
Studying sleep, anesthesia, neuromodulation, memory, and sensory processing, combining human and animal models, Tel Aviv University | @labnir.bsky.social
Joined February 2019
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Congratulations @FalachRotem for Michaelson's Excellence Award in Alzheimer's Disease Research! very proud of you & your achievements in developing novel methods for detecting abnormal sleep activities in Alzheimer's. Publication soon stay tuned π€© @of_sagol @TAUMedFaculty
The Mind's Eye: A quest from vision to consciousness - symposium honoring Rafi Malach
Incredible lineup celebrating the career of an amazing scientist.
Join us on December 14-15 at the Weizmann Institute !
@ShaGilDot @GaliaAvidan @kalatwt @ShanyGrossman @HassonLab @MichalRamot
Proud and delighted to deliver the keynote presentation at βSleep Down Under 2025β Adelaide, organized by the Australasian Sleep Association @asa_nest @SleepOrgANZ #SDU2025 #SleepDownUnder
(6/6)
β¨ Take-home: LC neurons are not a single unitary arousal system.
LCβPRN brainstem pathway is critical for sound-evoked awakening
Thanks to team and colleagues π led by amazing
@NMatosevich , Noa Regev, U. Kimchi, N. Zelinger, @SinaKabaha, @MarmelAm & @NoamGabay
(5/6)
What happens if you silence LC synapses?
Using an optoGPCR (PdCO), we found that shutting down LCβPRN boosts sigma power and deepens NREM sleep. Silencing both PRN + BF was even more effective.
(4/6)
Timing is everything β±οΈ
Optogenetic activation showed that sound-evoked awakening depends on which LC neurons are active AND when they fire - synchrony with the sound is key.
(3/6)
Hereβs the twist: only the LCβPRN pathway shows a fast NE surge when sounds are played during sleep.
That rapid signal predicts whether the sound will wake the mouse.
(2/6)
Not all LC pathways are the same π
We compared LC projections to the basal forebrain (BF) and to the brainstem pontine reticular nucleus (PRN).
They turned out to be partially distinct populations.
Had a brilliant time at #SXSWLondon organized by @CNSfund discussing the future of sleep - issues ranging from monitoring health, through unique interventions, recording EEG via earbuds, to disengaging from ruminations falling asleep & lucid dreaming @lustenca @simon_joe50









