Is spatial navigation innate 🧠? Using #NeuroPixels we show that the #torus 🍩 underlying the #GridCell map exists already on day 10 in rats — before pups open eyes and ears and before they start upright walking. 🧵1:4
👇
www.biorxiv.org/content/10.6...
👇
www.biorxiv.org/content/10.6...
www.biorxiv.org
March 11, 2026 at 10:35 AM
Is spatial navigation innate 🧠? Using #NeuroPixels we show that the #torus 🍩 underlying the #GridCell map exists already on day 10 in rats — before pups open eyes and ears and before they start upright walking. 🧵1:4
👇
www.biorxiv.org/content/10.6...
👇
www.biorxiv.org/content/10.6...
Warm congrats to @matteoguardamagna.bsky.social, selected for the @sainsburywellcome.bsky.social Emerging Neuroscientists Seminar Series 2026/27 🎆
On November 26 he’s in London asking where our sense of space comes from and what 🍩-shaped #gridcell networks are already doing before we ever explore
On November 26 he’s in London asking where our sense of space comes from and what 🍩-shaped #gridcell networks are already doing before we ever explore
Congratulations to the winners of the SWC Emerging Neuroscientists Seminar Series 2026/27! 🎉
• Lucas Tian, Rockefeller University
• @matteoguardamagna.bsky.social, Kavli Institute for Systems Neuroscience
• @albarran.bsky.social, Columbia University
• Krithika Mohan, University of California
• Lucas Tian, Rockefeller University
• @matteoguardamagna.bsky.social, Kavli Institute for Systems Neuroscience
• @albarran.bsky.social, Columbia University
• Krithika Mohan, University of California
Emerging Neuroscientists Seminar Series 2026/27 winners announced | Sainsbury Wellcome Centre
The Sainsbury Wellcome Centre is delighted to announce the winners of our 2026/27 Emerging Neuroscientists Seminar Series (ENSS). The prestigious ENSS competition spotlights aspiring leaders who are a...
www.sainsburywellcome.org
August 13, 2026 at 6:23 PM
Warm congrats to @matteoguardamagna.bsky.social, selected for the @sainsburywellcome.bsky.social Emerging Neuroscientists Seminar Series 2026/27 🎆
On November 26 he’s in London asking where our sense of space comes from and what 🍩-shaped #gridcell networks are already doing before we ever explore
On November 26 he’s in London asking where our sense of space comes from and what 🍩-shaped #gridcell networks are already doing before we ever explore
[role=grid] grid-template-columns: 40px 141px 180px 120px 120px 150px 100px 80px 60px
[role=rowgroup] grid-template-columns: subgrid ← level 1
[role=row] grid-template-columns: subgrid ← level 2, Safari loses the tracks here
[role=gridcell]
[role=rowgroup] grid-template-columns: subgrid ← level 1
[role=row] grid-template-columns: subgrid ← level 2, Safari loses the tracks here
[role=gridcell]
September 25, 2026 at 7:10 PM
[role=grid] grid-template-columns: 40px 141px 180px 120px 120px 150px 100px 80px 60px
[role=rowgroup] grid-template-columns: subgrid ← level 1
[role=row] grid-template-columns: subgrid ← level 2, Safari loses the tracks here
[role=gridcell]
[role=rowgroup] grid-template-columns: subgrid ← level 1
[role=row] grid-template-columns: subgrid ← level 2, Safari loses the tracks here
[role=gridcell]
The folks at Reason attempted to create a version where they use gridcell level uncertainties to estimate the number of all time hot records set over time rather than simply plotting the date of records as recorded.
April 29, 2026 at 12:48 AM
The folks at Reason attempted to create a version where they use gridcell level uncertainties to estimate the number of all time hot records set over time rather than simply plotting the date of records as recorded.
However, gridcell level uncertainties are just that – uncertainties associated with spatial sampling, instrument changes, time of observation changes, etc. To randomly sample from that uncertainty and assume that the upper bound represents actual local heat records is unrealistic.
April 29, 2026 at 12:48 AM
However, gridcell level uncertainties are just that – uncertainties associated with spatial sampling, instrument changes, time of observation changes, etc. To randomly sample from that uncertainty and assume that the upper bound represents actual local heat records is unrealistic.
