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Claire O'Callaghan

@claireocallaghan.bsky.social

Working in neuroscience etc. Sydney, Australia

59 Posts1310 Follower1305 Folgt
Mara Mather@maramather.bsky.social · 4d ago

Starting September 1, I will be working with a team to start a new research center at the Max Planck Institute for Human Development in Berlin. We currently have a couple of positions posted but there will be more so if you are interested stay tuned and feel free to get in touch.

Max Planck Institute for Human Development@mpib-berlin.bsky.social · 2mo ago

📣 New research center on the horizon! The Center will study how midlife autonomic changes may contribute to #neurodegenerative disease risk, focusing on the locus coeruleus, #Alzheimer’s biomarkers, and emotion–cognition interactions. Interested? CAAN-Job openings 👇 www.mpib-berlin.mpg.de/career

Eliza Bliss-Moreau@eblissmoreau.bsky.social · 2w ago

1/ New paper out today from my group, in @natneuro.nature.com, in which we review the anatomical & functional data on insula structure across species. This was a "whole lab" project led by @joeycharbonneau.bsky.social. It's been a 5 year in the making (a full 3 years in review)! rdcu.be/fyd7T

Comparative insights into insula structure and function

Nature Neuroscience - Charbonneau et al. compare how the insula is structured and functions in humans, monkeys and rodents, revealing similarities and differences across species that are likely to...

rdcu.be

Helen Barron@helencbarron.bsky.social · 3w ago

***New preprint from the lab*** showing “Generative replay across hippocampal-neocortical circuits”. In sleep we show spiking sequences in V1 (sensory neocortex!) that represent information that has not been directly experienced www.biorxiv.org/content/10.6... @bndu.ox.ac.uk @ndcnoxford.bsky.social

Generative replay across hippocampal-neocortical circuits

To make flexible decisions, the brain needs to make inferences between events that were not directly experienced together. In sharp-wave ripple (SWR) events, during periods of rest and sleep, spiking ...

biorxiv.org

Emre Yaksi@emreyaksi.bsky.social · last mo.

🧠 A new paper from our lab is out! In this study, we explore how dorsal raphe nucleus (DRN) circuits modulate forebrain activity and behavior. www.nature.com/articles/s41...

Topographically organized dorsal raphe activity modulates forebrain sensory-motor representations and contributes to defensive behaviors - Nature Communications

Functional heterogeneity of dorsal raphe nucleus is not fully understood. Here authors show topographically organized sensory and locomotor responses from the zebrafish dorsal raphe and its forebrain ...

nature.com

Lorenzo Posani@lorenzoposani.com · last mo.

Out today on @nature.com! Connecting neural specialization, population geometry, and their functional implications across the cortical hierarchy. So grateful for this beautiful and fun collaboration with @shuqiw.bsky.social, S Muscinelli, L Paninski, and @stefanofusi.bsky.social!

Rarely categorical, highly separable representations along the cortical hierarchy - Nature

Cortical circuits prioritize diversity over categorical structure, supporting a computational regime geared towards high-dimensional, highly separable neural representations.

nature.com

Ye Lab@liye-tsri.bsky.social · 2mo ago

Our new preprint is out!! The human brain runs on ~20 watts. Computers and modern AI systems require vastly higher energy. This gap raises a fundamental question: how does the brain compute so efficiently? In our new study, we take a critical step toward measuring and understanding this directly 1/3

bioRxiv Neuroscience@biorxiv-neursci.bsky.social · 2mo ago

Learning Shapes the Energy Cost of Neural Tasks https://www.biorxiv.org/content/10.64898/2026.07.01.735889v1

Neuron@cp-neuron.bsky.social · 2mo ago

Higher-order thalamic bursts are drivers of attention control

Higher-order thalamic nuclei are critical in cognition and generate spike sequences termed bursts. The role of bursts in cognition is unknown. We found that pulvinar bursts are attention-modulated, predict behavior, and influence the cortex. Pulvinar electrical microstimulation triggered bursts that enhanced target detection, revealing mechanistic thalamic control over the cortex and behavior.

dlvr.it

Peter Rupprecht@ptrrupprecht.bsky.social · 2mo ago

The YouTube channel of @kurzgesagt.org made a great and accessible video on how memories are stored in our brains. I wrote a blog post to provide additional context and details for those interested in the view of a neurophysiology researcher: gcamp6f.com/2026/06/22/w...

