Wu Tsai Neurosciences Institute


Showing 451-500 of 505 Results

  • Rebecca D. Walker

    Rebecca D. Walker

    Clinical Associate Professor, Emergency Medicine

    Current Research and Scholarly InterestsInterests include international development in emergency care, healthcare disparities, wilderness medicine, human rights, administration

  • Dennis Wall

    Dennis Wall

    Professor of Pediatrics (Systems Medicine), of Biomedical Data Science and, by courtesy, of Psychiatry and Behavioral Sciences

    Current Research and Scholarly InterestsSystems biology for design of clinical solutions that detect and treat disease

  • James Wall

    James Wall

    Associate Professor of Surgery (Pediatric Surgery) and, by courtesy, of Bioengineering

    Current Research and Scholarly InterestsHealth Technology Innovation

  • Brian A. Wandell

    Brian A. Wandell

    Isaac and Madeline Stein Family Professor and Professor, by courtesy, of Electrical Engineering, of Ophthalmology and at the Graduate School of Education

    Current Research and Scholarly InterestsModels and measures of the human visual system. The brain pathways essential for reading development. Diffusion tensor imaging, functional magnetic resonance imaging and computational modeling of visual perception and brain processes. Image systems simulations of optics and sensors and image processing. Data and computation management for reproducible research.

  • Bo Wang

    Bo Wang

    Assistant Professor of Bioengineering

    BioWe are a discovery-driven research group working at the interface between developmental biology, bioengineering, and statistical physics. We combine quantitative organism-wide fluorescence imaging, functional genomics, and physical modeling to understand the fundamental rules that control collective cell behaviors to optimize tissue regeneration, adaptation, and evolution.

  • Kevin Wang, MD, PhD

    Kevin Wang, MD, PhD

    Assistant Professor of Dermatology

    Current Research and Scholarly InterestsThe Wang lab takes an interdisciplinary approach to studying fundamental mechanisms controlling gene expression in mammalian cells, and how epigenetic mechanisms such as DNA methylation, chromatin modifications, and RNA influence chromatin dynamics to affect gene regulation.

  • Shan X. Wang

    Shan X. Wang

    Leland T. Edwards Professor in the School of Engineering and Professor of Electrical Engineering and, by courtesy, of Radiology (Molecular Imaging Program at Stanford)
    On Partial Leave from 04/01/2022 To 06/30/2022

    Current Research and Scholarly InterestsShan Wang was named the Leland T. Edwards Professor in the School of Engineering in 2018. He directs the Center for Magnetic Nanotechnology and is a leading expert in biosensors, information storage and spintronics. His research and inventions span across a variety of areas including magnetic biochips, in vitro diagnostics, cancer biomarkers, magnetic nanoparticles, magnetic sensors, magnetoresistive random access memory, and magnetic integrated inductors.

  • Sui Wang, PhD

    Sui Wang, PhD

    Assistant Professor of Ophthalmology

    Current Research and Scholarly InterestsOur research focuses on understanding the molecular mechanisms that underlie retinal development and diseases. We utilize genetic and genomic tools to uncover how different types of retinal cells, including retinal neurons, glia and the vasculature, respond to developmental cues and disease insults at the epigenomic and transcriptional levels, and how they interact and collectively contribute to the integrity of the retina.

    1. Retinal cell fate specification.
    We are using genetic tools and methods, such as in vivo plasmid electroporation and CRISPR, to dissect the roles of cis-regulatory elements and transcription factors in controlling retinal cell fate specification.

    2. The multicellular responses elicited by diabetes in the retina.
    Diabetes can induce multicellular responses in the retina, including vascular lesions, glial dysfunction and neurodegeneration, all of which contribute to retinopathy. We are using diabetic rats as models to investigate the detailed molecular mechanisms underlying the diabetes-induced multicellular responses, and the disease mechanisms of diabetic retinopathy.

    3. Molecular tools that allow for cell type-specific labeling and manipulation in vivo.
    Cis-regulatory elements, such as enhancers, play essential roles in directing tissue/cell type-specific and stage-specific expression. We are interested in identifying enhancers that can drive cell type-specific expression in the retina and brain, and incorporating them into plasmid or AAV based delivery systems.

