Edmond J. Safra

Yonatan Loewenstein

Prof. Yonatan Loewenstein

Edmond and Lily Safra Center for Brain Sciences,The Suzanne and Charles Goodman Brain Sciences Building, Edmond J. Safra Campus, The Hebrew University of Jerusalem
We are an interdisciplinary laboratory, interested in computational neuroscience and computational cognition. Research in the lab in recent years has primarily revolved around the neural mechanisms and computational principles underlying different types of learning.
Eran Meshorer

Prof. Eran Meshorer

Department of Genetics, Institute of Life Sciences, Edmond J. Safra Campus, Hebrew University
Prof. Eran Meshorer obtained his Ph.D. in Molecular Neuroscience at the Hebrew University of Jerusalem, and performed his postdoctoral studies at the National Cancer Institute (NIH, USA) where he studied epigenetic regulation of embryonic stem cell (ESC) neuronal differentiation.
Adi Mizrahi

Prof. Adi Mizrahi

Edmond and Lily Safra Center for Brain Sciences,The Suzanne and Charles Goodman Brain Sciences Building, Edmond J. Safra Campus, The Hebrew University of Jerusalem

Our lab is interested in how the brain computes sensory information and how these computations change with the experience of the animal. We study both the structure and the function of neurons mainly in two sensory modalities – olfaction and audition. Our animal model is the mouse.

David Omer

Dr. David Omer

Edmond and Lily Safra Center for Brain Sciences,The Suzanne and Charles Goodman Brain Sciences Building, Edmond J. Safra Campus, The Hebrew University of Jerusalem
Social behaviors, ranging from coordinated courtship displays, to more complex behaviors such as observational learning and group cooperation, requires neuronal mechanism that support cognitive mapping of physical and social spaces, for self and others.   Mechanisms that when disrupted, may underlay
Yifat Prut

Prof. Yifat Prut

Dept. of Medical Neurobiology, The Hebrew University - Hadassah Medical School, Jerusalem

Producing motor actions requires orchestrated activation across the entire motor system. This coordinated neural activity is obtained via massive interactions between several motor-related centers, including the motor cortex, spinal cord, cerebellum and brainstem nuclei. The importance of these interactions becomes evident when the normal flow of information between these sites is interrupted. In these cases (e.g., spinal cord injury, spinocerebellar ataxia, etc.) damage to connecting pathways interrupts the normal operation of the motor system and leads to severe motor deficits.  In these cases, the neurons are often intact, yet the information they receive is greatly altered.

In my lab we are studying the flow of information in the motor system and its contribution to the emergence motor of commands and subsequently motor actions. Our working hypothesis is that different sources of motor-related information regulate unique aspects of motor commands (e.g., selected actions, target direction and timing of action). These sources of information converge upon motor cortical circuitry according to some yet unknown principles of connectivity. The resultant motor cortical command is an integrated transient signal which is further modified at the spinal level before finally reaching working muscles.

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Using parallel recording from multiple motor hierarchies (i.e., motor cortex, motor thalamus, spinal cord and muscles) and employing protocols of electrical stimulations we identify the connectivity pattern between different sites, and thus measure the information transmitted between these sites. Interrupting with the flow of information between sites using chronically implanted electrodes highlights the events which take place during pathological states. By working with behaving primates we can study the operation of the motor system both in health and disease in a model closest to humans.

To-date we focused on the descending control exerted by motor cortex over spinal circuitry before and during voluntary movements. We found that corticospinal (CS) interactions are extensive and dynamics and can act as a processing link for modifying the cortical motor command into an appropriate activation signals for muscles. We further found that CS connectivity of motor and premotor cortex can exert a dual, priming and breaking, impact on spinal circuitry. This mechanism can serve as a gating signal that prevents a pre-mature release of movements. These results re-define the hierarchical organization of motor cortex and spinal circuitry during voluntary movements.

Our current research focuses on the complementary direction of information flow, namely the thalamocortical (TC) impact on motor cortex. Here we characterize the connectivity of the TC system in the motor system of primates, and its implication on cell activity and cell-to-cell interactions. Moreover, we are now able to replicate the behavioral events which take place during cerebellar ataxia and measure the neural correlates of these changes.

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Idan Segev

Prof. Idan Segev

Edmond and Lily Safra Center for Brain Sciences,The Suzanne and Charles Goodman Brain Sciences Building, Edmond J. Safra Campus, The Hebrew University of Jerusalem
Idan Segev is the David & Inez Myers Professor in Computational Neuroscience and former director of the Interdisciplinary Center for Neural Computation (ICNC) at the Hebrew University of Jerusalem, where he received his B.Sc (1973) in Math and Ph.D (1982) in experimental and theoretical neurobio
Orly Shenker

Prof. Orly Shenker

Technology and Medicine, Levy Building,Edmond Safra Campus,The Hebrew University of Jerusalem
After obtaining an LL.B from Tel Aviv University (1984) and working a few years as a lawyer, I did a BA in Physics and the Hebrew University (1991) and then a PhD in the Philosophy of Science (1997) with Itamar Pitowsky.
sagiv_shifmaמ

