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Our latest work on the neurobiology of subjective emotional experience in anxiety is out now in SCAN 🧠 Brief summary below 👇 doi.org/10.1093/scan...
Peter Kirk
@peterakirk.bsky.social
Neuroscientist & Psychologist at the NIH | Anxiety & Mood Disorders, Naturalistic Neuroimaging, Subjective Experience, Physiology, Development | Disclaimer: all views/posts are my own.
820 followers719 following59 posts
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Our latest work on the neurobiology of subjective emotional experience in anxiety is out now in SCAN 🧠 Brief summary below 👇 doi.org/10.1093/scan...
Peter Kirk reposted
🚨 Language is usually left-lateralized, while attention tends to favor the right hemisphere. But are these functions always on opposite sides of the brain?🧠 In our new @biorxiv-neursci.bsky.social preprint, we explored hemispheric complementarity in 987 people. 🧵 www.biorxiv.org/content/10.6...
Peter Kirk reposted
Just published - what happens in the brain when people offload memories into external reminders? Using fMRI decoding, we found that the corresponding neural trace fades until it becomes statistically absent. www.nature.com/articles/s41... 🧵...
Peter Kirk reposted
Next AFNI Bootcamp: Oct 20-22, 2026! Classes cover: FMRI visualization, full subject-level processing, alignment, regression modeling, and quality control. Registration is free & open to both NIH and non-NIH researchers. Registration+details: afni.nimh.nih.gov/bootcamp Please share widely.
Peter Kirk reposted
In our latest episode of The Biological Psychiatry Podcast, we sit down with Dr. @sidchop.bsky.social from @orygen.org.au and the @unimelb.edu.au to discuss his latest work distinguishing the effects of psychotic illness and antipsychotic medication on the brain.
Peter Kirk reposted
New paper alert! 📣📣 In this work, we investigated the origins of somatic symptoms – a common and debilitating feature of anxiety and depression. 'Anxiety is associated with the persistence of conditioned somatic sensations over time'
Peter Kirk reposted
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...
Peter Kirk reposted
🧠 New work showing prominent and widespread 𝘪𝘯 𝘷𝘪𝘷𝘰 pre-synaptic terminal reductions in people with schizophrenia.🧠 nature.com/articles/s41... Strongest effects in left hemisphere, but synaptic loss didn't track with MRI grey matter alterations, but did align with..👇1/4
Peter Kirk reposted
A recent paper by Epp et al. in NN claimed that ~40% of reported BOLD findings could be misinterpreted. In our reanalysis, we identified several statistical issues that, in our view, undermine these conclusions. www.biorxiv.org/content/10.6... 👇 1/11
Peter Kirk reposted
🎉 Excited to share our publication in PNAS! 🎉 What happens when our stream of consciousness turns towards the body? Our fMRI study of 536 individuals finds that 'body-wandering' is associated with patterns of brain connectivity, physiology, affect, and mental health: www.pnas.org/doi/full/10....
Peter Kirk reposted
Our latest work on the neurobiology of subjective emotional experience in anxiety is out now in SCAN 🧠 Brief summary below 👇 doi.org/10.1093/scan...
Huge shout-out to co-authors (incl. @purnimaqamar.bsky.social), very much a team effort. Big thanks to @csavasegal.bsky.social @esfinn.bsky.social and colleagues, whose prior work (i.e., doi.org/10.1093/cerc...) inspired this study.
Our latest work on the neurobiology of subjective emotional experience in anxiety is out now in SCAN 🧠 Brief summary below 👇 doi.org/10.1093/scan...
Peter Kirk reposted
Peter Kirk reposted
Replying to @purnimaqamar.bsky.social
Peter Kirk reposted
Controversial? Classic? What if rest is not best? 🤔 Congrats to @halleeshearer.bsky.social for this thoughtful commentary, and thanks to @ninetlab.bsky.social for the 🎬 movie x rTMS 🧲 collaboration. doi.org/10.1162/IMAG...