  • Xinnan Wang

    Xinnan Wang

    Associate Professor of Neurosurgery

    Current Research and Scholarly InterestsMechanisms underlying mitochondrial dynamics and function, and their implications in neurological disorders.

  • Irving Weissman

    Irving Weissman

    Director, Stanford Institute for Stem Cell Biology and Regenerative Medicine, Virginia & D.K. Ludwig Professor of Clinical Investigation in Cancer Research, Professor of Developmental Biology and, by courtesy, of Biology

    Current Research and Scholarly InterestsStem cell and cancer stem cell biology; development of T and B lymphocytes; cell-surface receptors for oncornaviruses in leukemia. Hematopoietic stem cells; Lymphocyte homing, lymphoma invasiveness and metastasis; order of events from hematopoietic stem cells [HSC] to AML leukemia stem cells and blood diseases, and parallels in other tissues; discovery of tumor and pathogenic cell 'don't eat me' and 'eat me' signals, and translation into therapeutics.

  • Itschak Weissman

    Itschak Weissman

    Professor of Electrical Engineering
    On Partial Leave from 10/01/2021 To 06/30/2022

    BioTsachy's research focuses on Information Theory, Data Compression and Communications, Statistical Signal Processing, Machine Learning, the interplay between them, and their applications, with recent focus on applications to genomic data compression and processing. He is inventor of several patents and involved in several companies as member of the technical board. IEEE fellow, he serves on the board of governors of the information theory society as well as the editorial boards of the Transactions on Information Theory and Foundations and Trends in Communications and Information Theory. He is founding Director of the Stanford Compression Forum.

  • Marius Wernig

    Marius Wernig

    Professor of Pathology and, by courtesy, of Chemical and Systems Biology

    Current Research and Scholarly InterestsEpigenetic Reprogramming, Direct conversion of fibroblasts into neurons, Pluripotent Stem Cells, Neural Differentiation: implications in development and regenerative medicine

  • Robert West

    Robert West

    Professor of Pathology

    Current Research and Scholarly InterestsRob West, MD, PhD, is a Professor of Pathology at Stanford University Medical Center. He is a clinician scientist with experience in translational genomics research to identify new prognostic and therapeutic markers in cancer. His research focus is on the progression of neoplasia to carcinoma. His lab has developed spatially oriented in situ methods to study archival specimens. He also serves as a surgical pathologist specializing in breast pathology.

  • Gordon Wetzstein

    Gordon Wetzstein

    Associate Professor of Electrical Engineering and, by courtesy, of Computer Science

    BioGordon Wetzstein is an Associate Professor of Electrical Engineering and, by courtesy, of Computer Science at Stanford University. He is the leader of the Stanford Computational Imaging Lab and a faculty co-director of the Stanford Center for Image Systems Engineering. At the intersection of computer graphics and vision, computational optics, and applied vision science, Prof. Wetzstein's research has a wide range of applications in next-generation imaging, display, wearable computing, and microscopy systems. Prior to joining Stanford in 2014, Prof. Wetzstein was a Research Scientist at MIT, he received a Ph.D. in Computer Science from the University of British Columbia in 2011 and graduated with Honors from the Bauhaus in Weimar, Germany before that. He is the recipient of an NSF CAREER Award, an Alfred P. Sloan Fellowship, an ACM SIGGRAPH Significant New Researcher Award, a Presidential Early Career Award for Scientists and Engineers (PECASE), an SPIE Early Career Achievement Award, a Terman Fellowship, an Okawa Research Grant, the Electronic Imaging Scientist of the Year 2017 Award, an Alain Fournier Ph.D. Dissertation Award, and a Laval Virtual Award as well as Best Paper and Demo Awards at ICCP 2011, 2014, and 2016 and at ICIP 2016.

  • Matthew Wheeler

    Matthew Wheeler

    Assistant Professor of Medicine (Cardiovascular Medicine)

    Current Research and Scholarly InterestsTranslational research in rare and undiagnosed diseases. Basic and clinical research in cardiomyopathy genetics, mechanisms, screening, and treatment. Investigating novel agents for treatment of hypertrophic cardiomyopathy and new mechanisms in heart failure. Cardiovascular screening and genetics in competitive athletes, disease gene discovery in cardiomyopathy and rare disease. Informatics approaches to rare disease and multiomics. Molecular transducers of physical activity bioinformatics.

