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Jorge Miranda Barrientos

@jorge-miranda.bsky.social
146 followers 194 following 34 posts

Staff Scientist II-Lead at LIBD. Interested in brain circuits related to motivated behaviors and attention.

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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 18/09/2026
I loved this image of LC neurons expressing Chrimson (Red). TH staining in Cyan. I think this was one of the first images @rehg-j.bsky.social took when he joined the lab as an RA. Now he is a grad student, and I am sure he is going to do great. #FluorescenceFriday
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 15/09/2026
Thrilled to share that I was selected for a Mexican government program aimed at strengthening collaborations between research institutions in Mexico and Mexican scientists abroad, receiving the distinction of Investigator Level 1! 🇲🇽🔬 What a great way to start Hispanic Heritage Month!
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 11/09/2026
A little bit of what we are doing in the circuits group at @lieberinstitute.bsky.social. An Amphetamine recruited ensemble in the mPFC tagged with mCherry. Credits to Suhaas Adiraju (Grad student) and @danolivares.bsky.social. #fluorescencefriday
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 21/08/2026
This is a very good day to do some patching. So proud of @drjennkim.bsky.social for patching her first cell!!!
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 15/08/2026
Got back home from GRC frontal cortex and my 6 year old surprised me with a microscope he build with his blocks for me to keep study the brain. Sutil way to tell me to work harder I guess... lol
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 14/08/2026
Coming back from another amazing GRC frontal cortex. So proud of Suhaas Adiraju who presented some of the work we are doing at @lieberinstitute.bsky.social about Amphetamine ensembles within the mPFC.
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Keri Martinowich @martinowk.bsky.social · 14/08/2026
For #FluorescenceFriday - fresh off the 🔬 image as part of a molecular connectomics experiment that I am super stoked about from Maddie Abramson, @rphillips3.bsky.social @jorge-miranda.bsky.social and Stephanie Page - labeling hippocampal neurons projecting to the lateral septum in the mouse 🧠
Fluorescence microscopy image of virally labeled CA1 neurons in the mouse hippocampus that are projecting to the lateral septum
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 08/08/2026
These mPFC neurons are telling me that GRS @grc-frontal-cortex.bsky.social starts today!!! On my way to the airport. Can't wait to listen the amazing projects people are working on. So honored to co chair the GRS with @albitc.bsky.social
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Keri Martinowich @martinowk.bsky.social · 31/07/2026
Excited 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 🧠
Screen shot of email acceptance from ACNP organizers with panel title
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Stephanie Staszko @sstaszko.bsky.social · 30/07/2026
Studying norepinephrine? Have cool results to share? Want to join an online community of norepinephrine researchers? We are organizing our fall schedule for the Blue Spot Slack! We have monthly virtual seminars where you can share your work and get feedback in a supportive environment. Apply/join ⬇️
Immunohistochemical staining showing noradrenergic neurons of the locus coeruleus
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 30/07/2026
I am so thrilled to share that i was selected to received the 2026 BBRF young investigator grant from the @bbrfoundation.bsky.social. This is meaningful for me. Thanks so much to @martinowk.bsky.social and the @lieberinstitute.bsky.social for all the support.
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Angélica Torres-Berrío, PhD @neuroangelica-atb.bsky.social · 11/07/2026
2026 GRC Frontal Cortex August 9 - 14, 2026 Application deadline: July 12, 2026 👇🏼👇🏼👇🏼
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 26/06/2026
Also apply for the GRS!! Great opportunity for trainees to present and networking.
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 26/06/2026
Thrilled to share that our latest paper investigating how mPFC-LC projectors contribute to sustained #attention is now out in @npp-journal.bsky.social This is so meaningful to me and the team, Its @rehg-j.bsky.social first first-author paper and my first corresponding one. rdcu.be/fqBJp
rdcu.be
Top-down control of sustained attention by medial prefrontal cortex—locus coeruleus (mPFC-LC) projection neurons during the rodent continuous performance test (rCPT)
Neuropsychopharmacology - Top-down control of sustained attention by medial prefrontal cortex—locus coeruleus (mPFC-LC) projection neurons during the rodent continuous performance test (rCPT)
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Keri Martinowich @martinowk.bsky.social · 15/05/2026
For #FluorescenceFriday, celebrating some more good paper news with this really pretty image labeling prefrontal cortical neurons with projections to the locus coeruleus with chemogenetic receptors. Image credit to @rehg-j.bsky.social @jorge-miranda.bsky.social 🧠🧪🔬
Fluorescent microscopy image of a section of mouse brain tissue with viral labeling with green and red fluorophores. Overlap makes neurons appear yellowish-orange on image.
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 24/04/2026
Yesterday I had the privilege to give a virtual talk to undergrad and graduate students in Mexico about some of our work at @lieberinstitute.bsky.social. It was great to connect with the community, and giving it in spanish felt so special. #cienciaenespañol!
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Keri Martinowich @martinowk.bsky.social · 20/03/2026
For #FluorescenceFriday 🧠🔬🧪 - mPFC projection neurons heading to ventral tegmental area 🟢 or the locus coeruleus 🔴. Processes on some of these GPF+ neurons are just AMAZING! Image credit to our Circuits team! @jorge-miranda.bsky.social @rehg-j.bsky.social and Daniel Olivares!
Fluorescence microscopy of a section of mouse brain tissue with neurons labeled in green and red based on projection target
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 13/03/2026