Sunday update. I mostly "polished" existing things, e.g. mouse cursor changes, tool tips, production display.
Also, I increased the building and gridcell size from 1 to 2 m to have more freedom with the navmesh.
Next step, is implementing the housing again.
#indiegames #gamdev #indiedev
Also, I increased the building and gridcell size from 1 to 2 m to have more freedom with the navmesh.
Next step, is implementing the housing again.
#indiegames #gamdev #indiedev
April 27, 2025 at 1:48 PM
Sunday update. I mostly "polished" existing things, e.g. mouse cursor changes, tool tips, production display.
Also, I increased the building and gridcell size from 1 to 2 m to have more freedom with the navmesh.
Next step, is implementing the housing again.
#indiegames #gamdev #indiedev
Also, I increased the building and gridcell size from 1 to 2 m to have more freedom with the navmesh.
Next step, is implementing the housing again.
#indiegames #gamdev #indiedev
Awesome work by @matteoguardamagna.bsky.social et al: The geometry of the #gridcell system seems to come online before #behavior does. Toroidal #manifolds in #rat #MEC appear at P10, align progressively with real space only after pups begin to explore. Strong case for preconfigured spatial circuits!
1/7 🧠 My journey into development begins with this work and question: how does the brain's spatial navigation system develop? We found that the neural networks for spatial navigation (tori and rings) are preconfigured and only later anchor gradually to the world with experience! 🧵
March 11, 2026 at 9:54 PM
Awesome work by @matteoguardamagna.bsky.social et al: The geometry of the #gridcell system seems to come online before #behavior does. Toroidal #manifolds in #rat #MEC appear at P10, align progressively with real space only after pups begin to explore. Strong case for preconfigured spatial circuits!
I've said it before, but I LOOOVE debug lines.
Refactored the content spawning systems in my game (cities, bandit camps, resource zones, and other POIs) so that they use a shared gridcell system with layers
Now I can debug it to see cells in use and buffers
#indiegame #gamedev #indiedev #solodev
Refactored the content spawning systems in my game (cities, bandit camps, resource zones, and other POIs) so that they use a shared gridcell system with layers
Now I can debug it to see cells in use and buffers
#indiegame #gamedev #indiedev #solodev
September 28, 2025 at 11:13 AM
I've said it before, but I LOOOVE debug lines.
Refactored the content spawning systems in my game (cities, bandit camps, resource zones, and other POIs) so that they use a shared gridcell system with layers
Now I can debug it to see cells in use and buffers
#indiegame #gamedev #indiedev #solodev
Refactored the content spawning systems in my game (cities, bandit camps, resource zones, and other POIs) so that they use a shared gridcell system with layers
Now I can debug it to see cells in use and buffers
#indiegame #gamedev #indiedev #solodev
I've just started working on something to strike the middle ground between DEC-like models (region-based, ignores many processes and interactions, fast) and Gen3sis-like models (gridcell based, allows complex interactions, slow). But its still a way off at this point!
October 29, 2025 at 7:54 PM
I've just started working on something to strike the middle ground between DEC-like models (region-based, ignores many processes and interactions, fast) and Gen3sis-like models (gridcell based, allows complex interactions, slow). But its still a way off at this point!
Here's a GFS oper 06Z timeseries for the gridcell at Maldegen (just east of Bruges, Belgium). The latent heat flux completely collapses, and very fast. All while the lowest layer stays relatively wet (even above the start of wilting; >~50% rel soil moisture).
June 18, 2025 at 1:02 PM
Here's a GFS oper 06Z timeseries for the gridcell at Maldegen (just east of Bruges, Belgium). The latent heat flux completely collapses, and very fast. All while the lowest layer stays relatively wet (even above the start of wilting; >~50% rel soil moisture).
The #Moser researchers recorded thousands of #GridCell neurons in rat pups with #Neuropixels.
They found that key navigation network-activity structures - grid cell torus map 🍩 & head direction ring ⭕️ - emerge days before pups open their eyes, ears or start walking. (2:5)
They found that key navigation network-activity structures - grid cell torus map 🍩 & head direction ring ⭕️ - emerge days before pups open their eyes, ears or start walking. (2:5)
March 11, 2026 at 11:17 AM
The #Moser researchers recorded thousands of #GridCell neurons in rat pups with #Neuropixels.