  • Leanne Williams

    Leanne Williams

    Professor of Psychiatry and Behavioral Sciences (Major Laboratories and Clinical Translational Neurosciences Incubator) and, by courtesy, of Psychology

    Current Research and Scholarly InterestsA revolution is under way in psychiatry. We can now understand mental illness as an expression of underlying brain circuit disruptions, shaped by experience and genetics. Our lab is defining precision brain circuit types for depression, anxiety and attention deficit. We apply computational models to large amounts of brain imaging, behavior and other data. These precision brain types inform our translational intervention studies. To close the loop, field ready insights are applied in practice.

  • Nolan Williams

    Nolan Williams

    Assistant Professor of Psychiatry and Behavioral Sciences (General Psychiatry and Psychology)

    BioDr. Williams is an Assistant Professor within the Department of Psychiatry and Behavioral Sciences and the Director of the Stanford Brain Stimulation Lab. Dr. Williams has a broad background in clinical neuroscience and is triple board-certified in general neurology, general psychiatry, as well as behavioral neurology & neuropsychiatry. In addition, he has specific training and clinical expertise in the development of brain stimulation methodologies under Mark George, MD. Themes of his work include (a) examining the use of spaced learning theory in the application of neurostimulation techniques, (b) development and mechanistic understanding of rapid-acting antidepressants, and (c) identifying objective biomarkers that predict neuromodulation responses in treatment-resistant neuropsychiatric conditions. He has published papers in high impact peer-reviewed journals including Brain, American Journal of Psychiatry, and the Proceedings of the National Academy of Science. Results from his studies have gained widespread attention in journals such as Science and New England Journal of Medicine Journal Watch as well as in the popular press and have been featured in various news sources including Time, Smithsonian, and Newsweek. Dr. Williams received two NARSAD Young Investigator Awards in 2016 and 2018 along with the 2019 Gerald R. Klerman Award. Dr. Williams received the National Institute of Mental Health Biobehavioral Research Award for Innovative New Scientists in 2020.

  • Thomas J. Wilson

    Thomas J. Wilson

    Clinical Associate Professor, Neurosurgery

    BioDr. Thomas J. Wilson was born in Omaha, Nebraska. He attended the University of Nebraska College of Medicine, earning his MD with highest distinction. While a medical student, he was awarded a Howard Hughes Medical Institute Research Training Fellowship and spent a year in the lab of Dr. Rakesh Singh at the University of Nebraska. He was also elected to the prestigious Alpha Omega Alpha Honor Medical Society. He completed his residency training in neurological surgery at the University of Michigan and was mentored by Dr. Lynda Yang and Dr. John McGillicuddy in peripheral nerve surgery. Following his residency, he completed a fellowship in peripheral nerve surgery at the Mayo Clinic in Rochester, Minnesota, working with Dr. Robert Spinner. He is now Clinical Assistant Professor and Co-Director of the Center for Peripheral Nerve Surgery at Stanford University. He is also currently endeavoring to earn a Master of Public Health (MPH) degree from the Bloomberg School of Public Health at Johns Hopkins University. His research interests include peripheral nerve outcomes research using large data sets and multi-institutional registries, clinical trials advancing options for patients with peripheral nerve pathologies, and translational research focused on deriving methods for data-driven intraoperative decision-making using intraoperative electrophysiology, advanced imaging techniques, and genetic expression information. His wife, Dr. Monique Wilson, is a practicing dermatologist in the Bay Area.

