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Whitney Griggs

@whitneygriggs

Neurosurgeon-scientist in training at University of Chicago. MD-PhD from UCLA-Caltech. Developed an ultrasonic brain-machine interface @caltech.edu

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29.11.2024
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Latest posts by Whitney Griggs @whitneygriggs

7/✨ Finally, a shout-out to a fantastic collaboration with @sumnerln.bsky.social, @mickaeltanter.bsky.social (INSERM), C. Liu & @vchristopoulos.bsky.social (USC), @mikhailshapiro.bsky.social & R. Andersen (@caltech.edu).

Thankful to have had a small part in building the future of ultrasonic BMIs!

04.10.2025 15:28 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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6/ This project started before COVID and demonstrates the power of turning 🦠bugs into features. The unplanned long spacing between recording sessions demonstrated decoder stability across >2 years WITHOUT retraining, a major boon for future BCI applications.

04.10.2025 15:28 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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5/ πŸ” These mesoscopic patches enable robust decoding of multiple movement directions! To confirm this, we coded a cortical-based searchlight analysis for fUSI data that reveals the neurovasculature most important for decoding performance.

04.10.2025 15:28 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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4/ πŸ” Small mesoscopic (~100-400 ΞΌm) patches of lateral intraparietal cortex (LIP) robustly encode for different movement directions, with >10-20% changes in the underlying neurovasculature!

04.10.2025 15:28 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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3/ πŸ” This latest paper showcases how functional ultrasound imaging (fUSI) can capture intricate brain activity with high resolution. It offer insights into how the brain orchestrates eye movements, critical for understanding sensory and motor integration.

04.10.2025 15:28 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Functional ultrasound neuroimaging reveals mesoscopic organization of saccades in the lateral intraparietal area - Nature Communications The functional organization of the posterior parietal cortex (PPC) for guiding eye movements has remained unknown. Here, the authors use functional ultrasound neuroimaging to reveal small, tuned clusters in PPC that reliably encode where we look over months to years.

2/ Read the paper here: www.nature.com/articles/s41...

04.10.2025 15:28 πŸ‘ 4 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

🧠Excited to share our latest ultrasound & neurotech paper @natureportfolio.nature.com

🦾 Our previous papers demonstrated the HOW of an ultrasonic brain-machine interface in monkeys and humans. This paper highlights WHY it works.

04.10.2025 15:28 πŸ‘ 11 πŸ” 3 πŸ’¬ 2 πŸ“Œ 1
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🚨 Two Postdoctoral Fellows in Ultrasound Neuromodulation and Neuroimaging! 🚨

Supervised by @EFouragnan at @PlymUni. If you're an expert in MRI, fMRI, MRS, DTI, or TUS -- we want to hear from you!

πŸ”— Links below πŸ‘‡

23.02.2025 19:03 πŸ‘ 4 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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The Caltech and JPL Disaster Relief Fund

Hundreds of Caltech and Caltech/Nasa Jet Propulsion Lab scientists, professors, and students have lost their homes in the LA fires.

The Disaster Relief Fund is organized to help. Please share.
giving.caltech.edu/areas-to-sup...

11.01.2025 20:35 πŸ‘ 7 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0

Congrats to the entire team! Excited to read this paper after seeing some of the early data at lab meetings 1.5 years ago!

24.12.2024 00:04 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Improving Brain–Machine Interfaces with Machine Learning Through machine learning, Caltech researchers have improved the performance and lifetime of implants for brain–machine interfaces.

Congrats to two of the Forest Neurotech team, Tyson Aflalo and Charles Guan on publishing their work from Caltech in Nature Biomedical Engineering!

"Improving Brain–Machine Interfaces with Machine Learning" 🧠⚑️

www.caltech.edu/about/news/i...

09.12.2024 20:05 πŸ‘ 13 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0

We're also hiring Electrical Engineers!

Specifically, we're looking someone to lead the definition and design of the digital and embedded system architecture in our ultrasound neurotechnology platform.

Please share!

forestneurotech.org/jobs

07.12.2024 02:13 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Jobs β€” Forest Neurotech Forest Neurotech

πŸš€ We’re hiring! Forest Neurotech is looking for a Software Engineering Lead to build the core systems powering our ultrasound neurotech platform.

As a nonprofit FRO, we're advancing science for public good. If you’re excited about neurotech & impact let’s talk. 🌍🧠

forestneurotech.org/jobs

03.12.2024 21:12 πŸ‘ 27 πŸ” 14 πŸ’¬ 2 πŸ“Œ 3