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Tim Viney

@vineytj.bsky.social
770 followers 311 following 61 posts

Associate Professor of Neuroscience, Department of Pharmacology, University of Oxford. Research Fellow, Wolfson College, Oxford. Spatial memory, cell types, amyloids, dementia, brain rhythms. Papers: tinyurl.com/5yarxuf3

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Reposted by Tim Viney
Diamond Light Source @diamondlightsource.bsky.social · 21/09/2026
Did you know that Alzheimer's disease is the most common cause of dementia, accounting for 60-80% of cases? To mark #WorldAlzheimersDay today, we asked three scientists how their beamtime at Diamond advanced their research into Alzheimer's and other dementia-causing disorders. Read their answers 👇
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Tim Viney @vineytj.bsky.social · 18/09/2026
Separate to the transplantion experiments, an important question to address first is about the mice lacking most of the cortex. How is their own consciousness impacted?
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Tim Viney @vineytj.bsky.social · 16/09/2026
In case you are interested in learning how to record and label head direction cells, read our protocol article, online now: @shanjiang.bsky.social et al. Protocol for identifying HD cells in mice using in vivo extracellular recordings and juxtacellular labeling www.cell.com/star-protoco...
cell.com
Protocol for identifying head direction cells in mice using in vivo extracellular recordings and juxtacellular labeling
Head direction (HD) cells are required for spatial orientation. Protocols that combine functional identification with anatomical recovery of single HD neurons remain technically demanding. We present ...
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Tim Viney @vineytj.bsky.social · 13/09/2026
Reminds me of Vann 2013, could be relevant elifesciences.org/articles/00736
elifesciences.org
Dismantling the Papez circuit for memory in rats
In contrast to current models, inputs from midbrain limbic structures, but not from the hippocampus, are necessary for mammillary body contributions to memory.
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Tim Viney @vineytj.bsky.social · 13/09/2026
I haven’t read the preprint yet… but this is what I would want to check: do these mice develop lacking hpc and some neocortex or is this removed in adulthood? What parts of cortex remain eg olfactory cortex, parahippocampal areas? Are there degenerating afferents in anterior thalamus? MBs intact?
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Jieyu Zheng @jieyusz.bsky.social · 10/09/2026
An acortical mouse — born without hippocampus and most of its neocortex — learns the Manhattan Maze: a 30× improvement in 5 hours, 18 rewards! Now a question for everyone: How can an acortical brain do this? Leave a comment! Preprint w/ @mameister4.bsky.social: www.biorxiv.org/content/10.6...
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Reposted by Tim Viney
The Transmitter @thetransmitter.bsky.social · 04/08/2026
The hippocampal CA3 region may not be one uniform network after all. A new preprint identifies two distinct populations of pyramidal neurons, offering a new framework for understanding how memory circuits are organized. #neuroskyence By Alissa de Chassey www.thetransmitter.org/memory/textb...
thetransmitter.org
Study reveals hidden diversity in hippocampal CA3
A new preprint identifies two distinct populations of CA3 neurons, challenging the view that the hippocampal region is a single network.
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Reposted by Tim Viney
Oxford Medical Sciences Division @medsci.ox.ac.uk · 04/08/2026
Researchers in Dept. of Pharmacology have created a short animation to help newly diagnosed families understand Niemann-Pick diseases, and connect them with support organisations worldwide. Multilingual versions available. View the animation➡️ plattlab.nsms.ox.ac.uk/npc-diseases…
Still image from the animation about Niemann-Pick Diseases
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Reposted by Tim Viney
Abid Hussaini @hussainilab.bsky.social · 02/08/2026
We're hiring! Looking for a postdoc interested in circuit mechanisms in Alzheimer's disease. #postdoc #neuroscience #alzheimers #dementia #neurodegeneration #electrophysiologist #systemsneuroscience #postdocjobs #invivo #mousemodel #newyork www.linkedin.com/jobs/view/44...
linkedin.com
Research Foundation for Mental Hygiene, Inc. hiring Research Scientist I - Center for Dementia Research in Orangeburg, NY | LinkedIn
Posted 12:00:00 AM. Job DescriptionDr. Abid Hussaini is seeking a highly motivated Postdoctoral Research Scientist to…See this and similar jobs on LinkedIn.
