John Anderson 🇨🇦
@janderz8.bsky.social
I’m an Assistant Professor at Carleton University in the department of Cognitive Science, interested in aging, bilingualism, cognition and cognitive/brain reserve/compensation, neuroimaging, multivariate stats, R, methods, and visualizations
Original plotting was with easytopo, but it’s easy enough to replot using surfice.
May 21, 2025 at 8:38 PM
Original plotting was with easytopo, but it’s easy enough to replot using surfice.
…And of course an excellent talk by Undergraduate thesis student Veronica Cramm on controlling for scan quality using propensity score matching
April 11, 2025 at 1:03 AM
…And of course an excellent talk by Undergraduate thesis student Veronica Cramm on controlling for scan quality using propensity score matching
Well done to members of the CANAL lab! Fantastic representation at Carleton’s Cognitive Science Student Conference @carleton-cogsci.bsky.social , @carletonfass.bsky.social
April 11, 2025 at 12:07 AM
Well done to members of the CANAL lab! Fantastic representation at Carleton’s Cognitive Science Student Conference @carleton-cogsci.bsky.social , @carletonfass.bsky.social
🧠 Surprising result: cortical thickness increased over time in AD—opposite to what we expected!
This may reflect neuroplasticity, inflammation, or a compensatory response.
Similar unexpected effects were seen in gyrification & curvature.
[5/]
This may reflect neuroplasticity, inflammation, or a compensatory response.
Similar unexpected effects were seen in gyrification & curvature.
[5/]
April 8, 2025 at 6:26 PM
🧠 Surprising result: cortical thickness increased over time in AD—opposite to what we expected!
This may reflect neuroplasticity, inflammation, or a compensatory response.
Similar unexpected effects were seen in gyrification & curvature.
[5/]
This may reflect neuroplasticity, inflammation, or a compensatory response.
Similar unexpected effects were seen in gyrification & curvature.
[5/]
✅ Using HippUnfold on 4,617 MRI timepoints from the ADNI dataset, we tracked SBM and volume changes in CA1–CA4, DG, subiculum, and SRLM.
We modeled how these changes relate to stable and progressive cognitive decline.
[3/]
We modeled how these changes relate to stable and progressive cognitive decline.
[3/]
April 8, 2025 at 6:26 PM
✅ Using HippUnfold on 4,617 MRI timepoints from the ADNI dataset, we tracked SBM and volume changes in CA1–CA4, DG, subiculum, and SRLM.
We modeled how these changes relate to stable and progressive cognitive decline.
[3/]
We modeled how these changes relate to stable and progressive cognitive decline.
[3/]
✨The result? FOUR distinct, data-driven groups emerged.
And they told a story: a smooth gradient from healthy brains to advanced dementia.
🧠➡️🧠➡️🧠➡️🧠
And they told a story: a smooth gradient from healthy brains to advanced dementia.
🧠➡️🧠➡️🧠➡️🧠
April 5, 2025 at 6:49 PM
✨The result? FOUR distinct, data-driven groups emerged.
And they told a story: a smooth gradient from healthy brains to advanced dementia.
🧠➡️🧠➡️🧠➡️🧠
And they told a story: a smooth gradient from healthy brains to advanced dementia.
🧠➡️🧠➡️🧠➡️🧠
We used Similarity Network Fusion (SNF) to cluster 515 older adults based on both brain imaging and cognitive data.
🧠 MRI: cortical thickness, volume, surface area
🧪 Cognitive: MMSE, MoCA, ADAS-Cog, CDR
We weren’t looking for labels. Just patterns. 📊
🧠 MRI: cortical thickness, volume, surface area
🧪 Cognitive: MMSE, MoCA, ADAS-Cog, CDR
We weren’t looking for labels. Just patterns. 📊
April 5, 2025 at 6:49 PM
We used Similarity Network Fusion (SNF) to cluster 515 older adults based on both brain imaging and cognitive data.
