Hayoung Song
@hayoungsong.bsky.social
studying cognitive dynamics and how the brain computes | postdoc-ing at WashU CTCN
https://hyssong.github.io/
https://hyssong.github.io/
Pinned
Hayoung Song
@hayoungsong.bsky.social
· Sep 5
A neural network with episodic memory learns causal relationships between narrative events
Humans reflect on past memories to make sense of an ongoing event. Past work has shown that people retrieve causally related past events during comprehension, but the exact process by which this causa...
www.biorxiv.org
How does the brain🧠 make causal inferences and use memories to understand narratives🎬?
We built an RNN🤖 with key-value episodic memory that learns causal relationships between events and retrieves memories like humans do!
Preprint www.biorxiv.org/content/10.1...
w/ @qlu.bsky.social, Tan Nguyen &👇
We built an RNN🤖 with key-value episodic memory that learns causal relationships between events and retrieves memories like humans do!
Preprint www.biorxiv.org/content/10.1...
w/ @qlu.bsky.social, Tan Nguyen &👇
Reposted by Hayoung Song
starting fall 2026 i'll be an assistant professor at @upenn.edu 🥳
my lab will develop scalable models/theories of human behavior, focused on memory and perception
currently recruiting PhD students in psychology, neuroscience, & computer science!
reach out if you're interested 😊
my lab will develop scalable models/theories of human behavior, focused on memory and perception
currently recruiting PhD students in psychology, neuroscience, & computer science!
reach out if you're interested 😊
November 25, 2025 at 9:36 PM
starting fall 2026 i'll be an assistant professor at @upenn.edu 🥳
my lab will develop scalable models/theories of human behavior, focused on memory and perception
currently recruiting PhD students in psychology, neuroscience, & computer science!
reach out if you're interested 😊
my lab will develop scalable models/theories of human behavior, focused on memory and perception
currently recruiting PhD students in psychology, neuroscience, & computer science!
reach out if you're interested 😊
Reposted by Hayoung Song
Just published my "Programming for Psychologists" course! 👩💻 github.com/Naubody/prog...
Designed for Psychology & Cognitive Neuroscience Master's students starting their programming journey at @vuamsterdam.bsky.social.
Feel free to share! Feedback welcome!
Designed for Psychology & Cognitive Neuroscience Master's students starting their programming journey at @vuamsterdam.bsky.social.
Feel free to share! Feedback welcome!
November 24, 2025 at 1:14 PM
Just published my "Programming for Psychologists" course! 👩💻 github.com/Naubody/prog...
Designed for Psychology & Cognitive Neuroscience Master's students starting their programming journey at @vuamsterdam.bsky.social.
Feel free to share! Feedback welcome!
Designed for Psychology & Cognitive Neuroscience Master's students starting their programming journey at @vuamsterdam.bsky.social.
Feel free to share! Feedback welcome!
Reposted by Hayoung Song
Interested in how the brain prepares for upcoming tasks? We trained a monkey on “6” different cognitive tasks and recorded prefrontal cortical activity. We examined the neural geometry and dynamics during task preparation. Come check out our poster on SUNDAY(Nov 16) from 1-5 PM!
November 15, 2025 at 3:01 AM
Interested in how the brain prepares for upcoming tasks? We trained a monkey on “6” different cognitive tasks and recorded prefrontal cortical activity. We examined the neural geometry and dynamics during task preparation. Come check out our poster on SUNDAY(Nov 16) from 1-5 PM!
Reposted by Hayoung Song
Excited to share that our new paper, “Predictive Looking and Predictive Looking Errors in Everyday Activities,” is now out in JEP: General! 🧠
We examined how people’s eye movements reveal both their predictions and their prediction errors while they watch everyday actions.
👇
We examined how people’s eye movements reveal both their predictions and their prediction errors while they watch everyday actions.
👇
November 12, 2025 at 9:31 PM
Excited to share that our new paper, “Predictive Looking and Predictive Looking Errors in Everyday Activities,” is now out in JEP: General! 🧠
We examined how people’s eye movements reveal both their predictions and their prediction errors while they watch everyday actions.
👇
We examined how people’s eye movements reveal both their predictions and their prediction errors while they watch everyday actions.
👇
Reposted by Hayoung Song
🎓Recruiting Ph.D. students for Fall 2026!🎓
The Feilong Lab @sc.edu studies commonalities & differences across brains, and how they relate to cognition, language, & disorders.