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Tim Viney @vineytj.bsky.social · 23/07/2026
Really interesting findings. Have you or others looked at proprioception with the same approach?
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Leah Banellis @leahbanellis.bsky.social · 23/07/2026
Sensing your body (‘Interoception’) is everywhere in theories of mental health. But when we tested how well hundreds of people sensed their heart and lungs, the link to symptoms was almost nowhere to be found. 💣 🚨New @natmentalhealth.nature.com paper 🚨🎉 asks why 🧵 www.nature.com/articles/s44...
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Reposted by Tim Viney
Earl K. Miller @earlkmiller.bsky.social · 15/07/2026
MIT Professor Susumu Tonegawa, renowned molecular biologist and Nobel laureate, dies at 86 news.mit.edu/2026/mit-pro... #neuroscience
news.mit.edu
MIT Professor Susumu Tonegawa, renowned molecular biologist and Nobel laureate, dies at 86
Susumu Tonegawa, a renowned MIT professor of biology and neuroscience and a Nobel laureate, has died at the age of 86. His discovery of how the immune system generates many different antibodies earned...
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Tim Viney @vineytj.bsky.social · 10/06/2026
www.pharm.ox.ac.uk/news/new-stu...
pharm.ox.ac.uk
New study reveals specialised subpopulations of head direction cells in the mouse thalamus
Researchers from the Viney Group in the Department of Pharmacology, along with collaborators from The Center for Systems Neuroscience, Boston University, US, have identified distinct subpopulations of...
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Tim Viney @vineytj.bsky.social · 10/06/2026
Brain cells critical for mouse navigation found to be highly specialised www.ox.ac.uk/news/2026-06... @oxneuro.bsky.social @medsci.ox.ac.uk
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Tim Viney @vineytj.bsky.social · 10/06/2026
New paper out in Current Biology. We define thalamic head direction (HD) cells based on the combination of neurochemical identity, physiology, sensorimotor responses, and connectivity, suggesting cell types. Great work led by Sara Hijazi and Shan Jiang from the lab. www.cell.com/current-biol...
cell.com
Diversity and sensorimotor specialization of head direction cells in the mouse thalamus
Hijazi and Jiang et al. identify distinct head direction (HD) cell subpopulations in the mouse anterodorsal thalamic nucleus, based on the combination of firing patterns, connectivity, and neurochemic...
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Tim Viney @vineytj.bsky.social · 28/05/2026
Thanks for sharing, these 'healthy' EEG recordings could indeed be related to the thalamic oscillations and good the author discussed muscle artifacts.
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Tim Viney @vineytj.bsky.social · 28/05/2026
Interesting paper with a good no. of thalamic recording sites. Really useful they have the pupil dynamics. Only skim read, but would be useful to know sites of epilepsy and if these directly connect to central thalamus. What nuclei are likely ‘central thalamus’ - PVT, PT, ADn? Any raw LFP data?
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Earl K. Miller @earlkmiller.bsky.social · 28/05/2026
Thalamic recordings show a rhythm that’s strong in wake and REM and absent in deep sleep: An electrophysiological signature of conscious states. www.nature.com/articles/s41... #neuroscience
nature.com
Thalamic oscillations distinguish natural states of consciousness in humans - Nature Human Behaviour
Chowdhury et al. report the discovery of a 19–45-Hz thalamic oscillation that is present during human wakefulness and REM sleep, but not NREM sleep.
