Ranjith Jaganathan
@ranjith-jaganathan.bsky.social
Cognitive(Neuro)Science Researcher🧠
#NeuroAI
#ComputationalPsychiatry #PrecisionPsychiatry
Topics: visual scene perception, emotional scene processing, visual word recognition, dementia research, #ComputationalNeuroscience, ML & DL, and game theory.
#NeuroAI
#ComputationalPsychiatry #PrecisionPsychiatry
Topics: visual scene perception, emotional scene processing, visual word recognition, dementia research, #ComputationalNeuroscience, ML & DL, and game theory.
Reposted by Ranjith Jaganathan
📢 NEW RESEARCH
The brain’s networks activate in structured cycles.
Led by @matsvanes.bsky.social, a team analysed MEG data from 800+ people. The strength & speed of the cycles was influenced by genetics & associated with factors such as age.
www.psych.ox.ac.uk/news/brain20... in @nature.com Neuro
The brain’s networks activate in structured cycles.
Led by @matsvanes.bsky.social, a team analysed MEG data from 800+ people. The strength & speed of the cycles was influenced by genetics & associated with factors such as age.
www.psych.ox.ac.uk/news/brain20... in @nature.com Neuro
August 27, 2025 at 10:59 AM
📢 NEW RESEARCH
The brain’s networks activate in structured cycles.
Led by @matsvanes.bsky.social, a team analysed MEG data from 800+ people. The strength & speed of the cycles was influenced by genetics & associated with factors such as age.
www.psych.ox.ac.uk/news/brain20... in @nature.com Neuro
The brain’s networks activate in structured cycles.
Led by @matsvanes.bsky.social, a team analysed MEG data from 800+ people. The strength & speed of the cycles was influenced by genetics & associated with factors such as age.
www.psych.ox.ac.uk/news/brain20... in @nature.com Neuro
Reposted by Ranjith Jaganathan
In neuroscience, we often try to understand systems by analyzing their representations — using tools like regression or RSA. But are these analyses biased towards discovering a subset of what a system represents? If you're interested in this question, check out our new commentary! Thread:
![What do representations tell us about a system? Image of a mouse with a scope showing a vector of activity patterns, and a neural network with a vector of unit activity patterns
Common analyses of neural representations: Encoding models (relating activity to task features) drawing of an arrow from a trace saying [on_____on____] to a neuron and spike train. Comparing models via neural predictivity: comparing two neural networks by their R^2 to mouse brain activity. RSA: assessing brain-brain or model-brain correspondence using representational dissimilarity matrices](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:e6ewzleebkdi2y2bxhjxoknt/bafkreiav2io2ska33o4kizf57co5bboqyyfdpnozo2gxsicrfr5l7qzjcq@jpeg)
August 5, 2025 at 2:36 PM
In neuroscience, we often try to understand systems by analyzing their representations — using tools like regression or RSA. But are these analyses biased towards discovering a subset of what a system represents? If you're interested in this question, check out our new commentary! Thread:
Gave this talk some time ago. Touched to know it still resonates with students.
July 20, 2025 at 9:48 PM
Gave this talk some time ago. Touched to know it still resonates with students.
Reposted by Ranjith Jaganathan
Excited to announce the first workshop on CogInterp: Interpreting Cognition in Deep Learning Models @ NeurIPS 2025! 📣
How can we interpret the algorithms and representations underlying complex behavior in deep learning models?
🌐 coginterp.github.io/neurips2025/
1/4
How can we interpret the algorithms and representations underlying complex behavior in deep learning models?
🌐 coginterp.github.io/neurips2025/
1/4
Home
First Workshop on Interpreting Cognition in Deep Learning Models (NeurIPS 2025)
coginterp.github.io
July 16, 2025 at 1:08 PM
Excited to announce the first workshop on CogInterp: Interpreting Cognition in Deep Learning Models @ NeurIPS 2025! 📣
How can we interpret the algorithms and representations underlying complex behavior in deep learning models?
🌐 coginterp.github.io/neurips2025/
1/4
How can we interpret the algorithms and representations underlying complex behavior in deep learning models?