Peter Kirk reposted
Want to learn about FMRI visualization, processing and group analysis? Join us for the next AFNI Bootcamp (Jan. 27-29, 2026) for a fun few days of theory and interactive practicals. Details+registration for this virtual course: afni.nimh.nih.gov/bootcamp
Peter Kirk reposted
This paper had a pretty shocking headline result (40% of voxels!), so I dug into it, and I think it is wrong. Essentially: they compare two noisy measures and find that about 40% of voxels have different sign between the two. I think this is just noise!
Would love to hear expert views on this paper. It appears to show that the operationalization of brain activity the field has relied on for 3 decades—the BOLD response—is not actually a sensible measure of brain activity. www.nature.com/articles/s41...
Our latest study led by @purnimaqamar.bsky.social on avoidance in pediatric anxiety is out now in Mental Health Science 🎉 onlinelibrary.wiley.com/doi/full/10....
Peter Kirk reposted
** Recruiting a postdoc ** We are looking for a postdoc to work on emotion, mental health, and interoception, based in London at @ucl.ac.uk in my lab (Clinical and Affective Neuroscience). Part of a large Wellcome Grant (co-led with the brilliant @camillanord.bsky.social)
Peter Kirk reposted
Excited to share our manuscript about BrainEffeX, a tool for exploring fMRI effect sizes. Includes why we made it, how to use it + contribute, and how we made it. @sneuroble.bsky.social @psychonetrics.bsky.social @alexkfischbach.bsky.social @nichols.bsky.social @dscheinost.bsky.social & MINDS Lab
Shearer et al. introduce an interactive web application for exploring fMRI effect maps: doi.org/10.52294/001... @halleeshearer.bsky.social @sneuroble.bsky.social @ohbmossig.bsky.social #OpenDatasets #SpecialIssue
Peter Kirk reposted
Data only shows associations. Turning those into claims about mechanism or causation? That requires a Rosetta Stone of prior knowledge + theory. Resting-state fMRI is purely observational; correlation is its currency. From this, plenty of "theoretical toys" about brain function can be built...
Resting-State fMRI and the Risk of Overinterpretation: Noise, Mechanisms, and a Missing Rosetta Stone https://www.biorxiv.org/content/10.1101/2025.09.16.676611v1
Peter Kirk reposted
Excited to share this new preprint on the Predictive Modelling of Depression Treatment Response using Individual Symptoms and Latent Factors with @clairegillan.bsky.social fresh up on @medrxivpreprint.bsky.social www.medrxiv.org/content/10.1...
Peter Kirk reposted
Our latest work is now out in @natmentalhealth.nature.com! We examined the role of the basal forebrain and its influence on intrinsic brain networks in depressive and anxiety disorders. 🔗 www.nature.com/articles/s44... @psychunimelb.bsky.social, @mbciu.bsky.social, #UnimelbMDHS
Peter Kirk reposted
The @cahbir.bsky.social and @rutgersbhi.bsky.social are hiring! Multiple open area and open rank faculty jobs, wonderful colleagues, amazing resources, and one of the largest communities of brain science research groups on the planet. Please apply and share widely. jobs.rutgers.edu/postings/209...
Peter Kirk reposted
Peter Kirk reposted
Excited to share that our work is now published in Imaging Neuroscience! 🧠🥳 We show how aging reshapes the brain’s language and memory networks, revealing striking shifts in hemispheric specialization across the lifespan. Check it out @imagingneurosci.bsky.social
New paper in Imaging Neuroscience by Elise Roger, Gaelle E. Doucet, et al: When age tips the balance: A dual mechanism affecting hemispheric specialization for language doi.org/10.1162/IMAG...
A great week of meetings and presenting in Melbourne, including a visit to @orygen.org.au hosted by @sidchop.bsky.social & Lianne Schmaal. Now off to Brisbane for #OHBM2025. I'll be presenting Tuesday and Wednesday, 9am in the Great Hall both days :)
Social anxiety may be related to physical avoidance of aversive stimuli in an interactive game. Our latest study, led by @purnimaqamar.bsky.social. osf.io/preprints/ps...