We develop brain templates, improve hyperalignment, and compare human brains with monkey brains & DNNs.
feilonglab.github.io
The Feilong Lab @sc.edu studies commonalities & differences across brains, and how they relate to cognition, language, & disorders.
We develop brain templates, improve hyperalignment, and compare human brains with monkey brains & DNNs.
feilonglab.github.io
Feilong Lab @ UofSC — Feilong Lab
feilonglab.github.io
November 7, 2025 at 5:55 PM
🎓Recruiting Ph.D. students for Fall 2026!🎓
The Feilong Lab @sc.edu studies commonalities & differences across brains, and how they relate to cognition, language, & disorders.
We develop brain templates, improve hyperalignment, and compare human brains with monkey brains & DNNs.
feilonglab.github.io
The Feilong Lab @sc.edu studies commonalities & differences across brains, and how they relate to cognition, language, & disorders.
We develop brain templates, improve hyperalignment, and compare human brains with monkey brains & DNNs.
feilonglab.github.io
Reposted by Hayoung Song
Hidden Markov Models
Speaking of HMMs, really enjoyed this paper on dynamics underlying resting state and other conditions. The idea of a baseline state from which excursions lead to more integrated states is really interesting.
doi.org/10.7554/eLif...
#neuroskyence
Speaking of HMMs, really enjoyed this paper on dynamics underlying resting state and other conditions. The idea of a baseline state from which excursions lead to more integrated states is really interesting.
doi.org/10.7554/eLif...
#neuroskyence
November 9, 2025 at 3:03 PM
Hidden Markov Models
Speaking of HMMs, really enjoyed this paper on dynamics underlying resting state and other conditions. The idea of a baseline state from which excursions lead to more integrated states is really interesting.
doi.org/10.7554/eLif...
#neuroskyence
Speaking of HMMs, really enjoyed this paper on dynamics underlying resting state and other conditions. The idea of a baseline state from which excursions lead to more integrated states is really interesting.
doi.org/10.7554/eLif...
#neuroskyence
Reposted by Hayoung Song
1/ To reduce distraction and boost focus, nothing works better than linking performance to rewards 💰 But what about focusing to avoid penalties? Turns out — it works too… just not as much as combining both!
Check out our new preprint 👇
w/ Ed Vogel and @monicarosenb.bsky.social
Check out our new preprint 👇
w/ Ed Vogel and @monicarosenb.bsky.social
October 31, 2025 at 8:41 PM
1/ To reduce distraction and boost focus, nothing works better than linking performance to rewards 💰 But what about focusing to avoid penalties? Turns out — it works too… just not as much as combining both!
Check out our new preprint 👇
w/ Ed Vogel and @monicarosenb.bsky.social
Check out our new preprint 👇
w/ Ed Vogel and @monicarosenb.bsky.social
Reposted by Hayoung Song
Had a great time chatting with CASNL alum @sudkrc.bsky.social and sharing our recent work on arousal!
Her editing/producing skills are next-level - she somehow wrangled my scattered brain into something that actually sounds coherent...
A true miracle worker 😅
Her editing/producing skills are next-level - she somehow wrangled my scattered brain into something that actually sounds coherent...
A true miracle worker 😅
NEW EPISODE OUT🧠!! In this episode, Su
@sudkrc.bsky.social chats with Dr. YC Leong @ycleong.bsky.social
of The University of Chicago on how dynamic brain connectivity predicts emotional arousal while watching Sherlock🕵️🧐
🎧LISTEN NOW: open.spotify.com/episode/5W22...
@sudkrc.bsky.social chats with Dr. YC Leong @ycleong.bsky.social
of The University of Chicago on how dynamic brain connectivity predicts emotional arousal while watching Sherlock🕵️🧐
🎧LISTEN NOW: open.spotify.com/episode/5W22...
161 - Yuan Chang (YC) Leong: Emotional arousal & dynamic brain connectivity
open.spotify.com
October 30, 2025 at 6:56 PM
Had a great time chatting with CASNL alum @sudkrc.bsky.social and sharing our recent work on arousal!
Her editing/producing skills are next-level - she somehow wrangled my scattered brain into something that actually sounds coherent...
A true miracle worker 😅
Her editing/producing skills are next-level - she somehow wrangled my scattered brain into something that actually sounds coherent...