🌐 coginterp.github.io/neurips2025/
1/4
Reposted by Ranjith Jaganathan
Detecting dementia earlier | With $4 million grant, UC Irvine cognitive scientist Aaron Bornstein seeks to develop inexpensive assessment of cognitive ability
@ucirvine.bsky.social @aaronbornstein.bsky.social @uofcalifornia.bsky.social
@ucirvine.bsky.social @aaronbornstein.bsky.social @uofcalifornia.bsky.social
Detecting dementia earlier
With $4 million grant, UC Irvine researcher seeks to develop inexpensive assessment of cognitive ability
news.uci.edu
July 14, 2025 at 5:46 PM
Detecting dementia earlier | With $4 million grant, UC Irvine cognitive scientist Aaron Bornstein seeks to develop inexpensive assessment of cognitive ability
@ucirvine.bsky.social @aaronbornstein.bsky.social @uofcalifornia.bsky.social
@ucirvine.bsky.social @aaronbornstein.bsky.social @uofcalifornia.bsky.social
Reposted by Ranjith Jaganathan
Check out the #KempnerInstitute's presentations at #ICML2025 today!
#AI #NeuroAI #LLMs
🧵Here's a thread of abstracts.
(1/20)
#AI #NeuroAI #LLMs
🧵Here's a thread of abstracts.
(1/20)
July 15, 2025 at 1:31 PM
Check out the #KempnerInstitute's presentations at #ICML2025 today!
#AI #NeuroAI #LLMs
🧵Here's a thread of abstracts.
(1/20)
#AI #NeuroAI #LLMs
🧵Here's a thread of abstracts.
(1/20)
Reposted by Ranjith Jaganathan
Excited to announce the Foundation Models for the Brain and Body workshop at #NeurIPS2025! 🧠📈 🧪
We invite short papers or interactive demos on AI for neural, physiological or behavioral data.
Submit by Aug 22 👉 brainbodyfm-workshop.github.io
We invite short papers or interactive demos on AI for neural, physiological or behavioral data.
Submit by Aug 22 👉 brainbodyfm-workshop.github.io
July 11, 2025 at 5:01 PM
Excited to announce the Foundation Models for the Brain and Body workshop at #NeurIPS2025! 🧠📈 🧪
We invite short papers or interactive demos on AI for neural, physiological or behavioral data.
Submit by Aug 22 👉 brainbodyfm-workshop.github.io
We invite short papers or interactive demos on AI for neural, physiological or behavioral data.
Submit by Aug 22 👉 brainbodyfm-workshop.github.io
A useful resource to learn the breadth of cognitive science
If you haven't been looking recently at the Open Encyclopedia of Cognitive Science (oecs.mit.edu), here's your reminder that we are a free, open access resource for learning about the science of mind.
Today we are launching our new Thematic Collections to organize our growing set of articles!
Today we are launching our new Thematic Collections to organize our growing set of articles!
June 2, 2025 at 11:58 AM
A useful resource to learn the breadth of cognitive science
Reposted by Ranjith Jaganathan
As many of you know, I’ve been fascinated by brain attractor dynamics lately.
Thrilled to share a new preprint on their link to orthogonal neural representations, co-authored with Karl Friston:
arxiv.org/abs/2505.22749
- with implications for both neuroscience & AI!
First in a series - stay tuned!
Thrilled to share a new preprint on their link to orthogonal neural representations, co-authored with Karl Friston:
arxiv.org/abs/2505.22749
- with implications for both neuroscience & AI!
First in a series - stay tuned!
Self-orthogonalizing attractor neural networks emerging from the free energy principle
Attractor dynamics are a hallmark of many complex systems, including the brain. Understanding how such self-organizing dynamics emerge from first principles is crucial for advancing our understanding ...
arxiv.org
May 30, 2025 at 7:14 AM
As many of you know, I’ve been fascinated by brain attractor dynamics lately.
Thrilled to share a new preprint on their link to orthogonal neural representations, co-authored with Karl Friston:
arxiv.org/abs/2505.22749
- with implications for both neuroscience & AI!
First in a series - stay tuned!
Thrilled to share a new preprint on their link to orthogonal neural representations, co-authored with Karl Friston:
arxiv.org/abs/2505.22749
- with implications for both neuroscience & AI!
First in a series - stay tuned!
Reposted by Ranjith Jaganathan
𝗕𝗲𝘆𝗼𝗻𝗱 𝗡𝗲𝘁𝘄𝗼𝗿𝗸𝘀: 𝗧𝗼𝘄𝗮𝗿𝗱 𝗔𝗱𝗮𝗽𝘁𝗶𝘃𝗲 𝗠𝗼𝗱𝗲𝗹𝘀 𝗼𝗳 𝗕𝗶𝗼𝗹𝗼𝗴𝗶𝗰𝗮𝗹 𝗖𝗼𝗺𝗽𝗹𝗲𝘅𝗶𝘁𝘆
How can network science tackle complex biological systems?