  • Jeffrey J. Wine

    Jeffrey J. Wine

    Benjamin Scott Crocker Professor of Human Biology, Emeritus

    Current Research and Scholarly InterestsThe goal is to understand how a defective ion channel leads to the human genetic disease cystic fibrosis. Studies of ion channels and ion transport involved in gland fluid transport. Methods include SSCP mutation detection and DNA sequencing, protein analysis, patch-clamp recording, ion-selective microelectrodes, electrophysiological analyses of transmembrane ion flows, isotopic metho

  • Monte Winslow

    Monte Winslow

    Associate Professor of Genetics and of Pathology

    Current Research and Scholarly InterestsOur laboratory uses genome-wide methods to uncover alterations that drive cancer progression and metastasis in genetically-engineered mouse models of human cancers. We combine cell-culture based mechanistic studies with our ability to alter pathways of interest during tumor progression in vivo to better understand each step of metastatic spread and to uncover the therapeutic vulnerabilities of advanced cancer cells.

  • H.-S. Philip Wong

    H.-S. Philip Wong

    Willard R. and Inez Kerr Bell Professor in the School of Engineering

    BioWong joined Stanford in 2004 after 16 years at IBM Research, with appointments as research staff member, Manager, and Senior Manager. While at IBM, he was responsible for shaping and executing IBM's strategy on nanoscale science and technology and silicon technology. His interests are in the area of nanoscale science and technology, semiconductor technology, solid-state devices, and electronic imaging.

    His present research covers a broad range of topics including carbon electronics, 2D layered materials, wireless implantable biosensors, directed self-assembly, nanoelectromechanical relays, device modeling, brain-inspired computing, and non-volatile memory devices such as phase change memory and metal oxide resistance change memory.

  • S Simon Wong

    S Simon Wong

    Professor of Electrical Engineering

    Current Research and Scholarly InterestsCurrent research focuses on

    Resistive Random Access Memory (RRAM) and Integration with CMOS

    Energy Efficient Approximate Computing for Machine Learning

  • Wing Hung Wong

    Wing Hung Wong

    Stephen R. Pierce Family Goldman Sachs Professor of Science and Human Health and Professor of Biomedical Data Science

    Current Research and Scholarly InterestsCurrent interest centers on the application of statistics to biology and medicine. We are particularly interested in questions concerning gene regulation, genome interpretation and their applications to precision medicine.

  • Albert Y. Wu, MD, PhD, FACS

    Albert Y. Wu, MD, PhD, FACS

    Assistant Professor of Ophthalmology

    Current Research and Scholarly InterestsMy translational research focuses on using autologous stem cells to recreate a patient’s ocular tissues for potential transplantation. We are generating tissue from induced pluripotent stem cells to treat limbal stem cell deficiency in patients who are bilaterally blind. By applying my background in molecular and cellular biology, stem cell biology, oculoplastic surgery, I hope to make regenerative medicine a reality for those suffering from orbital and ocular disease.

  • Hsi-Yang Wu

    Hsi-Yang Wu

    Member, Bio-X

    Current Research and Scholarly InterestsI am interested in how the brain matures to control the bladder and external sphincter to achieve urinary continence. Using functional MRI of the brain, we are investigating if certain patterns of activity will predict which children will respond to therapy for incontinence.

  • Jiajun Wu

    Jiajun Wu

    Assistant Professor of Computer Science

    BioJiajun Wu is an Assistant Professor of Computer Science at Stanford University, working on computer vision, machine learning, and computational cognitive science. Before joining Stanford, he was a Visiting Faculty Researcher at Google Research. He received his PhD in Electrical Engineering and Computer Science at Massachusetts Institute of Technology. Wu's research has been recognized through the ACM Doctoral Dissertation Award Honorable Mention, the AAAI/ACM SIGAI Doctoral Dissertation Award, the MIT George M. Sprowls PhD Thesis Award in Artificial Intelligence and Decision-Making, the 2020 Samsung AI Researcher of the Year, the IROS Best Paper Award on Cognitive Robotics, and faculty research awards and graduate fellowships from Samsung, Amazon, Facebook, Nvidia, and Adobe.

  • Courtney Wusthoff, MD

    Courtney Wusthoff, MD

    Associate Professor of Neurology and, by courtesy, of Pediatrics (Neonatology)

    Current Research and Scholarly InterestsMy projects focus on clinical research in newborns with, or at risk, for brain injury. I use EEG in at-risk neonates to better understand the underlying pathophysiology of risk factors that may lead to worse outcomes. I am particularly interested in neonatal seizures and how they may exacerbate perinatal brain injury with a goal to identify treatments that might protect the vulnerable brain. I am also interested in EEG in other pediatric populations, as well as medical ethics and global health.