What happens inside your brain when you form a memory?

Kurzgesagt is a Youtube channel that breaks down science topics for a broad audience. They have great videos, both in terms of narrative, animation, and scientific accuracy. A few days ago, the cha…

gcamp6f.com

@davidweinshenker.bsky.social · 2mo ago

Interested in how dysregulation of locus coeruleus-norepinephrine circuits contribute to neuropsychiatric symptoms in early Alzheimer's disease? Check out our new review article from freshly minted Dr. Anu Korukonda! www.nature.com/articles/s41...

A new hope: locus coeruleus-norepinephrine system at the nexus of neuropsychiatric symptoms - Molecular Psychiatry

Molecular Psychiatry - A new hope: locus coeruleus-norepinephrine system at the nexus of neuropsychiatric symptoms

nature.com

Bohan Zhao@bohanzhao.bsky.social · 3mo ago

So I built a small tool that merges Allen CCFv3 with the traditional bregma-relative coordinate system (calibrated with Paxinos & Franklin's Atlas). Click any coronal or sagittal section, and get coordinates instantly. bohanzhao.com/Atlas Hope it saves someone a headache 🐭

Mouse Brain Stereotaxic Coordinate Viewer

Free interactive tool: enter bregma-relative AP/ML/DV coordinates to navigate Allen Mouse Brain Atlas coronal and sagittal sections. Brain regions identified in real time.

bohanzhao.com

Peter Rupprecht@ptrrupprecht.bsky.social · 3mo ago

In this new blog post, I review some several recent studies on dendritic voltage and calcium imaging in hippocampus: gcamp6f.com/2026/05/19/d... Great work by @bhlee1117.bsky.social, Xiang Wu, @adamezracohen.bsky.social, Attila Losonczy, Balazs Rosza, Kevin Gonzalez, and others!

Dendritic imaging of pyramidal neurons in mouse hippocampus

Dendrites are the tree-like arborizations of neurons through which they receive input from other neurons. This compartmentalized anatomy has given rise to the idea that individual dendrites process…

gcamp6f.com

Eduardo Maristany de las Casas@maristanye.bsky.social · 3mo ago

1/10 When the going gets tough, the dendrites get going. Here is a summary on our new paper just published in @science.org on flexible learning in frontal motor cortex. With @mattlark.bsky.social 🔬. #neuroskyence #neuroscience 🔗 doi.org/10.1126/scie...

Tuft dendrites in frontal motor cortex enable flexible learning

Flexible learning relies on integrating sensory and contextual information to adjust behavioral output in different environments. The anterolateral motor cortex (ALM) is a frontal area critical for ac...

doi.org

Melissa Cooper, PhD@melcooperphd.bsky.social · 4mo ago

Astrocytes do so much more than any of us thought - they even communicate among specific brain regions across hemispheres! The journey to this paper spanned nearly a decade, but I'm most excited to see what everyone else does with the tools we've built. There's so much for all of us to explore!

Astrocytes connect specific brain regions through plastic networks - Nature

Communication between distant brain regions is mediated by plastic networks of gap junction-coupled astrocytes.

nature.com

Mike Le Pelley@mikelepelley.bsky.social · 4mo ago

We're hiring! Looking for a postdoc to work at UNSW Sydney, studying impacts of reward and information on attention, using eye-tracking, EEG, and modelling - with Kelly Garner, Daniel Pearson and me. Application link below, please spread the word! external-careers.jobs.unsw.edu.au/cw/en/job/53...

Research Associate - Psychology

The Research Associate (Level A) is expected to contribute towards the research effort of UNSW and to develop their research expertise through the pursuit of defined projects relevant to their particu...

external-careers.jobs.unsw.edu.au