Apurva Ratan Murty
@apurvaratan
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Neuroscientist. Assistant Professor of Cognition and Brain Science @GeorgiaTech Prev: Postdoc @MIT , PhD @iiscbangalore
IISc | MIT | Georgia Tech
Joined August 2009
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Last Seen Profiles
Pinned Tweet
🎉 Exciting News! 🎉 I'm thrilled to announce that I will be joining
#GeorgiaTech
as an Assistant Professor starting Jan 1, 2024! I'm actively recruiting members to join the lab. So please spread the word! The lab website also goes live today.
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Its finally here! The project that lifted my spirits through 2020-21! Super excited to finally see this online
@SpringerNature
@NatureComms
: Here is a thread! 1/11
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Thrilled to announce that I have received the
@NIH
@NatEyeInstitute
K99/R00 Pathway to Independence Award to continue my work
@mcgovernmit
@MIT
with my awesome mentors
@Nancy_Kanwisher
and
@JamesJDiCarlo
. Can't wait to share the exciting work in the pipeline.
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Excited to finally share the preprint on
#bioRxiv
! Where we show robust face-selective response in the fusiform gyrus of congenitally blind during haptic exploration of 3D-printed stimuli.
Visual Experience is not Necessary for the Development of Face Selectivity in the Lateral Fusiform Gyrus
#biorxiv_neursci
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That moment when MIT features your work on its homepage!! 🤯
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Now out in PNAS!! Where we show robust face selectivity in the fusiform gyrus of congenitally blind participants! Also
@Nancy_Kanwisher
’s first tweet! 😊
My first tweet!
Psyched to share our cool new paper led by
@apurvaratan
showing face-selective responses in the fusiform in congenitally blind people:
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Delighted to share this new preprint with compelling evidence for regions in visual cortex selective for images of food! This is a real analysis tour-de-force led by the amazing
@meenakshik93
. See
@Nancy_Kanwisher
's awesome tweeprint. My own highlights below.
I'm psyched to share a new study led by
@meenakshik93
, with
@apurvaratan
collaborating: Data-driven methods applied to the NSD fMRI dataset reveals that the ventral visual pathway has neural populations that respond very selectively to images of food:
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This just out in
@CurrentBiology
, with
@meenakshik93
and
@Nancy_Kanwisher
. Many thanks to the 4 reviewers for their super constructive comments and feedback. Check out the paper for even more additional tests and control analyses!
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So cool!
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Super excited to be speaking at the InBrain Symposium tomorrow. What an exciting lineup.
Tomorrow is our 1st MGH-MIT InBRAIN Human Intracranial Neuroscience Symposium!
In-person at the MGH Ether Dome.
Schedule here, with a
@DBSThinkTank
format of equal time for presentation and discussion:
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I TAed this course last semester and can vouch how awesome it is!
My undergrad course on The Human Brain (the 2018 version) just went live on MIT's Open Course Ware. I am sure it contains errors and omissions and other infelicities, please email me with suggestions on how I can make it better.
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Excited to co-organize this meeting with such an amazing team! More to come shortly
@dongyanl1n
@arna_ghosh
@jcrwhittington
@EngelTatiana
@DLBarack
@blamlab
@dlevenstein
Comparing artificial and biological networks: are we limited by tools, hypotheses or data?
@meenakshik93
@TalGolanNeuro
@ItsNeuronal
@khermann_
@aran_nayebi
@s_y_chung
@jenellefeather
@tsonj
@luosha
@JamesJDiCarlo
, Radoslaw Cichy, Kalanit Grill-Spector,
@ProfData
@apurvaratan
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Meenakshi is an amazing scientist and a force! So excited to see her starting her lab at UCSD.
Happy to share that beginning Jan 2024, I will be joining UCSD as an Assistant Professor in Cognitive Science! 🌟 I'm super excited to put together a collaborative team to explore the exciting intersection of neuroscience and machine learning together!
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Check out this new paper with
@m_the_cohen
and Kirsten Lydic where we use ANN-based models to identify features that potentially underlie the bandwidth of visual awareness in humans!