A true miracle worker 😅
Reposted by Hayoung Song
🏆 #CNS2026 Young Investigator Award Winners 🏆
Congratulations to Monica Rosenberg and Samuel D. McDougle, recipients of the 2026 Young Investigator Award! 🎉
We look forward to their award lectures at the CNS 2026 Annual Meeting in Vancouver, BC, Canada! 🇨🇦✨
@cogneuronews.bsky.social
Congratulations to Monica Rosenberg and Samuel D. McDougle, recipients of the 2026 Young Investigator Award! 🎉
We look forward to their award lectures at the CNS 2026 Annual Meeting in Vancouver, BC, Canada! 🇨🇦✨
@cogneuronews.bsky.social
October 29, 2025 at 1:07 PM
🏆 #CNS2026 Young Investigator Award Winners 🏆
Congratulations to Monica Rosenberg and Samuel D. McDougle, recipients of the 2026 Young Investigator Award! 🎉
We look forward to their award lectures at the CNS 2026 Annual Meeting in Vancouver, BC, Canada! 🇨🇦✨
@cogneuronews.bsky.social
Congratulations to Monica Rosenberg and Samuel D. McDougle, recipients of the 2026 Young Investigator Award! 🎉
We look forward to their award lectures at the CNS 2026 Annual Meeting in Vancouver, BC, Canada! 🇨🇦✨
@cogneuronews.bsky.social
Reposted by Hayoung Song
I will be recruiting 🌟PhD students🌟 for my newish lab! If you're interested in learning & memory mechanisms applied to individual, interactive & collective behavior using computational modeling, real-world experiments and fMRI, email me! RTs much appreciated 🙏 rouhanilab.com
Interactive Cognition Lab | USC
Interactive Cognition Lab at USC, led by principal investigator, Dr. Nina Rouhani.
rouhanilab.com
October 24, 2025 at 4:57 PM
I will be recruiting 🌟PhD students🌟 for my newish lab! If you're interested in learning & memory mechanisms applied to individual, interactive & collective behavior using computational modeling, real-world experiments and fMRI, email me! RTs much appreciated 🙏 rouhanilab.com
Reposted by Hayoung Song
A RNN with episodic memory, trained on free recall, learned the memory palace strategy -- the network developed an abstract item index code so that it can “walk along” the same trajectory in the hidden state space to encode/retrieve item sequences!
Feedback appreciated!
Feedback appreciated!
I’m excited to share my recent preprint on a neural network model of free recall that learns multiple memory strategies including the memory palace!
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
October 22, 2025 at 1:29 PM
A RNN with episodic memory, trained on free recall, learned the memory palace strategy -- the network developed an abstract item index code so that it can “walk along” the same trajectory in the hidden state space to encode/retrieve item sequences!
Feedback appreciated!
Feedback appreciated!
Reposted by Hayoung Song
Out now in @nathumbehav.nature.com! We applied graph theoretic analyses to fMRI data of participants watching movies/listening to stories. Integration across large-scale functional networks mediates arousal-dependent enhancement of narrative memories. Open access link: rdcu.be/eKKAw
October 13, 2025 at 3:55 PM
Out now in @nathumbehav.nature.com! We applied graph theoretic analyses to fMRI data of participants watching movies/listening to stories. Integration across large-scale functional networks mediates arousal-dependent enhancement of narrative memories. Open access link: rdcu.be/eKKAw
Reposted by Hayoung Song
New paper out! Revisiting the DMN's self-related processing from an embodied view🧠💪 Huge thanks to
@choongwanwoo.bsky.social and @jeongin-lee00.bsky.social for enriching my internal model with great insights and fun discussions along the way!
@choongwanwoo.bsky.social and @jeongin-lee00.bsky.social for enriching my internal model with great insights and fun discussions along the way!
Our new paper is out in Current Opinion in Behavioral Sciences; a perspective paper on the DMN, titled "Embodying the default mode network: self-related processing from an embodied perspective"
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Embodying the default mode network: self-related processing from an embodied perspective
Self-related processes in the default mode network (DMN) have been viewed predominantly through a cognitive lens, often overlooking the embodied dimen…
www.sciencedirect.com
October 8, 2025 at 4:25 PM
New paper out! Revisiting the DMN's self-related processing from an embodied view🧠💪 Huge thanks to
@choongwanwoo.bsky.social and @jeongin-lee00.bsky.social for enriching my internal model with great insights and fun discussions along the way!
