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Marie K Holt

@mkbholt.bsky.social
203 followers 240 following 20 posts

Behavioural neuroscientist interested in stress and food intake | New PI at Warwick University | Dane in the UK

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Marie K Holt @mkbholt.bsky.social · 05/01/2026
Postdoc job alert! Come work with me on my MRC-funded fellowship on stress and appetite 🧠🌭 at @warwicklifesci.bsky.social 5 years of behaviour, circuit manipulations, neuroanatomy, electrophysiology and transcriptomics👨‍🔬🤓 Oh and Warwick is beautiful😍 Info here: tinyurl.com/yzmf24r3 Please share.
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Marie K Holt @mkbholt.bsky.social · 02/10/2025
Such a creative approach!
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Ardem Patapoutian @ardemp.bskyverified.social · 18/09/2025
New preprint alert! The uterus expands ~500-fold in pregnancy, yet we know little about how pressures are sensed. Led by @yunxiao-dr.bsky.social, we show PIEZOs are required for contractions and birth in mice, with dual roles of PIEZO1 in muscle and PIEZO2 in neurons www.biorxiv.org/content/10.1...
biorxiv.org
PIEZO channels link mechanical forces to uterine contractions in parturition
Mechanical forces are extensively involved in pregnancy and parturition, but their precise roles and mechanisms remain poorly understood. Here, we identify mechanically activated ion channels PIEZO1 a...
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Nils Kroemer @nbkroemer.bsky.social · 08/09/2025
When we encounter the same reward repeatedly, we show variable responses; is this just noise? In our new preprint, we replicate the association of BMI and disinhibited eating with variability of NAcc signals to reward. #neuroskyence 🩺 W/ @akuehnel.bsky.social www.medrxiv.org/content/10.1...
The figure depicts the study rationale and procedures. We anticipated differences in reward sensitivity across groups varying in symptoms of binge eating, specifically in the variability. Patients with binge eating disorder (BED) have a higher variability in food wanting ratings during the effort allocation task in the behavioral session. Participants with a higher body mass index (BMI) show elevated variability of anticipatory cue responses in the nucleus accumbens (NAcc).
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Aidan Horner @aidanhorner.bsky.social · 21/07/2025
2 Lecturer (Assistant Prof) positions available @yorkpsychology.bsky.social! Come join our department! #neuroskyence #cognition #psychscisky #neurojobs jobs.york.ac.uk/vacancy/lect...
jobs.york.ac.uk
Jobs - The University of York
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Micah G. Allen @micahgallen.com · 27/08/2025
Are interoception and mental health linked? Many assume so, with interoception even described as a psychiatric “p-factor.” But in our latest preprint, we were surprised to find little evidence for such a connection. www.medrxiv.org/content/10.1... 🧵 Thread with our reflections on the matter 👇
medrxiv.org
Interoceptive Ability is Unrelated to Mental Health Symptoms: Evidence From a Large Scale Multi-Domain Psychophysical Investigation
Interoception-the sensing and perception of the internal viscera-is widely cast as a transdiagnostic mechanism linking brain-body interaction to mental illness. Prevailing models propose that altered ...
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Micah G. Allen @micahgallen.com · 28/08/2025
the tldr of my thread is that, interoceptive sensing at rest has no relationship to mental health symptoms, and we think this is likely because we need to measure interoception during and after arousal, close in time to symptoms, with ecological measures.
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Nicolas Chiaruttini @nkiaru.bsky.social · 24/07/2025
Hey, it's out! doi.org/10.1016/j.ce... Aligning Big Brains and Atlases, ABBA in short, is published in Cell Reports @cp-cellreports.bsky.social . @biancasilvalab.bsky.social's lab added an analysis pipeline on top of it (BraiAn) and did all the relevant biological work. What is it ? Short thread:
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Micah G. Allen @micahgallen.com · 13/07/2025
Modern theories of emotion (especially “interoceptive inference”) often cite William James as a key inspiration. But what did James actually say about emotion, and is it supported by the data? Here’s a brief look at the core arguments and classic evidence. 🧵
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Jamie Hanson @jamielarsh.bsky.social · 26/06/2025
Gut microbiome is associated with insula structure in neonates www.sciencedirect.com/science/arti...
sciencedirect.com
Gut microbiome is associated with insula structure in neonates
The infant brain and gut microbiome both develop rapidly in early infancy. Growing evidence indicates that the gut microbiome plays a critical role in…
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Marie K Holt @mkbholt.bsky.social · 26/06/2025
First go at expansion microscopy (bar the one time we accidentally washed the tissue down the sink...) and look at that neuron!😍
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Eric Topol @erictopol.bsky.social · 25/06/2025
How nerve cells transfer their powerhouse mitochondria to fuel cancer cells @nature.com www.nature.com/articles/d41... www.nature.com/articles/s41...
