Emalie McMahon
@emaliemcmahon.bsky.social
510 followers 170 following 15 posts
Postdoc at MIT | Formerly Cognitive Science at Johns Hopkins emaliemcmahon.github.io
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emaliemcmahon.bsky.social
Congratulations, Ko! So well deserved
Reposted by Emalie McMahon
lisik.bsky.social
Humans are sensitive to many different types of social interactions, but it has been difficult to isolate these differences in the human brain

In this new preprint @yuanfangzhao.bsky.social w/ @emaliemcmahon.bsky.social applied data-driven methods to two fMRI video datasets to address this

1/n
yuanfangzhao.bsky.social
New preprint out!

“Separate Neural Representations for Physical and Communicative Social Interactions: Evidence from Data-driven Voxel Decomposition” w/ @emaliemcmahon.bsky.social @lisik.bsky.social

osf.io/preprints/ps...
OSF
osf.io
Reposted by Emalie McMahon
esfinn.bsky.social
Alternative title: "LLMs don't have ears (or eyes)"

What do humans and machines miss out on when processing language as purely written text, without all the embodied audiovisual richness that scaffolds language in daily human contexts?

Very proud of this elegant work from @tommybotch.bsky.social
tommybotch.bsky.social
New preprint! Thrilled to share my latest work with @esfinn.bsky.social -- "Sensory context as a universal principle of language in humans and LLMs"

osf.io/preprints/ps...
OSF
osf.io
Reposted by Emalie McMahon
iochromaland.bsky.social
On Friday, my son stayed home from school because he had a sore throat and wasn’t feeling well. He went with my husband to his office for the morning while I handled our daughter. When he came back at lunch, he was not interested in eating, saying his throat hurt too much. 1/n
Reposted by Emalie McMahon
vladchituc.bsky.social
I'm incredibly honored to be a recipient of this year's Glushko Prize. I've looked up to so many past winners over the years, so it's surreal to be getting one myself. Thanks to Bob Glushko and the prize committee, as well as to my advisor Brian Scholl and Sam McDougle for their letters of support.
cogscisociety.bsky.social
Join us in congratulating the rising stars of #CogSci 🌟

We're excited to introduce the 2025 Glushko Prize winners, and the fascinating research behind their work!
Congratulations to the winners of the 2025 Glushko Prize for outstanding dissertation in Cognitive Science.
emaliemcmahon.bsky.social
In closing, I want to thank my amazing advisors for supervising this work. I could not have imagined a better place to earn my PhD than the Department of Cognitive Science at @jhuartssciences.bsky.social
emaliemcmahon.bsky.social
Taken together, our results do support a spatiotemporal hierarchy for computing social interactions in the lateral visual stream.
emaliemcmahon.bsky.social
In our joint regression procedure we find that communicative interactions predict STS activity within 200 ms of stimulus onset. This reveals a rapid representation of high-level social interaction features in the brain.
emaliemcmahon.bsky.social
In the joint regression, we find that social primitives are broadly represented in mid- and high-level regions of the STS with a similar latency. Combined with the finding that LOC and aSTS are predicted with similar latency, this suggests there may be skip connections between EVC and the STS.
emaliemcmahon.bsky.social
In our final analysis, we use our novel regression procedure to jointly predict fMRI responses using EEG and stimulus features. We find that low-level visual features predict EVC activity with a short temporal latency and that communication is represented in the STS with the longest latency.
Joint prediction of three ROIs of the brain (EVC, LOC, and aSTS) by EEG and stimulus features (AlexNet, agent distance, and communication)
emaliemcmahon.bsky.social
The EEG signal predicts early visual cortex (EVC) with a very short latency. However, mid-level and high-level regions in the lateral visual pathway are represented with a similar latency, suggesting that the lateral visual stream may not be organized in a strict feedforward hierarchy.
A) The time course of EEG prediction of three ROIs in the brain: EVC, LOC, and aSTS. 
B) The whole brain prediction of fMRI activity from the EEG signal over time.
emaliemcmahon.bsky.social
We find that visual social primitives, such as how far apart two people are in a video, are decodable from EEG earlier than social interactions features like whether two people are communicating.
The decoding time course of two stimulus features (agent distance and communication) from the EEG activity.
emaliemcmahon.bsky.social
I am excited to share our recent preprint and the last paper of my PhD! Here, @imelizabeth.bsky.social, @lisik.bsky.social, Mick Bonner, and I investigate the spatiotemporal hierarchy of social interactions in the lateral visual stream using EEG-fMRI.

osf.io/preprints/ps...