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Reposted by Tim Viney
Prof Sarah-Jayne Blakemore @sjblakemore.bsky.social · 04/03/2026
Fascinating interview with @utafrith.bsky.social www.tes.com/magazine/tea...
tes.com
Uta Frith: why I no longer think autism is a spectrum
The autism spectrum has widened to the point of collapse, affecting how teachers should support autistic pupils in the classroom, researcher Uta Frith tells Helen Amass
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Tim Viney @vineytj.bsky.social · 10/02/2026
I don't know how many people see this when they look at trees during the winter, but mistletoe always reminds me of amyloid plaques - mistletoe is a parasite and each 'plaque' can vary in size. This is how I think of the 3D structure of amyloid plaques in the brain
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Reposted by Tim Viney
University of Oxford @ox.ac.uk · 09/02/2026
Epilepsy is one of the most common neurological disorders, affecting roughly 50 million people around the world. Researchers at Oxford are looking at how epilepsy can be prevented, diagnosed and treated ⬇️ #InternationalEpilepsyDay
ox.ac.uk
Epilepsy and the brain
Experts at Oxford are looking at how epilepsy can be prevented, diagnosed and treated, as well as promoting awareness of the condition to reduce stigma and improve quality of life for people with epil...
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Reposted by Tim Viney
Cell - a Cell Press journal @cp-cell.bsky.social · 23/01/2026
Now online! Peripheral cancer attenuates amyloid pathology in Alzheimer’s disease via cystatin-c activation of TREM2
dlvr.it
Peripheral cancer attenuates amyloid pathology in Alzheimer’s disease via cystatin-c activation of TREM2
Peripheral cancer inhibits amyloid pathology and rescues cognition of Alzheimer’s disease through secretion of cystatin-c (Cyst-C), which binds amyloid oligomers and activates TREM2 in microglia and enables microglia to degrade pre-existing plaques.
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Reposted by Tim Viney
Desdemona Fricker @desdemonafricker.bsky.social · 05/01/2026
Coincidence of thalamic HD signal and retrosplenial visual input is detected in the Presubiculum! 🎯 This may be the neuronal basis for landmark anchoring of the HD signal. Pleased to announce the VOR is now available elifesciences.org/articles/92443 Congrats first author Louis Richevaux 🙌
elifesciences.org
Projection-specific integration of convergent thalamic and retrosplenial signals in the presubicular head direction cortex
Nonlinear dendritic integration in single presubicular neurons provides a mechanism for combining vestibular-based head-direction signals and visual landmark signals to anchor the brain’s internal com...
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Tim Viney @vineytj.bsky.social · 05/12/2025
Great to read about this - I always enjoyed talking with Tarje at college and how enthusiastic he can be. Delighted that this project has resulted in such an important programme
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Reposted by Tim Viney
George Monbiot @georgemonbiot.bsky.social · 05/12/2025
1. Some good news at last. This week’s column is about the amazing thing a couple of us stumbled into three years ago, which we’ve now developed into a global research programme. It doesn’t change everything, of course, but it could help change quite a lot. + 🧵 www.theguardian.com/commentisfre...
theguardian.com
Over a pint in Oxford, we may have stumbled upon the holy grail of agriculture | George Monbiot
I knew that a revolution in our understanding of soil could change the world. Then came a eureka moment – and the birth of the Earth Rover Program, says Guardian columnist George Monbiot
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Tim Viney @vineytj.bsky.social · 03/12/2025
Moon halo (22°) tonight in UK. Apparently this illusion is created by millions of hexagonal ice crystals in upper atmosphere
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Tim Viney @vineytj.bsky.social · 21/11/2025
We conclude that selective accumulation of ptau in the anterodorsal thalamic nucleus disrupts head direction signaling, leading a change in orienting behaviour during initial spatial learning. Dysfunction of thalamic head direction cells may be a 'preclinical' cognitive biomarker of dementia
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Tim Viney @vineytj.bsky.social · 21/11/2025
We expressed mutant human tau in the anterodorsal nucleus of the mouse thalamus, which contains a high density of head direction cells. These mice exhibited spatial disorientation during initial spatial learning, which could be explained by lower directionality of cells recorded in this nucleus
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Tim Viney @vineytj.bsky.social · 21/11/2025
Spatial disorientation is an early sign of dementia. What neural circuit mechanism explains this? We previously found that the human anterodorsal nucleus of the thalamus is highly vulnerable to pathological tau (ptau), even before ptau spreads across the cortex. link.springer.com/article/10.1...
