hkl @hkl@social.cleverlibre.org
Professor of Neuroscience (Johns Hopkins Univ.)
Research interests: cortical plasticity, cross-modal plasticity, synaptic plasticity, metaplasticity, vision loss, visual cortex, auditory cortex
ORCID: 0000-0002-5554-983X
Joined Nov 2022
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More than happy to land here! I am a neuroscientist interested in the dog-human bond. 😃 💞 🐶 Using fMRI, I help uncover how dog brains perceive their social world.
I am not alone in this endeavor. Besides brilliant human colleagues worldwide, I have two amazing furry colleagues, Odín and Kun-kun.
🌟
A video abstract of our last paper https://youtu.be/wgv6ywyFJEg
#dogsofmastodon #caninescience #neuroscience #scicomm #introductionpost
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Finding Language in the Brain | The MIT Press Reader https://thereader.mitpress.mit.edu/finding-language-in-the-brain/
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Hearing is believing: Sounds can alter our visual perception https://www.psychologicalscience.org/news/news-release/2022-december-sounds-visual-perception.html
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Question for the vision scientists out there. Do we know whether mice experience binocular rivalry (or similar bistable phenomena)? After a superficial search, I see that they have 40 degrees of binocular vision so it seems plausible but can't find anything on it specifically.
#neuroscience @cogneurophys
@cjwhyte That's a good question. I honestly don't know. Considering mice have large monocular visual cortex, it may be difficult to observe behaviorally. I'm not sure if anyone's looked at that at a neural level in the binocular neurons. I'll boost your post to see if anyone knows.
@PhiloNeuroSci
Thanks for posting this! Very interesting paper. I'm a bit surprised that this didn't interfere with normal learning paradigms considering cFos promoter has been used for tagging #engram neurons.
On-demand cell-autonomous gene therapy for brain circuit disorders #neuroscience https://www.science.org/doi/10.1126/science.abq6656
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Hi all, my #introduction! I lead a #neuroscience research lab at Emory University called the Perception and Action Lab. We study how the brain allows us to actively explore and learn about the world through body motion. We're particularly interested in modeling and understanding distributed computations across multiple brain areas, and how these computations change during hearing loss and other conditions. I mostly post about work but sometimes other things too!
https://lab.chris-rodgers.com/
@DrYohanJohn @vickerse Thank you so much!
@DrYohanJohn @vickerse Thanks! I'm not well-versed in the dynamic network field, so it's hard to grasp how increased excitation could lead to hyseresis. If you have recommendations on a review article that explains this in simple terms, I'd appreciate it 
@seeingwithsound I'm glad this is out there. I agree with the idea of having tech transfer or standardization to provide continued support of the implant users. But practically how that'll be implemented is another question. Might need device approval agencies to consider such backup plans in their approval process. Also as new hardware/software gets developed, how would they implement backward compatibility? Hard questions...
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Who are you when you're split in two? When it comes to your brain, two halves do not make a whole. Learn about how the two halves of your brain communicate and what happens when you cut your brain in half in this week’s article by Barnes Jannuzi.
https://pennneuroknow.com/2022/12/06/when-you-add-two-halves-do-you-get-a-whole/
@vickerse @DrYohanJohn
There was a recent paper that showed that the frequency of mEPSCs and mIPSCs are regulated differently across the circadian cycle.
https://doi.org/10.1016/j.neuron.2019.11.011
@DrYohanJohn @vickerse
I don't know if there's a specific paper that addresses it, but the data is there across multiple papers.
We've seen in V1 L2/3 pyramidal neurons that average mEPSC frequency is ~5 Hz while average mIPSC frequency is ~10 Hz. This may not seem so different, but if you consider that inhibitory synapses probably are about 10~20% of total synapses on these neurons, it does make the difference in spontaneous release quite high for individual inhibitory synapses.
I've seen similar difference in mEPSC and mIPSC frequency in CA1 neurons as well as in thalamic neurons.
@DrYohanJohn @vickerse That's an interesting idea. I'm a synaptic physiologist, and I've always wondered about the fact that the random release probability of vesicles is much higher at inhibitory synapses compared to excitatory synapses. Your comment makes me wonder if that's related to keeping the 'balance'? Certainly, there are less inhibitory synapses than excitatory ones. What are the predictions, if there is a change in that balance?
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Important note for educators about now: it looks like GPT-2 output detectors can detect #chatgpt output pretty well.
https://huggingface.co/openai-detector
@seeingwithsound I agree that this far from use for congenitally blind. @wandell had a good point the other day about potential problem for cortical implants is that it will need some sort of compensation for movement. I presume wandell refers to the image stability that is normally achieved through VOR that prevents retinal image slip.
Also the stability of the long term electrode implants will need to be determined as well. It seems there's quite a bit of development on flexible ultra thin electrodes, which could help in the future. Certainly, more research needs to be done.
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@bibliolater That's a question for @freemo
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One straightforward way of dealing with systems like #ChatGPT or #Galactica in #higherEd is to directly confront students with an LLM-generated answer and have them critique it.
This is in fact be much better aligned with what we want to teach. Remembering and recalling facts isn’t an important skill anymore, but #criticalThinking is essential for a future in which graduates will work side by side with “#AI.” #constructiveAlignment
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#climatecrisis Wonderful interview of @WanderingGaia on Nature Podcast. It's inspiring to hear someone talk so positively about solutions to the #climatecrisis - social solutions which are practical and rapid such as managed migrations followed by concerted efforts to restore abandoned areas. Hope remains.
https://www.nature.com/articles/d41586-022-04132-2
Professor of Neuroscience (Johns Hopkins Univ.)
Research interests: cortical plasticity, cross-modal plasticity, synaptic plasticity, metaplasticity, vision loss, visual cortex, auditory cortex
ORCID: 0000-0002-5554-983X
Joined Nov 2022