Prof. Sagiv Shifman

Department of Genetics, The Alexander Silberman Inst. of Life Sciences, The Hebrew University of Jerusalem Establishment: The Life Science Institute
Sagiv Shifman is an Associate Professor in the Department of Genetics at the Hebrew University of Jerusalem, Israel. He received his Ph.D. from the Hebrew University of Jerusalem, Israel, training in the laboratory of Ariel Darvasi, where he was studying the genetics basis of schizophrenia.
Haim Sompolinsky

Prof. Haim Sompolisky

Edmond and Lily Safra Center for Brain Sciences,The Suzanne and Charles Goodman Brain Sciences Building, Edmond J. Safra Campus, The Hebrew University of Jerusalem
Sompolinsky’s research goal is to uncover the fundamental principles of the organization, the dynamics and the function of the brain, viewing the brain through multiscale lenses, spanning the molecular, the cellular, and the circuit levels.
Hermona Soreq

Prof. Hermona Soreq

The Alexander Silberman Institute of Life Sciences, The Edmond J. Safra Campus, The Hebrew University of Jerusalem

Hermona Soreq obtained her Ph.D. from The Weizmann Institute of Science in 1976 and joined the faculty of The Hebrew University in 1986. She holds a University Slesinger Chair and is also a founding member of the Edmond and Lily Safra Center for Brain Science. Soreq served as the elected Dean of the Faculty of Science from 2005-2008. She is the author of over 275 publications, including 55 published in ScienceNaturePNAS and other high-impact journals, has been the recipient of co-recipient of over $50M in funding from US, European and Israeli National and private foundations including an Advanced ERC Award and an Israeli I-Core on mass trauma. Soreq’s research is centered on acetylcholine functioning; she pioneered the application of molecular biology and genomics to the study of cholinergic signaling, with a recent focus on its microRNA regulation. She consistently collaborates with basic and clinician experts on cholinergic signaling in health and disease, was recently elected to head the International Organization of Cholinergic Mechanisms, and has one DNA-based drug in phase II clinical trials in a Jerusalem start-up. Soreq serves on The Hebrew University’s Executive Committee and has past and current appointments on scientific advisory boards for national and international bodies with significant interests in life sciences. Dr. Soreq’s honors include: Honorary PhDs from the Universities of Stockholm (1996), Ben-Gurion University (2007), and Erlangen (2008), Teva Founders’ Award (2006), The Lise Meitner Alexander von Humboldt Foundation Award, Germany (2009), a Miller Fellowship at US UC Berkeley (2009) and a Rappaport prize for bio-medical research (2015). She is also on the UK-Israel Council, the International Advisory Boards of BGU’s Center of Biotechnology, the Center of Non-neuronal Cholinergic Mechanisms, Giessen University and the Immunosensation Center of Excellence, Bonn. Finally, 24 of her trainees serve as faculty members in Israel (HUJI, TAU, BGU) and overseas (Berkeley, Maryland, Ann Arbor, Paris, Tours, Gottingen London) and others contribute to government and private biotechnology organizations and companies involved in Life Sciences. 

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Research Topics: MicroRNAs (miRNAs) rapidly emerge as global regulators of gene expression, yet their roles in brain functioning are largely unknown. We combine advanced sequencing technologies with computational neuroscience and transgenic engineering tools to investigate miRNA functions in the healthy and diseased brain, with a focus on acetylcholine signaling and its ‘CholinomiRs’ microRNA controllers. We discovered cholinergic brain-to-body regulation of anxiety and inflammation, and found "CholinomiR" silencers of multiple genes that compete with each other on suppressing their targets. We currently introduce this dimension of complexity to CholinomiR interactions, clarify its impact on anxiety and neurodegeneration, and test CholinomiR-based intervention with diseases involving impaired ACh signaling. In human volunteers, we find single nucleotide polymorphism (SNP) interference with acetylcholinesterase (AChE)-targeting CholinomiR functioning to associate with elevated trait anxiety, blood pressure and inflammation. In experimental animal models, we study CholinomiR increases under acute stress, inflammation and ischemic stroke, whereas in Alzheimer’s brains we see massive CholinomiRs decline and accompanying modifications in alternative splicing and transcript termination that differ from those of Parkinson’s disease. Finally, we engineer "humanized" mice and neuronal stem cells carrying such primate-specific CholinomiRs for studying their contributions to higher brain functions.

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Eilon  Vaadia

Prof. Eilon Vaadia

Edmond and Lily Safra Center for Brain Sciences,The Suzanne and Charles Goodman Brain Sciences Building, Edmond J. Safra Campus, The Hebrew University of Jerusalem
Prof. Vaadia (Former (Founding) Director of ELSC (2009-2016) combines theory and experiments to the study brain sensorimotor functions  The team at the lab uses brain-machine interfaces (BMI) electrical activity of neurons in brain circuits.
Daphna Weinshall

Prof. Daphna Weishall

School of Computer Science and Engineering Hebrew University of Jerusalem
Daphna Weinshall received the BSc degree in mathematics and computer science from Tel-Aviv University, Tel-Aviv Israel, in 1982.