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Marie K Holt @mkbholt.bsky.social · 23/06/2025
Still a week to go to apply for our open position in Mammalian Neuroscience at University of Warwick!
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Zane Andrews @zane-andrews.bsky.social · 19/06/2025
We created a photometry python package for unbiased standardised post-hoc analysis using bootstrapping confidence intervals No more AUC or time bins analysis! Ever Follow our simple step by step instructions. @foldi.bsky.social @philjrdb.bsky.social www.biorxiv.org/content/10.1...
biorxiv.org
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Gerome Breen @psychgenomics.bsky.social · 17/06/2025
Excited about our new preprint: 1st successful genome-wide study of >61,000 panic attack and 29,000 panic disorder cases. www.medrxiv.org/content/10.1... We find 17 associations & evidence that peripheral neurons in eye, lungs and heart are involved in panic & other psychiatric disorders 1/n
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Abby Polter @ampolter.bsky.social · 12/06/2025
New work from my lab looking at how dopamine neurons are affected by stress and males and females! This paper comes to you through three rounds of major building construction, a pandemic, six months that we could not get TTX, some animal facility shenanigans and now is here on your internet!
onlinelibrary.wiley.com
Sex‐Specific Adaptations to VTA Circuits Following Subchronic Stress
Subchronic variable stress, a paradigm shown to have divergent behavioral effects in males and females, induces shared and distinct physiological adaptations in the VTA. While both males and females ...
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Marie K Holt @mkbholt.bsky.social · 16/06/2025
Assistant Prof/Associate Prof position in Mammalian Neuroscience! 👩‍🔬👨‍🔬 My department is hiring! Closing on June 30th. Please repost widely! www.jobs.ac.uk/job/DNK944/a...
jobs.ac.uk
Assistant or Associate Professor in Mammalian Neuroscience (110565-0625) at University of Warwick
Start your UK & international job search for academic jobs, research jobs, science jobs and managerial jobs in leading universities and top...
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Maurice Elphick @mauriceelphick.bsky.social · 23/05/2025
Here in the School of Biological & Behavioural Sciences at QMUL we are seeking to appoint a Teaching Fellow in #Bioinformatics. Please spread the word and encourage applications from suitable candidates. Deadline for applications is June 4th. qmul-jobs.tal.net/vx/appcentre...
qmul-jobs.tal.net
Teaching Fellow in Bioinformatics - QMUL Jobs
ID: 6278. Title: Teaching Fellow in Bioinformatics. Application Deadline:
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Mathias V. Schmidt @mathiasvschmidt.bsky.social · 23/05/2025
Excellent review by @talliezee.bsky.social and Matthew T. Birnie on the neurobiological mechanisms underlying the consequences of early life adversity. Highly recommended! www.cell.com/neuron/fullt...
cell.com
The evolving neurobiology of early-life stress
This review explores the effects of early-life stress on brain development and cognitive function, highlighting gaps in understanding perceived stress, vulnerable developmental stages, underlying mole...
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Michael Baym @baym.lol · 14/05/2025
Yesterday, the NIH R35 “Outstanding Investigator” grant to fund scientists in my lab studying antibiotic resistance was terminated for reasons not related to the content of the science, or any actions taken by me or members of my lab
A screenshot of the termination notice showing "Outstanding Investigator Grants"A screenshot of the termination notice with "This award is terminated effective the date of this award, due to unsafe antisemitic actions that suggest the institution lacks concern for the safety and wellbeing of Jewish students." highlighted
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Thiago Carvalho @cyrilpedia.bsky.social · 12/05/2025
“The visa fees are so exceedingly high that it makes coming here very difficult for some people. We are fishing for the best scientists in the world. They want to come and work here because we are such an effective country at science, but if we have these high costs, they can and will go elsewhere.”
observer.co.uk
Is the UK paying the price for world’s most expensive visas? | The Observer
Competing political and economic goals on immigration are resulting in the loss of valuable skills and talent in the UK
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Sam Woodburn @samcwoodburn.bsky.social · 13/05/2025
Microglia are often framed as driving maladaptive behavior in stress and depression, but what if they're important for treatment as well? In the final project from my graduate studies, we explored whether microglial BDNF supports the effects of low-dose ketamine. www.biorxiv.org/content/10.1...
biorxiv.org
Microglial brain-derived neurotrophic factor (BDNF) supports the behavioral and synaptogenic effects of ketamine
Microglia have been implicated in the pathogenesis for several psychiatric disorders, yet comparatively little is known about their role in treatments for these conditions. Prior work showed that the ...