Peter Kirk reposted
Check our latest work ‘Linking Subjective Experience of Anxiety to Brain Function using Natural Language Processing’. Our analyses link movie-evoked brain activity and subsequent interview recordings in a pediatric sample with and without anxiety disorders (doi.org/10.31234/osf...).
Check our latest work ‘Linking Subjective Experience of Anxiety to Brain Function using Natural Language Processing’. Our analyses link movie-evoked brain activity and subsequent interview recordings in a pediatric sample with and without anxiety disorders (doi.org/10.31234/osf...).
Peter Kirk reposted
🚨 New #preprint: The molecular and cellular underpinnings of human brain lateralization 🔗 doi.org/10.1101/2025... 🧠 We identify an acetylcholine-norepinephrine axis underlying functional lateralization, along with mitochondrial and cellular correlates. 🧵1/9👇 #neuroskyence
Peter Kirk reposted
"To make a meaningful contribution to #neuroscience, #fMRI must break out of its silo." My latest attempt to convince you of the importance of multi-scale approaches for the study of the human brain.
Until recently, in-vivo brain imaging has largely been absent from… integrative efforts, limiting the opportunities to contribute our discoveries, theories or vision toward a comprehensive view of brain function, writes @avramholmes.bsky.social. #neuroskyence www.thetransmitter.org/future-of-fm...
Peter Kirk reposted
Is interoceptive sensing unified across internal organs? 🫀🫁 Our high-powered psychophysical study (N=241) suggests not. Bayesian evidence indicates interoceptive processes are largely modality-specific—challenging the idea of a unitary interoceptive sense. 🔗 Read here: osf.io/preprints/ps...
Our report on "The Relations Among Anxiety, Movie-Watching, and In-Scanner Motion" is out now in Human Brain Mapping. In short: even anxiety-evoking movies reduce pediatric in-scanner movement compared to 'rest', highlighting its benefit for developmental neuroimaging. doi.org/10.1002/hbm....
Peter Kirk reposted
Peter Kirk reposted
Interested in #MRI and #psychiatry? Our lab is hiring a research assistant (@holmeslab-bhi.bsky.social)! Please RT and share. @geneticssociety.bsky.social @ohbmofficial.bsky.social @sfnjournals.bsky.social @pgcgenetics.bsky.social @hitop-system.bsky.social @blackinneuro.bsky.social
Peter Kirk reposted
Peter Kirk reposted
Come join us at the ICN. Were looking for an Associate or Full Professor: www.ucl.ac.uk/work-at-ucl/... (these jobs aren't advertised very often!)
Peter Kirk reposted
Interested in understanding what brain activity during movies means from the perspective of the viewer? Then you absolutely need check out this amazing study by @ravenwallace.bsky.social from THinC Lab out now in @elife.bsky.social A thread 🧵 elifesciences.org/articles/97731
Peter Kirk reposted
I am looking for a post-doc on neuroimaging analysis. Come & join my team at UEA (Norwich, UK). The post is for 32 months starting from April. Norwich is a wonderful & affordable city. ➡Apply: vacancies.uea.ac.uk/vacancies/13... ⏰Deadline: 13 February 2025 Questions: s.rossit@uea.ac.uk
Peter Kirk reposted
Great work by @halleeshearer.bsky.social in her first first-author paper. With 🎀 shiny app 🎀 to explore how FC reliability fares ACROSS DIFFERENT movies versus rest, region-by-region. Thanks @sneuroble.bsky.social @tingsterx.bsky.social @ninetlab.bsky.social for 👍 collab. doi.org/10.1162/imag...
Peter Kirk reposted
I thought this was the conclusion of the original BWAS paper? Either way it's both imaging pipelines (specifically driving features from population average atlases) and noisy target phenotypes
The limiting factor for MRI based prediction of behavioral traits may be neither the imaging nor the pipeline or learning algorith but rather the reliability of the target phenotypes Thought provoking work my Martin Gell et al: www.nature.com/articles/s41...
Peter Kirk reposted
Happy to share our latest paper on 'using movies to study subjective, clinically meaningful experiences in neuroscience' 🎞️🧠. doi.org/10.1093/cerc...
Peter Kirk reposted
Peter Kirk reposted