🧠 MRI: cortical thickness, volume, surface area
🧪 Cognitive: MMSE, MoCA, ADAS-Cog, CDR
We weren’t looking for labels. Just patterns. 📊
🧠 MRI: cortical thickness, volume, surface area
🧪 Cognitive: MMSE, MoCA, ADAS-Cog, CDR
We weren’t looking for labels. Just patterns. 📊
2) Most studies display their cool neuroimaging findings on a standard template—this is awesome because it allows us to use software like overlay on Mac to trace the statistically significant regions onto a standard template such as the MNI. Hey Presto, we have coordinates!
December 8, 2024 at 4:07 PM
2) Most studies display their cool neuroimaging findings on a standard template—this is awesome because it allows us to use software like overlay on Mac to trace the statistically significant regions onto a standard template such as the MNI. Hey Presto, we have coordinates!
1) I'd like to draw attention to, what I think, is a really cool finding! Recently I ran a meta-analysis looking at how #bilingualism affects the white matter of the brain. We found that bilingualism is selectively associated with higher fractional anisitropy in ...
ars.els-cdn.com/content/imag...
ars.els-cdn.com/content/imag...
December 8, 2024 at 2:40 PM
1) I'd like to draw attention to, what I think, is a really cool finding! Recently I ran a meta-analysis looking at how #bilingualism affects the white matter of the brain. We found that bilingualism is selectively associated with higher fractional anisitropy in ...
ars.els-cdn.com/content/imag...
ars.els-cdn.com/content/imag...
December 7, 2024 at 2:36 AM
Bluesky now has over 10 million users, and I was #397,973, that’s pretty cool
September 19, 2024 at 10:34 AM
Bluesky now has over 10 million users, and I was #397,973, that’s pretty cool
In younger adults, which isn’t news. I wasn’t aware people were still searching for bilingual advantages in younger adults. The use of continuous measures is nice, but I want to know more about the decisions that lead to their model construction, also, there’s an ANTS task that’s not reported.
February 18, 2024 at 1:50 PM
In younger adults, which isn’t news. I wasn’t aware people were still searching for bilingual advantages in younger adults. The use of continuous measures is nice, but I want to know more about the decisions that lead to their model construction, also, there’s an ANTS task that’s not reported.
ChatGPT definitely has copyright issues. The focus has mostly been on text, but I’ve seen other people get it to produce SpongeBob SquarePants. I managed to get recognizable Disney content without trying hard…
December 30, 2023 at 10:34 PM
ChatGPT definitely has copyright issues. The focus has mostly been on text, but I’ve seen other people get it to produce SpongeBob SquarePants. I managed to get recognizable Disney content without trying hard…
Has anyone successfully removed motion post hoc from T1 weighted scans using machine learning? I’ve seen a few approaches including this one https://www.sciencedirect.com/science/article/abs/pii/S0720048X2030574X, but I’m not sure how widely used or accepted these approaches are
November 26, 2023 at 10:38 PM
Has anyone successfully removed motion post hoc from T1 weighted scans using machine learning? I’ve seen a few approaches including this one https://www.sciencedirect.com/science/article/abs/pii/S0720048X2030574X, but I’m not sure how widely used or accepted these approaches are
Have people encountered issues with trying to run multivariate analyses on fMRI data post ICA denoising? The PLS results my student is getting seem way too sparse. Could this data be over processed? @ar0mcintosh.bsky.social, @russpoldrack.bsky.social #neuroskyence
October 6, 2023 at 8:29 PM
Have people encountered issues with trying to run multivariate analyses on fMRI data post ICA denoising? The PLS results my student is getting seem way too sparse. Could this data be over processed? @ar0mcintosh.bsky.social, @russpoldrack.bsky.social #neuroskyence
Cool, here’s my PubMed wordcloud
September 24, 2023 at 6:01 PM
Cool, here’s my PubMed wordcloud