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Kate Jeffery @katejj.bsky.social · 08/05/2025
Brain/behaviour people - come to beautiful Scotland - we are recruiting in psychology and neuroscience across all grades! Closes May 12. Details below, and please re-post 🙏 www.nature.com/naturecareer... More about us here: www.gla.ac.uk/schools/psyc... #neuroskyence #neurojobs
nature.com
Professor, Senior Lecturer/Lecturer and Lecturer posts - Glasgow City (GB) job with University of Glasgow | 12838283
University of Glasgow College of Medical, Veterinary and Life Sciences  School of Psychology & Neuroscience Professor in Cognitive Neuroscience/Psy...
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Tune H Pers @tunepers.bsky.social · 02/05/2025
These are not good news for us foreigners who are (or plan to be) co-PI an NIH grants @altnih4science.bsky.social. Anybody who knows whether they plan to terminate ongoing R01 grants? www.nature.com/articles/d41...
nature.com
Exclusive: NIH to end billions of dollars in foreign research grants
Move by US biomedical agency jeopardizes thousands of projects on infectious diseases, cancer and more.
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Marie K Holt @mkbholt.bsky.social · 02/05/2025
www.nature.com/articles/s42... GIP is such a strange hormone. I'm glad these two companion papers can shed some light on the mystery...
nature.com
GIPR agonism and antagonism decrease body weight and food intake via different mechanisms in male mice - Nature Metabolism
This study, together with a companion manuscript, show that, in mice, weight loss as a result of GIP receptor antagonism requires, and potentiates, functional GLP-1 receptor signalling in the brain, e...
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Marie K Holt @mkbholt.bsky.social · 02/05/2025
www.nature.com/articles/s42... Anyone else find GIP super confusing - but in an exciting way?
nature.com
GIPR-Ab/GLP-1 peptide–antibody conjugate requires brain GIPR and GLP-1R for additive weight loss in obese mice - Nature Metabolism
This study, together with a companion manuscript, shows that in mice, weight loss as a result of GIP receptor antagonism requires and potentiates functional GLP-1 receptor signalling in the brain, exp...
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Prof. Tony Goldstone @tonygoldstone.bsky.social · 04/04/2025
Join us at British Library on-line or in person Fri 9th May 7pm to hear me @zoesqwilliams.bsky.social @kimberleywilson.bsky.social @christinaavogel.bsky.social discuss GLP-1 based therapies for obesity 🥗🍰. Tickets via: events.bl.uk/events/ozemp... @imperialbrains.bsky.social @imperialmed.bsky.social
events.bl.uk
Ozempic Nation | British Library
Ozempic and other similar drugs have dominated the headlines in the last year. Opinions on both sides are strong – on one hand claiming their power as a mi
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Marie K Holt @mkbholt.bsky.social · 12/04/2025
Very very cool and lovely anatomical work! I wonder if this is at all modulated by GLP1? GLP1 neurons are activated by IL6 and sit in the nearby NTS. Excited to give this a thorough read!
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Rita Strack @ritastrack.bsky.social · 10/04/2025
Your yearly reminder to acknowledge the core facilities you use and their staff scientists in your papers. These scientists are a crucial part of the scientific ecosystem and to continue to exist they need tangible credit for their work. Plus their associated expertise adds credibility to your work.
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British Society for Neuroendocrinology @bsneuroendo.bsky.social · 05/04/2025
ARE YOU AN ECR? Apply for the Julia Buckingham Award The award recognises the achievement and potential of up-and-coming scientists. You get: 🔬 15 minute lecture 💸 £375 prize money 🧡 1-year membership to the BSN Apply by 31 May 2025: www.neuroendo.org.uk...