They found that key navigation network-activity structures - grid cell torus map 🍩 & head direction ring ⭕️ - emerge days before pups open their eyes, ears or start walking. (2:5)
They found that key navigation network-activity structures - grid cell torus map 🍩 & head direction ring ⭕️ - emerge days before pups open their eyes, ears or start walking. (2:5)
🦖 Element: ariaColSpan property 🦖
https://developer.mozilla.org/en-US/docs/Web/API/Element/ariaColSpan
The ariaColSpan property of the Element interface reflects the value of the aria-colspan attribute, which defines the number of columns spanned by a cell or gridcell within a table, gr…
#webdev
https://developer.mozilla.org/en-US/docs/Web/API/Element/ariaColSpan
The ariaColSpan property of the Element interface reflects the value of the aria-colspan attribute, which defines the number of columns spanned by a cell or gridcell within a table, gr…
#webdev
Element: ariaColSpan property
The ariaColSpan property of the Element interface reflects the value of the aria-colspan attribute, which defines the number of columns spanned by a cell or gridcell within a table, gr…
developer.mozilla.org
September 2, 2026 at 3:40 AM
🦖 Element: ariaColSpan property 🦖
https://developer.mozilla.org/en-US/docs/Web/API/Element/ariaColSpan
The ariaColSpan property of the Element interface reflects the value of the aria-colspan attribute, which defines the number of columns spanned by a cell or gridcell within a table, gr…
#webdev
https://developer.mozilla.org/en-US/docs/Web/API/Element/ariaColSpan
The ariaColSpan property of the Element interface reflects the value of the aria-colspan attribute, which defines the number of columns spanned by a cell or gridcell within a table, gr…
#webdev
an issue just got labeled #goodfirstissue for adobe/react-spectrum #TypeScript
Card View Accessibility: ARIA role gridcell is not allowed for given element
Card View Accessibility: ARIA role gridcell is not allowed for given element
Card View Accessibility: ARIA role gridcell is not allowed for given element
Provide a general summary of the issue here In Card View alpha version 3.0.0-alpha.28, while testing the a11y issues in axeDevtools extension, we have observed the following issue. Repeated for eac...
github.com
May 15, 2024 at 2:51 AM
an issue just got labeled #goodfirstissue for adobe/react-spectrum #TypeScript
Card View Accessibility: ARIA role gridcell is not allowed for given element
Card View Accessibility: ARIA role gridcell is not allowed for given element
As for grabbing the GridCell child component position values to use them in the App parent component to check if those grid boxes were selected by the selection box, I just had to add unique identifiers to each grid box, and use them to assign their respective coordinates.
June 30, 2025 at 8:35 PM
As for grabbing the GridCell child component position values to use them in the App parent component to check if those grid boxes were selected by the selection box, I just had to add unique identifiers to each grid box, and use them to assign their respective coordinates.
So I've actually got 2 issues.
The code that was making the water not touch the land and therefore giving swamps/etc depth, doesn't work anymore.
Additionally, it causes a graphical bug on shorelines in certain areas.
The code is literally
if gridCell >= beach{do shoreline stuff}
else if swamp{}
The code that was making the water not touch the land and therefore giving swamps/etc depth, doesn't work anymore.
Additionally, it causes a graphical bug on shorelines in certain areas.
The code is literally
if gridCell >= beach{do shoreline stuff}
else if swamp{}
March 16, 2025 at 9:06 AM
So I've actually got 2 issues.
The code that was making the water not touch the land and therefore giving swamps/etc depth, doesn't work anymore.
Additionally, it causes a graphical bug on shorelines in certain areas.
The code is literally
if gridCell >= beach{do shoreline stuff}
else if swamp{}
The code that was making the water not touch the land and therefore giving swamps/etc depth, doesn't work anymore.
Additionally, it causes a graphical bug on shorelines in certain areas.