@choongwanwoo.bsky.social and @jeongin-lee00.bsky.social for enriching my internal model with great insights and fun discussions along the way!
Reposted by Hayoung Song
Six of the nine Nobel Prize winners this year work in the U.S.
Three of the six were born outside the U.S., which is the pattern most years. No country has benefited more from welcoming immigrants from around the world.
www.nobelprize.org
Three of the six were born outside the U.S., which is the pattern most years. No country has benefited more from welcoming immigrants from around the world.
www.nobelprize.org
The official website of the Nobel Prize - NobelPrize.org
The Nobel Prize rewards science, humanism and peace efforts. This is one of the central concepts in the will of Alfred Nobel, and it also permeates the outreach activities that have been developed for...
www.nobelprize.org
October 8, 2025 at 12:37 PM
Six of the nine Nobel Prize winners this year work in the U.S.
Three of the six were born outside the U.S., which is the pattern most years. No country has benefited more from welcoming immigrants from around the world.
www.nobelprize.org
Three of the six were born outside the U.S., which is the pattern most years. No country has benefited more from welcoming immigrants from around the world.
www.nobelprize.org
Reposted by Hayoung Song
Very excited to share that my first paper, with Peter Mende-Siedlecki and @leorhackel.bsky.social, is out now in @commspsychol.nature.com! ☺️
Can getting more rewards make you feel more skilled, even if your performance doesn't change?
www.nature.com/articles/s44...
Can getting more rewards make you feel more skilled, even if your performance doesn't change?
www.nature.com/articles/s44...
Rewards bias self-evaluations of ability - Communications Psychology
People often receive rewards for good performance, but what happens when rewards do not reflect ability? Two behavioral studies suggest that rewards can impact how we evaluate our own ability, above and beyond the impact of actual performance.
www.nature.com
October 3, 2025 at 6:12 PM
Very excited to share that my first paper, with Peter Mende-Siedlecki and @leorhackel.bsky.social, is out now in @commspsychol.nature.com! ☺️
Can getting more rewards make you feel more skilled, even if your performance doesn't change?
www.nature.com/articles/s44...
Can getting more rewards make you feel more skilled, even if your performance doesn't change?
www.nature.com/articles/s44...
Reposted by Hayoung Song
Excited to share that I'm joining WashU in January as an Assistant Prof in Psych & Brain Sciences! 🧠✨!
I'm also recruiting grad students to start next September - come hang out with us! Details about our lab here: www.deckerlab.com
Reposts are very welcome! 🙌 Please help spread the word!
I'm also recruiting grad students to start next September - come hang out with us! Details about our lab here: www.deckerlab.com
Reposts are very welcome! 🙌 Please help spread the word!
DeckerLab
www.deckerlab.com
October 1, 2025 at 6:30 PM
Excited to share that I'm joining WashU in January as an Assistant Prof in Psych & Brain Sciences! 🧠✨!
I'm also recruiting grad students to start next September - come hang out with us! Details about our lab here: www.deckerlab.com
Reposts are very welcome! 🙌 Please help spread the word!
I'm also recruiting grad students to start next September - come hang out with us! Details about our lab here: www.deckerlab.com
Reposts are very welcome! 🙌 Please help spread the word!
Reposted by Hayoung Song
I'm recruiting PhD students to join my new lab in Fall 2026! The Shared Minds Lab at @usc.edu will combine deep learning and ecological human neuroscience to better understand how we communicate our thoughts from one brain to another.
October 1, 2025 at 10:39 PM
I'm recruiting PhD students to join my new lab in Fall 2026! The Shared Minds Lab at @usc.edu will combine deep learning and ecological human neuroscience to better understand how we communicate our thoughts from one brain to another.
Reposted by Hayoung Song
1/ Why are we so easily distracted? 🧠 In our new EEG preprint w/ Henry Jones, @monicarosenb.bsky.social and @edvogel.bsky.social we show that distractibility is associated w/ reduced neural connectivity — and can be predicted from EEG with ~80% accuracy using machine learning.
September 28, 2025 at 7:14 PM
1/ Why are we so easily distracted? 🧠 In our new EEG preprint w/ Henry Jones, @monicarosenb.bsky.social and @edvogel.bsky.social we show that distractibility is associated w/ reduced neural connectivity — and can be predicted from EEG with ~80% accuracy using machine learning.