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Nils Kroemer @nbkroemer.bsky.social · 03/04/2025
Do you get in a bad mood if you are hungry? Over 4 weeks with EMA+CGM, we tested if mood shifts are subconsciously driven by glucose levels or ratings of metabolic state #neuroskyence 🩺 Work w/ @kristinkaduk.bsky.social @akuehnel.bsky.social @derntllab.bsky.social www.biorxiv.org/content/10.1...
Summary of the study. A: The schematic shows the experimental procedure, illustrating five weekly lab visits followed by 2 MR visits labeled from S1 to S7. After the first session (S1), participants undergo four weeks of continuous glucose monitoring (CGM) combined with ecological momentary assessment (EMA). B: The CGM system uses a small flex sensor placed at the posterior upper arm that is inserted in the subcutaneous fatty tissue. The glucose sensor, positioned beneath the skin surface layers (epidermis and dermis), measures glucose levels in the interstitial fluid within the subcutaneous adipose tissue. The data is wirelessly sent via near field communication (NFC) to the FreeStyle Libre 3 app on the participant’s cell phone. The accuracy of the sensor concerning capillary glucose has been validated (Alva et al., 2022). C: Participants rate their metabolic and mood states twice daily using a visual analog scale (VAS), ranging from 0 (not at all) to 100 (very).
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Chris Zimmerman @czimmerman.bsky.social · 03/04/2025
How do we associate the flavors we experience during a meal 🍽️😋 with postingestive effects like food poisoning 🤢🤮 that arise much later? Our answer in @nature.com this week: Illness signals from the gut reactivate and strengthen flavor representations in the amygdala. 📄: nature.com/articles/s41...
nature.com
A neural mechanism for learning from delayed postingestive feedback - Nature
Illness signals from the gut reactivate and strengthen flavour representations in the amygdala to support learning from delayed postingestive feedback.
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Micah G. Allen @micahgallen.com · 03/04/2025
Hello Bluesky! Our students are running a short survey on interoception, ADHD, and autism. If you’ve got a few minutes, they’d be so grateful if you could take part — and help spread the word! 🔗 docs.google.com/forms/d/e/1F... #psychscisky
docs.google.com
Aarhus University Student Survey
This questionnaire will take approximately 15- 25 minutes to complete. Please answer in a safe environment and as truthfully as possible. As a neurodiverse research team, we prioritize the comfort an...
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Alex Kwan @alexkwan.bsky.social · 02/04/2025
Our latest study identifies a specific cell type and receptor essential for psilocybin’s long-lasting neural and behavioral effects 🍄🔬🧠🧪 Led by Ling-Xiao Shao and @ItsClaraLiao Funded by @NIH @NIMHgov 📄 Read in @nature.com - www.nature.com/articles/s41... 1/12
nature.com
Psilocybin’s lasting action requires pyramidal cell types and 5-HT2A receptors - Nature
A pyramidal cell type and the 5-HT2A receptor in the medial frontal cortex have essential roles in psilocybin’s long-term drug action.
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Sylvain Baillet @sylvainbaillet.bsky.social · 02/04/2025
🚨We're hiring another tenure-track at McGill University: focus on brain-body science! 👇 mcgill.wd3.myworkdayjobs.com/en-US/mcgill...
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Eric Topol @erictopol.bsky.social · 02/04/2025
The vaccine against Shingles helps protect against dementia, results of a natural experiment, adding to prior evidence "implications are profound" New @nature.com www.nature.com/articles/d41... nature.com/articles/s41...
nature.com
A natural experiment on the effect of herpes zoster vaccination on dementia - Nature
Using a natural experiment that avoids common bias concerns, this study finds that the live-attenuated shingles vaccine reduced the probability of a new dementia diagnosis within a follow-up period of...
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Micah G. Allen @micahgallen.com · 03/04/2025
It will always amuse me that modern researchers working on "interoceptive predictive coding" have totally ignored the entire historical body of work (cerca 1960s-1970s) on interoceptive conditioning.
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Marie K Holt @mkbholt.bsky.social · 31/03/2025
www.science.org/doi/abs/10.1...
science.org
Hedonic eating is controlled by dopamine neurons that oppose GLP-1R satiety
Hedonic eating is defined as food consumption driven by palatability without physiological need. However, neural control of palatable food intake is poorly understood. We discovered that hedonic eatin...
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Marie K Holt @mkbholt.bsky.social · 29/03/2025
Very cool! www.nature.com/articles/s41...
nature.com
Projectome-based characterization of hypothalamic peptidergic neurons in male mice - Nature Neuroscience
This study maps the single-axon projections of 7,180 hypothalamic peptidergic neurons in male mice and uncovers extensive collateralization, topographic target innervation and modular intra-hypothalam...
