#cogneuro — Public Fediverse posts

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A global emergent workspace in language models (J-space) https://www.anthropic.com/research/global-workspace

J-space wasn’t designed or programmed. It emerged on its own during training process. J-space has a number of unique properties:

- Claude can report on these representations. If you ask Claude what it's thinking about, it will tell you what’s in the J-space. Non-J-space representations are less reportable.

- It can also modulate them on request. If you ask Claude to think about something, or solve a problem silently in its head, it will light up the appropriate patterns in its J-space. By contrast, it has trouble modulating patterns not in the J-space.

- Claude uses its J-space for internal reasoning. If you ask Claude to solve a problem that requires multiple steps, the intermediate steps will light up in its J-space, even when it doesn’t say them out loud. These J-space patterns causally mediate its performance in such tasks, despite being smaller in magnitude than other representations.

- Representations in the J-space can be used flexibly for many tasks—for example, once “France” has lit up in Claude’s J-space, the model can recall its capital, or its national currency, or the continent it belongs to.

- However, despite its important role, the J-space is not involved in most of what a language model does—speaking fluently, recalling simple facts, using correct grammar, etc. In experiments where we prevented Claude from using its J-space, it still interacted normally, but lost its higher-order cognitive functions.

Full Paper:
https://transformer-circuits.pub/2026/workspace/index.html

External commentary https://www-cdn.anthropic.com/files/4zrzovbb/website/cc4be2488d65e54a6ed06492f8968398ddc18ebe.pdf

#consiousness #cogneuro #LLM #AI #cogneuro #cognitive #cognitiveNeuroscience

Surely, I can't be the first person to have made this pun.
I'm sure language change will do it's thing and it will soon be 'The Marr the Marrier'.
#Marr #cognition #cogneuro #Marrslevels #languagechange #historicallinguistics

@sandervanbree gave a talk at @CCNiUofGlasgow today presenting his recent Perspectives paper on Neural Mechanisms in Cognitive Neuroscience
📄: https://journals.sagepub.com/doi/10.1177/17456916231191744

He combines Marr's 3 levels with ideas from mechanistic philosophy to explain which mechanisms produce specific computations in the brain 🧠.
To understand a system, counterfactual knowledge is required (i.e. how it behaves with some wiggle room).

#neuroscience #cognitiveneuroscience #cogneuro #cognition

Three years in the making - our big review/opinion piece on the capabilities of large language models (LLMs) from the cognitive science perspective.

Thread below! 1/

#AI #cogneuro #NLP #LLMs #languageandthought

https://arxiv.org/abs/2301.06627

I'm setting up my new #EEG system along with @psychtoolbox and want to test its accuracy (e.g., time delays between triggers, EEG signals, sounds & images). Back in the day, I used oscilloscopes & light sensors, but that was laborious. Which protocols/equipment does your lab use?
#cognitiveneuroscience #NeuroScience #cogneuro

MIT News covered our latest study of computer programming in the brain 🙂

https://news.mit.edu/2022/your-brain-your-brain-code-1221

#fmri #programming #cogneuro #deeplearning #NeurIPS2022

This project has been a major part of my academic life since 2016....

New Therapeutics in Alzheimer’s Disease Longitudinal Cohort study (NTAD)

Repeated measures #MEG #EEG data from participants with #Alzheimers disease/#MCI + controls

An absolutely heroic amount of work from a big team - recruitment is closed, baseline data collection is complete and now the protocol paper is out!

https://bmjopen.bmj.com/content/12/12/e055135

Looking forward to research coming next year..

#oscillations #opendata @eeg #cogneuro

#introduction I've been here for a few weeks, but have yet to introduce myself! I'm a #cogneuro & #quantpsych researcher at The University of Utah studying #pain #perception & #emotion with a focus on how perceptual and emotional processes interact over time using #psychophysics #intensivelongitudinalmethods #DynamicSystems #bayesianestimation . Lover of all things time #timeperception #temporalanalysis and quant. I love #Stats & #Programming , and enjoy teaching these methods to others.

#introduction

Hi! I'm a cog psychologist at the Uni of Sheffield, UK, investigating individual differences in cog abilities and how they change (or even improve?!) through experience, using methods from experimental and differential cog psy, & sometimes cog neuro and comp modelling.

A major current project in our lab is a multi-site processing speed training study across the adult life-span using drift-diffusion modelling, so stay tuned!

#cogpsy #cogneuro #workingmemory #ef #gf #modelling

@aazad

Found this (autogenerated?) list of 31 —not 35!— #neuropods
https://blog.feedspot.com/neuroscience_podcasts/

Top of my mind 3 not listed:

1 On Consciousness
by Bernard Baars w/ Natalie Geld & David Edelman
https://bernardbaars.com/podcast-baars-on-consciousness/

2 Neuro Transmissions
by @micah_psych & Alie Caldwell
https://neurotransmissions.science/

3 Neuroscience & Philosophy Salon
by @PessoaBrain & Co
https://www.youtube.com/@neurosciencephilosophysalo5410

#neuroscience
#neurodon
#neuro
#cogneuro
#cognition
#cogsci

@neuro
@neuroscience @cognition
@cogsci
@cogneurophys

Applying to PhD programs? Check out the #UCSanDiego Cognitive Science dept! We are very interdisciplinary, with research in #cognition, #language, #neuroscience, #development, #computation, #design, #EEG, #fMRI, #machinelearning, #oscillations, #systemsneuro, #cogneuro, and more! Feel free to reach out with questions.

https://cogsci.ucsd.edu/graduates/phd-program/admissions/index.html#Admission-Information

#introduction #cogneuro #language

Hello! I am a researcher at MIT studying the relationship between language and other aspects of human cognition. I do so using (a) cognitive neuroscience and (b) studies of large language models. I'm originally from Russia but have lived in the US for over a decade. Attaching a gif of my brain just for fun.

https://anna-ivanova.net/

@kaitclark Could you add me? #fMRI #cogneuro #stress #neurodevelopment

Here is my #introduction. I'm Professor of Biomedical Engineering and Neuroscience at Vanderbilt University. I study the neural basis of cognitive function, cognitive development and plasticity. Most recently I have used deep brain stimulation targeting the cholinergic forebrain as a means of improving cognitive function.
#NeuroscienceMigration
#neuroscience
#cogneuro
#BME

Once I figre this thing out, I'll likely be posting lots of #rstats #neuro #cogneuro and #rse stuff

#CNS2016 - Connectome -- DEBATE!! Packed room #cogneuro #neuroscience #science in action https://t.co/k0LBPl84yZ

#CNS2016 - Connectome -- DEBATE!! Packed room #cogneuro #neuroscience #science in action https://t.co/k0LBPl84yZ