Reposted by Josh JohansenKarl Deisseroth @deisseroth.bsky.social · 05/10/2026Thank you to everyone sharing in this moment! I’m so grateful to all my trainees & collaborators… dlab.stanford.edu/group-members (pic: Peter and I together in 2017) Reading for all those asking: for technical details: dlab.stanford.edu for everyone: deisseroth.org/projections 521572298
Reposted by Josh JohansenJeremiah Cohen @jeremiahycohen.bsky.social · 16/09/2026Happy to share the version of record of our locus coeruleus paper here: www.nature.com/articles/s41... Prior thread on some of our discoveries in this study: bsky.app/profile/jere...nature.comTopographic structure and function of locus coeruleus noradrenaline neurons - NatureDorsal and ventral noradrenergic neurons in the locus coeruleus form topographic subpopulations whose projection patterns and activity encode choice switching, reward-prediction errors and disregard o... 813452
Reposted by Josh JohansenSteve Ramirez @okaysteve.bsky.social · 16/09/2026🚨 new work from the lab! "Hippocampal astrocytic sequences emerge during learning and memory recall" by @ryguy.io & @rsuthard.bsky.social thank you to the entire team for your camaraderie and for muscling through science together 🧠 -- we welcome all feedback! nature.com/articles/s41...nature.comHippocampal astrocytic sequences emerge during learning and memory recallNature Neuroscience - Senne, Suthard and colleagues show that dorsal hippocampal astrocytes display time-compressed calcium-event sequences after foot shock and upon context re-exposure, and that... 79331
Reposted by Josh JohansenDr Anna Leshinskaya @annaleshinskaya.bsky.social · 09/09/2026Thrilled to announce that my department, UCI cognitive sciences, is hiring a tenure-track assistant professor in the area of computational social cognition. Further information including the application can be found at: recruit.ap.uci.edu/JPF10411recruit.ap.uci.eduAssistant Professor - Cognitive SciencesUniversity of California, Irvine is hiring. Apply now! 02515
Reposted by Josh JohansenMichael Totty @mictott.bsky.social · 27/08/2026Incredibly proud to share our newest work where we developed a multiscale spatial transcriptomic atlas of the human amygdala using three complementary technologies! 1/12 🧵 www.biorxiv.org/content/10.6...biorxiv.orgMultiscale spatial transcriptomics resolves the cellular and molecular architecture of the human amygdalaThe amygdala is a central hub for emotional learning that is dysregulated across numerous psychiatric disorders, yet its molecular architecture in humans remains poorly defined. We here present a spat... 35225
Josh Johansen @jojolab.bsky.social · 14/08/2026Artificial hibernation reveals synaptic engram architecture associated with memory retention | Science www.science.org/doi/10.1126/...science.orgArtificial hibernation reveals synaptic engram architecture associated with memory retentionMemories leave lasting physical changes at the synaptic level. Although stable, larger spines are thought to support memory, the high turnover of dendritic spines and the drifting of neuronal represen... 091
Reposted by Josh JohansenKeri Martinowich @martinowk.bsky.social · 31/07/2026Excited for accepted #ACNP2027 panel co-chaired with @jojolab.bsky.social. @vikaassohal.bsky.social @suthanalab.bsky.social @rphillips3.bsky.social and Josh will present cross-species strategies that align rodent circuit interrogation w/ behavioral, physiological & molecular readouts in human 🧠 1256
Reposted by Josh JohansenJohannes Felsenberg @felsenberg.bsky.social · 31/07/2026Finally out in @natneuro.nature.com! A forgotten memory isn't always gone. We show that forgotten memories persist as silent memory traces, can be recovered by reminders, and can even be reconstructed into false memories. Excited to finally share this work! www.nature.com/articles/s41...nature.comCreating true and false memories from forgotten information in Drosophila - Nature NeuroscienceForgotten memories in Drosophila persist as silent memory traces and can be recovered by reminder cues. Manipulating reminders can create false memories, showing that memory reconstruction flexibly in... 1214154
