudinal changes in brain anatomy! Lack of self-control PGS was mostly related to slower development of white matter.

16.06.2025 18:23 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image

We then asked how the polygenic score for each latent factor manifested in the brain using ABCD (9-11 yrs, N>4,000). Lack of self-control: reduced prefrontal GM; reward drive: increased cellularity in subcortical nuclei; sensation seeking: increased surface area and white matter FA.

16.06.2025 18:23 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

@alaindagher is following 20 prominent accounts