Xavier Guell(@xavier_guell) 's Twitter Profileg
Xavier Guell

@xavier_guell

Movement disorders fellow at NYU; former Neurology resident at Harvard Medical School, research fellow at MIT. Read my science: https://t.co/MrjUbMBadz

ID:870999110396063745

calendar_today03-06-2017 13:42:25

299 Tweets

274 Followers

237 Following

Schmahmann Lab(@SchmahmannLab) 's Twitter Profile Photo

Diagnosing MSA-C is challenging. We solved this using MRI. In a 20 year study we show that ~ 0.8 mm/year atrophy of pons and middle cerebellar peduncle diameter is diagnostic. True throughout the disease course. ⁦@MSACoalition⁩ ⁦National Ataxia Foundation
doi.org/10.1093/brainc…

Diagnosing MSA-C is challenging. We solved this using MRI. In a 20 year study we show that ~ 0.8 mm/year atrophy of pons and middle cerebellar peduncle diameter is diagnostic. True throughout the disease course. ⁦@MSACoalition⁩ ⁦@NAF_Ataxia⁩ doi.org/10.1093/brainc…
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Ash Jogalekar(@curiouswavefn) 's Twitter Profile Photo

1/n: There are some academic papers that are so brilliantly and so accessibly written and so universal in scope that they transcend disciplines and stand as timeless testaments to both great thinking and great writing. Here's a short personal selection:

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Hadi Vafaii(@hadivafaii) 's Twitter Profile Photo

Ever wondered how closely brain networks reflect a neural underpinning❓

We address this using simultaneous fMRI & widefield Ca²⁺ imaging in mice, and the answer is… complicated!

👉🧵[1/n]

Jointly supervised by Evelyn & Luiz Pessoa

nature.com/articles/s4146…

Ever wondered how closely #fMRI brain networks reflect a neural underpinning❓ We address this using simultaneous fMRI & widefield Ca²⁺ imaging in mice, and the answer is… complicated! 👉🧵[1/n] Jointly supervised by @EvelynMRLake & @PessoaBrain nature.com/articles/s4146…
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Hadi Vafaii(@hadivafaii) 's Twitter Profile Photo

We determined the top 4 FC gradients.

We discovered G-1's remarkable consistency across BOLD and Ca²⁺ conditions (r = 0.97), lending fundamental support for its neural origin.

➡️ at a very coarse level, fMRI & Ca²⁺ signals capture the same underlying organization.

🧵[12/n]

We determined the top 4 FC gradients. We discovered G-1's remarkable consistency across BOLD and Ca²⁺ conditions (r = 0.97), lending fundamental support for its neural origin. ➡️ at a very coarse level, fMRI & Ca²⁺ signals capture the same underlying organization. 🧵[12/n]
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WouterSchievink(@WouterSchievink) 's Twitter Profile Photo

Patients with sagging brain syndrome due to loss of spinal CSF often present with compulsive repetitive flexion (at the waist) with breath holding (CoRFBiS). We believe this is pathognomic of the syndrome. ⁦Schmahmann Lab⁩ ⁦spinalCSFleak neurology.org/doi/10.1212/CP…

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Maximilian U. Friedrich(@vertigologist) 's Twitter Profile Photo

Ever wondered if there's more to clinical assessment of movement disorders than our good ol' scores capture?
🧠New research alert!

Ever wondered if there's more to clinical assessment of movement disorders than our good ol' scores capture? 🧠New research alert!
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Tracey Milligan, MD, MS, FAAN, FANA, FAES(@Tracey1milligan) 's Twitter Profile Photo

Harvard Medical School honors
Martin A. Samuels, MD, MACP, FAAN, FANA, FRCP, DSci (hon)
Miriam Sydney Joseph Distinguished
Professor of Neurology
Harvard Medical School
Founding Chair, Department of Neurology
Brigham and Women's Neurology Brigham and Women's Hospital
His legacy lives on in those he taught

@harvardmed honors Martin A. Samuels, MD, MACP, FAAN, FANA, FRCP, DSci (hon) Miriam Sydney Joseph Distinguished Professor of Neurology Harvard Medical School Founding Chair, Department of Neurology @BWHNeurology @BrighamWomens His legacy lives on in those he taught
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Ian Shih(@ShihYYI) 's Twitter Profile Photo