Reposted by Josh JohansenThe Transmitter @thetransmitter.bsky.social · 28/07/2026After meeting at an SfN social, neuroscientists Arash Fassihi, Gily Ginosar, Noga Larry and Abdulraheem Nashef organized the Middle Eastern Systems Neuroscience Symposium, hoping to build a community that can transcend political barriers through scientific connection. #neuroskyence bit.ly/4g0sZkkbit.lyHelping Middle Eastern neuroscientists build communityFour neuroscientists got together to organize the Middle Eastern Systems Neuroscience Symposium. They hope to build a community that can find ways to transcend political barriers through scientific co... 0199
Reposted by Josh JohansenInternational Brain Research Organization @ibroorg.bsky.social · 18/07/2026⏳ Only 2 weeks left to submit your symposium proposal for #IBRO2027! Review the submission requirements, check the scientific themes, wrap up your proposal & hit the submit button by 31 July 🔗 ow.ly/R1hP50ZoVnm Southern African Neuroscience Society Jibran Khokhar Society for Neuroscience 022
Josh Johansen @jojolab.bsky.social · 16/07/2026Very sad to hear of Susumu’s passing. His scientific creativity and intuition were inspiring. As director of @RIKEN_CBS, he hired a remarkable group of young scientists, including me, and set us free to pursue bold ideas. news.mit.edu/2026/mit-pro...news.mit.eduMIT Professor Susumu Tonegawa, renowned molecular biologist and Nobel laureate, dies at 86Susumu 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... 02913
Josh Johansen @jojolab.bsky.social · 09/07/2026I also want to highlight that Xiaowei Gu, the first author, recently started his own lab at SUSTech in Shenzhen: www.sustech.edu.cn/en/faculties...sustech.edu.cnXiaowei GU - Faculty - SUSTechAcademic Calendar Notice 021
Josh Johansen @jojolab.bsky.social · 09/07/2026How does the brain infer emotional meaning from experience, bodily signals, and context? In a new Science Perspective, we discuss how “internal emotion models” may bridge animal and human studies and inform new approaches to treating anxiety and trauma www.science.org/eprint/NGF5T...science.orgThe hidden logic of emotionInternal emotion models unify research across species and spark fresh ideas for treating anxiety and trauma 181
Reposted by Josh JohansenCaswell Barry @caswell.bsky.social · 23/06/2026Really excited about this work with the awesome Will de Cothi & @shipleysj.bsky.social, out in Nature Reviews Neuroscience. We propose acetylcholine is an analogue of dopamine — tracking not reward prediction errors but state-transition prediction errors. doi.org/10.1038/s41583-026-01058-w 25425
Reposted by Josh JohansenJeremiah Cohen @jeremiahycohen.bsky.social · 18/06/2026Excited to move to the Department of Neuroscience at the University of Minnesota in the fall. We will continue our work on neuromodulators and behavior. Positions available in the lab. Please get in touch if interested, and share broadly! hr.myu.umn.edu/jobs/ext/374... hr.myu.umn.edu/jobs/ext/374... 1512432
Reposted by Josh JohansenDiego A. Pizzagalli, PhD @diegopizzagalli.bsky.social · 05/05/20261/6: Two faculty positions at the Noel Drury, M.D. Institute for Translational Depression Discoveries Delighted to announce that we have two faculty openings for the Noel Drury, M.D. Institute for Translational Depression Discoveries at UC Irvine. The submission deadline is June 15, 2026. 21611
Reposted by Josh JohansenInternational Brain Research Organization @ibroorg.bsky.social · 02/06/2026🚨 The call for symposia for #IBRO2027 is open! Have an idea that could shape the future of #neuroscience? Propose a symposium & join us in Cape Town in Sep 2027 🇿🇦 🗓️ Submit by 31 Jul: ow.ly/OK6S50Z6Cpc #CallforSymposia Southern African Neuroscience Society Flavio Zolessi Camilla Bellone 044