NEW PAPER ALERT: So happy to post my first paper using deep nets with
@apurvaratan
and
@kirstenlydic
! A thread:
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Personal thoughts first. I love science and have wanted to be a scientist for as long as I can remember. It's overwhelming it's finally happening! Many thanks to my family, previous mentors (
@Nancy_Kanwisher
@JamesJDiCarlo
@sparuniisc
), collaborators, colleagues, and friends.
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Interested in how language and though are related? Join Anya’s LiT Lab! It’s gonna be awesome.
The final paperwork is still pending, but it’s time to spread the word, so here goes---
I am starting as an Assistant Professor in Psychology at Georgia Tech!
thread ⬇️
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At
@NeurIPSConf
today? Head to the
@svrhm_workshop
in-person (Halls 394-395) or online ( Neurips website) to learn more about the bleeding edge of NeuroAI. We have assembled an exciting lineup of speakers. And please do come by and say hi! More on the lineup and papers shortly.
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Attn Vision Tweeple: SVRHM2021 is happening tomorrow! Looking forward to seeing you there.. Do reach out to me if you're unable to access links etc.
#SVRHM2021
starts at 9.45AM EST tomorrow. We have an excellent lineup of speakers and talks.. Schedule: . Looking forward to seeing you there!
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Excited to share this new paper in collaboration with
@ElahehHatami
, Michael Pitts and
@m_the_cohen
on the neural basis of perceptual awareness using a no-report paradigm. Check our Michael's tweeprint here. My own thoughts below.
NEW PAPER ALERT: Very happy to see a new paper published in
@CurrentBiology
on the neural correlates of perceptual awareness in a no-report fMRI visual masking paradigm (with
@ElahehHatami
,
@apurvaratan
, and (twitterless) Michael Pitts). A thread 🧵:
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E2. What features of the face, body and scene drive these regions? We used tools from AI interpretability (RISE) to ask that next. Here is the what the models tell us (on a cute pic with
@Nancy_Kanwisher
and Shiloh)! A new hypothesis to test! 8/11
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We’ll be back this year with SVRHM2022! Stay tuned for more updates
SVRHM is happening again in 2022! See you all in December at NeurIPS! We'll be announcing our Call for Papers soon!
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Just ‘attending a conference’ can be such an incredible pain point for many. Highly recommend read.
🧵Why conferences are crucial in academia & should be accessible to all scientists regardless of background or ethnicity:
A thread on mental health, identity, & equal opportunities in academia.
More thoughts in my paper out in
@NatureHumBehav
:
@PhDVoice
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Our results combine the interpretive benefits of “semantic models” with powerfully predictive computational models. Further, because our models are highly accurately predictive for new stimuli and new subjects, you can use them too.. (Colab link coming soon!) 9/11
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Ushering in the future with integrative benchmarking! Happy to see this finally out.. Come join us!
@martin_schrimpf
@qbilius
Michael Lee, Robert Ajemian
@JamesJDiCarlo
A call for integrating experimental results from many laboratories into suites of benchmarks to push mechanistic models toward explaining entire domains of intelligence,
by
@martin_schrimpf
@qbilius
, M.J. Lee,
@apurvaratan
, R. Ajemian,
@JamesJDiCarlo
@MIT
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We’re back this year with another edition of
@svrhm2020
@NeurIPSConf
!!
The
@svrhm2020
workshop at
@NeurIPSConf
was renewed again this year! We'll be accepting papers soon. Organized by
@ArtDeza
@joshuacpeterson
,
@apurvaratan
, & Tom Griffiths (
@cocosci_lab
).
@neurograce
@sparuniisc
@TimKietzmann
@brialong
@martin_hebart
@gamaleldinfe
@leylaisi
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The Kanwisher Lab is looking for a Lab tech! A wonderful opportunity to get some world-class experience before Graduate school.. If interested, get in touch and apply soon!!
The Kanwisher Lab is hiring a new lab tech! This is an amazing opportunity to learn about neuroimaging and fMRI analysis, and to focus your interests for graduate school! See this link for more details:
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At
#CCN2023
Oxford? Head to our GAC this morning at 8.30am to discuss where we stand on model-to-brain comparisons and possible ways to make progress!