  • Joanna Wysocka

    Joanna Wysocka

    Lorry Lokey Professor and Professor of Developmental Biology

    Current Research and Scholarly InterestsThe precise and robust regulation of gene expression is a cornerstone for complex biological life. Research in our laboratory is focused on understanding how regulatory information encoded by the genome is integrated with the transcriptional machinery and chromatin context to allow for emergence of form and function during human embryogenesis and evolution, and how perturbations in this process lead to disease.

  • Tony Wyss-Coray, PhD

    Tony Wyss-Coray, PhD

    D. H. Chen Professor II

    Current Research and Scholarly InterestsUse of genetic and molecular tools to dissect immune and inflammatory pathways in Alzheimer's and neurodegeneration.

  • Lei Xing

    Lei Xing

    Jacob Haimson and Sarah S. Donaldson Professor and Professor, by courtesy, of Electrical Engineering

    Current Research and Scholarly Interestsartificial intelligence in medicine, medical imaging, Image-guided intervention, molecular imaging, biology guided radiation therapy (BGRT), treatment plan optimization

  • Daniel Yamins

    Daniel Yamins

    Assistant Professor of Psychology and of Computer Science
    On Leave from 09/01/2021 To 06/30/2022

    Current Research and Scholarly InterestsOur lab's research lies at intersection of neuroscience, artificial intelligence, psychology and large-scale data analysis. It is founded on two mutually reinforcing hypotheses:

    H1. By studying how the brain solves computational challenges, we can learn to build better artificial intelligence algorithms.

    H2. Through improving artificial intelligence algorithms, we'll discover better models of how the brain works.

    We investigate these hypotheses using techniques from computational modeling and artificial intelligence, high-throughput neurophysiology, functional brain imaging, behavioral psychophysics, and large-scale data analysis.

  • Fan Yang

    Fan Yang

    Associate Professor of Orthopaedic Surgery and of Bioengineering

    Current Research and Scholarly InterestsOur research seeks to understand how microenvironmental cues regulate stem cell fate, and to develop novel biomaterials and stem cell-based therapeutics for tissue engineering and regenerative medicine. Our work spans from fundamental science, technology development, to translational research.We are particularly interested in developing better therapies for treating musculoskeletal diseases, cardiovascular diseases and cancer.

  • Yanmin Yang

    Yanmin Yang

    Associate Professor of Neurology

    Current Research and Scholarly InterestsElucidate biological functions of cytoskeletal associated proteins in neurons. Define the cellular and molecular mechanisms underlying neurodegeneration in null mice.

  • Yunzhi Peter Yang

    Yunzhi Peter Yang

    Professor of Orthopaedic Surgery and, by courtesy, of Materials Science and Engineering and of Bioengineering

    Current Research and Scholarly InterestsYang’ lab's research interests are in the areas of bio-inspired biomaterials, medical devices, and 3D printing approaches for re-creating a suitable microenvironment for cell growth and tissue regeneration for musculoskeletal disease diagnosis and treatment, including multiple tissue healing such as rotator cuff injury, orthopedic diseases such as osteoporosis and osteonecrosis, and orthopedic traumas such as massive bone and muscle injuries.

  • Jason Yeatman

    Jason Yeatman

    Assistant Professor of Pediatrics (Developmental-Behavioral Pediatrics), of Education and of Psychology

    BioDr. Jason Yeatman is an Assistant Professor in the Graduate School of Education and Division of Developmental and Behavioral Pediatrics at Stanford University. Dr. Yeatman completed his PhD in Psychology at Stanford where he studied the neurobiology of literacy and developed new brain imaging methods for studying the relationship between brain plasticity and learning. After finishing his PhD, he took a faculty position at the University of Washington’s Institute for Learning and Brain Sciences before returning to Stanford.