The code is literally
if gridCell >= beach{do shoreline stuff}
else if swamp{}
Restoring beef pastures in the orange/red areas to forest could sequester 125 Gt of CO2 by the end of the century: 37% of the total carbon opportunity cost of global beef pastures, at a loss of only 13% of global beef production. The shortfall could be offset by improved FCRs elsewhere
November 5, 2024 at 9:59 AM
Restoring beef pastures in the orange/red areas to forest could sequester 125 Gt of CO2 by the end of the century: 37% of the total carbon opportunity cost of global beef pastures, at a loss of only 13% of global beef production. The shortfall could be offset by improved FCRs elsewhere
It does sound a bit like that haha. Sorry, did a quick programming doodle because I felt like it (you can move your mouse in the canvas on the right and extend the panel a bit so you can see the coordinates below the canvas): jsfiddle.net/r9fybunm/1/
But if you solved it anyways, that's great!
But if you solved it anyways, that's great!
February 1, 2026 at 10:29 PM
It does sound a bit like that haha. Sorry, did a quick programming doodle because I felt like it (you can move your mouse in the canvas on the right and extend the panel a bit so you can see the coordinates below the canvas): jsfiddle.net/r9fybunm/1/
But if you solved it anyways, that's great!
But if you solved it anyways, that's great!
NL West:
The #Diamondbacks win the NL West title with a trend of 0.6°F per decade, the highest warming rate in the entire MLB, according to the ERA5 data. Meanwhile, the #Giants saw the lowest warming rate of any MLB team and come in at the bottom of the NL West.
The #Diamondbacks win the NL West title with a trend of 0.6°F per decade, the highest warming rate in the entire MLB, according to the ERA5 data. Meanwhile, the #Giants saw the lowest warming rate of any MLB team and come in at the bottom of the NL West.
March 27, 2025 at 2:15 PM
NL West:
The #Diamondbacks win the NL West title with a trend of 0.6°F per decade, the highest warming rate in the entire MLB, according to the ERA5 data. Meanwhile, the #Giants saw the lowest warming rate of any MLB team and come in at the bottom of the NL West.
The #Diamondbacks win the NL West title with a trend of 0.6°F per decade, the highest warming rate in the entire MLB, according to the ERA5 data. Meanwhile, the #Giants saw the lowest warming rate of any MLB team and come in at the bottom of the NL West.
an issue just got labeled #goodfirstissue for adobe/react-spectrum #TypeScript
Card View Accessibility: ARIA role gridcell is not allowed for given element
Card View Accessibility: ARIA role gridcell is not allowed for given element
Card View Accessibility: ARIA role gridcell is not allowed for given element
Provide a general summary of the issue here In Card View alpha version 3.0.0-alpha.28, while testing the a11y issues in axeDevtools extension, we have observed the following issue. Repeated for eac...
github.com
May 15, 2024 at 2:51 AM
an issue just got labeled #goodfirstissue for adobe/react-spectrum #TypeScript
Card View Accessibility: ARIA role gridcell is not allowed for given element
Card View Accessibility: ARIA role gridcell is not allowed for given element
Should the 'row' role really be necessary for parents of 'gridcell' and other cell role elements?
#ARIA #WebStandards #a11y #Nerdvana
github.com/w3c/aria/iss...
#ARIA #WebStandards #a11y #Nerdvana
github.com/w3c/aria/iss...
Should the 'row' role really be necessary for parents of 'gridcell' and other cell role elements? · Issue #2402 · w3c/aria
Discussed in #2128 Originally posted by turjmner8 February 22, 2024 In general, would it be possible to remove the requirement for role 'gridcell' elements to be contained within role 'row' element...
github.com
April 7, 2025 at 5:17 PM
Should the 'row' role really be necessary for parents of 'gridcell' and other cell role elements?
#ARIA #WebStandards #a11y #Nerdvana
github.com/w3c/aria/iss...
#ARIA #WebStandards #a11y #Nerdvana
github.com/w3c/aria/iss...
Quick & dirty analysis: nearest land gridcell to Portland OR, CMIP5 RCP4.5 ann. max txx, 47 member, bias correct to 1850-1950 obs. Empirical non-stationary EV analysis from CMIP by shifting the smoothed 95th percentile s.t. ensemble exceedance matches return freq. over 250 yrs.