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First we collected a high-quality fMRI dataset (** hours per subject), localized the FFA, PPA and EBA, and built CNN-based encoding models to predict the mean response of each region to each image. How accurate are these predictions? Pretty damn good! 4/11
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@Nancy_Kanwisher
@JamesJDiCarlo
@sparuniisc
@NIH
@NatEyeInstitute
If you're interested in vision in brains, behaviors, and machines, reach out! Ideal candidates will have a background in neuro/cog sci/psychology or CS/ML/AI. Check out the Research Page of the website for info.
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We will be back with the third edition of SVRHM!!
Excited to announce that we will be having a 3rd SVRHM Workshop at NeurIPS in December! Stay tuned for more updates on speakers, reviewers, prizes, schedule, and our call for papers (usually due in early October)! See you all again very soon!
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🙄
Just out in the New Yorker: An article about Men Reading Minds with fMRI!
The author mentions 9 male and 0 female neuroscience professors, a feat made possible by impressive contortions like attributing a study from Ev Fedorenko’s lab to one of its male middle authors.
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Looking to get some research experience before grad school? Don’t miss this opportunity! Come join us!!
Apply here for the full-time lab tech position in my lab:
We use brain, behavior, and computational methods to understand the human mind and brain.
This position is a great stepping stone to grad school.
Nancy
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Incredible opportunity!! Apply now and come join us!
Want to be a part of a world-renowned
#AI
/
#computational
#neuroscience
lab at McGovern Institute?
@JamesJDiCarlo
is looking for two Technical Associates to join his team... Details here:
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Paradigm changing paper by
@VisionBernie
! 🙂
We proudly present our newest paper entitled "ACTION: A Catchy Title Is all yOu Need!"
This is joint work with awesome
@realkevinsmith
, marvelous
@thomaspocon
and twitterless Max Siegel
The paper will likely be presented at
@sigbovik
1/n
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An excellent dispatch on our recent paper by
@BartelsAndreas
and
@michael_bannert
.
@meenakshik93
@Nancy_Kanwisher
Our dispatch with
@michael_bannert
is out
@CurrentBiology
! We discuss the excellent paper by
@meenakshik93
@apurvaratan
@Nancy_Kanwisher
(plus 2 related preprints, involving
@cvnlab
) who used big data to discover food selectivity in the human brain.
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9/ To summarize, the evidence for food selectivity is highly robust, admittedly even more than I imagined when we first stated. Personally, this was an awesome collaboration with
@meenakshik93
and
@Nancy_Kanwisher
and we all had a lot of fun nerding out on food! 🤓
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Cool new toolbox of mid level Vision from
@mo_rezanejad
and others from
@DirkBWalther
’s group. Showcased today
@svrhm_workshop
. Check it out!
A relevant Mid-Level Vision Toolbox developed by
@DirkBWalther
's group that popped up during his talk earlier today! :
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Timely and important review on the visual perception of scenes!
Our review on scene perception is now freely available in the Oxford Research Encyclopedia of Neuroscience!
We discuss object-, space- and affordance-based scene representations and behavioral, fMRI and M/EEG evidence for each in the human brain!
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Many questions remain:
1) How many previously-published results do these models explain?
2) What data can break the models?
3) How can we expand beyond these regions? 10/11
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If prediction == understanding (see GAC for a lively discussion), how well do experts (Professors) understand these regions? ANN models handily beat experts at predicting responses in these regions. 6/11
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Call for papers for SVRHM is now open!
Our Call for Papers has officially been announced! Submit your Human+Machine Vision 5 page papers by September 22nd, 2022 (!) SVRHM will be back in person/hybrid and we will have prizes and more space for Orals this year! See you all in New Orleans!
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Cool new paper by
@PramodRT9
,
@m_the_cohen
. Compelling evidence for the representation of physical stability in human ‘physics regions’
New paper out in eLife led by
@PramodRT9
with
@m_the_cohen
and Josh Tenenbaum!