Substantially reworked version
Largely conceptual, would be happy to see others fill in details or collaborate if people find it of value
osf.io/preprints/os...
#complexity
How can network science tackle complex biological systems?
Substantially reworked version
Largely conceptual, would be happy to see others fill in details or collaborate if people find it of value
osf.io/preprints/os...
#complexity
April 8, 2025 at 5:55 PM
𝗕𝗲𝘆𝗼𝗻𝗱 𝗡𝗲𝘁𝘄𝗼𝗿𝗸𝘀: 𝗧𝗼𝘄𝗮𝗿𝗱 𝗔𝗱𝗮𝗽𝘁𝗶𝘃𝗲 𝗠𝗼𝗱𝗲𝗹𝘀 𝗼𝗳 𝗕𝗶𝗼𝗹𝗼𝗴𝗶𝗰𝗮𝗹 𝗖𝗼𝗺𝗽𝗹𝗲𝘅𝗶𝘁𝘆
How can network science tackle complex biological systems?
Substantially reworked version
Largely conceptual, would be happy to see others fill in details or collaborate if people find it of value
osf.io/preprints/os...
#complexity
How can network science tackle complex biological systems?
Substantially reworked version
Largely conceptual, would be happy to see others fill in details or collaborate if people find it of value
osf.io/preprints/os...
#complexity
Reposted by Ranjith Jaganathan
New review from Jess Morrel & the @hertinglab.bsky.social exploring links between air pollution and the developing brain.
tl;dr: this literature is growing, but there are still gaps in time (sensitive exposure windows, timing of exposure -> brain changes) and space (most data from US/Europe)
tl;dr: this literature is growing, but there are still gaps in time (sensitive exposure windows, timing of exposure -> brain changes) and space (most data from US/Europe)
A systematic review of air pollution exposure and brain structure and function during development
Air pollutants are known neurotoxicants. In this updated systematic review, we evaluate new evidence since our 2019 systematic review on the effect of…
www.sciencedirect.com
April 1, 2025 at 4:45 PM
New review from Jess Morrel & the @hertinglab.bsky.social exploring links between air pollution and the developing brain.
tl;dr: this literature is growing, but there are still gaps in time (sensitive exposure windows, timing of exposure -> brain changes) and space (most data from US/Europe)
tl;dr: this literature is growing, but there are still gaps in time (sensitive exposure windows, timing of exposure -> brain changes) and space (most data from US/Europe)
Reposted by Ranjith Jaganathan
𝗪𝗵𝘆 𝗱𝗼 𝗮𝗻𝗲𝘀𝘁𝗵𝗲𝘁𝗶𝗰𝘀 𝗵𝗮𝘃𝗲 𝗮𝗻𝘅𝗶𝗼𝗹𝗶𝘁𝗶𝗰 𝗲𝗳𝗳𝗲𝗰𝘁𝘀?
One reason might be that the bed nucleus of the stria terminalis suppresses anxiety.
(Btw this region is as important as the amygdala in anxiety, likely more).
(h/t @ajshackman.bsky.social)
#neuroscience #neuroskyence
doi.org/10.1016/j.ce...
One reason might be that the bed nucleus of the stria terminalis suppresses anxiety.
(Btw this region is as important as the amygdala in anxiety, likely more).
(h/t @ajshackman.bsky.social)
#neuroscience #neuroskyence
doi.org/10.1016/j.ce...
March 4, 2025 at 5:02 PM
𝗪𝗵𝘆 𝗱𝗼 𝗮𝗻𝗲𝘀𝘁𝗵𝗲𝘁𝗶𝗰𝘀 𝗵𝗮𝘃𝗲 𝗮𝗻𝘅𝗶𝗼𝗹𝗶𝘁𝗶𝗰 𝗲𝗳𝗳𝗲𝗰𝘁𝘀?
One reason might be that the bed nucleus of the stria terminalis suppresses anxiety.
(Btw this region is as important as the amygdala in anxiety, likely more).
(h/t @ajshackman.bsky.social)
#neuroscience #neuroskyence
doi.org/10.1016/j.ce...