November 12, 2024 at 7:38 AM
Quick & dirty analysis: nearest land gridcell to Portland OR, CMIP5 RCP4.5 ann. max txx, 47 member, bias correct to 1850-1950 obs. Empirical non-stationary EV analysis from CMIP by shifting the smoothed 95th percentile s.t. ensemble exceedance matches return freq. over 250 yrs.
🦖 Random MDN: Element: ariaInvalid property 🦖
https://developer.mozilla.org/en-US/docs/Web/API/Element/ariaInvalid
The ariaInvalid property of the Element interface reflects the value of the aria-invalid attribute. Relevant for the application, checkbox, combobox, gridcell, listbox, rad…
#webdev
https://developer.mozilla.org/en-US/docs/Web/API/Element/ariaInvalid
The ariaInvalid property of the Element interface reflects the value of the aria-invalid attribute. Relevant for the application, checkbox, combobox, gridcell, listbox, rad…
#webdev
Element: ariaInvalid property
The ariaInvalid property of the Element interface reflects the value of the aria-invalid attribute. Relevant for the application, checkbox, combobox, gridcell, listbox, rad…
developer.mozilla.org
January 22, 2026 at 6:36 PM
🦖 Random MDN: Element: ariaInvalid property 🦖
https://developer.mozilla.org/en-US/docs/Web/API/Element/ariaInvalid
The ariaInvalid property of the Element interface reflects the value of the aria-invalid attribute. Relevant for the application, checkbox, combobox, gridcell, listbox, rad…
#webdev
https://developer.mozilla.org/en-US/docs/Web/API/Element/ariaInvalid
The ariaInvalid property of the Element interface reflects the value of the aria-invalid attribute. Relevant for the application, checkbox, combobox, gridcell, listbox, rad…
#webdev
Yeah. Checks don’t get rid of all outliers. Future versions of DCENT will include uncertainty information so each gridcell can be weighted appropriately.
September 7, 2024 at 9:40 PM
Yeah. Checks don’t get rid of all outliers. Future versions of DCENT will include uncertainty information so each gridcell can be weighted appropriately.
NL East:
The NL East Pennant is a tie between the #Phillies and #Nationals. Unfortunately, the Phils win the tie breaker of difference between the first and last decade by 0.04 degrees. The #Marlins end up in last place with the lowest warming rate in the division.
The NL East Pennant is a tie between the #Phillies and #Nationals. Unfortunately, the Phils win the tie breaker of difference between the first and last decade by 0.04 degrees. The #Marlins end up in last place with the lowest warming rate in the division.
March 27, 2025 at 2:15 PM
NL East:
The NL East Pennant is a tie between the #Phillies and #Nationals. Unfortunately, the Phils win the tie breaker of difference between the first and last decade by 0.04 degrees. The #Marlins end up in last place with the lowest warming rate in the division.
The NL East Pennant is a tie between the #Phillies and #Nationals. Unfortunately, the Phils win the tie breaker of difference between the first and last decade by 0.04 degrees. The #Marlins end up in last place with the lowest warming rate in the division.
NL Central:
The #Pirates take the NL Central Pennant in this hypothetical with a warming rate of 0.43°F per decade. The #Cardinals saw the least warming, again due to a hot start to the 50s in the ERA5 dataset. The #Cubs, #Reds, and #Brewers are all neck and neck in terms of warming rate.
The #Pirates take the NL Central Pennant in this hypothetical with a warming rate of 0.43°F per decade. The #Cardinals saw the least warming, again due to a hot start to the 50s in the ERA5 dataset. The #Cubs, #Reds, and #Brewers are all neck and neck in terms of warming rate.
March 27, 2025 at 2:15 PM
NL Central:
The #Pirates take the NL Central Pennant in this hypothetical with a warming rate of 0.43°F per decade. The #Cardinals saw the least warming, again due to a hot start to the 50s in the ERA5 dataset. The #Cubs, #Reds, and #Brewers are all neck and neck in terms of warming rate.
The #Pirates take the NL Central Pennant in this hypothetical with a warming rate of 0.43°F per decade. The #Cardinals saw the least warming, again due to a hot start to the 50s in the ERA5 dataset. The #Cubs, #Reds, and #Brewers are all neck and neck in terms of warming rate.