Josh Johansen @jojolab.bsky.social · 27/05/2026doi.org/10.53053/RUK...doi.orgIn memoriam: Howard Fields, pain research pioneerOver six decades, Fields mapped out the circuits of both pain and addiction. 043
Josh Johansen @jojolab.bsky.social · 07/05/2026I’m very sad to share that Howard Fields has died. He made seminal discoveries in pain modulation, placebo, and addiction. He was also a wonderful mentor and friend who taught me how to think about the brain and the joy of scientific discovery. www.iasp-pain.org/publications...iasp-pain.orgIn Memory of Howard L. Fields - International Association for the Study of Pain (IASP)IASP is deeply saddened to hear of the recent death of Honorary IASP Member, Prof Howard Fields, and we offer our condolences to his family, friends and colleagues. We are […] 35815
Reposted by Josh JohansenMelissa Cooper, PhD @melcooperphd.bsky.social · 22/04/2026Astrocytes 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!nature.comAstrocytes connect specific brain regions through plastic networks - NatureCommunication between distant brain regions is mediated by plastic networks of gap junction-coupled astrocytes. 1016475
Reposted by Josh JohansenSJo @sjo09.bsky.social · 22/04/2026Anyone who has seen me talk lately knows that i have a fascination with Taylor Swift. I was introduced to her music by my daughter & her friends. So when @sfn.org asked me to write a review... Engrams and Memory: My Scientific "Eras Tour" www.jneurosci.org/content/jneu... 0388
Reposted by Josh JohansenRudebeck Lab @rudebecklab.bsky.social · 04/04/2026Want a dataset to test ideas on neural basis of decision making or how areas interact as we make choices? Check out our data published today @rudebecklab.bsky.social. >16,000 single neurons from 22 anatomically confirmed areas in macaques performing a decision task. www.nature.com/articles/s41...nature.comDataset of cortical and subcortical single neuron activity during value-based tasks in macaque monkey - Scientific DataScientific Data - Dataset of cortical and subcortical single neuron activity during value-based tasks in macaque monkey 210534
Reposted by Josh JohansenMeryl Malezieux @merylneuro.bsky.social · 23/03/20261/8 New preprint alert! How are signals from the heart encoded in the brain? What could be the functional implications of cardioception? We found that neurons in the posterior insular cortex are precisely tuned to heartbeats, and that this cardio-insular coupling supports emotion coding in mice.biorxiv.org 28840
Reposted by Josh JohansenGisella Vetere @gisellavetere.bsky.social · 11/03/2026How does the brain build a memory? A common assumption is that the neurons activated during an experience collectively form the memory engram. In our new Nature Neuroscience paper (finally out!), we show that this is not the case. www.nature.com/articles/s41...nature.comDeconstruction of a memory engram reveals distinct ensembles recruited at learning - Nature NeurosciencePouget et al. identified distinct CA1 neuron ensembles active during specific moments of fear learning and uncovered the core engram essential for memory formation. 1016661
Josh Johansen @jojolab.bsky.social · 03/03/2026Excited to share our new paper: We uncover a locus coeruleus→amygdala circuit linking β-adrenergic signaling to transcription regulation in defined amygdala cells during memory reconsolidation—+ stress or elevated noradrenergic signaling at recall can strengthen memory. www.cell.com/neuron/abstr...cell.comA neuromodulatory circuit-to-molecular pathway for reformatting aversive memories during recallTan et al. identify a neuromodulatory circuit-to-molecular pathway in rats that updates aversive memories when they are recalled. Noradrenaline from the locus coeruleus triggers synapse-to-nuclear tra... 38236