'DMN combines episodic memory, language, and semantic memory processes to generate an ongoing internal narrative and subjective continuity of internal mental thoughts', see new article from our close collaborator Dr. Vinod Menon Stanford Cognitive & Systems Neuroscience Lab: doi.org/10.1016/j.neur…

'DMN combines episodic memory, language, and semantic memory processes to generate an ongoing internal narrative and subjective continuity of internal mental thoughts', see new article from our close collaborator Dr. Vinod Menon @Stanford_CoSyNe: doi.org/10.1016/j.neur…
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Evan Gordon(@gordonneuro) 's Twitter Profile Photo

We’ve identified the somato-cognitive action network (SCAN), a newly recognized network within human primary motor cortex that disrupts the famous—but incorrect—motor homunculus, and has strong connections to high-level control networks. Now out in nature nature.com/articles/s4158…

We’ve identified the somato-cognitive action network (SCAN), a newly recognized network within human primary motor cortex that disrupts the famous—but incorrect—motor homunculus, and has strong connections to high-level control networks. Now out in @Nature nature.com/articles/s4158…
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Michael Okun(@MichaelOkun) 's Twitter Profile Photo

I get this question all the time, 'how will my atypical parkinsonism progess.' This is a a new paper in Brain Looks to me like it is dogma when docs flippantly say 'you have 5 years.' Great read by Street and Rowe and comments on clinical trials.
academic.oup.com/brain/advance-…

I get this question all the time, 'how will my atypical parkinsonism progess.' This is a a new paper in @Brain1878 Looks to me like it is dogma when docs flippantly say 'you have 5 years.' Great read by Street and Rowe and comments on clinical trials. academic.oup.com/brain/advance-…
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Bertrand Thirion(@BertrandThirion) 's Twitter Profile Photo

One contrast per day. characters suffering from mental pain versus physical pain. Task designed from Rebecca Saxe lab. All IBC contrasts available in search.kg.ebrains.eu and neurovault.org/collections/66…

One contrast per day. characters suffering from mental pain versus physical pain. Task designed from @rebecca_saxe lab. All IBC contrasts available in search.kg.ebrains.eu and neurovault.org/collections/66…
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Timothy Daly, PhD(@PhilAlz) 's Twitter Profile Photo

Lecanemab: turning point, or status quo? An ethics perspective in Brain
academic.oup.com/brain/advance-…
to Hardy & Cath Mummery🍊
I cite Alberto J Espay Nicolas Villain Lon S. Schneider, MD Seb Walsh & argue 'belief in the amyloid hypothesis continues to drive priority setting in AD research'

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deiniolb 🍬👉 aisuite.io(@danberridge) 's Twitter Profile Photo

I'm speechless.

Not peer-reviewed yet but a submitted paper.

The 'presented images' were shown to a group of humans. The 'reconstructed images' were the result of an fMRI output to Stable Diffusion.

In other words, literally read people's minds.

Source 👇

I'm speechless. Not peer-reviewed yet but a submitted paper. The 'presented images' were shown to a group of humans. The 'reconstructed images' were the result of an fMRI output to Stable Diffusion. In other words, #stablediffusion literally read people's minds. Source 👇
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Martin Hebart(@martin_hebart) 's Twitter Profile Photo

I'm thrilled that THINGS-data is now online! We provide 3 massive datasets of fMRI, MEG, & behavior in response to up to 1854 objects and >22k images. We hope this will allow studying objects in vision, memory & language with unique semantic breadth! Link: doi.org/10.25452/figsh…

I'm thrilled that THINGS-data is now online! We provide 3 massive datasets of fMRI, MEG, & behavior in response to up to 1854 objects and >22k images. We hope this will allow studying objects in vision, memory & language with unique semantic breadth! Link: doi.org/10.25452/figsh…
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Daniel Gewolb, MD(@daniel_gewolb) 's Twitter Profile Photo

T2/FLAIR: we see atrophy, high signal, and architectural distortion

Secondary signs include ipsilateral atrophy of the mammillary body and fornix as seen in this case

T2/FLAIR: we see atrophy, high signal, and architectural distortion Secondary signs include ipsilateral atrophy of the mammillary body and fornix as seen in this case
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Stephan A Mayer(@stephanamayer) 's Twitter Profile Photo

I am a bit late in pointing out the genius of this paper. It is the neurohospitalist #1 paper of the year

Autoimmune Encephalitis Misdiagnosis in Adults

How often have YOU seen examples of pts getting empiric immunosuppression for misdiagnosed AE? /1

ja.ma/3k7ydkf

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