In studies of neural plasticity, one of the outstanding challenges is to connect our growing understanding of cellular and synaptic mechanisms to their consequences for plasticity of whole neuronal circuits. A promising approach is to use optical microscopy to observe the changes in activity that accompany learning;however, conventional methods like multiphoton microscopy cannot monitor neuronal events over large regions at high speeds. A new technique, Objective-Coupled Planar Illumination (OCPI) microscopy, promises orders-of- magnitude increases in the sensitivity and speed of optical physiology. This proposal focuses on extending the spatiotemporal resolution of OCPI microscopy to observe neuronal activity and plasticity at subcellular resolution in thousands of neurons simultaneously.

Public Health Relevance

The mechanisms of learning are among the great unsolved mysteries of the brain, and memory deficits are a major medical problem. To better understand the neuronal basis of learning, we will develop new instruments for observing the changes in the brain during memory formation.

Agency
National Institute of Health (NIH)
Institute
National Institute of Neurological Disorders and Stroke (NINDS)
Type
Research Project (R01)
Project #
5R01NS068409-03
Application #
8089394
Study Section
Special Emphasis Panel (ZRG1-ETTN-G (52))
Program Officer
Talley, Edmund M
Project Start
2009-07-15
Project End
2013-06-30
Budget Start
2011-07-01
Budget End
2012-06-30
Support Year
3
Fiscal Year
2011
Total Cost
$372,400
Indirect Cost
Name
Washington University
Department
Neurosciences
Type
Schools of Medicine
DUNS #
068552207
City
Saint Louis
State
MO
Country
United States
Zip Code
63130
Barnes, Terra D; Rieger, Michael A; Dougherty, Joseph D et al. (2017) Group and Individual Variability in Mouse Pup Isolation Calls Recorded on the Same Day Show Stability. Front Behav Neurosci 11:243
Liang, Xitong; Holy, Timothy E; Taghert, Paul H (2017) A Series of Suppressive Signals within the Drosophila Circadian Neural Circuit Generates Sequential Daily Outputs. Neuron 94:1173-1189.e4
Xu, Pei Sabrina; Lee, Donghoon; Holy, Timothy E (2016) Experience-Dependent Plasticity Drives Individual Differences in Pheromone-Sensing Neurons. Neuron 91:878-892
Yang, Yue; Yamada, Tomoko; Hill, Kelly K et al. (2016) Chromatin remodeling inactivates activity genes and regulates neural coding. Science 353:300-305
Liang, Xitong; Holy, Timothy E; Taghert, Paul H (2016) Synchronous Drosophila circadian pacemakers display nonsynchronous Ca²? rhythms in vivo. Science 351:976-81
Fu, Xiaoyan; Yan, Yuetian; Xu, Pei S et al. (2015) A Molecular Code for Identity in the Vomeronasal System. Cell 163:313-23
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Xu, Pei Sabrina; Holy, Timothy E (2013) Whole-mount imaging of responses in mouse vomeronasal neurons. Methods Mol Biol 1068:201-10
Tolokh, Illya I; Fu, Xiaoyan; Holy, Timothy E (2013) Reliable sex and strain discrimination in the mouse vomeronasal organ and accessory olfactory bulb. J Neurosci 33:13903-13
Turaga, Diwakar; Holy, Timothy E (2012) Organization of vomeronasal sensory coding revealed by fast volumetric calcium imaging. J Neurosci 32:1612-21

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