Reposted by Josh JohansenThe Transmitter @thetransmitter.bsky.social · 16/02/2026If neuroscience is serious about building general principles of brain function, cross-species dialogue must become a core organizing principle rather than an afterthought, writes @suthanalab.bsky.social. #neuroskyence www.thetransmitter.org/animal-model...thetransmitter.orgNeuroscience has a species problemIf neuroscience is serious about building general principles of brain function, cross-species dialogue must become a core organizing principle. 38732
Reposted by Josh JohansenAlex Shackman @ajshackman.bsky.social · 27/01/20261/n. I agree w/ Josh's emphasis on computationally grounded approaches, coordinated x-species work, and skepticism that emotion only encompasses constructed feelings. As he notes, hierarchical frameworks can encompass multiple levels of processing, 262
Josh Johansen @jojolab.bsky.social · 28/01/2026Thanks for weighing in, Alex. I appreciate your perspective here, and the paper you cite is an important piece of this conversation. 110
Josh Johansen @jojolab.bsky.social · 26/01/2026Me too. Couldn't fit it into the current piece, but this is a major advantage of a cross species approach; the ability to probe the circuit and molecular mechanisms of higher order emotion across conserved structures in non-human organisms 111
Josh Johansen @jojolab.bsky.social · 26/01/2026Grateful to @emilysingerneuro.bsky.social for excellent editorial guidance on this piece. 020
Josh Johansen @jojolab.bsky.social · 26/01/2026Thanks, I was inspired by your Transmitter-emotion piece 😊 020
Josh Johansen @jojolab.bsky.social · 26/01/2026My perspective in @thetransmitter.bsky.social on why emotion research feels stuck and how we might move forward—by focusing on how the brain uses internal brain models to shape emotional processing across species. www.thetransmitter.org/emotion/why-...thetransmitter.orgWhy emotion research is stuck—and how to move it forwardStudying how organisms infer indirect threats and understand changing contexts can establish a common framework that bridges species and levels of analysis. 36725
Reposted by Josh JohansenTakeshi Imai @imailab.bsky.social · 15/01/2026Our new paper is out in Science Advances! We found that dendritic compartment-specific spine “formation” during adolescence is critical for cortical development. We also found that schizophrenia-related genes are important in this process. (1/6) www.science.org/doi/10.1126/...science.orgDendritic compartment-specific spine formation in layer 5 neurons underlies cortical circuit maturation during adolescenceMouse models of schizophrenia show defects in adolescent spine formation in a specific dendritic compartment of L5 neurons. 1102
Reposted by Josh JohansenInternational Brain Research Organization @ibroorg.bsky.social · 09/01/2026🎉 Great news! IBRO is pleased to introduce the Scientific Program Committee for the IBRO 2027 World Congress, led by Drs. Sheena Josselyn and Thiruma V. Arumugam 🔗 Discover the full committee & read the announcement: ow.ly/p37U50XTXqN 2124
Josh Johansen @jojolab.bsky.social · 10/01/2026Congrats, Keri, so excited for you! Amazing to see your journey from UCLA to now 🎉 120
Josh Johansen @jojolab.bsky.social · 24/12/2025New paper from @ykneurores.bsky.social in our lab 📢 We show body size predicts defensive behavioral strategy; smaller animals adopt active avoidance, larger ones favor freezing, while sex and age don’t drive the effect. A clear demonstration that traits matter. www.sciencedirect.com/science/arti...sciencedirect.comBody size predicts the selection of defensive behavioral strategiesSurvival depends on the ability to respond appropriately to threats, yet the selection of defensive behaviors varies among individuals with distinct b… 1297