It is so nice to see some mPFC neurons lighting up. Maybe they know its friday and they are also excited for the weekend like me. #fluorescenceFriday #miniscope
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 13/02/2026
Great feeling for a friday. First cell from the new rig. Still a lot of work to do on the rig, but we are patching. Feels like going back to your first love ❤️ 😍
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Renata Marchette @renatamarchette.bsky.social · 07/02/2026
Our work characterizing the respiratory depression caused by opioids and alcohols is finally out in the world! pubmed.ncbi.nlm.nih.gov/41632547/
pubmed.ncbi.nlm.nih.gov
Potentiation of fentanyl-induced respiratory depression by alcohol is not fully reversed by naloxone - PubMed
The high frequency of opioid overdose deaths often involves co-use of alcohol, which is reported in approximately 30% of fentanyl fatalities. Both substances depress respiratory function, and their combined effects can be lethal. The present study investigated physiological parameters of respiratory …
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Keri Martinowich @martinowk.bsky.social · 06/02/2026
For #FluorescenceFriday - unmistakably the blue spot 🔵 (locus coeruleus) - here labeled in a section of the mouse brain in pink with tyrosine hydroxylase (TH) 🔬🧠🧪 Image credit to the @lieberinstitute.bsky.social Circuits team - @jorge-miranda.bsky.social @rehg-j.bsky.social
Microscopy image showing pink fill in neurons stained for tyrosine hydroxylase in a section of mouse brain tissue
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Harrison Ritz @hritz.bsky.social · 03/02/2026
Final paper of my PhD 🤗 www.nature.com/articles/s44... There is growing interest in how cognitive control may improve value-based decision making. However, we find that a recent paper overestimated the role of control in their task, leading to erroneous interpretations of dACC recordings.
nature.com
Misspecified models create the appearance of adaptive control during value-based choice - Communications Psychology
In a new computational analysis of previous work, this study shows that a control-free mechanism better accounts for value-based decisions than an account that assumes top-down control invigorating th...
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Bita Moghaddam @bita137.bsky.social · 30/01/2026
Notice of Extension to Early-Stage Investigator (ESI) Eligibility Period by NIH: Investigators whose ESI end date was in Sept, Oct, or Nov 2025 will have ESI status extended through March 31, 2026 But what about if the end date was Dec 25 or Jan 26? grants.nih.gov/grants/guide...
grants.nih.gov
NOT-OD-26-020: Notice of Temporary Extension to Early-Stage Investigator (ESI) Eligibility Period
NIH Funding Opportunities and Notices in the NIH Guide for Grants and Contracts: Notice of Temporary Extension to Early-Stage Investigator (ESI) Eligibility Period NOT-OD-26-020. OD
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Keri Martinowich @martinowk.bsky.social · 30/01/2026
For #FluorescenceFriday, activity-trapping experiments to better understand how amphetamine controls attention. RNAscope for glutamate neurons 🟢, inhibitory neurons 🔴 and our "ensemble" 🟣. Quotes for the loaded definition ;) Image credit to JHU neuro student Suhaas Adiraju 🧠🔬🧪
Microscopy image showing different type of neurons labeled in green, red and purple in a section of mouse brain in the frontal cortex
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bioRxiv Neuroscience @biorxiv-neursci.bsky.social · 31/01/2026
Oscillatory and aperiodic neural dynamics shape temporal perception and weighting of perceptual priors in ADHD profiles www.biorxiv.org/content/10.64898/20…
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 15/12/2025
So happy to share this preprint and so proud of @rehg-j.bsky.social and his hard work and determination. Here we showed circuit-specific effect after activation of mPFC-LC projectors to sustained attention during rCPT.
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Jason Rehg @rehg-j.bsky.social · 15/12/2025
Finally on Bluesky and I’m really excited to share this latest preprint with @jorge-miranda.bsky.social in which we functionally examined the role of a medial prefrontal cortex (mPFC)- Locus Coeruleus (LC) circuit in regulating sustained attention. 1/7 www.biorxiv.org/content/10.6...
biorxiv.org
Top-down control of sustained attention by the medial prefrontal cortex (mPFC)- locus coeruleus (LC) circuit during the rodent continuous performance task (rCPT)
The medial prefrontal cortex (mPFC) plays a pivotal role in attention by exerting top-down control to allocate cognitive resources toward behaviorally relevant stimuli based on learned context and exp...
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GRC Frontal Cortex @grc-frontal-cortex.bsky.social · 18/11/2025
We are thrilled to announce that the preliminary program for the 2026 GRC on the Frontal Cortex is now live! www.grc.org/frontal-cort... Registration is now open for both the GRC and our GRS, chaired by @albitc.bsky.social and @jorge-miranda.bsky.social!
grc.org
2026 Frontal Cortex Conference GRC
The 2026 Gordon Research Conference on Frontal Cortex will be held in Holderness, New Hampshire. Apply today to reserve your spot.
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Jorge Miranda Barrientos @jorge-miranda.bsky.social · 07/11/2025
Happy to share that our paper characterizing PrL dynamics during sustained attention is finally out. This work was a collaboration between the @martinowk.bsky.social and Greg Carr groups at @lieberinstitute.bsky.social . www.nature.com/articles/s41... #Calicumimaging #miniscopes #rCPT #PrL
nature.com
Patterns of neural activity in prelimbic cortex neurons correlate with attentional behavior in the rodent continuous performance test - Translational Psychiatry
Translational Psychiatry - Patterns of neural activity in prelimbic cortex neurons correlate with attentional behavior in the rodent continuous performance test
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Keri Martinowich @martinowk.bsky.social · 17/02/2025
New paper, studying time-on-task related decrements in the rodent continuous performance task (rCPT). CPTs are used to assess attentional function in clinical settings and have been adapted for mice (rCPT). Sustained attention is the ability to focus on an activity or stimulus over time,
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