Aharon Ravia
@AharonRavia
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PhD at the Weizmann Institute. Human olfaction & math/computational models. A spouse, a dad
Joined November 2014
Summary: We developed a metric for olfaction that predicts perceptual similarities between complex mixtures, according to their components' molecular structure. We used it to predict discriminability between odors, and to design olfactory metameres. https://t.co/T6BPm5mI7I 2/n
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Thrilled to share a peek of our latest project with @OferPerl! 📸 We’re investigating how large language models understand smells and comparing it to human perception. If you’re lucky enough to be in Iceland for ISOT, look for Ofer! #LanguageModels #Olfaction #ISOT2024
Yesterday I presented a unique approach for assessing olfactory language through the lens of large language models. A fun little adventure along with computational rock star @AharonRavia Thanks for @ISOT2024Iceland for allowing this stage for exposure and communication! #ISOT2024
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Yesterday I presented a unique approach for assessing olfactory language through the lens of large language models. A fun little adventure along with computational rock star @AharonRavia Thanks for @ISOT2024Iceland for allowing this stage for exposure and communication! #ISOT2024
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Can beliefs impact brain activity in a dose-dependent manner? A fresh start for 2024 - happy to share our study was just published in @NatMentHealth A thalamic circuit represents dose-like responses induced by nicotine-related beliefs in human smokers https://t.co/05Nv3x3ybC
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Why do humans cry with tears? In a paper that was just published in @PLOSBiology. We found that a chemosignal in human tears blocks aggression. https://t.co/Es4hdSCYRp
journals.plos.org
Rodent tears contain a chemical signal that reduces aggression in conspecifics. This study shows that human tears similarly contain a chemical signal that, although odorless, activates human olfact...
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They say timing is everything, though this time I wish it wasn't so. Absolutely excited and proud to share our study on how neural patterns can differentiate traumatic from sad autobiographical memories in people with #PTSD now out in @NatureNeuro
https://t.co/Vzp40r9LcW
nature.com
Nature Neuroscience - Perl et al. show that in PTSD, hippocampal representations of autobiographical memories are similar across people with similar semantic content only for sad but not traumatic...
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Huge congratulations to newly minted Dr. SHANI AGRON for passing her viva and having her first author paper accepted, both in the same week not to mention during war time😲 Shani did it all - synthetic ligands, social chemosignaling, neuroimaging, analytical chemistry and more!
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Happy to learn that we were awarded an ERC Synergy grant to further our understanding of how the human sense of smell works and how we can utilize that knowledge to digitalize odors; collaboration between the labs of Noam Sobel @LabWorg Jonathan Williams, Danika Kragic, an my lab
📣 Results of the 2023 ERC Synergy Grant competition are out! 37 research groups win a total of €395 million in #ERCSyG funding 👉 This will enable them to pool diverse expertise and resources to push the frontiers of knowledge. Full story: https://t.co/qxp34JIn4u 🇪🇺#EUfunded
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Here are some easy phrases for the new wanna-be Israelis on the block. #IsrealPalestineconflict
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What do grid distortions tell us about grid function? Our @NeuroCellPress Perspective reviews cases of deviations from perfect grid. Treated as a feature, not a bug, we speculate on what they mean. w/ @yahadef, @LasLiora, @derdikman & Nachum Ulanovsky https://t.co/UsiObxy0W5
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💥💥💥New Preprint alert!💥💥💥 Can the sense of smell be harnessed to treat obstructive sleep apnea (#OSA)? We* think yes! *We = work with the fabulous @ArziAnat 🧵A short thread ahead --> https://t.co/2pmn6W47xM
biorxiv.org
Study Objectives Obstructive sleep apnea (OSA) is a prevalent sleep-disordered breathing condition characterized by repetitive cessations in breathing during sleep. Current standard of care for OSA...
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It's been seven hours and 31 days Since my paper was sent away I hit refresh all night and sleep all day Since my paper was sent away Since you been gone, I can read whatever I want I can cite whomever I choose @AcademicsSay #AcademicChatter
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#PTSD, idiosyncrasy, #hippocampus AND narrative perception?! We got you covered! 🚨Our new preprint just d-r-o-p-p-e-d!🚨 Here's a pretty long thread, but I planted some DALL-E generated pics for the ride. https://t.co/JkJXuOijJu 🧵[1/20]🧵
biorxiv.org
For people with post-traumatic stress disorder (PTSD), recalling traumatic memories often displays as intrusions that differ profoundly from processing of ‘regular’ negative memories. These mnemonic...
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Transport features predict if a molecule is odorous. Great to see the fruits of this collaboration (@jland52 @rgerkin @little_kelsie and others!) out in the world https://t.co/qf1pYWRp8v (1/3)
pnas.org
In studies of vision and audition, stimuli can be chosen to span the visible or audible spectrum; in olfaction, the axes and boundaries defining th...
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An olfactory self-test effectively screens for COVID-19 A long journey is concluded. @SmellSpace_IL ,our multisite project is now published in @Nature Communications Medicine A perceptual olfactory measure from household odorants allows #COVID19 screening. https://t.co/ghZ9gzhgTf
nature.com
Communications Medicine - Snitz et al. develop a web-based olfactory screening tool for COVID-19, which relies on users smelling household odorants. Based on data from participants in 134...
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1/4 A new coefficient of correlation #maths #statistics 📎 https://t.co/Km6uicjChg Introduces Chatterjee correlation coef which is 0 if the vars are independent and 1 if one is a measurable function of the other, and is computationally efficient to compute O(nlog n). 🧵👇
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Human social chemosignaling will never be the same😱 Extremely pumped to share this study led by @eva_mishor published today in @ScienceAdvances ! #Sniffing the Human Body-Volatile #Hexadecanal Blocks #Aggression in Men but Triggers Aggression in Women. https://t.co/xWo1Gukbqz
science.org
Sniffing a molecule emitted from baby heads makes men less aggressive yet women more aggressive.
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3D grid cells @Nature! We found grid fields in 3D were arranged in a local order, but not in a global hexagonal lattice, as was expected from findings in 2D. w/ @yahdef, @yoramburak, @HSompolinsky, @LasLiora & Nachum Ulanovsky https://t.co/AltjrN4Lwa
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