Reposted by Josh JohansenJason Shepherd @jasonsynaptic.bsky.social · 18/12/2025Excited to be working with colleagues around the world (including @drjkhokhar.bsky.social @jojolab.bsky.social and CHAIR @sjo09.bsky.social) on the @ibroorg.bsky.social World Congress in Cape Town, 2027! ibro.org/ibro-announc...ibro.orgIBRO announces the Scientific Program Committee for the 2027 World CongressFollowing a rigorous global selection process led by co-chairs Dr. Sheena Josselyn and Dr. Thiruma V. Arumugam, who aimed at establishing a scientifically broad Scientific Program Committee (SPC) for… 0274
Reposted by Josh JohansenLindsay Schwarz @lindsayschwarz.bsky.social · 15/12/2025Thrilled this is out, led by former PD Cameron Ogg (now with her own lab at @rhodescollege.bsky.social!). It was a driven by a desire to see, in real-time, how LC activity/NE release influences downstream targets in behaving animals. SO hard to do, but Cameron did it! www.cell.com/cell-reports...cell.comLocus coeruleus norepinephrine neurons facilitate orbitofrontal cortex remapping and behavioral flexibilityOgg et al. use in vivo imaging techniques to record activity in the locus coeruleus (LC) and the orbitofrontal cortex (OFC) during a reversal learning task in freely moving rodents. They show that man... 66332
Reposted by Josh JohansenThe Transmitter @thetransmitter.bsky.social · 15/12/2025A growing list of medications—such as zuranolone for postpartum depression, suzetrigine for pain, and the gepants class of migraine medicines—exist because of insights from basic research, writes @alexkwan.bsky.social. www.thetransmitter.org/drug-develop... #neuroskyencethetransmitter.orgHow basic neuroscience has paved the path to new drugsA growing list of medications—such as zuranolone for postpartum depression, suzetrigine for pain, and the gepants class of migraine medicines—exist because of insights from basic research. 13920
Josh Johansen @jojolab.bsky.social · 17/11/2025If you're at @sfn.org check out @ykneurores.bsky.social's poster on Tuesday Nov 18th morning! EE4 - A functional input-output organization in the amygdala for emotional learning and memory 063
Josh Johansen @jojolab.bsky.social · 16/11/2025Next Tuesday!:🧠📷 Join us for the Japan Neuroscience Global Soirée-#SfN2025 Social! 📷7–9 PM 📷 Protector Brewery: San Diego craft beer, food (free while supplies last) & lively discussions! 📷 RSVP (optional): evite.me/pAvuVkpqbK 🍻 072
Josh Johansen @jojolab.bsky.social · 05/11/2025🧠🍺 Join us for the Japan Neuroscience Global Soirée-#SfN2025 Social! 📅 Tue, Nov 18 | 🕖 7–9 PM 📍 Protector Brewery: maps.app.goo.gl/Z4hmQnLSDjwZ... San Diego craft beer, great food (free while supplies last) & lively discussions! 🔗 RSVP (optional): evite.me/pAvuVkpqbK All welcome—spread the word! 🍻 040
Reposted by Josh JohansenSJo @sjo09.bsky.social · 30/10/2025Excited to share the latest from the lab on the molecular mechanisms of silencing and un-silencing a hippocampal engram ensemble. Was fun using a variant of the EPSILON technique developed by Adam Cohen's lab. (1/2) www.sciencedirect.com/science/arti...sciencedirect.comMolecular mechanisms mediating engram ensemble retrievability state in miceEngrams, ensembles of neurons that store memories, exist along a continuum of retrievability. Normally, sensory cues can reactivate a latent engram to… 46125
Reposted by Josh JohansenPaul Frankland @franklandlab.bsky.social · 22/10/2025New paper from the lab 🚨 Led by Ali Golbabaei, this study explores the how the composition of prefrontal cortical engrams changes with memory age: authors.elsevier.com/a/1lzT-3BtfH...authors.elsevier.com 54421
Josh Johansen @jojolab.bsky.social · 08/10/2025A fascinating paper from Hokto Kazama's lab draws upon the fly connectome and large scale recordings to show how olfactory valence is encoded in distinct neurons in the lateral horn (drosophila amygdala) through labeled lines and biased feedforward inhibition www.sciencedirect.com/science/arti...sciencedirect.comDistinct circuit motifs evaluate opposing innate values of odorsEvaluating the innate value of objects is critical for expressing adaptive behaviors. However, where and how this computation takes place in the brain… 050