#CogSci #EEG
Shown is an example image that participants viewed either in EEG, fMRI, and a behavioral annotation task. There is also a schematic of a regression procedure for jointly predicting fMRI responses from stimulus features and EEG activity.
Reposted by Emalie McMahon
francescopoli.bsky.social
I still can't believe this! I'm deeply grateful to Bob Glushko and to @cogscisociety.bsky.social for this award. Huge thanks to my advisors @sabinehunnius.bsky.social and @neuroecologylab.bsky.social, and to many more collaborators, all the work in my thesis would have been impossible without them!
cogscisociety.bsky.social
Join us in congratulating the rising stars of #CogSci 🌟

We're excited to introduce the 2025 Glushko Prize winners, and the fascinating research behind their work!
Congratulations to the winners of the 2025 Glushko Prize for outstanding dissertation in Cognitive Science.
emaliemcmahon.bsky.social
It is truly an honor to be recognized as a Glushko prize winner among all these incredible scientists. Thank you to the prize committee and to my PhD advisors @lisik.bsky.social and Mick Bonner.
cogscisociety.bsky.social
Join us in congratulating the rising stars of #CogSci 🌟

We're excited to introduce the 2025 Glushko Prize winners, and the fascinating research behind their work!
Congratulations to the winners of the 2025 Glushko Prize for outstanding dissertation in Cognitive Science.
Reposted by Emalie McMahon
courtneymilan.com
Hey, just a quiet reminder: it’s not true that people get more conservative as they age. *Populations* get more conservative as they age because poor and marginalized people die sooner.

nymag.com/intelligence...
Seniors Are More Conservative Because the Poor Die Off
Sometimes older voters aren’t just naturally more conservative. It’s just that wealthier and whiter people tend to live longer and healthier lives.
nymag.com
Reposted by Emalie McMahon
lisik.bsky.social
New preprint “Monkey See, Model Knew: LLMs accurately predict visual responses in humans AND NHPs”
Led by Colin Conwell with @emaliemcmahon.bsky.social Akshay Jagadeesh, Kasper Vinken @amrahs-inolas.bsky.social @jacob-prince.bsky.social George Alvarez @taliakonkle.bsky.social & Marge Livingstone 1/n
Reposted by Emalie McMahon
julianje.bsky.social
We wrote a paper on how we think language interacts with Theory of Mind, why the connection is tricky to find experimentally, and what this means for pragmatics: www.sciencedirect.com/science/arti...
kwnsfk27.r.eu-west-1.awstrack.me
Reposted by Emalie McMahon
martinhebart.bsky.social
I promised to write about my thoughts on the status of the field of neuroAI, some of the big challenges we are facing, and the approaches we are taking to address them. This is super selective on the topic of finding a good model but in my view it affects the field as a whole. Here we go. 🧵
Reposted by Emalie McMahon
lisik.bsky.social
Monkey See, Model Knew: LLMs accurately Predict Human AND Macaque Visual Brain Activity
Colin Conwell, @emaliemcmahon.bsky.social, Akshay Vivek Jagadeesh, Kasper Vinken, @amrahs-inolas.bsky.social, @jacob-prince.bsky.social, George Alvarez, @taliakonkle.bsky.social and Marge Livingstone
emaliemcmahon.bsky.social
Woo! So excited to read it!
Reposted by Emalie McMahon
kohitij.bsky.social
This new article perfectly concludes my time & lessons in Jim’s lab.@JamesJDiCarlo and I propose +review SMART models of object recognition
✅ Sensory computable
✅ Mechanistic
✅ Anatomically Referenced
✅ Testable
Coming in Annual Reviews 2024
Preprint: bit.ly/3tk7u8D
Reposted by Emalie McMahon
laurasn.bsky.social
First post here - sharing that our paper on infants' representation of third-party helping interactions is now published (OA) at the Annual Review of Developmental Psychology! www.annualreviews.org/doi/full/10....
A dog puppet and a lion puppet lifting the lid of a transparent box which contains a toy rattle
Reposted by Emalie McMahon
imelizabeth.bsky.social
I am super excited to share our preprint "Early neural development of social perception: evidence from voxel-wise encoding in young children and adults" with Angira Shirahatti and @lisik.bsky.social !! osf.io/preprints/ps...