    As the director of the Brain Development and Education Lab, the overarching goal of his research is to understand the mechanisms that underlie the process of learning to read, how these mechanisms differ in children with dyslexia, and to design literacy intervention programs that are effective across the wide spectrum of learning differences. His lab employs a collection of structural and functional neuroimaging measurements to study how a child’s experience with reading instruction shapes the development of brain circuits that are specialized for this unique cognitive function.

  • David C. Yeomans

    David C. Yeomans

    Associate Professor of Anesthesiology, Perioperative and Pain Medicine

    Current Research and Scholarly InterestsPhysiology of different pain types; Biomarkers of pain and inflammation; Gene Therapy for Pain

  • Jerome Yesavage

    Jerome Yesavage

    Jared and Mae Tinklenberg Professor and Professor, by courtesy, of Neurology

    Current Research and Scholarly InterestsWe study cognitive processes and aging in our research center. Studies range from molecular biology to neuropsychology of cognitive processes.

  • Serena Yeung

    Serena Yeung

    Assistant Professor of Biomedical Data Science and, by courtesy, of Computer Science and of Electrical Engineering

    BioDr. Serena Yeung is an Assistant Professor of Biomedical Data Science and, by courtesy, of Computer Science and of Electrical Engineering at Stanford University. Her research focus is on developing artificial intelligence and machine learning algorithms to enable new capabilities in biomedicine and healthcare. She has extensive expertise in deep learning and computer vision, and has developed computer vision algorithms for analyzing diverse types of visual data ranging from video capture of human behavior, to medical images and cell microscopy images.

    Dr. Yeung leads the Medical AI and Computer Vision Lab at Stanford. She is affiliated with the Stanford Artificial Intelligence Laboratory, the Clinical Excellence Research Center, the Center for Artificial Intelligence in Medicine & Imaging, the Center for Human-Centered Artificial Intelligence, and Bio-X. She also serves on the NIH Advisory Committee to the Director Working Group on Artificial Intelligence.

  • Jong H. Yoon

    Jong H. Yoon

    Associate Professor of Psychiatry and Behavioral Sciences (Public Mental Health & Population Sciences)

    Current Research and Scholarly InterestsMy research seeks to discover the brain mechanisms responsible for schizophrenia and to translate this knowledge into the clinic to improve how we diagnose and treat this condition. Towards these ends, our group has been developing cutting-edge neuroimaging tools to identify neurobiological abnormalities and test novel systems-level disease models of psychosis and schizophrenia directly in individuals with these conditions.

    We have been particularly interested in the role of neocortical-basal ganglia circuit dysfunction. A working hypothesis is that some of the core symptoms of schizophrenia are attributable to impairments in neocortical function that results in disconnectivity with components of the basal ganglia and dysregulation of their activity. The Yoon Lab has developed new high-resolution functional magnetic resonance imaging methods to more precisely measure the function of basal ganglia components, which given their small size and location deep within the brain has been challenging. This includes ways to measure the activity of nuclei that store and control the release of dopamine throughout the brain, a neurochemical that is one of the most important factors in the production of psychosis in schizophrenia and other neuropsychiatric conditions.

  • Greg Zaharchuk

    Greg Zaharchuk

    Professor of Radiology (Neuroimaging and Neurointervention)

    Current Research and Scholarly InterestsImproving medical image quality using deep learning artificial intelligence
    Imaging of cerebral hemodynamics with MRI and CT
    Noninvasive oxygenation measurement with MRI
    Clinical imaging of cerebrovascular disease
    Imaging of cervical artery dissection
    MR/PET in Neuroradiology
    Resting-state fMRI for perfusion imaging and stroke

  • Natalie M. Zahr

    Natalie M. Zahr

    Assistant Professor (Research) of Psychiatry and Behavioral Sciences (Major Laboratories)

    BioNatalie M. Zahr received a graduate education in the basic sciences including the study of neuro- pharmacology, physiology, and anatomy. After completing her graduate training in electrophysiology, she began a postdoctoral fellowship as a magnetic resonance imaging (MRI) scientist. Her work focuses on translational approaches using in vivo MR imaging and spectroscopy in studies of human alcoholics and rodent models of alcoholism with the goal of identifying fundamental mechanisms of alcohol effects on the brain. Her human studies include participants with HIV, those comorbid for HIV and alcoholism and recently, aging individuals with mild cognitive impairment. Her position allows her to explore emerging MR technologies and apply them to test relevant hypotheses. Before joining Stanford, she taught at several local institutions including UC Berkeley extension and Santa Clara University enjoying sharing her knowledge and enthusiasm for learning with her students.