One reason might be that the bed nucleus of the stria terminalis suppresses anxiety.
(Btw this region is as important as the amygdala in anxiety, likely more).
(h/t @ajshackman.bsky.social)
#neuroscience #neuroskyence
doi.org/10.1016/j.ce...
Reposted by Ranjith Jaganathan
🚨 🧠
We have a new preprint out where we studied which brain networks are engaged during mental imagery and self-generated thought.
We used a precision fMRI approach along with multidimensional experience sampling (mDES) to get trialwise self-reports from each participant about what they imagined.
We have a new preprint out where we studied which brain networks are engaged during mental imagery and self-generated thought.
We used a precision fMRI approach along with multidimensional experience sampling (mDES) to get trialwise self-reports from each participant about what they imagined.
February 28, 2025 at 4:24 PM
🚨 🧠
We have a new preprint out where we studied which brain networks are engaged during mental imagery and self-generated thought.
We used a precision fMRI approach along with multidimensional experience sampling (mDES) to get trialwise self-reports from each participant about what they imagined.
We have a new preprint out where we studied which brain networks are engaged during mental imagery and self-generated thought.
We used a precision fMRI approach along with multidimensional experience sampling (mDES) to get trialwise self-reports from each participant about what they imagined.
Preparing slides for the talk on aesthetics, but no pressure to make the slides… you know, aesthetic! 😅
#Neuroaesthetics 🧠
#Neuroaesthetics 🧠
January 26, 2025 at 1:43 PM
Preparing slides for the talk on aesthetics, but no pressure to make the slides… you know, aesthetic! 😅
#Neuroaesthetics 🧠
#Neuroaesthetics 🧠
Interesting read
What is the brain? 🧠 New from Taylor Bolt: link.springer.com/article/10.1...
“The Brain is…”: A Survey of the Brain’s Many Definitions - Neuroinformatics
A reader of the peer-reviewed neuroscience literature will often encounter expressions like the following: ‘the brain is a dynamic system’, ‘the brain is a complex network’, or ‘the brain is a highly ...
link.springer.com
January 21, 2025 at 10:14 PM
Interesting read
Interesting study on curiosity based spatial exploration
"Curiosity shapes spatial exploration and cognitive map formation in humans." We are excited to share this novel paradigm and findings on curiosity-based exploration. This project was led tirelessly by @danlucen.bsky.social in collaboration with @cjhodgetts.bsky.social www.nature.com/articles/s44...
Curiosity shapes spatial exploration and cognitive map formation in humans - Communications Psychology
Across two studies using desktop VR, curiosity determined how much humans explored and how well the hand-drawn spatial maps they acquired corresponded to the rooms
www.nature.com
January 7, 2025 at 10:33 AM
Interesting study on curiosity based spatial exploration
Interesting modelling challenge — how the human brain responds to multimodal movies!
(1/4) The Algonauts Project 2025 challenge is now live!
Participate and build computational models that best predict how the human brain responds to multimodal movies!
Submission deadline: 13th of July.
#algonauts2025 #NeuroAI #CompNeuro #neuroscience #AI
algonautsproject.com
Participate and build computational models that best predict how the human brain responds to multimodal movies!
Submission deadline: 13th of July.
#algonauts2025 #NeuroAI #CompNeuro #neuroscience #AI
algonautsproject.com
The Algonauts Project 2025
homepage
algonautsproject.com
January 6, 2025 at 4:29 PM
Interesting modelling challenge — how the human brain responds to multimodal movies!
Very useful tool to study object recognition
🚨New Article alert! @agreco.bsky.social and @siegellab.bsky.social present an algorithm that enables video generation by selectively manipulating the spatial and temporal features of natural videos. www.nature.com/articles/s43... #compneuro #VisionScience
A spatiotemporal style transfer algorithm for dynamic visual stimulus generation - Nature Computational Science
The spatiotemporal style transfer (STST) algorithm enables video generation by selectively manipulating the spatial and temporal features of natural videos, fostering vision science research in both b...
www.nature.com
December 21, 2024 at 6:50 AM
Very useful tool to study object recognition
“Useful open #neuroscience is something everyone can and should strive for—even if only for their own benefit.” 🧠 🧪
www.thetransmitter.org/open-neurosc...
www.thetransmitter.org/open-neurosc...