link.springer.com
Early and selective localization of tau filaments to glutamatergic subcellular domains within the human anterodorsal thalamus - Acta Neuropathologica
Widespread cortical accumulation of misfolded pathological tau proteins (ptau) in the form of paired helical filaments is a major hallmark of Alzheimer’s disease. Subcellular localization of ptau at v...
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Tim Viney @vineytj.bsky.social · 21/11/2025
***Publication alert*** "Pathological tau alters head direction signaling and induces spatial orientation" www.cell.com/cell-reports...
Title page of our paper
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Tim Viney @vineytj.bsky.social · 11/11/2025
Reposting some comments via the Science Media Centre on the UK government's ambition of phasing out animal testing in the UK. I think it is important for scientists to explain to policymakers and the public about pharmacodynamics and pharmacokinetics - complex interactions between drugs and the body
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Reposted by Tim Viney
Baptiste Lacoste @blacoste.bsky.social · 07/11/2025
#astrocytes #endothelium #cerebrovascular 😱🤩🤩
nature.com
Molecular profiling of brain endothelial cell to astrocyte endfoot communication in mouse and human - Nature Communications
Deciphering body-brain communication pathways is key to a deeper understanding of brain physiology and pathology. Here, the authors define the astrocyte endfoot proteome and show dynamic vascular-to-a...
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Tim Viney @vineytj.bsky.social · 24/10/2025
This is really interesting. These bacteria form biofilms, which are essentially amyloids
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Reposted by Tim Viney
Dorothy Bishop @deevybee.bsky.social · 20/10/2025
New blogpost on my concerns about Wellcome LEAP new $50m program on autism/microbiome links. deevybee.blogspot.com/2025/10/a-le... #autism #microbiome #biomarkers #diagnostic
deevybee.blogspot.com
A LEAP into the future, or off a cliff: Wellcome LEAP's new $50M program
A few days ago, I saw this post on LinkedIn: How does the gut microbiome shape early brain development? That’s what FORM, a new $50 million...
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Tim Viney @vineytj.bsky.social · 08/10/2025
This is a strange and surprising finding. Need to study the electron micrographs in the suppl material carefully (without the colourful shading) to learn more. Note that neurons can have cilia, I wonder if this is what they have detected e.g. recent review here: doi.org/10.1016/j.tc...
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Tim Viney @vineytj.bsky.social · 02/10/2025
After many months of work on the revision, we have a paper accepted today (pending minor revisions). Also had a paper rejected at the same time (but going to ignore this email for today!)
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Reposted by Tim Viney
The Guardian @theguardian.com · 01/10/2025
Jane Goodall, world-renowned primatologist, dies aged 91
theguardian.com
Jane Goodall, world-renowned primatologist, dies aged 91
Jane Goodall Institute says ‘tireless advocate’ for natural world died in California during US speaking tour The world-renowned primatologist Jane Goodall has died at the age of 91, her institute has said. The Jane Goodall Institute announced that she had passed away of natural causes while in California as part of a US speaking tour. Continue reading...
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Institute of Psychiatry, Psychology & Neuroscience @kingsioppn.bsky.social · 26/09/2025
What do we know about the causes of #autism? @kingscollegelondon.bsky.social Professor Laura Andreae speaks with BBC Radio 4's Inside Science about the genetic factors behind autism, particularly around twin studies. 🔊 Listen now: www.bbc.co.uk/sounds/play/...
bbc.co.uk
BBC Inside Science - The science behind autism - BBC Sounds
What do we know about the causes of autism?