Invariant representation of physical stability in the human brain
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Not just predicting mean activations but also at predicting voxel-wise and population-level responses! 5/11
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Use child-friendly movies to study the development of cortical regions in kids! New paper led by the awesome
@FreddyKamps
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@paulctan
@karpathy
Check out this super cool work from the
@KanwisherLab
@Nancy_Kanwisher
led by my friend and colleague
@KathaDobs
. It shows evidence for spontaneous segregation within neural networks into functional segments. Much like human brains!
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It’s
#sfn18
time again!! En route to San Diego. Looking forward to good science, good food and catching up with friends and colleagues.
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Really nice article by Anne Trafton on our recent
@CurrentBiology
paper led by
@meenakshik93
with
@Nancy_Kanwisher
.
Neuroscientists have discovered a population of neurons in the visual cortex that lights up whenever we see images of food. The unexpected finding may reflect the special significance of food in human culture, the researchers say.
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@Nancy_Kanwisher
@JamesJDiCarlo
@sparuniisc
@NIH
@NatEyeInstitute
Job openings next: The lab seeks highly motivated PhD students to join the lab. The lab seeks to understand the neural basis for how we see and reason with the world. We will be at the cutting-edge of the field employing a range of experimental and computational approaches.
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Apply now!
Are you interested in computational cognitive neuroscience and in using DNNs to better understand face and object perception (like this )? Then join my lab
@jlugiessen
as PhD student and apply here . :) RT please.
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Stop by if you’re at the Cambridge Science Festival!
Come neuro with us! Cambridge Science Festival at MIT Museum Friday Oct 7th with
@m_the_cohen
@fernanda_dltr
@apurvaratan
@meenakshik93
@HopeKean
@madisonrleone
@ev_fedorenko
@JoshHMcDermott
@mcgovernmit
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But does this tell us anything new? Enabled with these fROI-level models, we ran some dream experiments! E1. Are faces, places, scenes really the stimuli that maximally activate these regions? We ran 3.5 million stimuli through and model and synthesized GAN-based stimuli.
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@hil_richardson
@AcademicChatter
We used and it was super convenient and easy to set up. Recommended!
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For example, words like “face- place- and body- selective” are used typically to describe their functions. This isn’t great for several reasons.
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Come join us!!
New opening for a full-time lab tech in the Kanwisher Lab; apply here:
Very strong math and computer skills and a serious interest in the human brain required.
This position is an ideal stepping stone toward to graduate programs in cognitive neuroscience.
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1) We always need a human in the loop 2) These are poor descriptions of the pattern of data from these regions, and 3) The description could very well be WRONG! Models to the rescue! 3/11
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Exciting new initiative!
Announcing the first ever Brain-Score Competition ! Submit your models before Feb 15 to compete in 33 (!) neural and behavioral benchmarks, ranging from V1 to behavior. $6,000 in prize money will be awarded to the best overall, V1, and behavior models. 1/n
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@Nancy_Kanwisher
@JamesJDiCarlo
@sparuniisc
@NIH
@NatEyeInstitute
There will be other openings soon: a lab manager position (possibly joint with the LiT lab), and at least one funded postdoc position. Current undergrad/Masters students are also encouraged to apply. More announcements soon! Stay tuned.
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This is one of those papers that was initiated over a coffee-table discussion, this one with my friend and colleague
@m_the_cohen
. So thrilled to see this out!
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This effect is so strong for me!!
Chromostereopsis
The majority of observers (50-80%?) see red in front of blue, while some observers (10-30%?) see blue in front of red.
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Ok.. this is just getting out of hand here..
Trying a horrible experiment...
Which will the Twitter algorithm pick: Mitch McConnell or Barack Obama?
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@diedrichsenlab
@KriegeskorteLab
@NKriegeskorte
@andpru
In M1, S1, V1 and V2. Surely some representations are dynamic...
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@Nancy_Kanwisher
@JamesJDiCarlo
@sparuniisc
@NIH
@NatEyeInstitute
Check out the Openings Page for how to reach out and apply.