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Micah G. Allen @micahgallen.com · 24/03/2025
Science papers in 1965: here is a hand drawn plot of some heart rate data from 7 people I thought looked interesting Science papers now: here are 65 different plots spanning multiple forms of intervention, imaging, machine learning, and model systems
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Sarah Ruediger @ruedigersarah.bsky.social · 22/03/2025
Fascinated by brain circuits? Looking for a postdoc position? We are a looking for an experimentalist to join us to investigate the neural substrate underlying goal-directed habitual strategies in visual tasks. Spread the word! Apply by 1st of April - no joke!
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Marie K Holt @mkbholt.bsky.social · 22/03/2025
This is interesting and aligns with my own experience of having a partner who's an imaging specialist at the same uni. He's an amazing collaborator at work, does more than half the domestic stuff and took substantial leave after our daughter was born. Academia ain't all bad if you do it together.
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SSIBsociety @ssibsociety.bsky.social · 21/03/2025
Join SSIB Today! 📅 Annual Meeting Deadlines: Abstracts: March 21 (Today) Early Registration: June 18 📷 Learn more: ssib.org/2025/ Join a supportive and innovative community. Learn more from #KathleenKeller, President Elect (2025), President (2026), below!
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Dr Anna Hadjihambi @ahadjihambi.bsky.social · 21/03/2025
#Brain #vasculature #researchers: what perfusion systems do you recommend for mice? Thank you!
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Daniel Drucker @danieljdrucker.bsky.social · 20/03/2025
Editors will often ask preclinical scientist for human data and scientists working in other areas for animal experiments @nature www.nature.com/articles/d41...
nature.com
How ‘animal methods bias’ is affecting research careers
Some early-career researchers report feeling pressure to use animal models to meet journal and grant requirements, even in disciplines and projects that don’t require them.
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Marie K Holt @mkbholt.bsky.social · 20/03/2025
This is super interesting and so elegant! And perhaps aligns really well with the idea that the afferent vagus nerve is organised according to multiple modalities (target organ, tissue layer and stimulus type) as proposed by Zhao et al. 2022 www.nature.com/articles/s41...?
nature.com
A multidimensional coding architecture of the vagal interoceptive system - Nature
Single-cell profiling of vagal sensory neurons from seven organs in mice and calcium-imaging-guided spatial transcriptomics reveal that interoceptive signals are coded through three distinct dimension...
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Micah G. Allen @micahgallen.com · 10/03/2025
Can we enhance interoception by controlling the heart? Thrilled to share our new study, led by @ashleytyrer.bsky.social , where we use computational modeling to show that blockading peripheral noradrenaline uniquely alters awareness of heart rate & breathing! www.biorxiv.org/content/10.1... 🧵👇
A graphical abstract titled "Can Beta-Blockers Manipulate Interoception? A Placebo-Controlled Study." The image illustrates how bisoprolol and propranolol affect interoception. On the left, a green figure represents bisoprolol, showing a zoomed-in synapse where it selectively blocks β1 receptors. On the right, a purple figure represents propranolol, blocking both β1 and β2 receptors, affecting both brain and body. A psychophysics graph models interoceptive responses, showing response intensity over trials. Below, line plots compare placebo, propranolol, and bisoprolol effects on interoception—cardioception (threshold) and respiroception (slope)—indicating drug effects on bodily awareness.
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Masud Husain @masudhusain.bsky.social · 06/03/2025
Why academia is sleepwalking into self-destruction. My editorial @brain1878.bsky.social If you agree with the sentiments please repost. It's important for all our sakes to stop the madness academic.oup.com/brain/articl...
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Marie K Holt @mkbholt.bsky.social · 07/03/2025
Excellent environment, excellent mentor, excellent science - what more could you want from a postdoc position?
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mino-belle.bsky.social @mino-belle.bsky.social · 17/02/2025
We have a 3-year postdoctoral and a research assistant position available to join our team here in Manchester! Please get in touch if interested OR pass on! PDRA: www.jobs.manchester.ac.uk/Job/JobDetai... RA: www.jobs.manchester.ac.uk/Job/JobDetai...
jobs.manchester.ac.uk
Research Associate in Circadian and Sleep Neuroscience:Manchester
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