Last week, Areti Majumdar (2nd year PhD student) presented @jerrytang.bsky.social and colleague’s seminal paper on reconstructing continuous language from non-invasive brain recordings. This 🧵 explores our thoughts and questions.

New paper out: Led by super grad student Jim Zhang and in collaboration with Greg Cogan, we review and synthesize Insights into the neural mechanisms supporting cognitive stability and flexibility from human intracranial electroencephalography. For free access: authors.elsevier.com/a/1nRYWY3M3p...

Our new review paper lead by CNAP PhD Student Jim Zhang and @tobiasegner.bsky.social is now published in Neuroscience & Biobehavioral Reviews: “Insights into the neural mechanisms supporting cognitive stability and flexibility from human intracranial EEG.” doi.org/10.1016/j.ne... 1/5

Last week, Nanlin Shi (postdoctoral associate) presented T. Lei et al.’s new Nature paper, “Active dissociation of intracortical spiking and high gamma activity,” on whether intracortical HGA reflects local spiking or broader population activity.

Last week, Zac Spalding (@zspald.bsky.social‬, 4th year PhD student, @dukeubme.bsky.social‬) presented Aditya Singh and colleagues’ 2025 paper on multi-regional, multi-subject neural speech decoding using from SEEG electrodes.

Last week, Baishen Liang (postdoctoral associate) led a discussion on a recent ieeg speech paper from the Chang Lab by Patrick W. Hullett and colleagues on the frontal and temporal parallel cortical speech processing pathways.

Very excited to have you here and looking forward to working with you :)

Ladislas Nalborczyk at #CCN2026@lnalborczyk.bsky.social · 6mo ago

Exciting news! I'm starting a 6-month research stay at Duke University with @coganlab.bsky.social, exploring the neural mechanisms of verbal working memory, speech planning, and inner speech. If you are in the area and would like to meet up, feel free to reach out.

Last week, Jim Zhang (4th year PhD student, @DukeBrain ) presented Sina Tafazoli’s paper on building compositional tasks with shared neural subspaces. This 🧵 explores our thoughts (🤍 & ❔)

Come by tomorrow morning to see Baishen's work on verbal working memory!

Cogan Lab@coganlab.bsky.social · 9mo ago

Lastly (not least): Wed. Nov 19 8am-12pm: 411.11 / MM10 Sensory-motor mechanisms for verbal working memory* Postdoc Baishen Liang will be presenting his work on sensory-motor transformations for vWM @gregoryhickok.bsky.social *Also presenting at APAN

Come by this morning to see Areti's poster!

Cogan Lab@coganlab.bsky.social · 9mo ago

Next: Mon. Nov 17 8am-12pm: 173.10 / S11 Multimodal sensory-motor transformations for speech @dukeengineering.bsky.social PhD Student Areti Majumdar will be presenting her work on multimodal sensory-motor transformations for speech

At #Sfn2025 ? Come see some of the lab's posters this afternoon!

Cogan Lab@coganlab.bsky.social · 9mo ago

Coming to San Diego for SfN and/or APAN? Come check out the intracranial work from the lab (7 posters)! There's a bit of everything this year, so come say hello! #Sfn2025 #Neuroscience #neuroskyence @dukebrain.bsky.social @dukeneurosurgery.bsky.social @dukeengineering.bsky.social

Coming to San Diego for SfN and/or APAN? Come check out the intracranial work from the lab (7 posters)! There's a bit of everything this year, so come say hello! #Sfn2025 #Neuroscience #neuroskyence @dukebrain.bsky.social @dukeneurosurgery.bsky.social @dukeengineering.bsky.social

Come by tomorrow morning to hear about verbal working memory!

Cogan Lab@coganlab.bsky.social · 11mo ago

Saturday Sept. 13 11am-12:30pm, Poster Session C C54: Baishen Liang (Postdoctoral Associate) will be presenting his work on sensory-motor mechanisms for verbal working memory. Hope to see you all there!

Stop by this afternoon to see some intracranial speech decoding in the hippocampus and to say hello!

Cogan Lab@coganlab.bsky.social · 11mo ago

Friday Sept 12 4:30pm-6:00pm, Poster Session B B70: Yuchao Wang (Rotation CNAP PhD Student) will be presenting his work on auditory pseudoword decoding in the hippocampus.

Coming to DC for SNL later this week? Come check out our posters on speech decoding and verbal working memory using intracranial recordings! @snlmtg.bsky.social #SNL2025

Last week, Zac Spalding (@zspald.bsky.social‬, 4th year PhD student, @dukeubme.bsky.social‬) presented Adam Gosztolai, Robert Peach, and colleagues’ 2025 paper on MARBLE, a method for finding interpretable latent representations of neural dynamics.

MARBLE: interpretable representations of neural population dynamics using geometric deep learning - Nature Methods

MARBLE uses geometric deep learning to map dynamics such as neural activity into a latent representation, which can then be used to decode the neural activity or compare it across systems.

nature.com

Exciting work by PhD student Zac Spalding @zspald.bsky.social and multiple labs across departments at Duke! A combination of human electrophysiology, modeling/decoding, and cognitive concepts to improve BCI for speech in patients. 👏 🧠📈

Cogan Lab@coganlab.bsky.social · 12mo ago

We’re happy to present @zspald.bsky.social 's work on shared neural representations of speech production across individuals! We find that patient-specific data can be aligned to a shared space that preserves speech information, enabling cross-patient speech BCIs. www.biorxiv.org/content/10.1...