A README for open neuroscience
Making data (and code) useful for yourself automatically makes it useful for others.
www.thetransmitter.org
December 17, 2024 at 11:25 AM
“Useful open #neuroscience is something everyone can and should strive for—even if only for their own benefit.” 🧠 🧪
www.thetransmitter.org/open-neurosc...
www.thetransmitter.org/open-neurosc...
Reposted by Ranjith Jaganathan
Thrilled to share my latest work "Microstructural asymmetry in the human cortex" now out in NatComms. www.nature.com/articles/s41...
This work used cytoarchitecture (BigBrain), T1w/T2w, qT1, and MT measures to bring the cortical asymmetry from macrostructure to microstructure.
This work used cytoarchitecture (BigBrain), T1w/T2w, qT1, and MT measures to bring the cortical asymmetry from macrostructure to microstructure.
Microstructural asymmetry in the human cortex - Nature Communications
The human cortex displays an anterior-to-posterior asymmetry, identified via both post-mortem and in vivo microstructural measurements. Microstructural asymmetry is heritable, varies across cortical l...
www.nature.com
November 25, 2024 at 12:41 PM
Thrilled to share my latest work "Microstructural asymmetry in the human cortex" now out in NatComms. www.nature.com/articles/s41...
This work used cytoarchitecture (BigBrain), T1w/T2w, qT1, and MT measures to bring the cortical asymmetry from macrostructure to microstructure.
This work used cytoarchitecture (BigBrain), T1w/T2w, qT1, and MT measures to bring the cortical asymmetry from macrostructure to microstructure.
I'm thrilled to announce that I'll be speaking at WT| Wearable Technologies Conference 2024 India, the premier event for wearable technology innovators, creators, and enthusiasts!
November 30, 2024 at 9:06 AM
I'm thrilled to announce that I'll be speaking at WT| Wearable Technologies Conference 2024 India, the premier event for wearable technology innovators, creators, and enthusiasts!
🌍 World Philosophy Day 2024: Philosophy for an Inclusive and Sustainable Future 🌱
As a cognitive scientist, I often find myself reflecting on how the mind shapes, and is shaped by, the world around us.
#WorldPhilosophyDay
As a cognitive scientist, I often find myself reflecting on how the mind shapes, and is shaped by, the world around us.
#WorldPhilosophyDay
November 22, 2024 at 4:50 PM
🌍 World Philosophy Day 2024: Philosophy for an Inclusive and Sustainable Future 🌱
As a cognitive scientist, I often find myself reflecting on how the mind shapes, and is shaped by, the world around us.
#WorldPhilosophyDay
As a cognitive scientist, I often find myself reflecting on how the mind shapes, and is shaped by, the world around us.
#WorldPhilosophyDay
From a cognitive science perspective, this article could have been a springboard for exploring deeper issues: What are the implications of AI-mediated decision-making on metacognition (awareness and understanding of one’s own thought processes)?
Ranjith Jaganathan on LinkedIn: Mechanized minds: AI's hidden impact on human thought
The article “Mechanized Minds: AI’s Hidden Impact on Human Thought” from Big Think, begins with an arresting claim: “While we’re busy wondering whether…
www.linkedin.com
November 21, 2024 at 8:53 AM
From a cognitive science perspective, this article could have been a springboard for exploring deeper issues: What are the implications of AI-mediated decision-making on metacognition (awareness and understanding of one’s own thought processes)?
Today, we come together to raise awareness about epilepsy, a neurological condition that affects millions of people worldwide. Epilepsy is more than just seizures—it’s a journey of resilience, understanding, and hope for those living with it.
#NationalEpilepsyDay
#NationalEpilepsyDay
November 17, 2024 at 9:44 AM
Today, we come together to raise awareness about epilepsy, a neurological condition that affects millions of people worldwide. Epilepsy is more than just seizures—it’s a journey of resilience, understanding, and hope for those living with it.
#NationalEpilepsyDay
#NationalEpilepsyDay
Important next steps for #NeuroAI
Some highlights from NIH Brain Initiative NeuroAI discussion.
@kanakarajanphd.bsky.social asked what we need to do over the next 10 years. Andreas Tolias answered that we need an ambitious concerted team science effort to build digital twins and reverse engineer how intelligence works. 1/
@kanakarajanphd.bsky.social asked what we need to do over the next 10 years. Andreas Tolias answered that we need an ambitious concerted team science effort to build digital twins and reverse engineer how intelligence works. 1/
November 16, 2024 at 10:45 AM
Important next steps for #NeuroAI