Reposted by Hayoung Song
New preprint! How can you remember an image you saw once, even after seeing thousands of them? We find a role for humble mid-level visual cortex in high-capacity, one-shot learning. doi.org/10.1101/2025.09.22.677855 🧵🧪1/
Neuronal signatures of successful one-shot memory in mid-level visual cortex
High-capacity, one-shot visual recognition memory challenges theories of learning and neural coding because it requires rapid, robust, and durable representations. Most studies have focused on the hip...
doi.org
September 23, 2025 at 3:09 PM
New preprint! How can you remember an image you saw once, even after seeing thousands of them? We find a role for humble mid-level visual cortex in high-capacity, one-shot learning. doi.org/10.1101/2025.09.22.677855 🧵🧪1/
Reposted by Hayoung Song
Last month, I launched my lab at Ohio State. Our lab website is now live, and we're recruiting graduate students this cycle! If you're interested in the cognitive (neuro)science of learning & memory, please reach out!
www.momentslab.org
www.momentslab.org
Moments Lab
www.momentslab.org
September 19, 2025 at 2:25 PM
Last month, I launched my lab at Ohio State. Our lab website is now live, and we're recruiting graduate students this cycle! If you're interested in the cognitive (neuro)science of learning & memory, please reach out!
www.momentslab.org
www.momentslab.org
This is such a well crafted study with compelling findings!👏🎊
Very excited to announce my student Andreas Arslan's first paper, "Causal coherence improves episodic memory of dynamic events" in Cognition!
Out now open access: www.sciencedirect.com/science/arti...
Andreas isn't on bsky, but he very kindly wrote a summary thread for me to share.
🧵 (1/24)
Out now open access: www.sciencedirect.com/science/arti...
Andreas isn't on bsky, but he very kindly wrote a summary thread for me to share.
🧵 (1/24)
Causal coherence improves episodic memory of dynamic events
“Episodes” in memory are formed by the experience of dynamic events that unfold over time. However, just because a series of events unfold sequentiall…
www.sciencedirect.com
September 17, 2025 at 5:16 PM
This is such a well crafted study with compelling findings!👏🎊
Reposted by Hayoung Song
How does spontaneous memory reinstatement at rest relate to episodic memory during development? And how do early experiences influence neural mechanisms of episodic memory encoding and reinstatement? New preprint! www.biorxiv.org/content/10.1...
Spontaneous reinstatement of episodic memories in the developing human brain
The hippocampus supports episodic memories in development, and yet how the brain stabilizes these memories determines their long-term accessibility. This study examined how episodic memories formed in...
www.biorxiv.org
September 16, 2025 at 12:19 PM
How does spontaneous memory reinstatement at rest relate to episodic memory during development? And how do early experiences influence neural mechanisms of episodic memory encoding and reinstatement? New preprint! www.biorxiv.org/content/10.1...
Reposted by Hayoung Song
👩💻 New preprint out (FIRST one of my PhD journey) with the incredible @lindedomingo.bsky.social @ortiztudela.bsky.social @gonzalezgarcia.bsky.social
"From sudden perceptual learning to enduring engrams: A representational perspective" 🧠
doi.org/10.31234/osf...
"From sudden perceptual learning to enduring engrams: A representational perspective" 🧠
doi.org/10.31234/osf...
September 12, 2025 at 10:54 AM
👩💻 New preprint out (FIRST one of my PhD journey) with the incredible @lindedomingo.bsky.social @ortiztudela.bsky.social @gonzalezgarcia.bsky.social
"From sudden perceptual learning to enduring engrams: A representational perspective" 🧠
doi.org/10.31234/osf...
"From sudden perceptual learning to enduring engrams: A representational perspective" 🧠
doi.org/10.31234/osf...
Reposted by Hayoung Song
🚀Excited to share our project: Canonical Representational Mapping for Cognitive Neuroscience. @schottdorflab.bsky.social and I propose a novel multivariate method to isolate neural representations aligned with specific cognitive hypotheses 🧵https://www.biorxiv.org/content/10.1101/2025.09.01.673485v1
September 5, 2025 at 4:18 PM
🚀Excited to share our project: Canonical Representational Mapping for Cognitive Neuroscience. @schottdorflab.bsky.social and I propose a novel multivariate method to isolate neural representations aligned with specific cognitive hypotheses 🧵https://www.biorxiv.org/content/10.1101/2025.09.01.673485v1