From Cogan Lab Journal Club with @zspald.bsky.social these decomposition acronyms are getting out of hand!

We’re happy to present @zspald.bsky.social 's work on shared neural representations of speech production across individuals! We find that patient-specific data can be aligned to a shared space that preserves speech information, enabling cross-patient speech BCIs. www.biorxiv.org/content/10.1...

Last week, Nanlin Shi (Postdoctoral Associate) presented Jessie Liu and colleague’s latest work on speech encoding in the middle Precentral Gyrus (mPrCG). This 🧵 explores our thoughts (🤍 & ❔) www.nature.com/articles/s41...

Speech sequencing in the human precentral gyrus - Nature Human Behaviour

Liu et al. examine the role of sustained neural activity in the planning and production of speech sequences, revealing a key role for the middle precentral gyrus.

nature.com

This week, Jim Zhang (3rd year PhD student, @dukebrain.bsky.social) presented Brooke Staveland’s paper on circuit dynamics of approach-avoidance conflict in humans. This 🧵 explores our thoughts (🤍 & ❔) www.biorxiv.org/content/10.1...

Circuit dynamics of approach-avoidance conflict in humans

Debilitating anxiety is pervasive in the modern world. Choices to approach or avoid are common in everyday life and excessive avoidance is a cardinal feature of all anxiety disorders. Here, we used in...

biorxiv.org

Last week, Areti Majumdar (1st year PhD student) presented Leyao Yu and colleagues’ new paper on two overlapping but distinct frontal networks for word retrieval. This 🧵 explores our thoughts (🤍 & ❔) doi.org/10.1016/j.ce...

Last week, @danielsexton16.bsky.social (7th year Neurosurgery Resident at Duke University) presented Linnea Evanson and colleagues' new paper on comparing the development of language from childhood to adulthood and how it relates to LLMs. This 🧵 explores our thoughts (🤍 & ❔)

Last week, Nicole Liddle (CRS, Sr. @nicoleliddle.bsky.social) presented Çatal and colleagues’ 2024 paper on the flexibility of intrinsic neural timescales during distinct behavioral states. This 🧵 explores our thoughts (🤍 & ❔): www.nature.com/articles/s42...

Flexibility of intrinsic neural timescales during distinct behavioral states - Communications Biology

Calcium imaging of spontaneously behaving mice show increased intrinsic neural timescales during behavior. The behavioral state of mice can be predicted from the topography of timescales of the cortex...

nature.com

The Cogan Lab is looking for a new clinical research specialist/research assistant! If you are interested in speech, language, and BCI and want to work with patients implanted with intracranial electrodes, reach out! www.coganlab.org/news

The Cogan Lab is looking for a new clinical research specialist/research assistant! If you are interested in speech, language, and BCI and want to work with patients implanted with intracranial electrodes, reach out! www.coganlab.org/news

Last week, Baishen Liang (postdoctoral associate) presented recent verbal working work using two-dimensional neural geometry by Fan and colleagues: www.nature.com/articles/s41... This 🧵 explores our thoughts (🤍 & ❔) :

Two-dimensional neural geometry underpins hierarchical organization of sequence in human working memory - Nature Human Behaviour

Working memory is constructive in nature. In three electroencephalography/magnetoencephalography studies, Fan et al. provide converging behavioural and neural evidence that a one-dimensional syllable ...

nature.com

Last week, @danielsexton16.bsky.social (7th year Neurosurgery Resident at Duke University) presented Jonathan Daume and colleagues' new paper on single cell phase-amplitude coupling in a working memory task. This 🧵 explores our thoughts (🤍 & ❔) www.nature.com/articles/s41...

Control of working memory by phase–amplitude coupling of human hippocampal neurons - Nature

Hippocampal theta–gamma phase–amplitude coupling integrates cognitive control and working memory storage across brain areas in humans.

nature.com

This week, Areti Majumdar (1st year PhD student) presented @vibhaviswanathan.bsky.social and colleagues’ new paper on auditory response latencies and task-related effects in diverse cortical and subcortical regions. This 🧵 explores our thoughts (🤍 & ❔) www.biorxiv.org/content/10.1...

Intracranial Mapping of Response Latencies and Task Effects for Spoken Syllable Processing in the Human Brain

Prior lesion, noninvasive-imaging, and intracranial-electroencephalography (iEEG) studies have documented hierarchical, parallel, and distributed characteristics of human speech processing. Yet, there...

biorxiv.org

Last week, Zac Spalding (3rd year PhD student, Duke BME) presented Erin Kunz, Benyamin Meschede-Krasa, and colleagues' 2024 preprint on how covert speech is represented in the motor cortex. [cont.] www.biorxiv.org/content/10.1...

Representation of verbal thought in motor cortex and implications for speech neuroprostheses

Speech brain-computer interfaces show great promise in restoring communication for people who can no longer speak[1][1]–[3][2], but have also raised privacy concerns regarding their potential to decod...

biorxiv.org