Anjoom AV

Individual Variations in Attention & Action
Fine movement control, Language, WM, Handedness, Hemispheric Asymmetry, NeuroPsych Disorders

[Anjoom AV @AnjoomAV]

@sunwukk990 @ValerioCapraro Maybe performance is not the metric here?

[Ola Ozernov-Palchik @olaozpa]

Excited to share that our paper: ‘Precision fMRI reveals that the language network exhibits adult-like left-hemispheric lateralization by 4 years of age’ is finally published!

https://t.co/HgfrQq3zcU

https://t.co/pnaUNnmkaP

@Amanda_M_OBrien @ev_fedorenko

[Jim Fan @DrJimFan]

I promise this will be the best 20 min you spend today! Robotics: Endgame, the sequel to my last year's Sequoia AI Ascent talk, "Physical Turing Test". I laid out the roadmap for solving Physical AGI as a simple parallel to the LLM success story. Be a good scientist, copy homework ;)

And stay till the end, more easter eggs and predictions for your polymarket!

00:30 DGX-1 origin story at OpenAI, I was there in 2016 signing with Jensen and Elon. Heading to the Computer History Museum!
01:42 The Great Parallel
03:31 Robotics, the Endgame
03:39 Why VLAs fall short
04:32 Video world models as the 2nd pretraining paradigm
06:09 World Action Models (WAM)
07:46 Strategies for robot data collection and the FSD equivalent to physical data flywheel for robot manipulation
11:06 EgoScale and the Dexterity Scaling Law we discovered recently
14:00 Physical RL: bridging the last mile
15:39 DreamDojo: an end-to-end neural physics engine for scaling RL in silico
17:00 Civilizational Technology Tree and my predictions for the near future. Spoiler: it's closer than you think.

Thanks to my friends at Sequoia for inviting me back to AI Ascent this year! I had a blast! Last year's talk is attached in the thread if you missed it.

[Anjoom AV @AnjoomAV]

@BodhiCogSci How is this experiment refuting 4E?

[Anjoom AV @AnjoomAV]

Exceptional rightward bias and strength relative to phylogenetic expectations in humans is an evolutionary outlier. But, this outlier status disappears when brain size & intermembral index are included, suggesting these factors are central to the emergence of human handedness

[Chris Stringer @ChrisStringer65]

Bipedalism and brain expansion explain human handedness | PLOS Biology https://t.co/qfpx2DgmbD

[Goodfire @GoodfireAI]

Neural networks do math by rotating shapes.

We found a shape-rotating calculator hidden inside an LLM – and it’s used for more than just math! (1/6)

[Luiz Pessoa @PessoaBrain]

𝗛𝗼𝘄 𝘁𝗵𝗲 𝗺𝗼𝘂𝘁𝗵 𝗯𝗲𝗰𝗮𝗺𝗲 𝘀𝘆𝗺𝗯𝗼𝗹𝗶𝗰
The bodily origins of language, looks fantastic.
https://t.co/g8SUTW1ugy

[Nico Dosenbach @ndosenbach]

In the action-mode, arousal is heightened, attention focused externally, and plans are converted to goal-directed movements and updated based on feedback, such as pain. The brain’s action-mode is created by a dedicated action-mode network (AMN) https://t.co/KUFnXpSyIa. In the brain’s mode continuum, the AMN’s action-mode sits opposite the DMN’s default-mode for self-referential processing, counterbalancing each other as yin & yang. AMN dysfunction might be key in pain, apathy, Parkinson’s, etc. New NRN piece with Marc Raichle & @gordonneuro. Short 🧵 ⬇️

[Anjoom AV @AnjoomAV]

PGS for neurodevelopmental conditions showed only a direct genetic effect. By contrast, polygenic scores for educational attainment and cognitive performance showed no direct genetic effect, but the non-transmitted alleles in the parents were correlated with the child’s risk

[Veera Rajagopal  @doctorveera]

Polygenic basis of monogenic neurodevelopmental diseases. Identifying common variant contributions to a collection of heterogeneous rare neurodevelopmental conditions is interesting, but finding it difficult to appreciate the biological basis of this contribution. Fascinating work nevertheless.

Huang, Wigdor, et al. Nature
https://t.co/xjtSgDthJf

[Marco Giancotti @marco_giancotti]

I have aphantasia, meaning that I can't form mental images at will. Nor, in my case, sounds, smells, flavors, tactile sensations, or emotions.

When I close my eyes, I enter a blank world.

In this thread I'll try to express what that is like for those who don't have aphantasia.

[Kevin Mitchell @WiringTheBrain]

Really excited to have this new preprint out 😊, with @HenryDPotter: 𝗕𝗲𝘆𝗼𝗻𝗱 𝗺𝗲𝗰𝗵𝗮𝗻𝗶𝘀𝗺 – 𝗲𝘅𝘁𝗲𝗻𝗱𝗶𝗻𝗴 𝗼𝘂𝗿 𝗰𝗼𝗻𝗰𝗲𝗽𝘁𝘀 𝗼𝗳 𝗰𝗮𝘂𝘀𝗮𝘁𝗶𝗼𝗻 𝗶𝗻 𝗻𝗲𝘂𝗿𝗼𝘀𝗰𝗶𝗲𝗻𝗰𝗲
https://t.co/6ZdbB0n1Oj

[Nicholas Fabiano, MD @NTFabiano]

Antidepressant efficacy is inflated by the cumulative impact of publication bias, outcome reporting bias, spin, and citation bias on the evidence base.

🧵1/12

[Luiz Pessoa @PessoaBrain]

Metabolic needs and oxygenation in the brain

This speaks to the challenges of the relationship...
https://t.co/eEGDxdXl93

[ChangLabUCSF @ChangLabUcsf]

Tonal languages, spoken by a third of the global population, employ vocal pitch variations to convey distinct word meanings. What is the neural mechanism underlying these precise and highly dynamic controls of the laryngeal muscles? Our latest study answers this question. 1/6

[Anjoom AV @AnjoomAV]

@ElisaFrasnelli @cimec_unitrento Hi Elisa, is it open to international candidates?

[peter sterling @whatishealth21]

Here I repond to Dr. Aftab's complaints about my critique of physical and chemical "treatments" of the brain for mental "illness".
https://t.co/Ba7UitlGms

[Trends in Neurosciences @TrendsNeuro]

'Evolutionary neuroanatomical expansion of Broca’s region serving a human-specific function'

by Angela D. Friederici, @FriedericiLab @mpi_cbs

https://t.co/MQuz8Oqe1o

[Anjoom AV @AnjoomAV]

Come learn about how handedness modulates lateralization of spatial attention in #CogSci2023 poster session
#laterality

[Anna Ciaunica PhD @annaciaunica.bsky.social @AnnaCiaunica]

What do we actually ‘lose’ in selfless experiences ?

Check out our latest preprint with ⁦@V_Becattini⁩

We focus on somatosensory attenuation and homeostatic self-regulation in meditation

[Anjoom AV @AnjoomAV]

@tabulla_rassa @philipcball @WiringTheBrain If functions can emerge from interactions, i think goals also can