Next generation imaging in vivo

Principal Investigator: Elly Nedivi
Massachusetts Institute of TechnologyTitle: “Next generation high-throughput random access imaging, in vivo”
BRAIN category: Large-Scale Recording-Modulation – Optimization (RFA NS-14-008)

Dr. Nedivi’s team proposes a new imaging technology to simultaneously record activity at each of the thousands of synapses, or communication points, on a single neuron.

Optimization of 3-photon microscopy

Principal Investigator: Chris Xu
Cornell University
Title: “Optimization of 3-photon microscopy for Large Scale Recording in Mouse Brain”
BRAIN Category: Large-Scale Recording-Modulation – Optimization (RFA NS-14-008)

Dr. Xu and his collaborators will build new lasers and lenses to use three-photon microscopy to watch neuronal activity far deeper inside the brain than currently possible.

Protein-based Voltage Probes

Principal Investigator: Vincent Allen Pieribone
Yale Interdepartmental Neuroscience Program
Title: “Development of Protein-based Voltage Probes”
BRAIN Category: Large-Scale Recording-Modulation – Optimization (RFA NS-14-008)

Dr. Pieribone and his team will optimize fluorescent voltage probe technology, to allow scientists to measure the activity of thousands of neurons using only a camera and a microscope.

3D Holography for Optogenetic Manipulation

Principal Investigator: Serge Picaud
Pierre and Marie Curie University
Title: “Three Dimensional Holography for Parallel Multi-target Optogenetic Circuit Manipulation”
BRAIN Category: Large-Scale Recording-Modulation – Optimization (RFA NS-14-008)

Dr. Picaud’s team will continue its development of holographic imaging to use lasers to induce the natural electrical activity of neurons and test theories of how circuits produce behaviors in a range of animal models.

Protein voltage sensor imaging in vivo

Principal Investigator: Mark J Schnitzer
Stanford Neuroscience
Title: “Protein voltage sensors: kilohertz imaging of neural dynamics in behaving animals”
BRAIN Category: Large-Scale Recording-Modulation – Optimization (RFA NS-14-008)

Dr. Schnitzer and his team have created a new system for developing optical voltage sensors, which will allow scientists to simultaneously record firing of large groups of neurons or electrical activity in precise locations inside of neurons, such as synapses.

Optical control of synaptic transmission

Principal Investigator: Richard Kramer
UC Berkeley Helen Wills Neuroscience Institute
Title: ” Optical control of synaptic transmission for in vivo analysis of brain circuits and behavior”
BRAIN Category: Large-Scale Recording-Modulation – Optimization (RFA NS-14-008)

Dr. Kramer’s team will develop light-triggered chemical compounds that selectively activate or inhibit neurotransmitter receptors on neurons, to precisely control the signals sent between brain cells in behaving animals.

Multi-area two-photon microscopy

Principal Investigator: Fritjof Helmchen
Zurich Brain Research Institute
Title: “Multi-area two-photon microscopy for revealing long-distance communication between multiple local brain circuits”
BRAIN Category: Large-Scale Recording-Modulation – Optimization (RFA NS-14-008)

Dr. Helmchen and his colleagues propose a system to simultaneously record neuronal activity in four different areas of the neocortex and discover how brain cells in different regions interact during specific behaviors.

Electrophysiological Recording and Control

Principal Investigator: Albert Baldwin Goodell
Graymatter Research
Title: “Large-Scale Electrophysiological Recording and Optogenetic Control System”
BRAIN Category: Large-Scale Recording-Modulation – Optimization (RFA NS-14-008)

Dr. Goodell and his colleagues aim to develop optrodes, which are implantable columns of lights and wires for simultaneous electrical recording of neurons and delivery of light flashes to multiple brain areas.

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