  • Jamil Zaki

    Jamil Zaki

    Associate Professor of Psychology

    Current Research and Scholarly InterestsMy research focuses on the cognitive and neural bases of social behavior, and in particular on how people respond to each other's emotions (empathy), why they conform to each other (social influence), and why they choose to help each other (prosociality).

  • Richard Zare

    Richard Zare

    Marguerite Blake Wilbur Professor of Natural Science and Professor, by courtesy, of Physics

    Current Research and Scholarly InterestsMy research group is exploring a variety of topics that range from the basic understanding of chemical reaction dynamics to the nature of the chemical contents of single cells.

    Under thermal conditions nature seems to hide the details of how elementary reactions occur through a series of averages over reagent velocity, internal energy, impact parameter, and orientation. To discover the effects of these variables on reactivity, it is necessary to carry out studies of chemical reactions far from equilibrium in which the states of the reactants are more sharply restricted and can be varied in a controlled manner. My research group is attempting to meet this tough experimental challenge through a number of laser techniques that prepare reactants in specific quantum states and probe the quantum state distributions of the resulting products. It is our belief that such state-to-state information gives the deepest insight into the forces that operate in the breaking of old bonds and the making of new ones.

    Space does not permit a full description of these projects, and I earnestly invite correspondence. The following examples are representative:

    The simplest of all neutral bimolecular reactions is the exchange reaction H H2 -> H2 H. We are studying this system and various isotopic cousins using a tunable UV laser pulse to photodissociate HBr (DBr) and hence create fast H (D) atoms of known translational energy in the presence of H2 and/or D2 and using a laser multiphoton ionization time-of-flight mass spectrometer to detect the nascent molecular products in a quantum-state-specific manner by means of an imaging technique. It is expected that these product state distributions will provide a key test of the adequacy of various advanced theoretical schemes for modeling this reaction.

    Analytical efforts involve the use of capillary zone electrophoresis, two-step laser desorption laser multiphoton ionization mass spectrometry, cavity ring-down spectroscopy, and Hadamard transform time-of-flight mass spectrometry. We believe these methods can revolutionize trace analysis, particularly of biomolecules in cells.

  • Michael Zeineh

    Michael Zeineh

    Associate Professor of Radiology (Neuroimaging and Neurointervention)

    BioDr. Michael Zeineh received a B.S. in Biology at Caltech in 1995 and obtained his M.D.-Ph.D. from UCLA in 2003. After internship also at UCLA, he went on to radiology residency and neuroradiology fellowship both at Stanford. He has been faculty in Stanford Neuroradiology since 2010. Combining clinical acumen in neuroradiology with advanced MRI acquisition and image processing as well as histologic validation, Dr. Zeineh hopes to advance the care of patients with neurodegenerative disorders.

  • Jamie Zeitzer

    Jamie Zeitzer

    Associate Professor (Research) of Psychiatry and Behavioral Sciences (Sleep Medicine)

    Current Research and Scholarly InterestsDr. Zeitzer is a circadian physiologist specializing in the understanding of the impact of light on circadian rhythms and other aspects of non-image forming light perception.
    He examines the manner in which humans respond to light and ways to manipulate this responsiveness, with direct application to jet lag, shift work, and altered sleep timing in teens. Dr. Zeitzer has also pioneered the use of actigraphy in the determination of epiphenomenal markers of psychiatric disorders.

  • Heng Zhao

    Heng Zhao

    Member, Wu Tsai Neurosciences Institute

    Current Research and Scholarly InterestsMy lab is focused on developing novel therapeutic methods against stroke using rodent models. We study protective effect of postconditioning, preconditioning and mild hypothermia. The rationale for studying three means of neuroprotection is that we may discover mechanisms that these treatments have in common. Conversely, if they have differing mechanisms, we will be able to offer more than one treatment for stroke and increase a patient’s chance for recovery.