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@Nancy_Kanwisher
@JamesJDiCarlo
@sparuniisc
Thanks also to the
@NIH
@NatEyeInstitute
#K99
/R00 for supporting my research.
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Oh well here is the update from AFTER the meeting. 🙂
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Wish more companies emulated the Tata model!
As to
@OpenAI
's structure being constantly referred to as odd, "Tata Trusts" are a group of public charities by the Tata family members in India. These trusts are non-profit entities, and they play a significant role in the governance and ownership of the Tata Group, which is
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What a wonderful idea!
Excited to share a new project from the SoCal Lab! We’re calling it our Open File Drawer:
Tl;dr: We’re posting short reports, w/ open materials & data, about the finished projects we don’t intend to publish. Read on for an explanation and a question. 1/n
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8/ Test 5. Our handpicked pairs. Food and non-images are VERY VERY similar. Model prediction? Food >> Non-food
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6/ Personally, this was a very fruitful collaboration with some brilliant friends and colleagues. It was refreshing to think of ideas beyond what I typically work on.
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@Nancy_Kanwisher
@JamesJDiCarlo
@sparuniisc
@NIH
@NatEyeInstitute
This is a unique opportunity. You will be at the forefront of shaping the lab's culture and research directions. You'll collaborate with some of the brightest minds from various disciplines in Georgia Tech and beyond. Georgia Tech offers state-of-the-art research infrastructure.
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@neuranna
Thrilled to be starting alongside
@neuranna
and supercharge the human NeuroAI research thrust
@GeorgiaTech
Psych! Come join us..
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@DirkBWalther
@ArtDeza
Thanks for your support and for attending the workshop in person, Dirk. Hope you join us again in future installments of the
@svrhm_workshop
.
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Mean number of estimated cases in India PER DAY (acc to this model) is 2.1 million! Totally believable if you ask me. This is humanitarian disaster.
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5/ To summarize, the overwhelming frontal/parietal activations in previous studies are likely an artifact of active subjective reporting. This study is constructive in the sense that is also paves the path for future work using more sensitive multivariate methods.
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Thanks
@patrickmineault
for doing this. And hope you feel better soon!
I got hit by a nasty virus so couldn't make it to New Orleans to present at SVRHM. I decided to do a recording and edit out the coughing. I've rarely done a presentation where I was running on fumes to this degree so I hope it's reasonably coherent
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@katestorrs
Another idea could be sparsity index a la Vinje and Gallant (2000), but with responses averaged over categories. It’s nicely bounded etc.
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Congrats
@VisionBernie
for solving Level 6 Autonomous driving! *woot woot*
Proud to announce that we solved level 6 autonomous driving!
Our paper made it to
@SIGBOVIK
2020
The proceedings are already online:
The conference at 5pm on zoom and youtube
Autonomous driving solved - take that
@elonmusk
@GaryMarcus
@lexfridman
!
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@beth_miecz
is off to Princeton! Can't wait to see all the AMAZING stuff you'll do. So happy and proud!
Thrilled to announce that this fall I’ll be starting my PhD
@PrincetonCS
advised by Profs Tom Griffiths (
@cocosci_lab
) and Natalia Vélez (
@natvelali
)! 🐯🧡 I am incredibly grateful to everyone who has supported me along the way, especially...
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@nidhi_s91
IIT Kharagpur has such a program and recently contacted me about it. I can send you the details via email
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Regions like FFA, PPA and EBA are studied in extensively and have provided important evidence for domain-specificity in the human brain and mind. BUT important questions remain unanswered. 2/11
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4/ So does this overturn classic prior results? Plot twist: You can still DECODE awareness signals from the frontal and parietal regions. We show this systematically using whole brain maps like such.
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7/ Please do reach out if you have thoughts, comments, or questions!
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Thanks again to awesome friends, collaborators and mentors
@PouyaBashivan
, Alex Abate,
@JamesJDiCarlo
and
@Nancy_Kanwisher
. Shoutout to all experts who sportingly participated in the behavioral experiment too. 11/11
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