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Tim Viney @vineytj.bsky.social · 24/09/2025
This is incredible news! It is also a good example of why it is so important to identify and define the most vulnerable brain regions and cell types for a given disease. In this case it is medium spiny neurons of the striatum.
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Reposted by Tim Viney
RCSB Protein Data Bank @rcsbpdb.bsky.social · 19/09/2025
September 21 is #WorldAlzheimersDay Alzheimer's disease and prion diseases are linked to unnatural aggregation of proteins into amyloid fibrils.
pdb101.rcsb.org
PDB101: Molecule of the Month: Amyloids
Alzheimer's disease and prion diseases are linked to unnatural aggregation of proteins into amyloid fibrils.
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Tim Viney @vineytj.bsky.social · 17/09/2025
Thanks Abhilasha! And still using the same amplifiers. ADn HD cells also have a distinctive sound that is different from neurons in AV, DG, LD, etc.
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Reposted by Tim Viney
Adrien Peyrache @apeyrache.bsky.social · 16/09/2025
🚨New preprint alert! The thalamus has long been seen as a relay of sensory signals to cortex. But could it also generate its own structured activity? Our study explores this question in the head-direction (HD) system. Some explanation 🧵👇 1/13 www.biorxiv.org/content/10.1...
biorxiv.org
Coherent dynamics of thalamic head-direction neurons irrespective of input
While the thalamus is known to relay and modulate sensory signals to the cortex, whether it also participates in active computation and intrinsic signal generation remains unresolved. The anterodorsal...
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Tim Viney @vineytj.bsky.social · 15/09/2025
We suggest this ‘HD hub’ consists of different cell types and circuits, acting as ‘parallel channels’ coordinating sensory-modulated updates of the head direction for spatial navigation. 11/11
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Tim Viney @vineytj.bsky.social · 15/09/2025
Type III HD cells were highly unusual as they avoided the TRN and projected ventrally to the cortex. These cells had distinctive twisted dendrites, were CR+, and were located in the dorsomedial ADn. 10/11
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Tim Viney @vineytj.bsky.social · 15/09/2025
We found 3 types of projection patterns: type I HD cells formed collaterals in the thalamic reticular nucleus (TRN) and cortex, projecting via the striatum and cingulum bundle. Type II HD cells additionally innervated the dorsomedial striatum. 9/11
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Tim Viney @vineytj.bsky.social · 15/09/2025
We found a mediolateral gradient of calretinin (CR)-expressing HD cells, with CR+ cells tending to have narrower HD tuning widths, lower firing rates, and produced fewer spikes during rebound bursts compared to CR- cells. 8/11
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Tim Viney @vineytj.bsky.social · 15/09/2025
We confirmed that HD cells could respond to sound stimuli, but found that not all cells were responsive, suggesting cell-type-specificity. Also, some sound-responsive cells were ‘boosted’ by muscle twitches. Other HD cells strongly increased or decreased firing during running periods. 7/11
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Tim Viney @vineytj.bsky.social · 15/09/2025
We recorded HD cells with a range of short-latency responses to light pulses e.g. ‘ON inhibition OFF excitation’, or ‘ON excitation’. We suggest these patterns could help anchor various allocentric cues. 6/11
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Tim Viney @vineytj.bsky.social · 15/09/2025
We used single neuron extracellular recordings and juxtacellular labelling to define the firing patterns, neurochemical profiles, and connectivity of individual HD cells in the ADn of awake mice. 5/11
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Tim Viney @vineytj.bsky.social · 15/09/2025
Interestingly, some but not all HD cells stop firing when the animal is held by the experimenter (Taube, J Neurosci 1995) and others increase firing in response to sensory stimuli (Blanco-Hernandez et al, Nat Neuro 2024). This hints at some diversity of thalamic HD cells. 4/11
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